Earnings climb as Canadian National (NYSE: CNI) lifts buybacks

Q: How did Canadian National Railway (CNI) perform financially in 2025?

Canadian National Railway grew 2025 revenues to $17,304 million , up 2% from 2024, with operating income rising 5% to $6,587 million . Net income reached $4,720 million , a 6% increase, and diluted EPS climbed 8% to $7.57 , reflecting improved margins and cost control.

Q: What were Canadian National Railway’s key profitability and cash flow metrics for 2025?

Profitability improved with an operating ratio of 61.9% , better than 63.4% in 2024, and adjusted operating ratio of 61.7% . Free cash flow was $3,336 million , up 8%, supported by $7,049 million of net cash from operating activities and disciplined investment and share repurchase programs.

Q: How is Canadian National Railway (CNI) returning capital to shareholders?

In 2025, Canadian National Railway spent $2,047 million on share repurchases and declared dividends of $3.55 per share. For 2026, the board approved a new normal course issuer bid for up to 24.0 million shares and increased the quarterly dividend by 3% to $0.9150 per share.

Q: What are Canadian National Railway’s major investment plans for 2026?

Canadian National Railway expects to invest about $2.8 billion in 2026 capital expenditures, net of customer reimbursements. These investments focus on safety, efficiency, and network integrity, while also supporting capacity growth and decarbonization initiatives, and are to be funded through operations and financing activities.

Q: How did volumes and operating efficiency trend for Canadian National Railway in 2025?

Revenue ton miles rose 1% to 238,159 million , and gross ton miles increased 1% to 463,002 million . Train length and weight both improved slightly, while fuel efficiency remained strong at 0.873 gallons per 1,000 GTMs. Network speed, dwell, and car velocity were marginally weaker year over year.

Q: What safety performance did Canadian National Railway report for 2025?

The injury frequency rate improved to a record 0.96 per 200,000 person hours in 2025, down from 1.07. However, the accident rate increased to 1.84 per million train miles from 1.69, indicating mixed safety trends even as the company continues investing in technology, training, and culture initiatives.

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

6-K

Rhea-AI Filing Summary

Canadian National Railway Company reports solid 2025 results with total revenues of $17,304 million, up 2% from 2024, driven by higher grain, intermodal and coal volumes and modest pricing gains.

Operating income rose 5% to $6,587 million, improving the operating ratio to 61.9%. Net income increased 6% to $4,720 million, with diluted EPS up 8% to $7.57. Free cash flow grew 8% to $3,336 million, supporting dividends and share repurchases.

The company consolidated the Iowa Northern Railway in 2025, plans about $2.8 billion of capital expenditures in 2026, and has board approval for a normal course issuer bid of up to 24.0 million shares and a 3% dividend increase. Safety performance improved with the injury frequency rate reduced to a record 0.96 per 200,000 person hours, although the accident rate ticked higher to 1.84 per million train miles.

Insights

Balanced year: modest growth, better margins, strong cash generation.

Canadian National Railway delivered steady expansion in 2025, with revenues up 2% to $17,304 million and operating income up 5% to $6,587 million. The operating ratio improved by 1.5 points to 61.9%, showing firmer cost discipline helped by lower fuel and the end of Canada’s federal carbon tax program.

Net income increased 6% to $4,720 million, and adjusted diluted EPS reached $7.63, up 7%. Free cash flow of $3,336 million (up 8%) comfortably covered $2,047 million of share repurchases and rising dividends. Leverage, measured by adjusted debt-to-adjusted EBITDA of 2.51 times, remained moderate for an asset‑intensive railroad.

Operationally, volumes (RTMs) grew 1% while key productivity metrics like fuel efficiency and train length were broadly stable to slightly better. Management plans about $2.8 billion of 2026 capex and authorized a new normal course issuer bid for up to 24.0 million shares plus a 3% dividend increase, continuing a shareholder return focus. Environmental, labor, and regulatory items, including a U.S. environmental site designation and evolving U.S. reciprocal switching rules, are acknowledged as risk factors but without quantified financial impact in this excerpt.

02/04/2026 - 04:03 PM

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

OF THE SECURITIES EXCHANGE ACT OF 1934

For the month of February 2026

Commission File Number: 001-02413

Canadian National Railway Company

(Translation of registrant's name into English)

935 de la Gauchetiere Street West

Montreal, Quebec

Canada H3B 2M9

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F

Form 40-F

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Canadian National Railway Company

Date:

February 4, 2026

By:

/s/ Cristina Circelli

Name:

Cristina Circelli

Title:

Vice-President, Deputy Corporate Secretary and General Counsel


Exhibit Number			Description of Exhibit
Ex 99.1			Management's Discussion and Analysis
Ex 99.2			Consolidated Financial Statements and Notes Thereto
Ex 99.3			CEO and CFO Certificates

SELECTED RAILROAD STATISTICS - UNAUDITED


	2025	2024	2023
Financial measures
Key financial performance indicators (1)
Total revenues ($ millions)	17,304	17,046	16,828
Freight revenues ($ millions)	16,681	16,395	16,236
Operating income ($ millions)	6,587	6,247	6,597
Adjusted operating income ($ millions) (2)(3)	6,636	6,325	6,597
Net income ($ millions)	4,720	4,448	5,625
Adjusted net income ($ millions) (2)(3)	4,756	4,506	4,800
Diluted earnings per share ($)	7.57	7.01	8.53
Adjusted diluted earnings per share ($) (2)(3)	7.63	7.10	7.28
Net cash provided by operating activities ($ millions)	7,049	6,699	6,965
Net cash used in investing activities ($ millions)	3,713	3,607	3,468
Free cash flow ($ millions) (2)(4)	3,336	3,092	3,887
Gross property additions ($ millions)	3,658	3,549	3,217
Share repurchases ($ millions)	2,047	2,651	4,551
Dividends per share ($)	3.55	3.38	3.16




Financial ratios
Operating ratio (%) (5)	61.9	63.4	60.8
Adjusted operating ratio (%) (2)(3)	61.7	62.9	60.8
Adjusted debt-to-adjusted EBITDA (times) (2)(4)	2.51	2.60	2.25
Return on invested capital (ROIC) (%) (2)(6)	12.9	12.9	16.8
Adjusted ROIC (%) (2)(6)	13.0	13.1	14.5
Operational measures (7)
Statistical operating data
Gross ton miles (GTMs) (millions)	463,002	457,694	452,043
Revenue ton miles (RTMs) (millions)	238,159	235,538	232,614
Carloads (thousands)	5,458	5,390	5,436
Route miles (includes Canada and the U.S., end of year)	18,900	18,800	18,800
Employees (end of year)	23,839	24,671	24,987
Employees (average for the year)	24,507	25,304	24,920
Key operating measures
Freight revenue per RTM (cents)	7.00	6.96	6.98
Freight revenue per carload ($)	3,056	3,042	2,987
GTMs per average number of employees (thousands)	18,893	18,088	18,140
Operating expenses per GTM (cents)	2.31	2.36	2.26
Labor and fringe benefits expense per GTM (cents)	0.76	0.75	0.70
Diesel fuel consumed (US gallons in millions)	404.0	401.1	395.2
Average fuel price ($/US gallon)	3.91	4.41	4.62
Fuel efficiency (US gallons of locomotive fuel consumed per 1,000 GTMs)	0.873	0.876	0.874
Train weight (tons)	9,173	9,087	9,186
Train length (feet)	7,909	7,831	7,891
Car velocity (car miles per day)	206	209	213
Through dwell (entire railroad, hours)	7.1	7.0	7.0
Through network train speed (miles per hour)	18.8	18.9	19.8
Locomotive utilization (trailing GTMs per total horsepower)	190	186	191
Safety indicators (8)
Injury frequency rate (per 200,000 person hours)	0.96	1.07	0.98
Accident rate (per million train miles)	1.84	1.69	1.80

(1)Amounts expressed in Canadian dollars and prepared in accordance with United States generally accepted accounting principles (GAAP), unless otherwise noted.

(2)These non-GAAP measures do not have any standardized meaning prescribed by GAAP and therefore, may not be comparable to similar measures presented by other companies.

(3)See the section of this MD&A entitled Non-GAAP measures – Adjusted performance measures for an explanation of these non-GAAP measures.

(4)See the section of this MD&A entitled Liquidity and capital resources – Free cash flow and Adjusted debt-to-adjusted EBITDA multiple for an explanation of these non-GAAP measures.

(5)Operating ratio is defined as operating expenses as a percentage of revenues.

(6)See the section of this MD&A entitled Non-GAAP measures – ROIC and adjusted ROIC for an explanation of these non-GAAP measures.

(7)Statistical operating data, key operating measures and safety indicators are unaudited and based on estimated data available at such time and are subject to change as more complete information becomes available. Definitions of gross ton miles, revenue ton miles, freight revenue per RTM, fuel efficiency, train weight, train length, car velocity, through dwell and through network train speed are included within the Company’s Management’s Discussion and Analysis. Definitions of all other indicators are provided on CN's website, www.cn.ca/glossary.

(8)Based on Federal Railroad Administration (FRA) reporting criteria.

CN | 2025 Annual Report 1

MANAGEMENT'S DISCUSSION AND ANALYSIS


Contents
Forward-looking statements			3
Introduction			4
2025 Highlights			5
2026 Business outlook and assumptions			8
Strategy overview			8
Human capital management			11
Financial highlights			15
2025 Results of operations			15
Non-GAAP measures			16
Revenues			21
Operating expenses			27
Other income and expenses			28
2024 Results of operations			29
Summary of quarterly financial data			36
2025 Fourth quarter operating results			36
Financial position			37
Liquidity and capital resources			38
Off balance sheet arrangements			46
Outstanding share data			46
Financial instruments			47
Recent accounting pronouncements			50
Critical accounting estimates			51
Business risks			58
Controls and procedures			66

2 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

Forward-looking statements

Certain statements included in this MD&A are "forward-looking statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995 and under Canadian securities laws, including statements based on management’s assessment and assumptions and publicly available information with respect to CN. By their nature, forward-looking statements involve risks, uncertainties and assumptions. CN cautions that its assumptions may not materialize and that current economic conditions render such assumptions, although reasonable at the time they were made, subject to greater uncertainty. Forward-looking statements may be identified by the use of terminology such as "believes," "expects," "anticipates," "assumes," "outlook," "plans," "targets," "goals," or other similar words.

Forward-looking statements include, but are not limited to, those set forth in the table below, which also presents key assumptions used in determining the forward-looking statements. See also the section of this MD&A entitled 2026 Business outlook and assumptions.


Forward-looking statements			Key assumptions
Statements relating to revenue growth opportunities, including those referring to general economic and business conditions			•North American and global economic growth in the short and long term •Long-term growth opportunities being less affected by current economic conditions •No material disruption of CN’s operations or of the economy’s supply chains as a result of pandemics or geopolitical conflicts and tensions •No further deterioration in the North American economy as a result of tariffs, trade barriers and trade actions taken by various governments and agencies globally
Statements relating to the Company's ability to meet debt repayments and future obligations in the foreseeable future, including income tax payments, and capital spending			•Adequate credit ratios •Investment-grade credit ratings •Access to capital markets •Adequate cash generated from operations and other sources of financing
Statements relating to pension contributions			•Adequate cash generated from operations and other sources of financing •Adequate long-term return on investment on pension plan assets •Level of funding as determined by actuarial valuations, particularly influenced by discount rates for funding purposes

Forward-looking statements are not guarantees of future performance and involve risks, uncertainties and other factors which may cause actual results, performance or achievements of CN to be materially different from the outlook or any future results, performance or achievements implied by such statements. Accordingly, readers are advised not to place undue reliance on forward-looking statements. Important risk factors that could affect the forward-looking statements include, but are not limited to, general economic and business conditions, including factors impacting global supply chains such as pandemics and geopolitical conflicts or tensions; trade restrictions, trade barriers, or the imposition of tariffs or other changes to international trade arrangements; industry competition; inflation, currency and interest rate fluctuations; changes in fuel prices; legislative and/or regulatory developments; compliance with environmental laws and regulations; actions by regulators and other regulatory claims or proceedings; increases in maintenance and operating costs; security threats; reliance on technology and related cybersecurity risk; transportation of hazardous materials; various events which could disrupt operations, including illegal blockades of rail networks, and natural events such as severe weather, droughts, fires, floods and earthquakes; climate change; labor negotiations and disruptions; environmental claims; uncertainties of investigations, proceedings and other types of claims and litigation; risks and liabilities arising from derailments; timing and completion of capital programs; the availability of and cost competitiveness of renewable fuels and the development of new locomotive propulsion technology; reputational risks; supplier concentration; pension funding requirements and volatility; and other risks detailed from time to time in reports filed by CN with securities regulators in Canada and the U.S., including its Annual Information Form and Form 40-F. See the section entitled Business risks of this MD&A for a description of major risk factors relating to CN.

CN has sustainability-related commitments and climate goals, and continues to assess the impact on its operations of related initiatives, plans and proposals that CN and other stakeholders (including government, regulatory and other bodies) are pursuing in relation to climate change and carbon emissions. The achievement of CN’s climate goals is subject to several risks and uncertainties, including those disclosed in the section entitled Business risks: Reputation of this MD&A. The achievement of these goals is also subject to circumstances outside of the Company’s control, including the availability and cost competitiveness of renewable fuels and the development and availability of new technologies, such as alternative propulsion locomotive technologies, and the cooperation of third parties such as suppliers, customers, supply chain partners and regulators. There can be no certainty that the Company will achieve any or all of these goals within the stated timeframe, or that achieving any of these goals will meet all of the expectations of its stakeholders or applicable legal requirements. If the Company is unable to achieve its climate goals or satisfy the expectations of its stakeholders, its brand and reputation could be materially and adversely affected.

CN | 2025 Annual Report 3

MANAGEMENT'S DISCUSSION AND ANALYSIS

Forward-looking statements reflect information as of the date on which they are made. CN assumes no obligation to update or revise forward-looking statements to reflect future events, changes in circumstances, or changes in beliefs, unless required by applicable securities laws. In the event CN does update any forward-looking statement, no inference should be made that CN will make additional updates with respect to that statement, related matters, or any other forward-looking statement. Information contained on, or accessible through, our website is not incorporated by reference into this MD&A.

Introduction

This Management's Discussion and Analysis (MD&A) dated February 4, 2026, relates to the consolidated financial position and results of operations of Canadian National Railway Company, together with its wholly owned subsidiaries, collectively "CN" or the "Company," and should be read in conjunction with the Company's 2025 Annual Consolidated Financial Statements and Notes thereto. All financial information reflected herein is expressed in Canadian dollars and prepared in accordance with United States generally accepted accounting principles (GAAP), unless otherwise noted.

CN's common shares are listed on the Toronto and New York stock exchanges. Additional information about CN filed with Canadian securities regulatory authorities and the United States Securities and Exchange Commission (SEC), including the Company's 2025 Annual Information Form and Form 40-F, may be found online on SEDAR+ at www.sedarplus.ca, on the SEC's website at www.sec.gov through EDGAR, and on the Company's website at www.cn.ca in the Investors section. Printed copies of such documents may be obtained by contacting CN's Corporate Secretary's Office.

Business profile

CN is engaged in the rail and related transportation business and powers the economy by safely transporting more than 300 million tons of natural resources, manufactured products, and finished goods throughout North America every year for its customers. With its nearly 20,000-mile rail network and related transportation services, CN connects Canada’s Eastern and Western coasts with the U.S. Midwest and the U.S. Gulf Coast, contributing to sustainable trade and the prosperity of the communities in which it operates since 1919.

CN's freight revenues are derived from seven commodity groups representing a diversified and balanced portfolio of goods transported between a wide range of origins and destinations. This product and geographic diversity better position the Company to face economic fluctuations and enhances its potential for growth opportunities. For the year ended December 31, 2025, CN's largest commodity group, Intermodal, accounted for 22% of total revenues. From a geographic standpoint, 37% of revenues relate to overseas traffic, 29% to transborder traffic, 18% to Canadian domestic traffic and 16% to U.S. domestic traffic. The Company is the originating carrier for over 85%, and the originating and terminating carrier for over 65%, of traffic moving along its network, which allows it both to capitalize on service advantages and build on opportunities to efficiently use assets.

4 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

Corporate organization

The Company manages its rail operations in Canada and the U.S. as one business segment. Financial information reported at this level, such as revenues, operating income and cash flow from operations, is used by the Company's corporate management in evaluating financial and operational performance and allocating resources across CN's network. The Company's strategic initiatives are developed and managed centrally by corporate management and are communicated to its regional activity centers (the Western Region, Eastern Region and U.S. Region), whose role is to manage the day-to-day service requirements of their respective territories, control direct costs incurred locally, and execute the strategy and operating plan established by corporate management.

See Note 23 – Segmented information to the Company's 2025 Annual Consolidated Financial Statements for additional information on the Company's corporate organization, as well as selected financial information by geographic area.

2025 Highlights

Financial results - 2025 compared to 2024

•Revenues of $17,304 million, an increase of $258 million, or 2%.

•Operating income of $6,587 million, an increase of $340 million, or 5%.

•Operating ratio, defined as operating expenses as a percentage of revenues, of 61.9%, an improvement of 1.5 points, and adjusted operating ratio of 61.7%, an improvement of 1.2 points. (1)(2)

•Net income of $4,720 million, an increase of $272 million, or 6% and adjusted net income of $4,756 million, an increase of $250 million, or 6%. (1)(2)

•Diluted earnings per share (EPS) of $7.57, an increase of 8% and adjusted diluted EPS of $7.63, an increase of 7%. (1)(2)

•Net cash provided by operating activities of $7,049 million, an increase of $350 million, or 5%, and net cash used in investing activities of $3,713 million, an increase of $106 million, or 3%.

•The Company generated free cash flow of $3,336 million, an 8% increase. (1)(3)

•Return on invested capital (ROIC) of 12.9% was in line with prior year, and adjusted ROIC of 13.0%, a decrease of 0.1 point. (1)(4)

Operating performance - 2025 compared to 2024 (5)

•Through dwell increased by 1% to 7.1 (entire railroad, hours).

•Car velocity decreased by 1% to 206 (car miles per day).

•Through network train speed decreased by 1% to 18.8 (mph).

•Fuel efficiency of 0.873 (US gallons of locomotive fuel consumed per 1,000 gross ton miles (GTMs)) was in line with prior year.

•Train length increased by 1% to 7,909 (feet).

•Revenue ton miles (RTMs) increased by 1% to 238,159 (millions).

•Injury frequency rate decreased from 1.07 to a record 0.96 (per 200,000 person hours). (6)

•Accident rate increased from 1.69 to 1.84 (per million train miles). (6)

(1) These non-GAAP measures do not have any standardized meaning prescribed by GAAP and therefore, may not be comparable to similar measures presented by other companies.

(2) See the section of this MD&A entitled Non-GAAP measures – Adjusted performance measures for an explanation of these non-GAAP measures.

(3) See the section of this MD&A entitled Liquidity and capital resources – Free cash flow for an explanation of this non-GAAP measure.

(4) See the section of this MD&A entitled Non-GAAP measures – ROIC and adjusted ROIC for an explanation of these non-GAAP measures.

(5) Statistical operating data, key operating measures and safety indicators are unaudited and based on estimated data available at such time and are subject to change as more complete information becomes available.

(6) Based on Federal Railroad Administration (FRA) reporting criteria.

2025 Financial outlook

During the year, the Company issued and updated its 2025 financial outlook. The 2025 actual results were in line with the Company's last 2025 outlook that was updated on July 22, 2025.

CN | 2025 Annual Report 5

MANAGEMENT'S DISCUSSION AND ANALYSIS

Business acquisition

Iowa Northern Railway Company

On December 6, 2023, the Company acquired the shares of the Iowa Northern Railway Company (IANR), a Class III short-line railroad that owns and leases approximately 175 route miles in northeast Iowa that are connected to CN’s U.S. rail network. CN paid US$230 million ($312 million), including transaction costs to date. IANR serves upper Midwest agricultural and industrial markets covering many goods, including biofuels and grain. This transaction represents a meaningful opportunity to support the growth of local business by creating single-line service to North American destinations, while preserving access to existing carrier options.

The shares of IANR were deposited into an independent voting trust while the U.S Surface Transportation Board (STB) considered the Company's application to acquire control of IANR. During the trust period, IANR continued to be operated under its current management and the Company could not exercise day-to-day control. As a result, the Company recorded its investment in IANR at its acquisition cost under the equity method of accounting.

On January 14, 2025, the STB issued a final decision approving CN’s application to acquire control of IANR, subject to certain conditions. The Company assumed control of IANR on March 1, 2025 (Control Date) and began consolidating IANR on that date, accounting for the acquisition as a business combination achieved in stages. The Company derecognized its previously held equity method investment in IANR of $320 million as of March 1, 2025 and remeasured the investment at its Control Date fair value of $344 million resulting in a net remeasurement gain of $24 million recorded in Other income in the Consolidated Statements of Income. The fair value of the previously held equity interest in IANR was determined through the use of a discounted cash flow approach, which incorporated the Company’s best estimates of various assumptions including, but not limited to, discount rates and terminal growth rates and multiples.

The Company's Consolidated Balance Sheet includes the assets and liabilities of IANR as of the Control Date, and since that time, IANR’s results of operations have been included in the Company's results of operations. The Company has not provided pro forma information relating to the pre-control date period as the acquisition was not material.

U.S. regulatory updates

Reciprocal switching

On April 30, 2024, the STB issued a final rule for reciprocal switching for inadequate service. The STB’s new rule allows customers to obtain reciprocal switching access to an alternate carrier in a terminal area if the incumbent railroad’s service falls below one of three objective metrics (original estimated time of arrival, transit time, and first-mile/last-mile service) and if certain other conditions are met. Any prescribed reciprocal switching arrangement for a facility in the United States would be effective for a period between three to five years and could be renewed. On May 10, 2024, the Company and two other railroads filed a petition for review of the rule with the U.S. Court of Appeals for the Seventh Circuit. On July 8, 2025, the U.S. Court of Appeals for the Seventh Circuit vacated the STB’s reciprocal switching rule, following a petition for review filed by the Company and two other railroads. The decision became effective on September 2, 2025. On January 7, 2026, the STB proposed to repeal its existing regulations on prescription of reciprocal switching, which require a showing of anticompetitive conduct, and replace them with case-by-case adjudication under the statutory standards established by Title 49 of the United States Code (Transportation).

No assurance can be given that these and any other current or future regulatory or legislative initiatives by the U.S. federal government and agencies will not materially adversely affect the Company's results of operations or its competitive and financial position.

Environmental matters

Under the Comprehensive Environmental Response, Compensation and Liability Act of 1980 (CERCLA), the Company through one of its subsidiaries was notified by the U.S. Environmental Protection Agency (EPA) on February 28, 2024 that the EPA considers it a potentially responsible party (PRP), along with at least five other previously notified parties, with respect to the Matthiessen & Hegeler Zinc Company Site (Site) in LaSalle, Illinois. The EPA also requested that the Company respond to certain information requests, which the Company did on June 30, 2024. The Company’s designation as a PRP is based on claims that the Company, or its predecessors, had land holdings historically that were leased to others for commercial or industrial uses that may allegedly have resulted in the disposal of hazardous substances onto the Site. Based on remedial investigations and feasibility studies previously conducted, the EPA issued a Record of Decision outlining the clean-up plan for the Site and certain off-Site areas. In the second quarter of 2025, CN received a special notice letter from the EPA which requested CN to respond with a good faith offer by August 4, 2025. The Company responded to the EPA on August 4, 2025 reiterating why it should not be considered a PRP for the Site and as at February 4, 2026, there have been no further developments. The Company has not accrued for any obligation related to the remediation of the Site as it has not been able to confirm to what, if any, extent it contributed to the contamination, the extent and cost of remediation and the contribution of other potentially responsible parties and their ability to pay for their obligations.

6 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

For matters where a loss is reasonably possible but not probable, a range of potential losses cannot be estimated due to various factors which may include the limited availability of facts, the lack of demand for specific damages and the fact that proceedings were at an early stage.

Labor and workforce negotiations

CN is involved in several ongoing negotiations concerning labor matters, including the negotiation of new collective agreements as described below. There can be no assurance that the Company will be able to reach a tentative agreement without a strike or lockout or that the resolution of these negotiations, or the outcome of any arbitration or litigation, will not have a material adverse effect on the Company's results of operations or financial position.

The Company’s existing collective agreements remain in effect until the bargaining process outlined under the Canada Labor Code or the U.S. Railway Labor Act has been exhausted.

Canadian workforce

Teamsters Canada Rail Conference

On April 7, 2025, an arbitrator issued a binding decision, setting the terms of a new three-year collective agreement between CN and Teamsters Canada Rail Conference (TCRC). The three-year agreement covers approximately 6,000 conductors, conductor trainees, yard coordinators and locomotive engineers across CN’s network in Canada and is retroactively effective beginning January 1, 2024 until December 31, 2026.

International Brotherhood of Electric Workers

On February 14, 2025, the new collective agreement with the International Brotherhood of Electric Workers (IBEW) was ratified. The four-year agreement covers approximately 750 Signals and Communications employees in Canada until December 31, 2028.

U.S. workforce

The general approach to labor negotiations by U.S. Class I railroads is to bargain on a collective national basis with the industry, which CN's subsidiaries Grand Trunk Western Railroad Company (GTW), companies owned by Illinois Central Corporation (ICC), Wisconsin Central Ltd. (WC), and Bessemer & Lake Erie Railroad Company (BLE) currently participate in for collective bargaining agreements covering all union-represented employees, with the exception of two employee groups working at Pittsburgh and Conneaut Dock Company (PCD). On November 1, 2024, the National Carriers Conference Committee (NCCC) served a Section 6 notice pursuant to the Railway Labor Act (RLA), which officially opened collective bargaining for the freight industry. As at the date of this MD&A, agreements have been reached and ratified with eleven unions and negotiations continue with the remaining one union. There can be no strike or lockout until such time as the parties have failed to reach voluntary agreements and all dispute resolution mechanisms of the RLA have been exhausted. While negotiations are ongoing and until all RLA provisions have been exhausted, all existing contract terms remain in place.

Leadership changes

On October 20, 2025, Patrick Whitehead was appointed as CN's Executive Vice-President and Chief Operating Officer. Patrick's appointment follows the departure of Derek Taylor, former Executive Vice-President and Chief Field Operating Officer, from the Company.

On July 21, 2025, Janet Drysdale was appointed as CN's Chief Commercial Officer on an interim basis, following the departure of Remi G. Lalonde. On October 20, 2025, Janet Drysdale was appointed as Executive Vice-President and Chief Commercial Officer.

On April 14, 2025, Bhushan Ivaturi was appointed as CN's Executive Vice-President and Chief Information and Technology Officer succeeding Dominique Malenfant.

Shareholder returns

On January 30, 2026, the Company announced that its Board of Directors had approved a new Normal Course Issuer Bid (NCIB), which allows for the repurchase of up to 24.0 million common shares between February 4, 2026 and February 3, 2027. In addition, the Company's Board of Directors approved an increase of 3% to the quarterly dividend to common shareholders, from $0.8875 per share in 2025 to $0.9150 per share in 2026, effective for the first quarter.

CN | 2025 Annual Report 7

MANAGEMENT'S DISCUSSION AND ANALYSIS

2026 Business outlook and assumptions

The 2025/2026 grain crops in Canada and the U.S. were above their respective five-year averages. The Company assumes that the 2026/2027 grain crops in Canada and the U.S. will be in line with their respective five-year averages. The Company notes there is a heightened demand risk as a result of the volatile macroeconomic conditions and global trade tensions.

In 2026, the Company expects to invest approximately $2.8 billion in its capital program, net of amounts reimbursed by customers, to improve the safety, efficiency and integrity of its network. These investments are intended to also enable and support the growth of the Company and will be financed with cash generated from operations or with cash from financing activities.

The forward-looking statements discussed in this section are subject to risks and uncertainties that could cause actual results or performance to differ materially from those expressed or implied in such statements and are based on certain factors and assumptions which the Company considers reasonable about events, developments, prospects and opportunities that may not materialize or that may be offset entirely or partially by other events and developments. In addition to the assumptions and expectations discussed in this section, reference should be made to the section of this MD&A entitled Forward-looking statements for assumptions and risk factors affecting such statements.

Strategy overview

CN’s purpose is to power the economy by enabling global supply chains and moving goods sustainably and efficiently, working together with our customers, our people, and the communities in which we operate. CN is committed to delivering a safe, consistent and reliable scheduled service that creates value for customers, shareholders and stakeholders. CN’s "make the plan, run the plan, sell the plan" operating approach has driven strong operational, safety, and customer service outcomes.

CN aims to drive consistent shareholder returns over the long-term by striving for sustainable financial performance, including profitable top-line growth, strong free cash flow generation and return on invested capital well above the Company’s cost of capital. CN also returns value to shareholders through dividend payments and share repurchases.

Build service excellence, grow our business and invest in our people

CN will continue to focus on sustaining and building service excellence, growing the business and developing our people. Providing reliable and efficient customer service is the foundation for growth. CN aims to leverage its strong customer service and operating efficiency of rail to grow the business profitably. CN continues to invest in the safety and fluidity of the network, and in increasing capacity to cost effectively grow volumes. CN is also investing to drive incremental fuel and carbon efficiency and to improve network resiliency. Critical to CN’s long-term success are efforts to ensure an optimal workforce with the right skills and leadership capabilities is available to meet the challenges of tomorrow.

Disciplined capital allocation and execution

CN's success depends on a steady stream of capital investments that are aligned with and support its business strategy. These investments cover a wide range of areas, from track infrastructure and rolling stock to information and operating technologies, as well as other equipment and assets that are intended to improve the safety, efficiency, capacity and reliability of CN's service offering. Investments in track infrastructure are designed to enhance the safety and integrity of the physical plant, increase the capacity and fluidity of the network, promote service excellence, and support growth. New locomotives equipped with distributed power capability increase capacity, fuel and carbon productivity and efficiency, and improve service reliability, particularly in cold weather, while improving train handling and safety. Targeted railcar acquisitions aim to tap growth opportunities, complementing the fleet of privately owned railcars that traverse CN's network. CN is also investing in various technologies to improve operational productivity, enable automation in various areas and improve the customer experience. CN's long-term economic viability depends on the presence of a supportive regulatory and government policy environment that encourages investment and innovation.

The multi-year implementation of CN’s strategic plan requires a disciplined, analysis-driven approach to capital investment and a focus on deploying capital as efficiently as possible. Talent, technology and capital need to be fully aligned. The Company’s capital investment roadmap includes several core elements:

•Investing in the maintenance of a safe and reliable network.

•Investing in asset infrastructure to increase the capacity of its three-coast network.

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MANAGEMENT'S DISCUSSION AND ANALYSIS

•Developing a portfolio approach to technology with business-led investment decisions, delivering value at each stage of implementation.

•Deepening supply chain partnerships with its customers, including road-to-rail conversion.

•Investing in technologies and capital assets to support decarbonization of its footprint.

•Growing its physical and commercial reach through strategic partnerships and acquisitions.

Delivering Responsibly

Sustainability is at the heart of how CN is building for the future. Delivering Responsibly is the encapsulation of the Company’s sustainability strategy and commitments. The Company is focused on transporting goods safely and efficiently, doing so in a manner that seeks to minimize the impact on the environment, attracting, and developing top talent, and helping to build stronger, safer communities, while adhering to the highest governance standards and supporting shareholder value. CN understands that transparency is essential for stakeholder trust concerning the Company’s sustainability commitments. In that regard, CN seeks to align its sustainability disclosures with global best practice frameworks, reporting on commitments and performance with focus, clarity and comparability. In 2025, CN published its latest biennial sustainability report, outlining the Company's goals, programs and achievements in corporate governance, environment, safety, people, community involvement and stakeholder engagement. CN is proud of its 2025 accomplishments including earning a placement on the Corporate Knights list of Canada’s Best Corporate Citizens for the 17th year in a row as well as announcing that CN was awarded Best ESG reporting (Large Cap) at the IR Impact Awards Canada 2025 hosted by IR Magazine, recognizing the Company’s strong performance in communicating its sustainability efforts to investors.

Safety is a core value

CN is committed to the health and safety of its employees, the communities and environments in which it operates and the customers it serves. The Company embraces a values-based safety culture. CN’s objective is to eliminate serious injuries and fatalities. The Company is employing advanced technologies and innovative training to help achieve this goal. More specifically, CN is:

•Fostering an engaged workforce that understands and respects Life Critical Rules.

•Embedding a mindset whereby employees take ownership for their own safety and the safety of others by Looking Out for Each Other.

•Implementing Behavior-Based Training to encourage proactive safety behaviors, focused on the importance strong leadership plays in establishing the safety culture in the workplace. The culture that is created influences the level of exposure for employees.

•Assessing and addressing its Safety Culture to reach a level where employees actively evolve and improve safety procedures.

•Ensuring customer safety through communication procedures and safety resources on critical safety practices.

•Training employees on Risk Reduction to ensure they understand Serious Injury/Fatality potential injuries and how to mitigate them.

•Adopting a Fatigue Risk Management Program to provide employees with knowledge and tools necessary to understand the cause and risk of fatigue.

•Training employees to identify and mitigate exposures through scenario-based methodologies and through advanced technologies, including Virtual Reality.

•Providing new hire employees ergonomic training through available exercise programs.

•Using advanced technologies to proactively mitigate human error and reduce risk.

•Maintaining reliable and safe equipment and infrastructure.

•Investing in employee training, coaching, recognition and engagement initiatives.

•Carrying out a targeted risk-based audit program.

See the section of this MD&A entitled Human capital management - Health and safety for additional information regarding CN's safety initiatives.

Tackling the impact of climate change

The Company's goal is to conduct its operations in a way that seeks to minimize environmental impact and build resilience to climate related events to mitigate service disruption, while offering a carbon-efficient and sustainable way to move goods. CN is focused on playing a key role in the transition to a lower-carbon economy.

With 85% of its direct greenhouse gas (GHG) emissions generated from rail operations, CN focuses on five key strategic areas in the view of reducing GHG emissions: fleet renewal, innovative technology, big data, operating practices and cleaner fuels. Over the years, this focus has resulted in significant progress in decoupling CN's volume growth from locomotive carbon emissions intensity. CN also continues to remain a leader in locomotive fuel efficiency among Class I North American railways, consuming approximately 15% less locomotive fuel per gross ton mile than the industry average. CN aims to reduce GHG emissions in line with the Paris Agreement and in 2025, received approval for its science-based net-zero goal from the Science Based Targets initiative (SBTi).

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MANAGEMENT'S DISCUSSION AND ANALYSIS

To achieve its decarbonization goals, CN will need to continue improving the fuel efficiency of its fleets, increase its use of renewable fuels and test, and eventually deploy alternative propulsion locomotive technologies. Collaboration with suppliers, customers, supply chain partners, innovators and regulators is critical for CN to deliver on its climate commitments and to help drive economic prosperity in a lower-carbon emissions environment.

The Company's CDP Report, including a Task Force on Climate-related Financial Disclosures (TCFD) index, is available on CN's website in the Delivering Responsibly section. Information contained on, or accessible through, our website is not incorporated by reference into this MD&A.

Building the talent and culture to drive CN's continuous performance

CN aims to attract, develop, and retain the best talent, building a workforce that embodies the values we firmly believe in. We aim to cultivate an inclusive work environment where all employees feel valued, engaged, and motivated. We train our people with the necessary skills to remain competitive and at the forefront of innovation.

Development programs are tailored to specific roles and capabilities, with a strong focus on frontline supervisors who lead our largest employee group. CN’s workplace culture is shaped by leadership that prioritizes care, collaboration, and safety.

CN continues to offer curated development journeys tailored to specific talent cohorts. These programs accelerate readiness, enhance critical skills, and drive performance and growth across the Company.

See the section of this MD&A entitled Human capital management for additional information regarding CN's human capital initiatives.

Community engagement

At CN, we are committed to leading responsibly. By being good neighbors who listen, learn, and do our part to help build safer, stronger, more prosperous communities, we acknowledge the impact we have on all our stakeholders. Connecting Canada’s Eastern and Western coasts with the U.S. Gulf Coast, CN spans eight provinces, 16 states, and operates within or adjacent to more than 220 reserve lands of nearly 130 First Nations and Métis communities in Canada, seven Tribal communities in the U.S., and more than 2,000 towns and cities across its network. CN plays an essential role and contributes to economic prosperity through job creation, investments and freight transportation services. The Company seeks open and proactive engagement to ensure stakeholders and Indigenous communities are aware of its strategy, operations, opportunities and obligations, and aims to foster effective two-way communications that ensure a respectful and beneficial exchange.

CN also partners with communities to enhance railway safety. Under CN's Structured Community Engagement Program, the Company engages with municipal officers, Indigenous leaders and their respective emergency responders to assist them in their emergency response planning. During this frequent outreach, CN discusses its comprehensive safety programs and performance, the nature, volume and economic importance of dangerous goods it transports through their communities and emergency response planning. CN annually conducts hundreds of training events for thousands of emergency responders, totaling over 135,000 first responders since 1988. Additional training sites have been constructed to offer onsite full scale dangerous goods training. Training activities are also supported by annual spill drill exercises, engaging local first responders and agencies, in addition to stakeholders and rightsholders, as well as local first nation communities, while building resiliency within CN’s response contractor and sub-contractor network.

This outreach builds on CN's involvement in Transportation Community Awareness and Emergency Response (TRANSCAER®), through which the Company has been working for many years to help communities in Canada and the U.S. understand the movement of hazardous materials and what is required in the event of transportation incidents. All Aboard for Safety is CN’s flagship community education program. Every year, CN employees make hundreds of presentations and talk to thousands of children and adults at schools and community events in Canada and the U.S. about the importance of rail safety and the dangers of walking or playing on or near railway tracks.

CN is committed to fostering sustainable communities through strategic financial contributions to hundreds of grassroots, regional and national non-profit organizations across our North American footprint. We actively partner with organizations and provide funding to support causes that align with CN core values and resonate with our railroaders. These include disaster relief; mental health initiatives; inclusive workplaces and environments; poverty; and environmental stewardship. In 2025, CN partnered with over 700 charitable organizations across its network, creating a positive impact in the communities where it operates.

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MANAGEMENT'S DISCUSSION AND ANALYSIS

We take immense pride in our employees, retirees, and their families who volunteer to make their communities better places to live, work and play. The CN Railroaders in the Community program recognizes these efforts by providing donations to community-based non-profit organizations supported by our volunteers. In 2025, CN railroaders volunteered more than 162,000 hours in support of their favorite charities.

Working alongside Indigenous communities, CN makes it a priority to strengthen its ties, cultivate respectful and mutually beneficial relationships, and work toward reconciliation. After the public acknowledgement of the complex history of railways and the role they played as instruments of colonial policies in 2023, in early 2024 CN published its first Indigenous Relations Policy, and in November 2024 adopted and published its first Indigenous Reconciliation Action Plan (IRAP). The IRAP is guiding CN’s reconciliation efforts in Canada until 2027. Throughout 2025, the first year of the IRAP, many commitments were implemented in all five pillars in Canada. These steps reflect CN's dedication to meaningful change and reconciliation.

Human capital management

The Company continues to focus on onboarding new hires successfully, helping them build positive relationships with their colleagues and supporting all employees to grow and develop, while deepening its commitment to develop talent and plan for the future.

Governance

CN’s Senior Vice President and Chief Human Resources Officer has leadership accountability for the Company’s workforce policies and programs and reports directly to the CEO. CN’s Board and its committees, including the Governance and Sustainability Committee and Human Resources and Compensation Committee (HRCC) provide oversight of the Company's human capital management strategies, programs, practices and performance. The HRCC is responsible for monitoring executive management’s performance, compensation and succession planning as well as ensuring effective talent management and monitoring union relations and strategy for consistency with CN’s strategic direction. The HRCC also has the mandate to review human resources practices and policies by ensuring, amongst other things, that appropriate human resources programs, practices and systems are in place so that the Company can attract, motivate and retain the quality of employees required to meet its business objectives. The Company’s senior management provides regular briefings on human capital matters to the Board and its committees to facilitate oversight.

The Board of Directors and management are committed to maintaining and instilling a strong ethical culture at CN, and as such, have developed a solid ethics program based on CN’s core values of integrity and respect. The Governance and Sustainability Committee has oversight over CN's ethics program. Each director, executive officer and management employee must certify annually their compliance with the Code of Business Conduct and employees are required to complete an online training course on the Code of Business Conduct. Integrity training is also part of every new employee’s onboarding program. In addition, Anti-Fraud Policy and Guidelines apply to all employees of CN and its wholly owned subsidiaries and set out steps to be taken in response to reported or suspected fraud in all its forms, as well as measures that are taken to identify, prevent and manage fraud-related risks.

Total employees

As at December 31, 2025, CN employed a total of 17,176 employees in Canada (2024 – 17,873), of which 12,486, or 73%, were unionized employees (2024 – 12,887, or 72%) and 6,663 employees in the U.S. (2024 – 6,798) of which 5,592, or 84%, were unionized employees (2024 – 5,703, or 84%).

Health and safety

CN is committed to the health and safety of its employees, the customers it serves, and the communities and environments in which it operates. The Company's long-term safety improvement is driven by continued investments in infrastructure, rigorous safety processes and exposure reduction efforts, as well as efforts to continue deepening the Company’s safety culture. The attainment of annual accident and injury targets is a component of management’s annual incentive bonus plan. The Company’s injury frequency rate and accident rate, defined according to the criteria of the Federal Railroad Administration (FRA), are provided for the entire company’s operations and are publicly disclosed on a quarterly basis. See the section of this MD&A entitled Selected railroad statistics for additional information on CN’s safety measures.

CN’s culture and commitment to safety is supported by its focus on training, leadership, and technology. CN's Safety Management System is the framework for putting safety at the center of its day-to-day operations. This proactive plan is designed to minimize risk, drive continuous improvement in the reduction of injuries and accidents, and engage employees at all levels of the organization.

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MANAGEMENT'S DISCUSSION AND ANALYSIS

The Looking Out For Each Other peer-to-peer engagement program focuses on raising awareness among all employees of the top causes of incidents and injuries, identifying and reviewing safe work procedures, training employees to be aware of their surroundings and recognize potential at-risk work practices, teaching employees how to provide constructive feedback to their peers and learning from past incidents. The Company's Life Critical Rules address the day-to-day activities that have the potential to cause serious harm or even loss of life. They are based on past incidents and are designed to help ensure they do not happen again. CN's safety leadership training program is heavily focused on teaching employees the importance of controlling exposures to risk and on developing the attitudes and behaviors required for a value-driven safety culture.

CN's Train Tube initiative enhances peer-to-peer engagement by providing employees with short videos demonstrating procedural tasks, serving as practical guides for safe and correct completion. Building on this, the "Your Actions Matter" campaign takes a dramatic approach to highlight the serious consequences of inattention, reinforcing the importance of vigilance and adherence to safety protocols. These impactful videos, available for employees to view at their convenience, reinforce procedural knowledge and empower them to prioritize safety in every action they take.

CN collaborates with customers and suppliers to ensure adherence to Life Critical Rules and promote a shared safety culture. A newly developed handbook guides customers on essential safety practices, winter hazard management, and emergency protocols, reinforced by Train Tube-style videos that offer accessible visual guides for safety protocols. As part of ongoing improvements, CN will add videos specific to winter conditions to further support safe operations during challenging seasonal weather.

CN continues to leverage technology to drive improved safety performance. AI and sensor technology in autonomous track inspection cars enable real-time track inspections at normal track speed. Automated inspection portals with ultra-high-definition cameras capture a 360° view of trains, enhancing the quality and frequency of railcar inspections. Additional wayside detection systems, including acoustic bearing detectors, have been installed across the network to identify potential problems earlier and reduce the risk of accidents. Electronic Track Authority Verification (ETAV), a geospatial navigation aid application, improves safety for track maintenance vehicle operators by providing precise location information and warnings regarding Track Authority limits.

CN strives for continuous improvement in our environmental, health, safety, and security (EHS&S) performance and is proud to be a long-standing Responsible Care® Partner. Triennially, CN undergoes a Responsible Care® audit conducted by an external audit team to ensure CN’s processes, programs and policies meet the rigorous Responsible Care® Management System Specifications, Guiding Principles and Stewardship Codes.

CN's Health and Wellness Program - Sprout

CN's Mobile Wellness platform helps employees strengthen their commitment to a healthy lifestyle. Employees are encouraged to download the “Sprout” work app to begin tracking their daily activities to unlock quarterly rewards. The Sprout app allows tracking of health-conscience activities to include walking, hydration, and healthy eating. The more tracked, the more points earned to claim rewards.

EFAP Health and Wellness Program

Both TELUS Health and Cigna Healthcare offer free monthly behavioral health awareness seminars on autism, eating disorders, substance use and children’s behavioral health issues. These seminars are live and available to join virtually for all CN employees. TELUS Health and Cigna Healthcare offer free information on General Health and Wellness topics:

•Fitness and Exercise

•Family Health and Parenting

•Health topics for other diverse groups including Military/Veteran Health, LGBTQ+ Health, and Senior Health

Talent management

Attraction and recruitment

CN aligns its talent strategy with evolving business priorities by emphasizing both the acquisition and development of essential skills and capabilities. This integrated approach enables the organization to deliver on its commitments, navigate operational challenges, and build a resilient talent pipeline to mitigate future risks.

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MANAGEMENT'S DISCUSSION AND ANALYSIS

CN continues to actively partner with universities, technical schools and colleges as well as various communities across Canada and the U.S., to build strong visibility of career opportunities at CN. This is enabling CN to develop a steady talent-stream to the organization. New development programs for early career employees and recent graduates support the conversion of students within CN’s Internship program, which welcomes more than 120 university students ever year.

With the launch of its IRAP last year, the organization focused on meeting its first-year commitments including developing a strategy to attract, hire and develop more Indigenous talent in addition to creating greater procurement opportunities for Indigenous-owned businesses in Canada.

In the past year, CN has focused on training and attracting talent to CN, leveraging virtual reality (VR) technology to provide candidates and employees with simulations of several common railroad jobs. In the virtual simulations, candidates can climb the side of rail cars or signal towers, choose to drive a train, operate a crane or work on a track. These immersive experiences enable candidates to assess their suitability for a role more effectively. CN Campus is revolutionizing workforce training through immersive technologies integrating Virtual and Augmented Reality (VR/AR) into safety and operational learning. Simulations like “Live Track – Near Miss,” “Switches & Routing VR,” and “Air Brakes VR,” blend real-world scenarios with digital environments to enhance decision-making and operational readiness.

Training and development

CN offers a variety of training and development programs, which cover regulatory, compliance or CN business mandated requirements or are part of an employee's learning journey and development. This ensures that its employees are equipped to perform in their roles and prepare for career advancement opportunities, as required.

The Company offers trainings in technical, business and leadership programs, with either online, e-learning or virtually-led courses, and, when possible, through in-person sessions. CN also continues to invest in our training centers in Winnipeg, MB, and Homewood, IL. People leaders are supported in building the skills and knowledge needed to successfully perform at each level and this includes a focus on enhancing communication skills, increasing collaboration to break silos while increasing teamwork and embedding strong principles and abilities of inclusive leadership throughout our workforce. In 2025, CN expanded and scaled its offering of self-guided and self-paced learning (curated playlists & curricula and linguistics improvement) to allow for development tools to be available throughout the year and to be self-directed by the employee, when it is most convenient.

Leadership curricula and development programs

In 2025, 1,875 people managers focused on an expanded Leadership curricula targeting skills such as collaboration, critical thinking, growth mindset and change management. Over 75 cohorts of leadership training were successfully deployed to CN management. CN also deployed curated development programs for emerging talent such as the leadership program LINK as well as mentoring and coaching to management employees (12,700 hours). CN continues to offer various differentiated development journeys for its talent cohorts, including understanding railway operations, metrics, and business acumen, in order to support growth and advancement.

Front-Line Supervisor Program (FLS)

In 2025, the FLS Operations functions were invited to join nine additional cohorts of the Front-Line Supervisor Program with a focus on three critical components to help build their skills and role effectiveness (foundational, technical and safety & people leadership). The FLS Program continues to run monthly sessions in Winnipeg, Homewood and Montreal.

Educational Financial Assistance (EFA) Program

In 2025, the EFA program for continuing education available to union represented and management employees saw an increase of over 44% in continued learning reimbursements to the EFA program since 2024.

Performance

CN supports its employees through a structured performance management process. At the beginning of each year, non-unionized employees set goals for the year that align to its business strategy and objectives. At mid and year-end, there is a formal discussion and review of progress against these goals as well as how they were achieved. CN continues to emphasize the importance of a performance-based culture. During 2025, CN continued to refine and create new development planning tools to support and encourage our employees to own their career and build actionable development plans. In addition, there are also customized development discussions with key talent to accelerate readiness and enhance skills, capabilities and experience across the talent pools.

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MANAGEMENT'S DISCUSSION AND ANALYSIS

Compensation

CN’s approach to compensation continues to be driven by our goal to deliver sustainable value creation, while ensuring that target compensation supports the attraction and retention of talent. Compensation programs are designed to encourage appropriate behaviors and include appropriate risk mitigation mechanisms. In addition, compensation best practices adopted by CN include industry benchmarking and pay positioning as well as pay equity reviews in compliance with local laws.

CN offers a competitive compensation portfolio that consists of base salary, employee share investment plan, short-term and long-term incentives (applicable to certain employees only), benefits, retirement plans and other non-monetary elements.

Inclusive workplace

CN believes that inclusion and respect are critical to creating an environment that can attract and retain the best talent – a key to making us more innovative, fair and productive. Our success is built on the collective strength of our dedicated railroaders, whose varied backgrounds and unique perspectives fuel our innovation and accomplishments.

The Company's approach for a fair and inclusive CN, where everyone feels welcome and succeeds, revolves around five pillars.

•Cultivate inclusion through people and culture: empower everyone to foster belonging.

•Invest in accessible and inclusive infrastructure: create spaces where all can thrive.

•Build fair and inclusive systems: ensure equal opportunities in policies and processes.

•Raise awareness to enhance understanding and engagement: promote ongoing education and dialogue.

•Measure progress and accountability: track results and drive improvement.

CN’s inclusion journey in 2025 was marked by intentional investments, enhanced training, and a renewed focus on psychological safety – a lever for inclusion. These efforts, supported by robust measurement and communication, are helping to build a workplace where everyone feels valued and empowered to contribute. Building on this foundation, the Company implemented several key initiatives to advance inclusion and psychological safety across the organization.

•Mobilized a network of employee ambassadors to promote well-being, psychological safety, and inclusive practices throughout CN.

•Invested in infrastructure improvements to enhance workplace accessibility and support an inclusive environment.

•Advanced commitments under the IRAP plan through a multi-year strategy focused on inclusive employment practices in Canada.

•Strengthened internal communications by centralizing resources and amplifying employee voices through Employee Resource Groups (ERGs) branded campaigns and dedicated platforms.

CN aspires to maintain a highly qualified Board in which independent Board members are comprised of at least 40% of each gender (male and female) and at least two members come from the broader underrepresented groups, beyond gender. Currently, 6 out of 11, or 55% of independent Board members are women and two, or 18% of independent Board members are from underrepresented groups as such terms are defined under the Employment Equity Act, S.C. 1995, c. 44. CN reiterates its gender diversity goals for executive management (comprising all Vice-Presidents and more senior positions), whereby by the end of 2027, and thereafter, CN aspires to maintain an executive management team in which at least 35% of this group are highly qualified women. As of the date of this MD&A, 35%, or nine out of the 26 executive management roles, were held by women. CN intends to maintain its standards of hiring and promoting based on merit while working towards achieving its aspirations as to representation on its Board and in executive management positions.

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MANAGEMENT'S DISCUSSION AND ANALYSIS

Financial highlights


										% Change
										Favorable/(Unfavorable)
In millions, except percentage and per share data	2025			2024			2023			2025 vs 2024		2024 vs 2023
Revenues	$	17,304		$	17,046		$	16,828		2	%	1	%
Operating income	$	6,587		$	6,247		$	6,597		5	%	(5	%)
Adjusted operating income (1)(2)	$	6,636		$	6,325		$	6,597		5	%	(4	%)
Net income	$	4,720		$	4,448		$	5,625		6	%	(21	%)
Adjusted net income (1)(2)	$	4,756		$	4,506		$	4,800		6	%	(6	%)
Basic earnings per share	$	7.58		$	7.02		$	8.55		8	%	(18	%)

Diluted earnings per share	$	7.57		$	7.01		$	8.53		8	%	(18	%)
Adjusted diluted earnings per share (1)(2)	$	7.63		$	7.10		$	7.28		7	%	(2	%)
Dividends declared per share	$	3.55		$	3.38		$	3.16		5	%	7	%
Operating ratio (3)	61.9		%	63.4		%	60.8		%	1.5	pts	(2.6)	pts
Adjusted operating ratio (1)(2)	61.7		%	62.9		%	60.8		%	1.2	pts	(2.1)	pts
Net cash provided by operating activities	$	7,049		$	6,699		$	6,965		5	%	(4	%)
Net cash used in investing activities	$	3,713		$	3,607		$	3,468		(3	%)	(4	%)
Free cash flow (1)(4)	$	3,336		$	3,092		$	3,887		8	%	(20	%)

										% Change
										Favorable/(Unfavorable)
In millions, except percentages	As at December 31, 2025			As at December 31, 2024			As at December 31, 2023			2025 vs 2024		2024 vs 2023
Financial position
Total assets	$	58,555		$	57,067		$	52,666		3	%	8	%
Total long-term liabilities (5)	$	33,291		$	32,040		$	27,514		(4	%)	(16	%)

(1)These non-GAAP measures do not have any standardized meaning prescribed by GAAP and therefore, may not be comparable to similar measures presented by other companies.

(2)See the section of this MD&A entitled Non-GAAP measures – Adjusted performance measures for an explanation of these non-GAAP measures.

(3)Operating ratio is defined as operating expenses as a percentage of revenues.

(4)See the section of this MD&A entitled Liquidity and capital resources – Free cash flow for an explanation of this non-GAAP measure.

(5)Total long-term liabilities is the difference between Total liabilities and Total current liabilities.

2025 Results of operations

Revenues for the year ended December 31, 2025 were $17,304 million compared to $17,046 million in 2024, an increase of $258 million, or 2%. The increase was mainly due to higher volumes and higher freight revenue per RTM:

•Volumes: increased mainly due to higher exports of U.S. and Canadian grain, higher shipments of domestic and international intermodal, including the impact of the TCRC-related labor uncertainty and work stoppage in the third quarter of 2024 and West Coast port related labor disruptions in the fourth quarter of 2024, higher exports of Canadian metallurgical coal and natural gas liquids; partly offset by lower shipments of forest products, refined petroleum products, frac sand and iron ore.

•Freight revenue per RTM: increased mainly due to freight rate increases and the positive translation impact of a weaker Canadian dollar; partly offset by lower applicable fuel surcharge rates and the impact of the April 1, 2025 elimination of the Canadian federal carbon tax program, the cost of which was charged back to customers.

Operating expenses for the year ended December 31, 2025 were $10,717 million compared to $10,799 million in 2024. The decrease of $82 million, or 1%, was mainly due to the impact of the April 1, 2025 elimination of the Canadian federal carbon tax program, lower fuel prices, lower average headcount and the loss on assets held for sale recorded in the second quarter of 2024; partly offset by the negative translation impact of a weaker Canadian dollar and general wage increases.

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MANAGEMENT'S DISCUSSION AND ANALYSIS

Operating income for the year ended December 31, 2025 increased by $340 million, or 5%, to $6,587 million, when compared to the same period in 2024. The operating ratio was 61.9% in 2025, compared to 63.4% in 2024, a 1.5 point improvement.

Net income for the year ended December 31, 2025 was $4,720 million, an increase of $272 million, or 6%, when compared to 2024, and diluted earnings per share increased by 8% to $7.57.

Key operating metrics


				% Change
				Favorable/(Unfavorable)
	2025	2024	2023	2025 vs 2024		2024 vs 2023
Gross ton miles (GTMs) (millions) (1)	463,002	457,694	452,043	1	%	1	%
Train weight (tons) (2)	9,173	9,087	9,186	1	%	(1	%)
Train length (feet) (3)	7,909	7,831	7,891	1	%	(1	%)
Through network train speed (miles per hour) (4)	18.8	18.9	19.8	(1	%)	(5	%)
Fuel efficiency (US gallons of locomotive fuel consumed per 1,000 GTMs) (5)	0.873	0.876	0.874	—	%	—	%
Through dwell (entire railroad, hours) (6)	7.1	7.0	7.0	(1	%)	—	%
Car velocity (car miles per day) (7)	206	209	213	(1	%)	(2	%)

(1)GTMs: The workload performed by system trains in hauling freight or equipment. GTMs are calculated by multiplying the trailing weight by the distance the train moved. A larger number is an indicator of more traffic (and thus more revenue) being moved.

(2)Train weight: An efficiency measurement on how much tonnage each mainline train handles on average as it crosses the network. Calculated as the total of GTMs and divided by total train miles, this measure provides insight on how well each train was maximized in terms of its capacity to move traffic.

(3)Train length: An efficiency measurement on average trailing length of each mainline train on the network. Calculated as the total of car foot miles (the sum of car length multiplied by miles travelled for each trailing car) divided by total train miles, this measure provides insight on how well each train was maximized in terms of its capacity to move traffic.

(4)Through network train speed: A measure of the line-haul movement from origin to destination, including time at terminals. The average speed is calculated by dividing train miles by total hours operated, excluding yard and local trains, passenger trains, maintenance of way trains, and foreign trains. This measure represents the fluidity of trains on the network, with a higher value also indicating a more fluid network.

(5)Fuel efficiency: This measure represents how efficient the Company is in the generation and utilization of locomotive horsepower in freight train operations, with a lower number indicating improved performance. Fuel efficiency is defined as US gallons of locomotive fuel consumed per 1,000 GTMs.

(6)Through dwell: The average time a car resides within terminal boundaries expressed in hours. The measurement begins with a customer release, received interchange, or train arrival event and ends with a customer placement (actual or constructive), delivered or offered in interchange, or train departure event. This excludes stored, bad ordered, maintenance of way cars, or cars with dwell greater than ten days. This measure represents the efficiency of handling cars within the terminal, with a lower value indicating higher performance.

(7)Car velocity: The average miles per day traveled by loaded and empty cars (including all active cars whether private, foreign or CN owned) on company lines. This measure represents the fluidity of cars on the network, calculated by the sum of miles each car traveled divided by the sum of all of the cars’ active time, with a higher value indicating a smoother and more fluid operation.

The Company's continued focus on its scheduled operating plan, along with fewer network disruptions, drove improvements across many key operating metrics in the last three quarters of 2025. These improvements were tempered by less favorable winter operating conditions in the first quarter of 2025 when compared to the first quarter of 2024. CN’s Winter Operating Plan implements train length restrictions and speed restrictions at temperatures below a certain point, which constrain car velocity and network fluidity.

For the year ended December 31, 2024, when compared to 2023, operating performance, primarily network train speed and car velocity, was negatively impacted in 2024, mainly due to the TCRC and port labor work stoppages and wildfires in Alberta. Additionally, these metrics were further negatively impacted by maintenance in the key Vancouver corridor during the second quarter of 2024 as well as earlier winter operating conditions in the fourth quarter of 2024 when compared to the same period in 2023.

Non-GAAP measures

This MD&A makes reference to non-GAAP measures, including adjusted performance measures, constant currency, return on invested capital (ROIC) and adjusted ROIC, free cash flow and adjusted debt-to-adjusted EBITDA multiple that do not have any standardized meaning prescribed by GAAP and therefore, may not be comparable to similar measures presented by other companies. From management's perspective, these non-GAAP measures are useful measures of performance and provide investors with supplementary information to assess the Company's results of operations and liquidity. These non-GAAP measures should not be considered in isolation or as a substitute for financial measures prepared in accordance with GAAP.

16 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

For further details of these non-GAAP measures, including a reconciliation to the most directly comparable GAAP financial measures, refer to the sections of this MD&A entitled Non-GAAP measures: Adjusted performance measures, ROIC and adjusted ROIC and Constant currency, as well as the section entitled Liquidity and capital resources: Free cash flow and Adjusted debt-to-adjusted EBITDA multiple.

Adjusted performance measures

Adjusted net income, adjusted diluted earnings per share, adjusted operating income, adjusted operating expenses and adjusted operating ratio are non-GAAP measures that are used to set performance goals and to measure CN's performance and may include the following adjustments:

i.operating expense adjustments: workforce reduction program, advisory costs related to rail consolidation matters, depreciation expense on the deployment of a replacement system, advisory fees related to shareholder matters, losses and recoveries from assets held for sale, business acquisition-related costs;

ii.non-operating expense adjustments: business acquisition-related financing fees, merger termination income, gains and losses on disposal of property; and

iii.the effect of changes in tax laws including rate enactments and changes in tax positions affecting prior years.

These non-GAAP measures do not have any standardized meaning prescribed by GAAP and therefore, may not be comparable to similar measures presented by other companies.

For the year ended December 31, 2025, the Company's adjusted net income was $4,756 million, or $7.63 per diluted share, which excludes:

•employee termination benefits and severance costs related to a workforce reduction program of $34 million, or $25 million after-tax ($0.04 per diluted share) recorded in the fourth quarter in Labor and fringe benefits within the Consolidated Statement of Income; and

•advisory costs related to analysis and advocacy for STB enforcement of antitrust laws pertaining to the potential merger between Union Pacific and Norfolk Southern of $15 million, or $11 million after-tax ($0.02 per diluted share) recorded in the fourth quarter in Purchased services and materials within the Consolidated Statements of Income.

For the year ended December 31, 2024, the Company's adjusted net income was $4,506 million, or $7.10 per diluted share, which excludes a loss on assets held for sale of $78 million, or $58 million after-tax ($0.09 per diluted share), recorded in the second quarter, resulting from an agreement to transfer the ownership and related risks and obligations of the Quebec Bridge located in Quebec, Canada, to the Government of Canada. See Note 5 - Assets held for sale to the Company's 2025 Annual Consolidated Financial Statements for additional information.

For the year ended December 31, 2023, the Company's adjusted net income was $4,800 million, or $7.28 per diluted share, which excludes:

•a gain on disposal of property within the Bala Subdivision located in Markham and Richmond Hill, Ontario, Canada of $129 million, or $112 million after-tax ($0.17 per diluted share) recorded in the fourth quarter in Other income within the Consolidated Statements of Income; and

•a net deferred income tax recovery of $713 million ($1.08 per diluted share) recorded in the fourth quarter resulting from tax filings consistent with a ruling that the Company received in a non-U.S. foreign jurisdiction in connection with prior taxation years.

Adjusted net income is defined as Net income in accordance with GAAP adjusted for certain significant items. Management believes that adjusted net income provides additional insight to management and investors into the Company's operations and underlying business trends as well as facilitate period-to-period comparisons, as it excludes certain significant items that are not reflective of CN's underlying business operations and could distort the analysis of trends in business performance. Adjusted diluted earnings per share is defined as adjusted net income divided by the weighted-average diluted shares outstanding. This measure helps management and investors evaluate the Company's profitability on a per-share basis, facilitating the assessment of period-over-period performance by removing the impact of significant, non-recurring items.

CN | 2025 Annual Report 17

MANAGEMENT'S DISCUSSION AND ANALYSIS

The following table provides a reconciliation of Net income and Earnings per share in accordance with GAAP, as reported for the years ended December 31, 2025, 2024 and 2023, to the non-GAAP adjusted performance measures presented herein:


In millions, except per share data	Year ended December 31,	2025		2024		2023
Net income		$	4,720	$	4,448	$	5,625
Adjustments:
Operating expense adjustments:
Workforce reduction program		34		—		—


Advisory costs related to rail consolidation matters		15		—		—
Loss on assets held for sale		—		78		—

Non-operating expense adjustments:


Gain on disposal of property		—		—		(129)
Tax adjustments:
Tax effect of adjustments (1)		(13)		(20)		17
Tax-deductible goodwill and related impacts (2)		—		—		(713)

Total adjustments		$	36	$	58	$	(825)
Adjusted net income		$	4,756	$	4,506	$	4,800



Diluted earnings per share		$	7.57	$	7.01	$	8.53
Impact of adjustments, per share		0.06		0.09		(1.25)
Adjusted diluted earnings per share		$	7.63	$	7.10	$	7.28

(1)The tax impact of adjustments is based on the nature of the item for tax purposes and related tax rates in the applicable jurisdiction.

(2)Relates to the impacts resulting from tax filings consistent with a ruling that the Company received in a non-U.S. foreign jurisdiction in connection with prior taxation years.

Adjusted operating income is defined as Operating income in accordance with GAAP adjusted for certain significant operating expense items that are not reflective of CN's underlying business operations. This measure helps management and investors assess the Company's core operating results by excluding items that may distort the analysis of ongoing business performance. Adjusted operating expenses is defined as Operating expenses in accordance with GAAP adjusted for certain significant operating expense items that are not reflective of CN's underlying business operations. This measure provides management and investors with a view of ongoing costs which exclude unusual or non-recurring items, enabling more accurate assessment of cost management and resource allocation across reporting periods. Adjusted operating ratio is defined as adjusted operating expenses as a percentage of revenues. For management and investors, the adjusted operating ratio serves as a key performance indicator of cost management and overall operational effectiveness, as it demonstrates how effectively management controls costs relative to total revenue by excluding unusual or non-recurring items.

The following table provides a reconciliation of Operating income, Operating expenses and operating ratio, as reported for the years ended December 31, 2025, 2024 and 2023, to the non-GAAP adjusted performance measures presented herein:


In millions, except percentages	Year ended December 31,	2025			2024			2023
Operating income		$	6,587		$	6,247		$	6,597
Adjustments:


Workforce reduction program		34			—			—
Advisory costs related to rail consolidation matters		15			—			—
Loss on assets held for sale		—			78			—

Total adjustments		$	49		$	78		$	—
Adjusted operating income		$	6,636		$	6,325		$	6,597

Operating expenses		$	10,717		$	10,799		$	10,231
Total adjustments		(49)			(78)			—
Adjusted operating expenses		$	10,668		$	10,721		$	10,231

Operating ratio		61.9		%	63.4		%	60.8		%
Impact of adjustments		(0.2)		%	(0.5)		%	—		%
Adjusted operating ratio		61.7		%	62.9		%	60.8		%

18 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

ROIC and adjusted ROIC

ROIC and adjusted ROIC are useful measures for management and investors to evaluate the efficiency of the Company's use of capital funds and allow investors to assess the operating and investment decisions made by management. The Company calculates ROIC as return divided by average invested capital, both of which are non-GAAP measures. Return is defined as Net income plus interest expense after-tax, calculated using the Company's effective tax rate. Average invested capital is defined as the sum of Total shareholders' equity, Long-term debt and Current portion of long-term debt less Cash and cash equivalents, and Restricted cash and cash equivalents, averaged between the beginning and ending balance over the last twelve-month period. The Company calculates adjusted ROIC as adjusted return divided by average invested capital, both of which are non-GAAP measures. Adjusted return is defined as adjusted net income plus interest expense after-tax, calculated using the Company's adjusted effective tax rate. Return, average invested capital, ROIC, adjusted return and adjusted ROIC do not have any standardized meaning prescribed by GAAP and therefore, may not be comparable to similar measures presented by other companies.

The following table provides a reconciliation of Net income and adjusted net income to return and adjusted return, respectively, as well as the calculation of average invested capital, which have been used to calculate ROIC and adjusted ROIC:


In millions, except percentage	As at and for the year ended December 31,	2025			2024			2023
Net income		$	4,720		$	4,448		$	5,625
Interest expense		913			891			722
Tax on interest expense (1)		(225)			(214)			(177)
Return		$	5,408		$	5,125		$	6,170
Average total shareholders' equity		$	21,310		$	20,584		$	20,751
Average long-term debt		20,014			17,931			15,253
Average current portion of long-term debt		1,036			1,753			1,699
Less: Average cash, cash equivalents, restricted cash and restricted cash equivalents		(382)			(663)			(879)
Average invested capital		$	41,978		$	39,605		$	36,824
ROIC		12.9		%	12.9		%	16.8		%
Adjusted net income (2)		$	4,756		$	4,506		$	4,800
Interest expense		913			891			722

Adjusted tax on interest expense (3)		(226)			(214)			(177)
Adjusted return		$	5,443		$	5,183		$	5,345
Average invested capital		$	41,978		$	39,605		$	36,824
Adjusted ROIC		13.0		%	13.1		%	14.5		%

(1)The effective tax rate, defined as Income tax expense as a percentage of Income before income taxes, used to calculate the tax on Interest expense for 2025 and 2024 was 24.6% and 24.0%, respectively. Due to the significantly lower effective tax rate of 13.3% reported by the Company in 2023, tax on interest expense for 2023 was calculated using an adjusted effective tax rate of 24.5%.

(2)This non-GAAP measure does not have any standardized meaning prescribed by GAAP and therefore, may not be comparable to similar measures presented by other companies. See the section of this MD&A entitled Non-GAAP measures – Adjusted performance measures for an explanation of this non-GAAP measure.

(3)The adjusted effective tax rate is a non-GAAP measure, defined as Income tax expense, net of tax adjustments as presented in Adjusted performance measures as a percentage of Income before taxes, net of pre-tax adjustments as presented in Adjusted performance measures. This measure does not have any standardized meaning prescribed by GAAP and therefore, may not be comparable to a similar measure presented by other companies. The adjusted effective tax rate used to calculate the adjusted tax on interest expense for 2025 was 24.7% (2024 - 24.0%; 2023 - 24.5%).

CN | 2025 Annual Report 19

MANAGEMENT'S DISCUSSION AND ANALYSIS

Constant currency

Financial results at constant currency allow results to be viewed without the impact of fluctuations in foreign currency exchange rates, thereby facilitating period-to-period comparisons in the analysis of trends in business performance. Measures at constant currency are considered non-GAAP measures and do not have any standardized meaning prescribed by GAAP and therefore, may not be comparable to similar measures presented by other companies. Financial results at constant currency are obtained by translating the current period results denominated in US dollars at the weighted average foreign exchange rates used to translate transactions denominated in US dollars of the comparable period of the prior year.

The average foreign exchange rates were $1.398 and $1.370 per US$1.00, for the years ended December 31, 2025 and 2024, respectively. On a constant currency basis, the Company's Net income for the year ended December 31, 2025 would have been lower by $49 million ($0.08 per diluted share).

The following table provides a reconciliation of the impact of constant currency and related percentage change at constant currency on the financial results, as reported for the year ended December 31, 2025:


In millions, except per share data	Year ended December 31,	2025		Constant currency impact		2024		% Change at constant currency Fav (Unfav)
Revenues
Petroleum and chemicals		$	3,478	$	(43)	$	3,414	1	%
Metals and minerals		1,962		(33)		2,048		(6	%)
Forest products		1,839		(31)		1,931		(6	%)
Coal		960		(7)		929		3	%
Grain and fertilizers		3,658		(36)		3,422		6	%
Intermodal		3,892		(18)		3,757		3	%
Automotive		892		(14)		894		(2	%)
Total freight revenues		16,681		(182)		16,395		1	%
Other revenues		623		(6)		651		(5	%)
Total revenues		17,304		(188)		17,046		—	%
Operating expenses
Labor and fringe benefits		3,510		(27)		3,422		(2	%)
Purchased services and material		2,306		(10)		2,313		1	%
Fuel		1,786		(39)		2,060		15	%
Depreciation and amortization		1,938		(17)		1,892		(2	%)
Equipment rents		432		(7)		392		(8	%)
Other		745		(10)		642		(14	%)
Loss on assets held for sale		—		—		78		100	%

Total operating expenses		10,717		(110)		10,799		2	%
Operating income		6,587		(78)		6,247		4	%
Interest expense		(913)		14		(891)		(1	%)
Other components of net periodic benefit income		502		—		454		11	%

Other income		88		(1)		42		107	%
Income before income taxes		6,264		(65)		5,852		6	%
Income tax expense		(1,544)		16		(1,404)		(9	%)
Net income		$	4,720	$	(49)	$	4,448	5	%
Diluted earnings per share		$	7.57	$	(0.08)	$	7.01	7	%

20 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

Revenues


In millions, unless otherwise indicated	Year ended December 31,	2025		2024		% Change		% Change at constant currency (1)
Freight revenues		$	16,681	$	16,395	2	%	1	%
Other revenues		623		651		(4	%)	(5	%)
Total revenues		$	17,304	$	17,046	2	%	—	%
Freight revenues
Petroleum and chemicals		$	3,478	$	3,414	2	%	1	%
Metals and minerals		1,962		2,048		(4	%)	(6	%)
Forest products		1,839		1,931		(5	%)	(6	%)
Coal		960		929		3	%	3	%
Grain and fertilizers		3,658		3,422		7	%	6	%
Intermodal		3,892		3,757		4	%	3	%
Automotive		892		894		—	%	(2	%)
Total freight revenues		$	16,681	$	16,395	2	%	1	%

Revenue ton miles (RTMs) (millions) (2)		238,159		235,538		1	%	1	%
Freight revenue/RTM (cents) (3)		7.00		6.96		1	%	—	%
Carloads (thousands)		5,458		5,390		1	%	1	%
Freight revenue/carload ($)		3,056		3,042		—	%	(1	%)

(1)This non-GAAP measure does not have any standardized meaning prescribed by GAAP and therefore, may not be comparable to similar measures presented by other companies. See the section of this MD&A entitled Non-GAAP measures – Constant currency for an explanation of this non-GAAP measure.

(2)RTMs is a measure of volumes and is calculated by multiplying the weight in tons of the shipment lading being transported by the number of miles that the shipment is transported on company lines. CN uses RTMs as the primary measure of volumes as compared to Carloads, since RTMs also takes into account the length of haul and weight in the movement.

(3)Freight revenue per RTM is an indicator of yield and represents revenue earned for transporting one ton of freight over a distance of one mile.

CN | 2025 Annual Report 21

MANAGEMENT'S DISCUSSION AND ANALYSIS

Fuel and carbon surcharge revenues decreased by $327 million in 2025 when compared to 2024, mainly due to lower applicable fuel surcharge rates and the April 1, 2025 elimination of the Canadian federal carbon tax program.

Petroleum and chemicals


	Year ended December 31,	2025		2024		% Change		% Change at constant currency
Revenues (millions)		$	3,478	$	3,414	2	%	1	%
RTMs (millions)		46,626		46,530		—	%	—	%
Revenue/RTM (cents)		7.46		7.34		2	%	—	%
Carloads (thousands)		646		648		—	%	—	%
Revenue/carload ($)		5,384		5,269		2	%	1	%

The petroleum and chemicals commodity group comprises a wide range of commodities, including chemicals and plastics, refined petroleum products, natural gas liquids, crude oil and sulfur. The primary markets for these commodities are within North America, and as such, the performance of this commodity group is closely correlated with the North American economy as well as oil and gas production, petroleum refining activity, pipeline capacities and related petrochemical commodity prices. Most of the Company's petroleum and chemicals shipments originate in the Alberta Industrial Heartland, a key oil and gas development area and a major center for natural gas feedstock and world-scale petrochemicals and plastics. In addition to servicing the Louisiana petrochemical corridor between New Orleans and Baton Rouge as well as the Sarnia-Lambton Petrochemical and Refining Complex in Southwestern Ontario, the Company also supplements pipeline capacity by moving petroleum products from facilities in Saskatchewan, British Columbia, Quebec, and Illinois.

Revenues for this commodity group increased by $64 million, or 2%, for the year ended December 31, 2025 when compared to 2024, mainly due to higher revenue per RTM while volumes remained flat:

•Volumes: remained flat due to higher exports of natural gas liquids and sulfur and higher shipments of plastics; offset by lower domestic volumes of refined petroleum products driven by production disruptions and extended turnarounds at customer facilities.

•Revenue per RTM: increased mainly due to freight rate increases and the positive translation impact of a weaker Canadian dollar; partly offset by lower applicable fuel surcharge rates and the impact of the April 1, 2025 elimination of the Canadian federal carbon tax program.


Percentage of commodity group revenues	2025		2024
Refined petroleum products	49	%	50	%
Chemicals and plastics	38	%	38	%
Crude and condensate	8	%	7	%
Sulfur	5	%	5	%

Metals and minerals


	Year ended December 31,	2025		2024		% Change		% Change at constant currency
Revenues (millions)		$	1,962	$	2,048	(4	%)	(6	%)
RTMs (millions)		27,073		28,829		(6	%)	(6	%)
Revenue/RTM (cents)		7.25		7.10		2	%	—	%
Carloads (thousands)		900		974		(8	%)	(8	%)
Revenue/carload ($)		2,180		2,103		4	%	2	%

The metals and minerals commodity group consists primarily of materials related to oil and gas development such as frac sand, drilling pipe and large diameter pipe, steel, iron ore, non-ferrous base metals and ores, raw materials including scrap metal, industrial materials including aggregates, construction materials such as roofing and railway equipment, machinery and dimensional (large) loads. The Company provides unique rail access to base metals, iron ore and frac sand mining as well as aluminum and steel producing regions, which are among the most important in North America. This strong origin franchise, coupled with the Company's access to port facilities and the end markets for these commodities, has made CN a leader in the transportation of metals and minerals products.

22 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

Revenues for this commodity group decreased by $86 million, or 4%, for the year ended December 31, 2025 when compared to 2024, mainly due to lower volumes; partly offset by higher revenue per RTM:

•Volumes: decreased mainly due to weaker market fundamentals for frac sand driven by lower levels of natural gas drilling projects in western Canada as well as weaker market fundamentals for iron ore including the shutdown of a mine in the second quarter of 2025. Aluminum volumes were also negatively impacted as a result of U.S. tariffs; partly offset by new business and shifts in other metal segments.

•Revenue per RTM: increased mainly due to freight rate increases and the positive translation impact of a weaker Canadian dollar; partly offset by lower applicable fuel surcharge rates, the impact of the April 1, 2025 elimination of the Canadian federal carbon tax program and an increase in the average length of haul.


Percentage of commodity group revenues	2025		2024
Energy materials	28	%	28	%
Metals	28	%	27	%
Minerals	27	%	25	%
Iron ore	17	%	20	%

Forest products


	Year ended December 31,	2025		2024		% Change		% Change at constant currency
Revenues (millions)		$	1,839	$	1,931	(5	%)	(6	%)
RTMs (millions)		20,472		22,111		(7	%)	(7	%)
Revenue/RTM (cents)		8.98		8.73		3	%	1	%
Carloads (thousands)		278		299		(7	%)	(7	%)
Revenue/carload ($)		6,615		6,458		2	%	1	%

The forest products commodity group includes various types of lumber, panels, paper, board, wood pulp and other fibers such as logs, recycled paper, wood chips, and wood pellets. The Company has extensive rail access to the western and eastern Canadian fiber-producing regions, which are among the largest fiber source areas in North America. In the U.S., the Company is strategically located to serve both the Midwest and southern U.S. corridors with efficient interline connections to other railroads and a strong network of transloads extending our reach into our customers’ target markets.

Revenues for this commodity group decreased by $92 million, or 5% for the year ended December 31, 2025, when compared to 2024, mainly due to lower volumes; partly offset by higher revenue per RTM:

•Volumes: decreased mainly due to lower shipments of lumber and woodpulp from ongoing unfavorable market conditions including the impact of higher U.S. anti-dumping and countervailing duties on Canadian lumber.


Percentage of commodity group revenues	2025		2024
Lumber	34	%	35	%
Pulp	29	%	29	%
Paper	19	%	18	%
Panels	18	%	18	%

CN | 2025 Annual Report 23

MANAGEMENT'S DISCUSSION AND ANALYSIS

Coal


	Year ended December 31,	2025		2024		% Change		% Change at constant currency
Revenues (millions)		$	960	$	929	3	%	3	%
RTMs (millions)		20,777		20,165		3	%	3	%
Revenue/RTM (cents)		4.62		4.61		—	%	—	%
Carloads (thousands)		472		456		4	%	4	%
Revenue/carload ($)		2,034		2,037		—	%	(1	%)

The coal commodity group consists of metallurgical coal, thermal grades of bituminous coal, petroleum coke and metallurgical coke. Canadian metallurgical and thermal coal are largely exported via terminals on the west coast of Canada to offshore markets. In the U.S., thermal coal is transported from mines served in southern Illinois, or from western U.S. mines via interchange with other railroads, to major utilities in the Midwest and Southeast U.S., as well as offshore markets via terminals on the U.S. Gulf Coast and inland river system. Petroleum coke, a by-product of the oil refining process, is exported to offshore markets via terminals on the west coast of Canada, the U.S. Gulf Coast and inland river system, as well as shipped to industrial users in domestic markets.

Revenues for this commodity group increased by $31 million, or 3% for the year ended December 31, 2025, when compared to 2024, mainly due to higher volumes while revenue per RTM remained flat:

•Volumes: increased mainly due to higher exports of Canadian metallurgical coal; partly offset by lower exports of Canadian thermal coal.

•Revenue per RTMs: remained flat mainly due to freight rate increases and the positive translation impact of a weaker Canadian dollar; offset by lower applicable fuel surcharge rates and the impact of the April 1, 2025 elimination of the Canadian federal carbon tax program.


Percentage of commodity group revenues	2025		2024
Canadian coal - export	54	%	52	%
Petroleum coke	23	%	23	%
U.S. coal - export	12	%	13	%
U.S. coal - domestic	11	%	12	%

Grain and fertilizers


	Year ended December 31,	2025		2024		% Change		% Change at constant currency
Revenues (millions)		$	3,658	$	3,422	7	%	6	%
RTMs (millions)		67,773		64,594		5	%	5	%
Revenue/RTM (cents)		5.40		5.30		2	%	1	%
Carloads (thousands)		720		690		4	%	4	%
Revenue/carload ($)		5,081		4,959		2	%	1	%

The grain and fertilizers commodity group depends primarily on crops grown and fertilizers processed in Western Canada and the U.S. Midwest. The grain segment consists of wheat, oats, barley, flaxseed, rye, peas, lentils, corn, corn meal, ethanol, dried distillers grain, canola seed and processed canola products, soybeans and processed soybean products, sweeteners and animal fat. Production of grain varies considerably from year to year, affected primarily by weather conditions, seeded and harvested acreage, the mix of grains produced and crop yields. Grain exports are sensitive to the size and quality of the crop produced, international market conditions and foreign government policy. The majority of grain produced in Western Canada and moved by CN is exported via the ports of Vancouver, Prince Rupert and Thunder Bay. These rail movements are subject to government regulation that establishes a maximum revenue entitlement that railways can earn. Although railway companies are free to set freight rates for western grain shipments, total revenue is limited based on a formula that takes into account tonnage, length of haul, and a specified price index. Shipments of grain that are exported to the U.S. are not regulated. Grain grown in the U.S. Midwest is exported as well as transported to domestic processing facilities and feed markets. The Company also serves major producers of potash in Canada, as well as producers of ammonium nitrate, anhydrous ammonia, urea and other fertilizers across Canada and the U.S. and CN delivers the product for North American and export demand. CN also transports imported product to key markets in North America.

24 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

Revenues for this commodity group increased by $236 million, or 7% for the year ended December 31, 2025, when compared to 2024, mainly due to higher volumes and higher revenue per RTM:

•Volumes: increased mainly due to higher U.S. and Canadian grain for offshore export.

•Revenue per RTM: increased mainly due to freight rate increases and the positive translation impact of a weaker Canadian dollar; partly offset by the impact of the April 1, 2025 elimination of the Canadian federal carbon tax program and lower applicable fuel surcharge rates.


Percentage of commodity group revenues	2025		2024
Canadian grain - regulated	42	%	42	%
U.S. grain - domestic	18	%	17	%
Canadian grain - commercial	13	%	12	%
Fertilizers - potash	12	%	13	%
Fertilizers - other	8	%	9	%
U.S. grain - exports	7	%	7	%

Intermodal


	Year ended December 31,	2025		2024		% Change		% Change at constant currency
Revenues (millions)		$	3,892	$	3,757	4	%	3	%
RTMs (millions)		52,249		50,190		4	%	4	%
Revenue/RTM (cents)		7.45		7.49		(1	%)	(1	%)
Carloads (thousands)		2,234		2,115		6	%	6	%
Revenue/carload ($)		1,742		1,776		(2	%)	(2	%)

The intermodal commodity group includes rail and trucking services and is comprised of two markets: domestic intermodal and international intermodal. Domestic intermodal transports consumer products and manufactured goods, serving retail, wholesale and logistics provider channels, within domestic Canada, domestic U.S., Mexico and transborder, while international intermodal handles import and export container traffic, serving the major ports of Vancouver, Prince Rupert, Montreal, Halifax, Saint John, New Orleans and Mobile. CN's network of inland intermodal terminals, located near ports and large urban centers, and a number of interline partnerships with other Class I railroads, connects customers to major markets in North America and overseas. Revenues for CN owned trucking businesses, including TransX, are included in this commodity group within the domestic market.

Revenues for this commodity group increased by $135 million, or 4% for the year ended December 31, 2025, when compared to 2024, mainly due to higher volumes; partly offset by lower revenues per RTM:

•Volumes: increased mainly due to higher shipments in the domestic segment and higher international shipments through the West Coast Ports of Prince Rupert and Vancouver and the Port of Montreal. The increase also reflects the impact of the TCRC-related labor uncertainty and work stoppage in the third quarter of 2024 and West Coast port related labor disruptions in the fourth quarter of 2024.

•Revenue per RTM: decreased mainly due to lower applicable fuel surcharge rates and the impact of the April 1, 2025 elimination of the Canadian federal carbon tax program; partly offset by freight rate increases and the positive translation impact of a weaker Canadian dollar.


Percentage of commodity group revenues	2025		2024
International	63	%	64	%
Domestic	37	%	36	%

CN | 2025 Annual Report 25

MANAGEMENT'S DISCUSSION AND ANALYSIS

Automotive


	Year ended December 31,	2025		2024		% Change		% Change at constant currency
Revenues (millions)		$	892	$	894	—	%	(2	%)
RTMs (millions)		3,189		3,119		2	%	2	%
Revenue/RTM (cents)		27.97		28.66		(2	%)	(4	%)
Carloads (thousands)		208		208		—	%	—	%
Revenue/carload ($)		4,288		4,298		—	%	(2	%)

The automotive commodity group moves both domestic finished vehicles and parts throughout North America, providing service to certain vehicle assembly plants in Ontario, Michigan and Mississippi. The Company also serves vehicle distribution facilities in Canada and the U.S., as well as parts production facilities in Michigan and Ontario. The Company serves shippers of finished vehicle imports via the ports of Halifax and Vancouver, and through interchange with other railroads for vehicles produced outside CN’s directly served network, including in Mexico. CN's broad network of auto compounds is used to facilitate distribution of vehicles throughout Canada and the U.S.

Revenues for this commodity group for the year ended December 31, 2025 were in line with the same period in 2024, mainly due to higher volumes; partly offset by lower revenue per RTM:

•Volumes: increased mainly due to higher longer haul shipments of finished vehicles from Mexico into Canada and higher shipments within the U.S. and Canada; partly offset by lower transborder shipments of finished vehicles between Canada and the U.S.


Percentage of commodity group revenues	2025		2024
Finished vehicles	94	%	93	%
Auto parts	6	%	7	%

Other revenues


	Year ended December 31,	2025		2024		% Change		% Change at constant currency
Revenues (millions)		$	623	$	651	(4	%)	(5	%)

Other revenues are derived from non-rail logistics services that support the Company's rail business including vessels and docks, transloading and distribution, automotive logistics, and freight forwarding and transportation management.

Other revenues decreased by $28 million, or 4% for the year ended December 31, 2025, when compared to 2024, mainly due to lower vessel revenues from the iron ore supply chain; partly offset by increased automotive logistics revenues and increased distribution services.


Percentage of other revenues	2025		2024
Vessels and docks	51	%	56	%
Other non-rail services	41	%	36	%
Other revenues	8	%	8	%

26 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

Operating expenses

Operating expenses for the year ended December 31, 2025, amounted to $10,717 million compared to $10,799 million in 2024. The decrease of $82 million, or 1%, was mainly due to the impact of the April 1, 2025 elimination of the Canadian federal carbon tax program, lower fuel prices, lower average headcount and the loss on assets held for sale recorded in the second quarter of 2024; partly offset by the negative translation impact of a weaker Canadian dollar and general wage increases.


In millions	Year ended December 31,	2025		2024		% Change		% Change at constant currency (1)
Labor and fringe benefits		$	3,510	$	3,422	(3	%)	(2	%)
Purchased services and material		2,306		2,313		—	%	1	%
Fuel		1,786		2,060		13	%	15	%
Depreciation and amortization		1,938		1,892		(2	%)	(2	%)
Equipment rents		432		392		(10	%)	(8	%)
Other		745		642		(16	%)	(14	%)
Loss on assets held for sale		—		78		100	%	100	%


Total operating expenses		$	10,717	$	10,799	1	%	2	%

Labor and fringe benefits

Labor and fringe benefits expense includes wages, payroll taxes and employee benefits such as incentive compensation, including stock-based compensation, health and welfare, current service cost for pensions and postretirement benefits. Certain incentive compensation plans are based mainly on financial performance targets and the related expense is recorded in relation to the attainment of such targets.

Labor and fringe benefits expense increased by $88 million, or 3%, in 2025 when compared to 2024. The increase was mainly due to general wage increases, higher incentive compensation expense, employee termination benefits and severance costs of $34 million related to a workforce reduction program in the fourth quarter of 2025 and the negative translation impact of a weaker Canadian dollar; partly offset by lower average headcount.

Purchased services and material

Purchased services and material expense includes the cost of services purchased from outside contractors including freight forwarding expense; materials used in the maintenance of the Company's track, facilities and equipment; transportation and lodging for train crew employees; utility costs; and the net costs of operating facilities jointly used by the Company and other railroads.

CN | 2025 Annual Report 27

MANAGEMENT'S DISCUSSION AND ANALYSIS

Purchased services and material expense remained flat when compared to 2024, mainly due to lower contracted services, offset by higher freight forwarding expense, higher material costs and advisory costs of $15 million related to rail consolidation matters.

Fuel

Fuel expense includes fuel consumed by assets, including locomotives, vessels, vehicles and other equipment as well as federal, provincial and state fuel taxes.

Fuel expense decreased by $274 million, or 13%, in 2025 when compared to 2024. The decrease was mainly due to the impact of the April 1, 2025 elimination of the Canadian federal carbon tax program and lower fuel prices; partly offset by the negative translation impact of a weaker Canadian dollar and higher volumes.

Depreciation and amortization

Depreciation and amortization expense includes the costs associated with the use of properties and intangible assets over their estimated service lives. Depreciation expense is affected by capital additions, railroad property retirements from disposal, sale and/or abandonment and other adjustments including asset impairments.

Depreciation and amortization expense increased by $46 million, or 2%, in 2025 when compared to 2024. The increase was mainly due to a higher depreciable asset base and the negative translation impact of a weaker Canadian dollar; partly offset by the impact of certain assets recognized through purchase price allocations from prior business acquisitions having become fully depreciated during 2025.

Equipment rents

Equipment rents expense includes rental expense for the use of freight cars owned by other railroads (car hire) or private companies and for the lease of freight cars, locomotives and intermodal equipment, net of rental income from other railroads for the use of the Company's freight cars (car hire) and locomotives.

Equipment rents expense increased by $40 million, or 10%, in 2025 when compared to 2024. The increase was mainly due to higher car hire expense primarily driven by higher intermodal volumes and the negative translation impact of a weaker Canadian dollar.

Other

Other expense includes operating taxes; software, support and cloud computing costs; insurance; environmental; freight and property damage; personal injury claims; travel expenses; advisory fees related to shareholder matters; bad debt; as well as other general expenses.

Other expense increased by $103 million, or 16%, in 2025 when compared to 2024. The increase was mainly due to higher software and support costs, higher incident costs and higher legal provisions including $34 million related to a court ruling in the fourth quarter of 2025 pertaining to a legal matter.

Loss on assets held for sale

Loss on assets held for sale of $78 million was recorded in the second quarter of 2024, resulting from the Company entering into an agreement to transfer the ownership and related risks and obligations of the Quebec Bridge located in Quebec, Canada to the Government of Canada for a nominal amount. See Note 5 - Assets held for sale to the Company's 2025 Annual Consolidated Financial Statements for additional information.

Other income and expenses

Interest expense

In 2025, Interest expense was $913 million compared to $891 million in 2024. The increase of $22 million in 2025 was mainly due to the higher average level of debt.

Other components of net periodic benefit income

In 2025, Other components of net periodic benefit income was $502 million compared to $454 million in 2024. The increase was mainly due to lower interest cost which primarily resulted from changes to discount rates determined at December 31, 2024.

28 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

Other income

In 2025, Other income was $88 million compared to $42 million in 2024. The increase of $46 million was mainly due to a gain on disposal of land in the fourth quarter and the fair value remeasurement of CN’s investment in IANR as a result of CN acquiring control on March 1, 2025.

Income tax expense

In 2025, the Company recorded an income tax expense of $1,544 million compared to an income tax expense of $1,404 million in 2024.

The effective tax rate for 2025 was 24.6% compared to 24.0% in 2024 and the adjusted effective tax rate for 2025 was 24.7%.(1) The increase in the effective tax rate was mainly attributable to the impact of lower excess tax benefits resulting from the settlement of equity settled awards under the Company's stock based compensation plans in 2025.

On January 15, 2025, the Economic Co-operation and Development (OECD) issued new administrative guidance related to its 2023 global minimum corporate tax Pillar Two measures affecting various items including the treatment of deferred income tax assets. This new guidance is effective in 2025 and is expected to be enacted in a number of OECD member countries, which include the main jurisdictions in which CN operates (other than the U.S.). The Company currently does not expect this new guidance to impact its effective tax rate and income tax payments and will continue to monitor developments.

On July 4, 2025, the President of the United States signed into law the One Big Beautiful Bill Act (“the Bill”). The Bill addresses numerous spending policies and also makes several adjustments to current tax law, including an increase to the base erosion and anti-abuse tax rate starting in 2026, permanently restoring the ability for immediate deduction of new investments in certain qualified depreciable assets made after January 19, 2025, and providing a higher deduction limitation for net interest expense starting in 2025. The enacted changes in tax laws do not affect the Company’s effective tax rate and have no material impact to its income tax payments.

For 2026, the Company anticipates the estimated annual effective tax rate to be in the range of 25.0% to 26.0%.

(1) Adjusted effective tax rate is a non-GAAP measure, defined as Income tax expense, net of tax adjustments as presented in Adjusted performance measures as a percentage of Income before taxes, net of pre-tax adjustments as presented in Adjusted performance measures. This measure does not have any standard meaning prescribed by GAAP and therefore, may not be comparable to a similar measure presented by other companies.

2024 Results of operations

Revenues for the year ended December 31, 2024 were $17,046 million compared to $16,828 million in 2023, an increase of $218 million, or 1%. The increase was mainly due to higher volumes while freight revenue per RTM remained flat:

•Volumes: increased mainly due to higher shipments of Canadian grain exports, international intermodal, refined petroleum products and frac sand; partly offset by lower shipments of potash and Canadian coal. Volumes, primarily related to intermodal, were also negatively impacted by diversions to other modes of transportation and ports due to the TCRC-related labor uncertainty and work stoppage.

•Freight revenue per RTM: remained flat mainly due to freight rate increases and the positive translation impact of a weaker Canadian dollar; offset by lower applicable fuel surcharge rates and an increase in the average length of haul.

Operating expenses for the year ended December 31, 2024 were $10,799 million compared to $10,231 million in 2023. The increase of $568 million, or 6%, was mainly due to higher labor and fringe benefits expense, the negative translation impact of a weaker Canadian dollar, the recognition of a loss on assets held for sale and higher costs driven by earlier winter operating conditions in the Western region in the fourth quarter of 2024; partly offset by lower fuel expense.

Operating income for the year ended December 31, 2024 decreased by $350 million, or 5%, to $6,247 million, when compared to the same period in 2023. The operating ratio was 63.4% in 2024, compared to 60.8% in 2023, a 2.6 point increase.

Net income for the year ended December 31, 2024 was $4,448 million, a decrease of $1,177 million, or 21%, when compared to 2023, and diluted earnings per share decreased by 18% to $7.01. The decrease was mainly due to a net deferred income tax recovery of $713 million recorded in the fourth quarter of 2023 resulting from tax filings consistent with a ruling that the Company received in a non-U.S. foreign jurisdiction in connection with prior taxation years and a gain on disposal of property within the Bala Subdivision located in Markham and Richmond Hill, Ontario, Canada of $129 million recorded in the fourth quarter of 2023. The decrease was also due to lower operating income,

CN | 2025 Annual Report 29

MANAGEMENT'S DISCUSSION AND ANALYSIS

including a loss on assets held for sale of $78 million, recorded in the second quarter of 2024, resulting from an agreement to transfer the ownership and related risks and obligations of the Quebec Bridge located in Quebec, Canada, to the Government of Canada.

Constant currency

The average foreign exchange rates were $1.370 and $1.350 per US$1.00, for the years ended December 31, 2024 and 2023, respectively. On a constant currency basis, the Company's Net income for the year ended December 31, 2024 would have been lower by $21 million ($0.03 per diluted share).


In millions, except per share data	Year ended December 31,	2024		Constant currency impact		2023		% Change at constant currency Fav (Unfav)
Revenues
Petroleum and chemicals		$	3,414	$	(28)	$	3,195	6	%
Metals and minerals		2,048		(23)		2,048		(1	%)
Forest products		1,931		(19)		1,943		(2	%)
Coal		929		(4)		1,017		(9	%)
Grain and fertilizers		3,422		(22)		3,265		4	%
Intermodal		3,757		(13)		3,823		(2	%)
Automotive		894		(8)		945		(6	%)
Total freight revenues		16,395		(117)		16,236		—	%
Other revenues		651		(7)		592		9	%
Total revenues		17,046		(124)		16,828		1	%
Operating expenses
Labor and fringe benefits		3,422		(19)		3,150		(8	%)
Purchased services and material		2,313		(16)		2,254		(2	%)
Fuel		2,060		(24)		2,097		3	%
Depreciation and amortization		1,892		(12)		1,817		(3	%)
Equipment rents		392		(6)		359		(8	%)
Other		642		(8)		554		(14	%)
Loss on assets held for sale		78		—		—		—	%

Total operating expenses		10,799		(85)		10,231		(5	%)
Operating income		6,247		(39)		6,597		(6	%)
Interest expense		(891)		10		(722)		(22	%)
Other components of net periodic benefit income		454		—		479		(5	%)

Other income		42		1		134		(68	%)
Income before income taxes		5,852		(28)		6,488		(10	%)
Income tax expense		(1,404)		7		(863)		(62	%)
Net income		$	4,448	$	(21)	$	5,625	(21	%)
Diluted earnings per share		$	7.01	$	(0.03)	$	8.53	(18	%)

30 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

Revenues


In millions, unless otherwise indicated	Year ended December 31,	2024		2023		% Change		% Change at constant currency (1)
Freight revenues		$	16,395	$	16,236	1	%	—	%
Other revenues		651		592		10	%	9	%
Total revenues		$	17,046	$	16,828	1	%	1	%
Freight revenues
Petroleum and chemicals		$	3,414	$	3,195	7	%	6	%
Metals and minerals		2,048		2,048		—	%	(1	%)
Forest products		1,931		1,943		(1	%)	(2	%)
Coal		929		1,017		(9	%)	(9	%)
Grain and fertilizers		3,422		3,265		5	%	4	%
Intermodal		3,757		3,823		(2	%)	(2	%)
Automotive		894		945		(5	%)	(6	%)
Total freight revenues		$	16,395	$	16,236	1	%	—	%

Revenue ton miles (RTMs) (millions)		235,538		232,614		1	%	1	%
Freight revenue/RTM (cents)		6.96		6.98		—	%	(1	%)
Carloads (thousands)		5,390		5,436		(1	%)	(1	%)
Freight revenue/carload ($)		3,042		2,987		2	%	1	%

(1)This non-GAAP measure does not have any standardized meaning prescribed by GAAP and therefore, may not be comparable to similar measures presented by other companies. See the section of this MD&A entitled 2024 Results of operations – Constant currency for an explanation of this non-GAAP measure.

Fuel surcharge revenues decreased by $401 million in 2024 when compared to 2023, mainly due to lower applicable fuel surcharge rates.

Petroleum and chemicals


	Year ended December 31,	2024		2023		% Change		% Change at constant currency
Revenues (millions)		$	3,414	$	3,195	7	%	6	%
RTMs (millions)		46,530		43,846		6	%	6	%
Revenue/RTM (cents)		7.34		7.29		1	%	—	%
Carloads (thousands)		648		634		2	%	2	%
Revenue/carload ($)		5,269		5,039		5	%	4	%

Revenues for this commodity group increased by $219 million, or 7%, for the year ended December 31, 2024 when compared to 2023, mainly due to higher volumes and higher revenue per RTM:

•Volumes: increased mainly due to higher shipments of refined petroleum products driven by stronger domestic volumes of gasoline, diesel and jet fuel and higher exports of natural gas liquids; partly offset by lower shipments of crude oil.

•Revenue per RTM: increased mainly due to freight rate increases and the positive translation impact of a weaker Canadian dollar; partly offset by a significant increase in the average length of haul and lower applicable fuel surcharge rates.

RTMs increased more than Carloads in 2024 when compared to 2023, mainly due to higher long-haul shipments of refined petroleum products and natural gas liquids.

CN | 2025 Annual Report 31

MANAGEMENT'S DISCUSSION AND ANALYSIS

Metals and minerals


	Year ended December 31,	2024		2023		% Change		% Change at constant currency
Revenues (millions)		$	2,048	$	2,048	—	%	(1	%)
RTMs (millions)		28,829		28,444		1	%	1	%
Revenue/RTM (cents)		7.10		7.20		(1	%)	(3	%)
Carloads (thousands)		974		1,002		(3	%)	(3	%)
Revenue/carload ($)		2,103		2,044		3	%	2	%

Revenues for this commodity group for the year ended December 31, 2024 were in line with the same period in 2023, mainly due to higher volumes; offset by lower revenue per RTM:

•Volumes: increased mainly due to higher shipments of frac sand to Western Canada; partly offset by lower shipments of iron ore and steel products.

•Revenue per RTM: decreased mainly due to lower applicable fuel surcharge rates and an increase in the average length of haul; partly offset by freight rate increases and the positive translation impact of a weaker Canadian dollar.

RTMs increased and Carloads decreased in 2024 when compared to 2023, mainly due to higher long-haul shipments of frac sand from the U.S. to Western Canada.

Forest products


	Year ended December 31,	2024		2023		% Change		% Change at constant currency
Revenues (millions)		$	1,931	$	1,943	(1	%)	(2	%)
RTMs (millions)		22,111		23,141		(4	%)	(4	%)
Revenue/RTM (cents)		8.73		8.40		4	%	3	%
Carloads (thousands)		299		309		(3	%)	(3	%)
Revenue/carload ($)		6,458		6,288		3	%	2	%

Revenues for this commodity group decreased by $12 million, or 1% for the year ended December 31, 2024, when compared to 2023, mainly due to lower volumes; partly offset by higher revenue per RTM:

•Volumes: decreased mainly due to lower shipments of lumber due to continued weak commodity prices and soft market demand.

•Revenue per RTM: increased mainly due to freight rate increases and the positive translation impact of a weaker Canadian dollar; partly offset by lower applicable fuel surcharge rates.

Coal


	Year ended December 31,	2024		2023		% Change		% Change at constant currency
Revenues (millions)		$	929	$	1,017	(9	%)	(9	%)
RTMs (millions)		20,165		22,682		(11	%)	(11	%)
Revenue/RTM (cents)		4.61		4.48		3	%	2	%
Carloads (thousands)		456		511		(11	%)	(11	%)
Revenue/carload ($)		2,037		1,990		2	%	2	%

Revenues for this commodity group decreased by $88 million, or 9% for the year ended December 31, 2024, when compared to 2023, mainly due to lower volumes; partly offset by higher revenue per RTM:

•Volumes: decreased mainly due to the idling of a Western Canadian metallurgical coal mine, production issues at certain Canadian coal mines and a U.S. petroleum coke refinery as well as lower shipments of U.S. coal driven by weaker demand from utilities in the U.S.; partly offset by the re-opening of a Canadian metallurgical coal mine.

•Revenue per RTM: increased mainly due to freight rate increases and the positive translation impact of a weaker Canadian dollar; partly offset by lower applicable fuel surcharge rates.

32 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

Grain and fertilizers


	Year ended December 31,	2024		2023		% Change		% Change at constant currency
Revenues (millions)		$	3,422	$	3,265	5	%	4	%
RTMs (millions)		64,594		63,479		2	%	2	%
Revenue/RTM (cents)		5.30		5.14		3	%	2	%
Carloads (thousands)		690		670		3	%	3	%
Revenue/carload ($)		4,959		4,873		2	%	1	%

Revenues for this commodity group increased by $157 million, or 5% for the year ended December 31, 2024, when compared to 2023, mainly due to higher volumes and higher revenue per RTM:

•Volumes: increased mainly due to higher Canadian grain exports; partly offset by reduced potash exports as volumes diverted to CN in 2023 returned to their normal routing following completion of a terminal repair.

•Revenue per RTM: increased mainly due to freight rate increases and the positive translation impact of a weaker Canadian dollar; partly offset by lower applicable fuel surcharge rates.

Intermodal


	Year ended December 31,	2024		2023		% Change		% Change at constant currency
Revenues (millions)		$	3,757	$	3,823	(2	%)	(2	%)
RTMs (millions)		50,190		47,886		5	%	5	%
Revenue/RTM (cents)		7.49		7.98		(6	%)	(7	%)
Carloads (thousands)		2,115		2,078		2	%	2	%
Revenue/carload ($)		1,776		1,840		(3	%)	(4	%)

Revenues for this commodity group decreased by $66 million, or 2% for the year ended December 31, 2024, when compared to 2023, mainly due to lower revenue per RTM; partly offset by higher volumes:

•Volumes: increased mainly due to higher shipments of international intermodal driven by imports through Western Canadian ports, partly offset by lower shipments of domestic intermodal. Volumes were negatively impacted by diversions to other modes of transportation and ports due to the TCRC-related labor uncertainty and work stoppage.

•Revenue per RTM: decreased mainly due to lower applicable fuel surcharge rates, lower container storage fees and lower trucking services and an increase in the average length of haul; partly offset by freight rate increases and the positive translation impact of a weaker Canadian dollar.

RTMs increased more than Carloads in 2024 when compared to 2023, mainly due to higher long-haul shipments of imports through Western Canadian ports.

Automotive


	Year ended December 31,	2024		2023		% Change		% Change at constant currency
Revenues (millions)		$	894	$	945	(5	%)	(6	%)
RTMs (millions)		3,119		3,136		(1	%)	(1	%)
Revenue/RTM (cents)		28.66		30.13		(5	%)	(6	%)
Carloads (thousands)		208		232		(10	%)	(10	%)
Revenue/carload ($)		4,298		4,073		6	%	5	%

CN | 2025 Annual Report 33

MANAGEMENT'S DISCUSSION AND ANALYSIS

Revenues for this commodity group decreased by $51 million, or 5% for the year ended December 31, 2024, when compared to 2023, mainly due to lower volumes and lower revenue per RTM:

•Volumes: decreased mainly due to lower shipments of domestic finished vehicles due to plant closures, partly offset by higher shipments of imported finished vehicles. The decrease in volumes was also partly due to higher shipments of finished vehicles in 2023 as a result of automotive dealership restocking.

•Revenue per RTM: decreased mainly due to a significant increase in the average length of haul and lower applicable fuel surcharge rates; partly offset by freight rate increases and the positive translation impact of a weaker Canadian dollar.

Carloads decreased more than RTMs in 2024 when compared to 2023, mainly due to reduced short-haul domestic car shipments.

Other revenues


	Year ended December 31,	2024		2023		% Change		% Change at constant currency
Revenues (millions)		$	651	$	592	10	%	9	%

Other revenues increased by $59 million, or 10% for the year ended December 31, 2024, when compared to 2023, mainly due to higher vessel revenues from the iron ore supply chain.

Operating expenses

Operating expenses for the year ended December 31, 2024, amounted to $10,799 million compared to $10,231 million in 2023. The increase of $568 million, or 6%, was mainly due to higher labor and fringe benefits expense, the negative translation impact of a weaker Canadian dollar, the recognition of a loss on assets held for sale and higher costs driven by earlier winter operating conditions in the Western region in the fourth quarter of 2024; partly offset by lower fuel expense.


In millions	Year ended December 31,	2024		2023		% Change		% Change at constant currency (1)
Labor and fringe benefits		$	3,422	$	3,150	(9	%)	(8	%)
Purchased services and material		2,313		2,254		(3	%)	(2	%)
Fuel		2,060		2,097		2	%	3	%
Depreciation and amortization		1,892		1,817		(4	%)	(3	%)
Equipment rents		392		359		(9	%)	(8	%)
Other		642		554		(16	%)	(14	%)
Loss on assets held for sale		78		—		—	%	—	%


Total operating expenses		$	10,799	$	10,231	(6	%)	(5	%)

(1)This non-GAAP measure does not have any standardized meaning prescribed by GAAP and therefore, may not be comparable to similar measures presented by other companies. See the section of this MD&A entitled 2024 Results of operations – Constant currency for an explanation of this non-GAAP measure.

Labor and fringe benefits

Labor and fringe benefits expense increased by $272 million, or 9%, in 2024 when compared to 2023. The increase was mainly due to general wage increases, higher average headcount, higher pension expense, the negative translation impact of a weaker Canadian dollar, additional paid leave days mandated by the Government of Canada and earlier winter operating conditions in the Western region in the fourth quarter of 2024, which negatively impacted labor productivity.

Purchased services and material

Purchased services and material expense increased by $59 million, or 3%, in 2024 when compared to 2023. The increase was mainly due to higher material cost, higher incident costs, and the negative translation impact of a weaker Canadian dollar, partly offset by lower contracted services.

Fuel

Fuel expense decreased by $37 million, or 2%, in 2024 when compared to 2023. The decrease was mainly due to lower fuel prices; partly offset by higher intercarrier fuel costs, the negative translation impact of a weaker Canadian dollar, and higher volumes.

34 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

Depreciation and amortization

Depreciation and amortization expense increased by $75 million, or 4%, in 2024 when compared to 2023. The increase was mainly due to a higher depreciable asset base and the negative translation impact of a weaker Canadian dollar.

Equipment rents

Equipment rents expense increased by $33 million, or 9%, in 2024 when compared to 2023. The increase was mainly due to higher locomotive horse-power expense, higher car hire expense primarily driven by higher international intermodal volumes, and the negative translation impact of a weaker Canadian dollar.

Other

Other expense increased by $88 million, or 16%, in 2024 when compared to 2023. The increase was mainly due to higher software and support costs, higher legal provisions, higher insurance premiums, and the negative translation impact of a weaker Canadian dollar; partly offset by lower personal injury claim provisions.

Loss on assets held for sale

Other income and expenses

Interest expense

In 2024, Interest expense was $891 million compared to $722 million in 2023. The increase was mainly due to the higher average level of debt, higher average interest rates and the negative translation impact of a weaker Canadian dollar.

Other components of net periodic benefit income

In 2024, Other components of net periodic benefit income was $454 million compared to $479 million in 2023. The decrease was mainly due to higher amortization of net actuarial loss, partly offset by lower interest cost. These effects primarily resulted from changes to discount rates and higher actual returns compared to expected returns as determined at December 31, 2023.

Other income (loss)

In 2024, Other income was $42 million compared to $134 million in 2023. The decrease of $92 million was mainly due to a gain on disposal of property within the Bala Subdivision located in Markham and Richmond Hill, Ontario, Canada of $129 million in 2023.

Income tax expense

In 2024, the Company recorded an income tax expense of $1,404 million compared to an income tax expense of $863 million in 2023.

The effective tax rate for 2024 was 24.0% compared to 13.3% in 2023 and the adjusted effective tax rate for 2023 was 24.5%. (1)

In the fourth quarter of 2023, the Company received a ruling from taxation authorities in a non-U.S. foreign jurisdiction in connection with prior taxation years. As a result, the Company recorded a net deferred income tax recovery of $682 million, of which $713 million related to prior years.

During the second quarter of 2024, the Government of Canada enacted the global minimum corporate tax under the Pillar Two guidelines, as established by the Organization for Economic Co-operation and Development (OECD) in 2023. This enactment had no impact on the Company’s effective tax rate and income tax payments.

CN | 2025 Annual Report 35

MANAGEMENT'S DISCUSSION AND ANALYSIS

Summary of quarterly financial data


	2025								2024
	Quarters								Quarters
In millions, except per share data	Fourth		Third		Second		First		Fourth		Third		Second		First
Revenues	$	4,464	$	4,165	$	4,272	$	4,403	$	4,358	$	4,110	$	4,329	$	4,249
Operating income (1)	$	1,733	$	1,606	$	1,638	$	1,610	$	1,628	$	1,515	$	1,558	$	1,546
Net income (1)	$	1,248	$	1,139	$	1,172	$	1,161	$	1,146	$	1,085	$	1,114	$	1,103
Basic earnings per share	$	2.03	$	1.83	$	1.87	$	1.85	$	1.82	$	1.72	$	1.75	$	1.72
Diluted earnings per share (1)	$	2.03	$	1.83	$	1.87	$	1.85	$	1.82	$	1.72	$	1.75	$	1.72
Dividends per share	$	0.8875	$	0.8875	$	0.8875	$	0.8875	$	0.8450	$	0.8450	$	0.8450	$	0.8450

(1)Certain quarters include items that management believes do not necessarily arise as part of CN's normal day-to-day operations and can distort the analysis of trends in business performance. See the section of this MD&A entitled Non-GAAP measures – Adjusted performance measures for additional information on these items.

Revenues generated by the Company during the year are influenced by seasonal weather conditions, general economic conditions, cyclical demand for rail transportation and competitive forces in the transportation marketplace (see the section entitled Business risks of this MD&A for additional information). Operating expenses reflect the impact of freight volumes, seasonal weather conditions, labor costs, fuel prices, and the Company's productivity initiatives. Fluctuations in the Canadian dollar relative to the US dollar have also affected the conversion of the Company's US dollar-denominated revenues and expenses and resulted in fluctuations in Net income in the rolling eight quarters presented above.

2025 Fourth quarter operating results

Revenues for the fourth quarter ended December 31, 2025 were $4,464 million compared to $4,358 million in 2024, an increase of $106 million, or 2%. The increase was mainly due to higher volumes; partly offset by lower revenue per RTM:

•Volumes: increased mainly due to higher exports of Canadian grain, higher shipments of international intermodal driven by imports through Western Canadian ports, increased potash exports due to prior year terminal outage and higher shipments of domestic intermodal; partly offset by lower shipments of lumber and panels from continued unfavorable market conditions including the impact of higher U.S. anti-dumping and countervailing duties on Canadian lumber. The increase also reflects the lingering impact of the TCRC-related labor uncertainty and work stoppage in the third quarter of 2024 and West Coast port related labor disruptions in the fourth quarter of 2024 impacting the intermodal commodity group.

•Freight revenue per RTM: decreased mainly due to a significant increase in average length of haul, the negative translation impact of a stronger Canadian dollar and the impact of the April 1, 2025 elimination of the Canadian federal carbon tax program, the cost of which was charged back to customers; partly offset by freight rate increases and higher applicable fuel surcharge rates.

Fuel and carbon surcharge revenues decreased by $28 million in the fourth quarter of 2025 when compared to the same period in 2024, mainly due to the April 1, 2025 elimination of the Canadian federal carbon tax program; partly offset by higher applicable fuel surcharge rates.

Operating expenses for the fourth quarter of 2025 remained flat when compared to the same period in 2024. The impact of the April 1, 2025 elimination of the Canadian federal carbon tax program, lower depreciation expense, lower average headcount and lower fuel prices was offset by employee termination benefits and severance costs related to a workforce reduction program, higher legal provisions including $34 million related to a court ruling pertaining to a legal matter, general wage increases and advisory costs of $15 million related to rail consolidation matters.

Operating income for the fourth quarter of 2025 increased by $105 million, or 6%, to $1,733 million, when compared to the same period in 2024. The operating ratio was 61.2% in the fourth quarter of 2025 compared to 62.6% in the fourth quarter of 2024, a 1.4 point improvement.

Net income for the fourth quarter of 2025 was $1,248 million, an increase of $102 million, or 9%, when compared to the same period in 2024, and diluted earnings per share increased by 12% to $2.03. The increase was mainly due to higher operating income and a gain on the disposal of land.

36 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

Financial position

The following tables provide an analysis of the Company's balance sheet as at December 31, 2025 as compared to 2024. Assets and liabilities denominated in US dollars have been translated to Canadian dollars using the foreign exchange rate in effect at the balance sheet date. As at December 31, 2025 and 2024, the foreign exchange rates were $1.372 and $1.438 per US$1.00, respectively.


In millions	As at December 31,	2025		2024		Variance		Explanation of variance
Total assets		$	58,555	$	57,067	$	1,488
Cash and cash equivalents and restricted cash and cash equivalents		363		401		(38)		Refer to the Consolidated Statements of Cash Flows of the Company’s 2025 Annual Consolidated Financial Statements.
Other current assets, excluding cash and cash equivalents and restricted cash and cash equivalents		2,108		2,218		(110)		Decrease primarily due to lower accounts receivable and income taxes receivable; partly offset by an increase in prepaid expenses.
Properties		49,148		47,960		1,188		See the section of this MD&A entitled Liquidity and capital resources - Investing activities, increase primarily due to gross property additions of $3,658 million and the IANR acquisition, partly offset by depreciation of $1,932 million and the effect of foreign exchange.
Operating lease right-of-use-assets		440		485		(45)		Decrease mainly due to CN returning some of their expired railcar leases.
Pension asset		5,362		4,541		821		Increase primarily due to actual returns of $1,144 million and actuarial gains arising from the increase in the year-end discount rate from 4.65% to 4.88% of $373 million, partly offset by interest cost of $585 million and current service cost of $80 million.
Deferred income tax assets		611		689		(78)		Decrease due to a deferred income tax expense of $47 million recorded in Net income related to the amortization of tax-deductible goodwill and a foreign exchange loss of $31 million.
Intangible assets, goodwill and other		523		773		(250)		Decrease mainly due to a decrease in investment following the full consolidation of IANR; partly offset by the recognition of goodwill for IANR and lower prepaid expenses.
Total liabilities and shareholders' equity		$	58,555	$	57,067	$	1,488
Accounts payable and other excluding current portion of operating lease liabilities		2,682		2,676		6		Increase mainly due to higher income and other taxes and other accounts payable, partly offset by a decrease in accrued charges and timing of payments and volume-related factors related to trade payables.
Deferred income tax liabilities		11,223		10,874		349		Increase primarily due to deferred income tax expense of $287 million recorded in Net income, deferred income tax expense of $183 million recorded in Other comprehensive income, and a $90 million increase in temporary differences arising from the acquisition of the IANR, partly offset by a foreign exchange gain of $214 million recorded in Other comprehensive income.
Other liabilities and deferred credits		999		612		387		Increase primarily due to higher long-term contract liabilities and deferred credits and other.
Pension and other postretirement benefits		453		483		(30)		Decrease primarily due to employer contributions of $23 million, actuarial gains of $13 million and benefit payments of $10 million, partly offset by interest cost of $25 million.
Total long-term debt, including the current portion		21,206		20,894		312		See the section of this MD&A entitled Liquidity and capital resources - Financing activities, increase primarily due to the issuance of notes; partly offset by the net repayment increase of commercial paper and effect of foreign exchange.
Operating lease liabilities including the current portion		424		477		(53)		Decrease mainly due to CN returning some of their expired railcar leases.
Total shareholders' equity		21,568		21,051		517		Refer to the Consolidated Statements of Changes in Shareholders’ Equity of the Company’s 2025 Annual Consolidated Financial Statements.

CN | 2025 Annual Report 37

MANAGEMENT'S DISCUSSION AND ANALYSIS

Liquidity and capital resources

The Company's principal source of liquidity is cash generated from operations, which is supplemented by borrowings in the money markets and capital markets. To meet its short-term liquidity needs, the Company has access to various financing sources, including unsecured revolving credit facilities, commercial paper programs, and an accounts receivable securitization program. In addition to these sources, the Company can use equipment loans or issue debt securities to meet its longer-term liquidity needs. The strong focus on cash generation from all sources gives the Company increased flexibility in terms of meeting its financing requirements.

The Company's primary short-term and long-term cash requirements are discussed below:

•Short-term cash requirements: includes working capital requirements, such as labor and fringe benefits, fuel, income tax instalments, pension contributions, and contractual obligations; interest and principal payments on current debt financing; dividends; and share repurchases.

•Long-term cash requirements: includes capital expenditures relating to track infrastructure and other, interest and principal repayments of long-term debt financing, operating and finance lease obligations; business acquisitions and long-term contractual obligations.

The Company sets priorities on its uses of available funds based on short-term operational requirements, expenditures to continue to operate a safe railway and pursue strategic initiatives, while also considering its long-term contractual obligations and returning value to its shareholders; and as part of its financing strategy, the Company regularly reviews its capital structure, cost of capital, and the need for additional debt financing. For a summary of short-term and long-term contractual obligations, including material cash requirements related to such obligations, refer to the table within this section entitled Contractual obligations.

The Company has a working capital deficit, which is common in the capital-intensive rail industry, and is not an indication of a lack of liquidity. The Company maintains adequate resources to meet daily cash requirements, and has sufficient financial capacity to manage its day-to-day cash requirements and current obligations. As at December 31, 2025 and 2024, the Company had Cash and cash equivalents of $350 million and $389 million, respectively; Restricted cash and cash equivalents of $13 million and $12 million, respectively; and a working capital deficit of $1,225 million and $1,357 million, respectively. (1) The decrease in the working capital deficit was mainly due to lower commercial paper. There are currently no specific requirements relating to working capital other than in the normal course of business as discussed herein.

The Company's U.S. and other foreign subsidiaries maintain sufficient cash to meet their respective operational requirements. If the Company should require more liquidity in Canada than is generated by its domestic operations, the Company could decide to repatriate funds associated with undistributed earnings of its foreign operations, including its U.S. and other foreign subsidiaries. The impact on liquidity resulting from the repatriation of funds held outside Canada would not be significant as such repatriation of funds would not cause significant tax implications to the Company under the tax laws of Canada and the U.S. and other foreign tax jurisdictions, and the tax treaties currently in effect between them.

The Company expects cash from operations and its various sources of financing to be sufficient to meet its ongoing obligations. The Company is not aware of any trends or expected fluctuations in its liquidity that would impact its ongoing operations or financial condition as of the date of this MD&A.

(1)The Company defines working capital as current assets of $2,471 million (2024 - $2,619 million) less current liabilities of $3,696 million (2024 - $3,976 million).

Available financing sources

Shelf prospectus and registration statement

On April 2, 2024, the Company filed a shelf prospectus with Canadian securities regulators and a registration statement with the SEC, pursuant to which CN may issue debt securities in the Canadian and U.S. capital markets over a 25-month period following the filing date. This shelf prospectus and registration statement replaces CN's previous shelf prospectus and registration statement that was set to expire on June 4, 2024. Access to the Canadian and U.S. capital markets under the shelf prospectus and registration statement is dependent on market conditions.

38 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

The Company's access to long-term funds in the capital markets depends on its credit ratings and market conditions. The Company believes that it continues to have access to the capital markets. If the Company were unable to borrow funds at acceptable rates in the capital markets, the Company could borrow under its credit facilities, draw down on its accounts receivable securitization program, access the pledged cash under its letter of credit facilities, raise cash by disposing of surplus properties or otherwise monetizing assets, reduce discretionary spending or take a combination of these measures to assure that it has adequate funding for its business.

Revolving credit facilities

The Company has unsecured revolving credit facilities with a consortium of lenders. The unsecured credit facility of $2.5 billion is available for general corporate purposes and backstopping the Company's commercial paper programs. The facility consists of two tranches of $1.25 billion and was amended on March 28, 2025 to extend the tenor of each tranche by one year to, respectively, March 31, 2028 and March 31, 2030. This revolving credit facility agreement is structured as a sustainability linked loan whereby its applicable margins are adjusted up or down based on the Company's performance under certain sustainability goals. The unsecured credit facility of $1.0 billion is available for general corporate purposes and was amended on March 28, 2025 to extend its tenor by one year to March 17, 2027. The credit facilities provide borrowings at various benchmark interest rates, such as the Secured Overnight Financing Rate (SOFR) and the Canadian Overnight Repo Rate Average (CORRA), plus applicable margins, based on CN's credit ratings.

As at December 31, 2025 and 2024, the Company had no outstanding borrowings under these revolving credit facilities.

Equipment loans

The Company has various secured non-revolving term loan credit facilities for financing or refinancing the purchase of equipment. The equipment loans made under the non-revolving credit facilities have a tenor at inception varying from 15 to 20 years and are secured by rolling stock. Borrowings under the non-revolving term loan facilities are provided at SOFR or CORRA plus applicable margins.

As at December 31, 2025, the Company had outstanding borrowings of $1,329 million (2024 - $1,449 million) and had no further amounts available to be drawn under these facilities (2024 - $nil).

Commercial paper

The Company has a commercial paper program in Canada and in the U.S. Both programs are backstopped by the Company's $2.5 billion revolving credit facility. The maximum aggregate principal amount of commercial paper that can be issued is $2.5 billion, or the US dollar equivalent, on a combined basis. The commercial paper programs, which are subject to market rates in effect at the time of financing, provide the Company with a flexible financing alternative, and can be used for general corporate purposes. The cost of commercial paper and access to the commercial paper market in Canada and the U.S. are dependent on credit ratings and market conditions. If the Company were to lose access to its commercial paper program for an extended period of time, the Company could rely on its revolving credit facilities to meet its short-term liquidity needs.

As at December 31, 2025 and 2024, the Company had total commercial paper borrowings of US$90 million ($124 million) and US$501 million ($721 million), respectively, presented in Current portion of long-term debt on the Consolidated Balance Sheets.

Accounts receivable securitization program

The Company has an agreement to sell an undivided co-ownership interest in a revolving pool of accounts receivable to unrelated trusts for maximum cash proceeds of $450 million. On March 28, 2025, the Company extended the term of its agreement by one year to February 2, 2027.

The trusts are multi-seller trusts and the Company is not the primary beneficiary. Funding for the acquisition of these assets is customarily through the issuance of asset-backed commercial paper notes by the unrelated trusts.

The Company has retained the responsibility for servicing, administering and collecting the receivables sold. The average servicing period is approximately one month and the interest on borrowings under the accounts receivable securitization program is renewed based on commercial paper rates then in effect, or CORRA or SOFR if the commercial paper market is inaccessible. Subject to customary indemnifications, each trust's recourse is limited to the accounts receivable transferred.

The accounts receivable securitization program provides the Company with readily available short-term financing for general corporate use. In the event the program is no longer available before its scheduled maturity, the Company expects to meet its future payment obligations through its various sources of financing including its revolving credit facilities and commercial paper program, and/or access to capital markets.

As at December 31, 2025 and 2024, the Company had no outstanding borrowings under the accounts receivable securitization program.

CN | 2025 Annual Report 39

MANAGEMENT'S DISCUSSION AND ANALYSIS

Bilateral letter of credit facilities

The Company has a series of committed and uncommitted bilateral letter of credit facility agreements. On March 28, 2025, the Company extended the maturity date of its committed bilateral letter of credit facility agreements to April 28, 2028. The agreements are held with various banks to support the Company's requirements to post letters of credit in the ordinary course of business. Under these agreements, the Company has the option from time to time to pledge collateral in the form of cash or cash equivalents, for a minimum term of one month, equal to at least the face value of the letters of credit outstanding.

As at December 31, 2025, the Company had outstanding letters of credit of $321 million (2024 - $329 million) under the committed facilities from a total available amount of $362 million (2024 - $366 million) and $153 million (2024 - $142 million) under the uncommitted facilities.

Additional information relating to the Company's financing sources is provided in Note 15 – Debt to the Company's 2025 Annual Consolidated Financial Statements.

Credit ratings

The Company's ability to access funding in the debt capital markets and the cost and amount of funding available depends in part on its credit ratings. Rating downgrades could limit the Company's access to the capital markets, or increase its borrowing costs.

The following table provides the Company's long-term debt and commercial paper credit ratings as of the date of this MD&A:


	Outlook	Long-term debt rating (1)	Commercial paper rating (1)
DBRS Morningstar	Stable	A	R-1 (low)
Moody's Investors Service	Stable	A2	P-1
S&P Global Ratings	Stable	A-	A-2

(1)These credit ratings are not recommendations to purchase, hold, or sell the securities referred to above. Ratings may be revised or withdrawn at any time by the credit rating agencies. Each credit rating should be evaluated independently of any other credit rating.

Cash flows


In millions	Year ended December 31,	2025		2024		Variance
Net cash provided by operating activities		$	7,049	$	6,699	$	350
Net cash used in investing activities		(3,713)		(3,607)		(106)
Net cash used in financing activities		(3,371)		(3,620)		249
Effect of foreign exchange fluctuations on cash, cash equivalents, restricted cash, and restricted cash equivalents		(3)		5		(8)
Net decrease in cash, cash equivalents, restricted cash, and restricted cash equivalents		(38)		(523)		485
Cash, cash equivalents, restricted cash, and restricted cash equivalents, beginning of year		401		924		(523)
Cash, cash equivalents, restricted cash, and restricted cash equivalents, end of year		$	363	$	401	$	(38)

Free cash flow

Free cash flow is a useful measure of liquidity as it demonstrates the Company's ability to generate cash for debt obligations and for discretionary uses such as payment of dividends, share repurchases and strategic opportunities. The Company defines its free cash flow measure as the difference between net cash provided by operating activities and net cash used in investing activities, adjusted for the impact of (i) business acquisitions and combinations and (ii) merger transaction-related payments, cash receipts and cash income taxes, which are items that are not indicative of operating trends. Free cash flow does not have any standardized meaning prescribed by GAAP and therefore, may not be comparable to similar measures presented by other companies.

40 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

The following table provides a reconciliation of Net cash provided by operating activities in accordance with GAAP, as reported for the years ended December 31, 2025, 2024 and 2023, to the non-GAAP free cash flow presented herein:


In millions	Year ended December 31,	2025		2024		2023
Net cash provided by operating activities		$	7,049	$	6,699	$	6,965
Net cash used in investing activities		(3,713)		(3,607)		(3,468)
Net cash provided before financing activities		3,336		3,092		3,497
Adjustments:
Business acquisitions and combinations (1)		—		—		390





Total adjustments				$	—	$	—	$	390
Free cash flow		$	3,336	$	3,092	$	3,887

(1)Relates to the acquisition of the shares of Iowa Northern Railway Company for $312 million and the business combination of Cape Breton & Central Nova Scotia Railway for $78 million. See Note 3 – Business acquisitions and combinations to the Company's 2025 Annual Consolidated Financial Statements for additional information.

Operating activities

Net cash provided by operating activities increased by $350 million in 2025 when compared to 2024, mainly due to changes in working capital items and higher operating income.

Pension contributions

The Company's contributions to its various defined benefit pension plans are made in accordance with the applicable legislation in Canada and the U.S. and such contributions follow minimum and maximum thresholds as determined by actuarial valuations. Pension contributions for the years ended December 31, 2025 and 2024 were $75 million and $69 million, respectively. Based on the results of the Company's actuarial valuations for funding purposes as at December 31, 2024, the CN Pension Plan remained fully funded and at a level such that the Company continues to be prohibited from making contributions to the defined benefit component of this plan.

During the first quarter of 2025, one of CN's Canadian defined contribution pension plans was merged into the CN Pension Plan and did not result in a remeasurement of the funded status of that plan. Given the solvency ratio of certain Canadian registered defined benefit pension plans is above a specified threshold as at the last filed actuarial valuation, their next actuarial valuation for funding purposes would be required as at December 31, 2027, to be performed in 2028, although the valuation may be conducted earlier at the Company's discretion for those plans. Based on the anticipated results of these valuations, the CN Pension Plan is expected to remain fully funded and at a level such that the Company would continue to be prohibited from making contributions to the defined benefit component of the CN Pension Plan in 2026. As such, total cash contributions of approximately $60 million are expected to be made in 2026 for all pension plans other than the defined benefit component of the CN Pension Plan.

See the section of this MD&A entitled Critical accounting estimates – Pensions benefits for additional information pertaining to the funding of the Company's pension plans. Additional information relating to the pension plans is provided in Note 17 – Pensions and other postretirement benefits to the Company's 2025 Annual Consolidated Financial Statements.

Income tax payments

The Company is required to make scheduled instalment payments as prescribed by the tax authorities. In Canada, the Company's domestic jurisdiction, tax instalments in a given year are generally based on the prior year's taxable income whereas in the U.S., the Company's predominant foreign jurisdiction, they are based on forecasted taxable income of the current year.

In 2025, net income tax payments were $935 million (2024 - $1,221 million). The decrease was mainly due to lower required instalment payments in Canada.

For 2026, the Company's net income tax payments are expected to be approximately $1.3 billion. The increase is mostly due to higher required instalment payments mainly caused by higher taxable income.

Investing activities

Net cash used in investing activities increased by $106 million in 2025 when compared to 2024, mainly due to higher property additions.

CN | 2025 Annual Report 41

MANAGEMENT'S DISCUSSION AND ANALYSIS

Property additions


In millions	Year ended December 31,	2025		2024
Track and roadway (1)		$	2,438	$	2,088
Rolling stock		464		799
Buildings		145		117
Information technology		281		365
Other		330		180


Property additions (2)		$	3,658	$	3,549

(1)In 2025, approximately 62% (2024 - 73%) of the Track and roadway property additions were incurred to renew basic infrastructure. Costs relating to normal repairs and maintenance of Track and roadway properties are expensed as incurred, and amounted to approximately 11% of the Company's total operating expenses in 2025 (2024 - 11%).

(2)In 2025 and 2024, property additions included expenditures of $353 million and $75 million, respectively, related to construction obligations in freight contracts for which the Company has received contract consideration (or such consideration is due) from its customers. Such consideration is recorded in Contract liabilities in the Consolidated Balance Sheets and recognized in Revenues over the life of the freight service obligation.

Reinvestment in the business

In 2025, CN spent approximately $3.7 billion in its capital program, of which $1.8 billion was invested to maintain the safety and integrity of its network, particularly track infrastructure. CN's capital spending also included $1.4 billion for strategic initiatives to increase capacity, enable growth and improve network resiliency, including line capacity upgrades and information technology initiatives, and $0.5 billion on equipment.

Financing activities

Net cash used in financing activities decreased by $249 million in 2025 when compared to 2024, mainly due to lower repurchases of common shares; partly offset by higher net repayments of debt including commercial paper.

Debt financing activities

Debt financing activities in 2025 included the following:

•On November 12, 2025, issuance of US$300 million ($421 million) 4.20% Notes due 2031 and US$400 million ($561 million) 4.75% Notes due 2035 in the U.S. capital markets, which resulted in total net proceeds of $970 million which will be used to repay at maturity all US$500 million principal amount of its 2.75% notes due in March 2026 and for general corporate purposes including the repayment of commercial paper;

•On September 22, 2025, repayment of $350 million 2.80% Notes due 2025 upon maturity;

•On June 10, 2025, issuance of $500 million 3.50% Notes due 2030 and $500 million 4.20% Notes due in 2035 in the Canadian capital markets, which resulted in total net proceeds of $995 million which was used for general corporate purposes, including the refinancing of outstanding indebtedness;

•Repayment of equipment loans of $88 million;

•Net repayment of commercial paper of $612 million; and

•Repayment of finance leases of $2 million.

Debt financing activities in 2024 included the following:

•On November 21, 2024, repayment of US$350 million ($490 million) 2.95% Notes due 2024 upon maturity;

•On September 18, 2024, issuance of US$750 million ($1,020 million) 4.38% Notes due 2034 in the U.S. capital markets, which resulted in total net proceeds of $1,011 million;

•On May 2, 2024, issuance of $700 million 4.60% Notes due 2029 and $550 million 5.10% Notes due 2054 in the Canadian capital markets, which resulted in total net proceeds of $1,242 million;

•Repayment of equipment loans of $63 million;

•On October 29, 2024, issuance of a $366 million equipment loan under the non-revolving credit facility;

•On March 22, 2024, issuance of a $412 million equipment loan under the non-revolving credit facility;

•Repayment of equipment loans of $63 million;

•Proceeds from the accounts receivable securitization program of $450 million;

•Repayment of accounts receivable securitization borrowings of $450 million;

•Net repayment of commercial paper of $1,381 million; and

•Repayment of finance leases of $31 million.

42 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

Additional information relating to the Company's outstanding debt securities is provided in Note 15 – Debt to the Company's 2025 Annual Consolidated Financial Statements.

Repurchase of common shares

The Company may repurchase its common shares pursuant to a NCIB at prevailing market prices plus brokerage fees, or such other prices as may be permitted by the Toronto Stock Exchange (TSX). The Company repurchased 16.0 million common shares under its NCIB effective between February 4, 2025 and February 3, 2026, which allowed for the repurchase of up to 20.0 million common shares. Previous NCIBs allowed for the repurchase of up to 32.0 million common shares between February 1, 2024 and January 31, 2025, and up to 32.0 million common shares between February 1, 2023 and January 31, 2024.

On June 20, 2024, the Canadian government enacted legislation implementing a two percent tax on net share repurchases made on or after January 1, 2024. As a result, the Company has accrued a liability of $39 million for the net share repurchases made during the year ended December 31, 2025 (2024 - $51 million), which was accounted for as a direct cost of common share repurchases and recorded in Shareholders’ equity. The tax obligation is required to be paid within the first quarter of the following year.


In millions, except per share data	Year ended December 31,	2025		2024		2023			Total NCIB
February 2025 - February 2026 NCIB
Number of common shares		14.3		N/A		N/A			14.3
Weighted-average price per share (1)		$	136.92	N/A		N/A			$	136.92
Amount of repurchase (1)		$	1,946	N/A		N/A			$	1,946
February 2024 - January 2025 NCIB
Number of common shares		0.6		13.3		N/A			13.9
Weighted-average price per share (1)		$	150.15	$	172.30	N/A			$	171.23
Amount of repurchase (1)		$	101	$	2,286	N/A			$	2,387
February 2023 - January 2024 NCIB
Number of common shares		N/A		2.1		26.6			28.7
Weighted-average price per share (1)		N/A		$	170.63	$	155.75		$	156.86
Amount of repurchase (1)		N/A		$	365	$	4,142		$	4,507
Total for the year
Number of common shares		14.9		15.4		29.1		(2)
Weighted-average price per share (1)		$	137.51	$	172.07	$	156.37	(2)
Amount of repurchase (1)		$	2,047	$	2,651	$	4,551	(2)

(1)Includes brokerage fees and tax on share repurchases.

(2)Includes 2023 repurchases from the February 2022 - January 2023 NCIB, which consisted of 2.5 million common shares, a weighted-average price per share of $162.88 and an amount of repurchases of $409 million.

On January 30, 2026, the Company announced that its Board of Directors had approved a new NCIB, which allows for the repurchase of up to 24.0 million common shares between February 4, 2026 and February 3, 2027.

The Company’s NCIB notices may be found online on SEDAR+ at www.sedarplus.ca and on the SEC's website at www.sec.gov through EDGAR. Printed copies may be obtained by contacting the Corporate Secretary’s Office. Information contained on, or accessible through, our website is not incorporated by reference into this MD&A.

Share Trusts

The Company's Employee Benefit Plan Trusts ("Share Trusts") purchase CN's common shares on the open market, which are used to deliver common shares under the Share Units Plan and the Employee Share Investment Plan (ESIP). Shares purchased by the Share Trusts are retained until the Company instructs the trustee to transfer shares to participants of the Share Units Plan or the ESIP. Additional information relating to Share Trusts is provided in Note 18 – Share capital to the Company's 2025 Annual Consolidated Financial Statements.

CN | 2025 Annual Report 43

MANAGEMENT'S DISCUSSION AND ANALYSIS

Share purchases


In millions, except per share data	Year ended December 31,	2025		2024		2023
Share purchases by Share Units Plan Share Trusts
Number of common shares		0.1		0.1		—
Weighted-average price per share		$	137.28	$	173.49	$	—
Amount of purchase		$	13	$	20	$	—
Share purchases by ESIP Share Trusts
Number of common shares		0.3		0.2		0.2
Weighted-average price per share		$	138.23	$	163.11	$	156.89
Amount of purchase		$	43	$	30	$	28
Total purchases		$	56	$	50	$	28

Share settlements


In millions, except per share data	Year ended December 31,	2025		2024		2023
Share settlements by Share Units Plan Share Trusts
Number of common shares		—		0.3		0.3
Weighted-average price per share		$	127.87	$	127.87	$	122.08
Amount of settlement		$	5	$	37	$	31
Share settlements by ESIP Share Trusts
Number of common shares		0.2		0.2		0.2
Weighted-average price per share		$	150.98	$	157.51	$	151.32
Amount of settlements		$	28	$	28	$	23
Total settlements		$	33	$	65	$	54

Dividends paid

During 2025, the Company paid quarterly dividends of $0.8875 per share amounting to $2,208 million, compared to $2,138 million, at the rate of $0.8450 per share, in 2024 and $2,071 million, at the rate of $0.7900 per share, in 2023. On January 30, 2026, the Company announced that its Board of Directors approved an increase of 3% to the quarterly dividend to common shareholders, from $0.8875 per share in 2025 to $0.9150 per share in 2026.

The following is a summary of the dividends paid and quarterly dividends per share for the last five one-year periods ended December 31, 2025, 2024, 2023, 2022 and 2021. CN's dividend growth rate has increased at a compound annual growth rate (CAGR) of 10% from 2021 to 2025:

44 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

Contractual obligations

In the normal course of business, the Company incurs contractual obligations. The following table sets forth the Company's contractual obligations and related cash requirements for the following items as at December 31, 2025:


In millions	Total		2026		2027		2028		2029		2030		2031 & thereafter
Debt obligations (1)	$	21,201	$	902	$	77	$	1,079	$	1,129	$	1,130	$	16,884
Interest on debt obligations	13,745		918		908		905		823		778		9,413
Finance lease obligations	5		4		1		—		—		—		—
Operating lease obligations (2)	674		128		99		64		33		23		327
Purchase obligations (3)	2,121		1,583		215		240		67		14		2
Other long-term liabilities (4)	1,001		109		55		84		51		53		649
Total contractual obligations	$	38,747	$	3,644	$	1,355	$	2,372	$	2,103	$	1,998	$	27,275

(1)Presented net of unamortized discounts and debt issuance costs and excludes finance lease obligations.

(2)Includes $250 million of imputed interest.

(3)Includes fixed and variable commitments for information technology services and licenses, rail, engineering services, locomotives, railroad cars, wheels, rail ties, as well as other equipment and services. Costs of variable commitments were estimated using forecasted prices and volumes.

(4)Mainly includes expected payments for workers' compensation, pension benefit payments for the Company's non-registered supplemental pension plan, postretirement benefits other than pensions, net unrecognized tax benefits and environmental liabilities.

Adjusted debt-to-adjusted EBITDA multiple

Management believes that the adjusted debt-to-adjusted EBITDA multiple is a useful credit measure because it reflects the Company's ability to service its debt and other long-term obligations. The Company calculates the adjusted debt-to-adjusted EBITDA multiple as adjusted debt divided by the last twelve months of adjusted EBITDA. Adjusted debt is defined as the sum of Long-term debt and Current portion of long-term debt as reported on the Company’s Consolidated Balance Sheets as well as Operating lease liabilities, including current portion and pension plans in deficiency recognized on the Company's Consolidated Balance Sheets due to the debt-like nature of their contractual and financial obligations. Adjusted EBITDA is calculated as Net income excluding Interest expense, Income tax expense, Depreciation and amortization, operating lease cost, Other components of net periodic benefit income, Other income (loss), and other significant items that are not reflective of CN's underlying business operations and which could distort the analysis of trends in business performance. Adjusted debt and adjusted EBITDA are non-GAAP measures used to compute the adjusted debt-to-adjusted EBITDA multiple. These measures do not have any standardized meaning prescribed by GAAP and therefore, may not be comparable to similar measures presented by other companies.

CN | 2025 Annual Report 45

MANAGEMENT'S DISCUSSION AND ANALYSIS

The following table provides a reconciliation of debt and Net income in accordance with GAAP, reported as at and for the years ended December 31, 2025, 2024 and 2023, respectively, to the adjusted measures presented herein, which have been used to calculate the non-GAAP adjusted debt-to-adjusted EBITDA multiple:


In millions, unless otherwise indicated	As at and for the year ended December 31,	2025		2024		2023
Debt (1)		$	21,206	$	20,894	$	18,473
Adjustments:
Operating lease liabilities, including current portion (2)		424		477		415
Pension plans in deficiency (3)		329		350		362
Adjusted debt		$	21,959	$	21,721	$	19,250
Net income		$	4,720	$	4,448	$	5,625
Interest expense		913		891		722
Income tax expense		1,544		1,404		863
Depreciation and amortization		1,938		1,892		1,817
Operating lease cost (4)		160		153		149
Other components of net periodic benefit income		(502)		(454)		(479)
Other income		(88)		(42)		(134)

Adjustments:
Workforce reduction program (5)		34		—		—
Advisory costs related to rail consolidation matters (6)		15		—		—
Loss on assets held for sale (7)		—		78		—

Adjusted EBITDA		$	8,734	$	8,370	$	8,563
Adjusted debt-to-adjusted EBITDA multiple (times)		2.51		2.60		2.25

(1)Represents the aggregate of Current portion of long-term and Long-term debt as disclosed on the Consolidated Balance Sheets.

(2)Represents the present value of operating lease payments. See Note 12 – Leases to the Company's 2025 Annual Consolidated Financial Statements for additional information.

(3)Represents the total funded deficit of all defined benefit pension plans with a projected benefit obligation in excess of plan assets. See Note 17 – Pensions and other postretirement benefits to the Company's 2025 Annual Consolidated Financial Statements for additional information.

(4)Represents the operating lease costs recorded in Purchased services and material and Equipment rents within the Consolidated Statements of Income. See Note 12 – Leases to the Company's 2025 Annual Consolidated Financial Statements for additional information.

(5)Relates to employee termination benefits and severance costs related to a workforce reduction program, recorded in Labor and fringe benefits within the Consolidated Statements of Income.

(6)Represents advisory costs related to analysis and advocacy for STB enforcement of antitrust laws pertaining to the potential merger between Union Pacific and Norfolk Southern recorded in the fourth quarter in Purchased services and materials within the Consolidated Statements of Income.

(7)Relates to a loss on assets held for sale of $78 million recorded in the second quarter, resulting from an agreement to transfer the ownership and related risks and obligations of the Quebec Bridge located in Quebec, Canada, to the Government of Canada. See Note 5 - Assets held for sale to the Company's 2025 Annual Consolidated Financial Statements for additional information.

Off balance sheet arrangements

Guarantees and indemnifications

In the normal course of business, the Company enters into agreements that may involve providing guarantees or indemnifications to third parties and others, which may extend beyond the term of the agreements. These include, but are not limited to, standby letters of credit, surety and other bonds, and indemnifications that are customary for the type of transaction or for the railway business. As at December 31, 2025, the Company has not recorded a liability with respect to guarantees and indemnifications. Additional information relating to guarantees and indemnifications is provided in Note 21 – Major commitments and contingencies to the Company's 2025 Annual Consolidated Financial Statements.

Outstanding share data

As at February 4, 2026, the Company had 611.4 million common shares and 3.3 million stock options outstanding.

46 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

Financial instruments

Risk management

In the normal course of business, the Company is exposed to various risks from its use of financial instruments. To manage these risks, the Company follows a financial risk management framework, which is monitored and approved by the Company's Audit, Finance and Risk Committee, with a goal of maintaining a strong balance sheet, optimizing earnings per share and free cash flow, financing its operations at an optimal cost of capital and preserving its liquidity. The Company has limited involvement with derivative financial instruments in the management of its risks and does not hold or issue them for trading or speculative purposes.

Credit risk

Credit risk arises from cash and temporary investments, accounts receivable and derivative financial instruments. To manage credit risk associated with cash and temporary investments, the Company places these financial assets with governments, major financial institutions, or other creditworthy counterparties, and performs ongoing reviews of these entities. To manage credit risk associated with accounts receivable, the Company reviews the credit history of each new customer, monitors the financial condition and credit limits of its customers, and keeps the average daily sales outstanding within an acceptable range. The Company works with customers to ensure timely payments, and in certain cases, requires financial security, including letters of credit. CN also obtains credit insurance for certain high risk customers. Although the Company believes there are no significant concentrations of customer credit risk, economic conditions can affect the Company's customers and can result in an increase to the Company's credit risk and exposure to business failures of its customers. A widespread deterioration of customer credit and business failures of customers could have a material adverse effect on the Company's results of operations, financial position or liquidity. The Company considers the risk due to the possible non-performance by its customers to be remote.

The Company has limited involvement with derivative financial instruments, however from time to time, it may enter into derivative financial instruments to manage its exposure to interest rates or foreign currency exchange rates. To manage the counterparty risk associated with the use of derivative financial instruments, the Company enters into contracts with major financial institutions that have been accorded investment grade ratings. Though the Company is exposed to potential credit losses due to non-performance of these counterparties, the Company considers this risk to be remote.

Liquidity risk

Liquidity risk is the risk that sufficient funds will not be available to satisfy financial obligations as they come due. In addition to cash generated from operations, which represents its principal source of liquidity, the Company manages liquidity risk by aligning other external sources of funds which can be obtained upon short notice, such as revolving credit facilities, commercial paper programs, and an accounts receivable securitization program. As well, the Company can issue debt securities in the Canadian and U.S. capital markets under its shelf prospectus and registration statement. The Company's access to long-term funds in the debt capital markets depends on its credit ratings and market conditions. The Company believes that its investment grade credit ratings contribute to reasonable access to capital markets. See the section of this MD&A entitled Liquidity and capital resources for additional information relating to the Company's available financing sources and its credit ratings.

Foreign currency risk

Foreign exchange forward contracts

The Company conducts its business in both Canada and the U.S. and as a result, is affected by currency fluctuations. Changes in the exchange rate between the Canadian dollar and the US dollar affect the Company's revenues and expenses. To manage foreign currency risk, the Company designates US dollar-denominated debt of the parent company as a foreign currency hedge of its net investment in foreign operations. As a result, from the dates of designation, foreign exchange gains and losses on translation of the Company's US dollar-denominated debt are recorded in Accumulated other comprehensive loss, which minimizes volatility of earnings resulting from the conversion of US dollar-denominated debt into the Canadian dollar.

CN | 2025 Annual Report 47

MANAGEMENT'S DISCUSSION AND ANALYSIS

The Company also enters into foreign exchange forward contracts to manage its exposure to foreign currency risk. As at December 31, 2025, the Company had outstanding foreign exchange forward contracts to purchase a notional value of US$477 million (2024 - US$580 million). These outstanding contracts are at a weighted-average exchange rate of $1.39 per US$1.00 (2024 - $1.37 per US$1.00). The weighted-average term of the contracts is 110 days (2024 - 88 days). Changes in the fair value of foreign exchange forward contracts, resulting from changes in foreign exchange rates, are recognized in Other income in the Consolidated Statements of Income as they occur. For the year ended December 31, 2025, the Company recorded a loss of $37 million (2024 - gain of $226 million; 2023 - loss of $45 million) related to foreign exchange forward contracts. These gains and losses were largely offset by the re-measurement of US dollar-denominated monetary assets and liabilities recognized in Other income. As at December 31, 2025, the fair value of outstanding foreign exchange forward contracts included in Other current assets and Accounts payable and other was $nil and $10 million, respectively (2024 - $38 million and $nil, respectively).

The estimated annual impact on Net income of a one-cent change in the Canadian dollar relative to the US dollar is approximately $28 million.

Cross-currency interest rate swaps

As at December 31, 2025, the aggregate notional amount of cross-currency interest rate swaps entered into was US$975 million to hedge the US-to-Canadian dollar currency fluctuations on US dollar-denominated notes maturing on March 1, 2026 and July 15, 2028, for an aggregate principal amount of $1,401 million with a weighted average fixed annual interest rate of 3.33%.

These cross-currency interest rate swaps were designated as qualifying hedging instruments and were accounted for as cash flow hedges, with their critical terms corresponding to the related US dollar-denominated notes.

As at December 31, 2025, the cumulative changes in fair values of these cross-currency interest rate swaps recorded in Accumulated other comprehensive loss in derivative instruments resulted in a loss of $45 million. As at December 31, 2025, the amounts amortized from Accumulated other comprehensive loss to Other income related to foreign currency exposure was a loss of $62 million and to Interest expense was a gain of $14 million in the same period that the carrying values of the two US dollar-denominated notes were remeasured to Canadian dollars and the interest expense was recognized.

As at December 31, 2025, the fair value of outstanding cross-currency interest rate swaps included in Other current asset was $7 million, Accounts payable and other was $29 million and Other liabilities and deferred credits was $30 million.

The cash flows related to these cross-currency interest rate swaps that pertain to the periodic interest settlements are classified as operating activities and the cash flows that pertain to the principal balance will be classified as financing activities.

Interest rate risk

The Company is exposed to interest rate risk, which is the risk that the fair value or future cash flows of a financial instrument will vary as a result of changes in market interest rates. Such risk exists in relation to the Company's debt. The Company mainly issues fixed-rate debt, which exposes the Company to variability in the fair value of the debt. The Company also issues debt with variable interest rates, which exposes the Company to variability in interest expense. To manage interest rate risk, the Company manages its borrowings in line with liquidity needs, maturity schedule, and currency and interest rate profile. In anticipation of future debt issuances, the Company may use derivative instruments such as forward rate agreements.

Treasury Locks

During 2025 and 2024, the Company entered into treasury lock agreements to hedge US Treasury benchmark rates related to expected debt issuances in 2025 and 2024, respectively. The treasury locks were designated as cash flow hedging instruments with cumulative gains or losses recorded in Accumulated other comprehensive loss in derivative instruments. Upon settlement, cash proceeds or outflows were included in operating activities in the Consolidated Statements of Cash Flows, and the gain or loss was recorded in Accumulated other comprehensive loss which is amortized over the term of the corresponding debt and recognized as an adjustment to interest expense on the Consolidated Statements of Income. In conjunction with the November 6, 2025 debt issuance, the Company settled total treasury locks with a notional amount of US$600 million ($847 million), resulting in a cumulative loss of $1 million. In conjunction with the September 18, 2024 debt issuance, the Company settled treasury locks with a notional amount of US$500 million ($680 million), resulting in a cumulative loss of $15 million. As at December 31, 2025 and 2024, there were no treasury locks outstanding.

48 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

Interest rate swaps

As at December 31, 2025, the Company had outstanding swaps with a notional amount of $1.0 billion designated as qualifying hedging instruments and accounted for as fair value hedges on a cumulative $1.0 billion of notes maturing on June 10, 2030 and June 10, 2035. The swaps were designed to hedge the interest rate risk associated with market fluctuations attributable to the CORRA. The fair value gain or loss on the swaps as well as any offsetting loss or gain on the hedged notes attributable to the hedged risk are recorded in Interest expense.

As at December 31, 2025, the cumulative change in fair value of these swaps recorded in Other current assets and Other liabilities and deferred credits resulted in a gain and loss of $5 million and $16 million, respectively. As at December 31, 2025, the hedging adjustment included in the carrying amount of the hedged notes within Long-term debt was a gain of $11 million.

Periodic net interest accruals for these swaps are recorded in Interest expense which was $1 million for the year ended December 31, 2025, and their related settlements will be included as part of cash flows from operating activities.

The estimated annual impact on Net income of a one-percent change in the interest rate on floating rate debt is approximately $24 million.

Commodity price risk

The Company is exposed to commodity price risk related to purchases of fuel and the potential reduction in Net income due to increases in the price of diesel. Fuel prices are impacted by geopolitical events, changes in the economy or supply disruptions. Fuel shortages can occur due to refinery disruptions, production quota restrictions, climate, and labor and political instability.

The Company manages fuel price risk by offsetting the impact of rising fuel prices with the Company's fuel surcharge program. The surcharge applied to customers is determined in the second calendar month prior to the month in which it is applied, and is generally calculated using the average monthly price of On-Highway Diesel.

While the Company's fuel surcharge program provides effective coverage, residual exposure remains given that fuel price risk cannot be completely managed due to timing and given the volatility in the market. As such, the Company may enter into derivative instruments to manage such risk when considered appropriate.

Fair value of financial instruments

The financial instruments that the Company measures at fair value on a recurring basis in periods subsequent to initial recognition are categorized into the following levels of the fair value hierarchy based on the degree to which inputs are observable:

•Level 1: Inputs are quoted prices for identical instruments in active markets

•Level 2: Significant inputs (other than quoted prices included in Level 1) are observable

•Level 3: Significant inputs are unobservable

The carrying amounts of Cash and cash equivalents and Restricted cash and cash equivalents approximate fair value. These financial instruments include highly liquid investments purchased three months or less from maturity, for which the fair value is determined by reference to quoted prices in active markets.

The carrying amounts of Accounts receivable, Other current assets and Accounts payable and other approximate fair value due to their short maturity, unless otherwise specified. The fair value of equity investments with readily determinable fair values, included in Intangible assets, goodwill and other, is classified as Level 1 with gains and losses being recorded in Other income within the Consolidated Statements of Income. The fair value of derivative financial instruments, included in Other current assets, Intangible assets, goodwill and other and Accounts payable and other is classified as Level 2 and is used to manage the Company's exposure to foreign currency and interest rate risk. The fair value is measured by discounting future cash flows, estimated based on future interest rates and foreign exchange rates, as applicable, derived from market data and using a discount rate derived from market data for financial instruments subject to similar risks and maturities.

The carrying amount of the Company's debt does not approximate fair value. The fair value is estimated based on quoted market prices for the same or similar debt instruments, as well as discounted cash flows using current interest rates for debt with similar terms, company rating, and remaining maturity. The Company classifies debt as Level 2. As at December 31, 2025, the Company's debt, excluding finance leases, had a carrying amount of $21,201 million (2024 - $20,887 million) and a fair value of $20,246 million (2024 - $19,688 million). The carrying amount of debt excluding finance leases exceeded the fair value due to an increase in market rates compared to the stated coupon rate.

CN | 2025 Annual Report 49

MANAGEMENT'S DISCUSSION AND ANALYSIS

Recent accounting pronouncements

The following Accounting Standards Update (ASU) issued by the Financial Accounting Standards Board (FASB) have been adopted by the Company:

ASU 2023-09 – Income Taxes (Topic 740): Improvements to Income Tax Disclosures

The ASU amends the rules on income tax disclosures by modifying or eliminating certain existing income tax disclosure requirements in addition to establishing new requirements. The amendments address investor requests for more transparency about income taxes, including jurisdictional information, by requiring consistent categories and greater disaggregation of information. The ASU’s two primary amendments relate to the rate reconciliation and income taxes paid annual disclosures.

Reconciling items presented in the rate reconciliation are in dollar amounts and percentages, and are disaggregated into specified categories with certain reconciling items further broken out by nature and/or jurisdiction using a 5% threshold of domestic federal taxes. Income taxes paid are disaggregated between federal, provincial/territorial, and foreign taxing jurisdictions using a 5% threshold of total income taxes paid net of refunds received.

The ASU is effective for annual periods beginning after December 15, 2024. The Company adopted this standard prospectively in the fourth quarter of 2025 with an effective date of January 1, 2025 and has included the disaggregation of rate reconciliation items and income tax payments by specified categories, nature and/or jurisdiction as described above within Note 7 – Income taxes to the Company's 2025 Annual Consolidated Financial Statements.

ASU 2025-05 – Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets

This ASU introduces an optional practical expedient to simplify the estimation of expected credit losses on current trade receivables and current contract assets arising from revenue transactions. When elected, an entity may assume that current conditions at the balance sheet date will remain unchanged over the remaining life of the assets in developing its reasonable and supportable forecast; entities still adjust historical loss information to reflect current conditions, but they need not incorporate forward-looking macroeconomic forecasts for assets within scope.

The amendments in this ASU are effective for annual periods beginning after December 15, 2025. The Company adopted this standard prospectively in the fourth quarter of 2025 with an effective date of January 1, 2026 and has included the relevant disclosures within Note 1 – Summary of significant accounting policies to the Company's 2025 Annual Consolidated Financial Statements.

The following recent ASU issued by the Financial Accounting Standards Board (FASB) have an effective date after December 31, 2025 and have not been adopted by the Company:

ASU 2025-10 — Government Grants (Topic 832): Accounting for Government Grants Received by Business Entities

This ASU introduces comprehensive accounting guidance for government grants received by business entities by expanding Topic 832 beyond disclosure-only requirements to include recognition, measurement, presentation, and disclosure. The main provisions establish that government grants should not be recognized until it is probable that the Company will comply with the conditions attached to the grant and that the grant will be received. The ASU also provides guidance on accounting for grants related to income and grants related to assets, including acceptable presentation approaches, and introduces enhanced disclosure requirements intended to improve transparency and comparability of government grant information.

The amendments in this ASU are effective for annual periods beginning after December 15, 2028, including interim periods within these fiscal years. Early adoption is permitted. The amendments in this ASU may be adopted using a prospective, modified retrospective, or full retrospective transition approach, depending on the nature of the grants and the transition method elected.

The Company is evaluating the effects that the adoption of the ASU will have on its Consolidated Financial Statements and disclosures.

50 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

ASU 2025-06 – Intangibles - Goodwill and Other Internal-Use Software (Subtopic 350-40)

This ASU modernizes the accounting for internal-use software by removing references to prescriptive and sequential software development stages. The main provisions establish that capitalization begins when management authorizes and commits to funding the software project and it is probable the project will be completed and used as intended. The ASU also introduces enhanced disclosure requirements that align internal-use software disclosures to property, plant and equipment. It also consolidates guidance for website development by integrating it into the framework for internal-use software.

The amendments in this ASU are effective for annual periods beginning after December 15, 2027, including interim periods within these fiscal years. Early adoption is permitted. The amendments in this ASU must be adopted either prospectively, retrospectively or using a modified transition approach based on project status and prior capitalization.

The Company is evaluating the effects that the adoption of the ASU will have on its Consolidated Financial Statements and disclosures.

ASU 2024-03 – Disaggregation of Income Statement Expenses (Subtopic 220-40)

This ASU aims to provide stakeholders a clearer understanding of an entity's expenses and enhance their ability to assess performance, forecast expenses and evaluate the entity's potential for future cash flows. The ASU amends the rules on income statement expense disclosures and requires public business entities to disaggregate and disclose, in tabular format in the notes to financial statements, specified categories of expenses contained within certain income statement expense line items; to integrate certain amounts that were already required to be disclosed under current GAAP with the new disaggregation requirements and to qualitatively disclose descriptions of the amounts remaining that were not separately disaggregated. The ASU also requires public business entities to disclose the total amount of selling expenses and, in annual reporting periods, an entity's definition of those selling expenses. This ASU does not change or remove the current disclosure requirements of expense line items on the face of the Consolidated Statements of Income.

The amendments in this ASU are effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. Early adoption is permitted. The amendments in this ASU should be applied either prospectively to Consolidated Financial Statements issued for reporting periods following the effective date, or retrospectively to any or all prior periods presented in the Consolidated Financial Statements.

The Company is evaluating the effects that the adoption of the ASU will have on its Consolidated Financial Statements disclosures.

Other recently issued ASUs required to be applied on or after December 31, 2025 have been evaluated by the Company and are not expected to have a significant impact on the Company's Consolidated Financial Statements.

Critical accounting estimates

The preparation of financial statements in accordance with GAAP requires management to make estimates, judgments and assumptions that affect the reported amounts of revenues, expenses, assets and liabilities, and the disclosure of contingent assets and liabilities at the date of the financial statements. On an ongoing basis, management reviews its estimates based upon available information. Actual results could differ from these estimates. The Company's policies for income taxes, capital expenditures and depreciation and pensions require management's more significant judgments and estimates in the preparation of the Company's consolidated financial statements and, as such, are considered to be critical. The following information should be read in conjunction with the Company's 2025 Annual Consolidated Financial Statements and Notes thereto.

Management discusses the development and selection of the Company's critical accounting policies, including the underlying estimates and assumptions, with the Audit, Finance and Risk Committee of the Company's Board of Directors. The Audit, Finance and Risk Committee has reviewed the Company's related disclosures.

CN | 2025 Annual Report 51

MANAGEMENT'S DISCUSSION AND ANALYSIS

Income taxes

The Company follows the asset and liability method of accounting for income taxes. Under the asset and liability method, the change in the net deferred income tax asset or liability is included in the computation of Net income or Other comprehensive income (loss). Deferred income tax assets and liabilities are measured using enacted income tax rates expected to apply to taxable income in the years in which temporary differences are expected to be recovered or settled. As a result, a projection of taxable income is required for those years, as well as an assumption of the ultimate recovery/settlement period for temporary differences. The projection of future taxable income is based on management's best estimate and may vary from actual taxable income.

On an annual basis, the Company assesses the need to establish a valuation allowance for its deferred income tax assets, and if it is deemed more likely than not that its deferred income tax assets will not be realized, a valuation allowance is recorded. The ultimate realization of deferred income tax assets is dependent upon the generation of future taxable income, of the necessary character, during the periods in which those temporary differences become deductible. Management considers the scheduled reversals of deferred income tax liabilities, the available carryback and carryforward periods, and projected future taxable income in making this assessment. As at December 31, 2025, in order to fully realize all of the deferred income tax assets excluding the tax-deductible goodwill, the Company will need to generate future taxable income of approximately $3.3 billion, and, based upon the level of historical taxable income, projections of future taxable income of the necessary character over the periods in which the deferred income tax assets are deductible, and the reversal of taxable temporary differences, management believes, following an assessment of the current economic environment, it is more likely than not that the Company will realize the benefits of these deductible differences. Management believes it is more likely than not that CN will fully realize the benefits of the remaining $5.2 billion unamortized tax-deductible goodwill because under the current tax laws the Company has the ability and intent to maintain the necessary intercompany arrangements that will generate sufficient future taxable income of the appropriate character in the non-U.S. foreign jurisdiction, and to fully utilize the tax-deductible goodwill.

In addition, Canadian, or domestic, tax rules and regulations, as well as those relating to foreign jurisdictions, are subject to interpretation and require judgment by the Company that may be challenged by the taxation authorities upon audit of the filed income tax returns. Tax benefits are recognized if it is more likely than not that the tax position will be sustained on examination by the taxation authorities. As at December 31, 2025, the total amount of gross unrecognized tax benefits was $41 million, before considering tax treaties and other arrangements between taxation authorities. The amount of net unrecognized tax benefits as at December 31, 2025 was $25 million. If recognized, all of the net unrecognized tax benefits as at December 31, 2025 would affect the effective tax rate.

The Company's deferred income tax assets are mainly composed of temporary differences related to tax-deductible goodwill, net operating losses and tax credit carryforwards, lease liabilities, the pension liability, accruals for personal injury and other claims, other postretirement benefits liability, and compensation reserves. The Company's deferred income tax liabilities are mainly composed of temporary differences related to properties, the pension asset and operating lease right-of-use assets. These deferred income tax assets and liabilities are recorded at enacted tax laws and rates of the periods in which the related temporary differences are expected to reverse. As a result, fiscal budget changes and/or changes in income tax laws that affect a change in the timing, the amount, and/or the income tax rate at which the temporary difference components will reverse, could materially affect the Company. The reversal of temporary differences is expected at future-enacted income tax rates which could change due to fiscal budget changes and/or changes in income tax laws. As a result, a change in the timing and/or the income tax rate at which the components will reverse, could materially affect deferred income tax expense as recorded in the Company's results of operations. From time to time, the federal, provincial, and state governments enact new corporate income tax rates resulting in either lower or higher tax liabilities. A one-percentage-point change in the Canadian, U.S., and non-U.S. statutory federal tax rate would have the effect of changing the deferred income tax expense by $263 million, $164 million, and $52 million, respectively, in 2025. Deferred income taxes have not been recognized on temporary differences related to investments in foreign subsidiaries where the Company intends and is able to indefinitely reinvest the underlying earnings and it is not apparent that such differences will reverse in the foreseeable future.The Company has not determined the amount of the related unrecognized deferred income tax liability because such determination is not practicable.

For the year ended December 31, 2025, the Company recorded an income tax expense of $1,544 million, of which $334 million was a deferred income tax expense.

For the year ended December 31, 2024, the Company recorded an income tax expense of $1,404 million, of which $325 million was a deferred income tax expense.

For the year ended December 31, 2023, the Company recorded an income tax expense of $863 million, of which $288 million was a deferred income tax recovery. The deferred income tax recovery included a net recovery of $682 million resulting from tax filings consistent with a ruling

52 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

that the Company received in a non-U.S. foreign jurisdiction in connection with prior taxation years, comprised of a $767 million deferred income tax recovery related to the tax-deductible goodwill initially generated as of January 1, 2021, partly offset by a $85 million income tax expense related to the foregone tax deduction ($31 million for 2023 and $54 million for prior years) which was initially recorded in current taxes and was then reclassified to deferred taxes following the amortization of the tax-deductible goodwill for those years.

As at December 31, 2025, the Company had deferred income tax assets of $611 million (2024 - $689 million) and deferred income tax liabilities of $11,223 million (2024 - $10,874 million). Additional disclosures are provided in Note 7 – Income taxes to the Company's 2025 Annual Consolidated Financial Statements.

Capital expenditures and depreciation

Properties are carried at cost less accumulated depreciation including asset impairment write-downs. The Company has a process in place to determine whether or not costs qualify for capitalization, which requires judgment. The cost of properties, including those under finance leases, net of asset impairment write-downs, is depreciated on a straight-line basis over their estimated service lives, measured in years, except for rail and ballast whose services lives are measured in millions of gross tons. The Company follows the group method of depreciation whereby a single composite depreciation rate is applied to the gross investment in a class of similar assets, despite small differences in the service life or salvage value of individual property units within the same asset class. The Company uses approximately 40 different depreciable asset classes.

For all depreciable assets, the depreciation rate is based on the estimated service lives of the assets. Assessing the reasonableness of the estimated service lives of properties requires judgment and is based on currently available information, including periodic depreciation studies conducted by the Company. The Company's U.S. properties are subject to comprehensive depreciation studies as required by the STB and are conducted by external experts. Depreciation studies for Canadian properties are not required by regulation and are conducted internally. Studies are performed on specific asset groups on a periodic basis. Changes in the estimated service lives of the assets and their related composite depreciation rates are implemented prospectively.

The studies consider, among other factors, the analysis of historical retirement data using recognized life analysis techniques, and the forecasting of asset life characteristics. Changes in circumstances, such as technological advances, changes to the Company's business strategy, changes in the Company's capital strategy or changes in regulations can result in the actual service lives differing from the Company's estimates.

A change in the remaining service life of a group of assets, or their estimated net salvage value, will affect the depreciation rate used to amortize the group of assets and thus affect depreciation expense as reported in the Company's results of operations. A change of one year in the composite service life of the Company's fixed asset base would impact annual depreciation expense by approximately $74 million.

Depreciation studies are a means of ensuring that the assumptions used to estimate the service lives of particular asset groups are still valid and where they are not, they serve as the basis to establish the new depreciation rates to be used on a prospective basis. In 2025, the Company completed depreciation studies for track properties and as a result, the Company changed the estimated service lives for various types of track assets and their related composite depreciation rates. The results of these depreciation studies did not materially affect the Company's annual depreciation expense.

Given the nature of the railroad and the composition of its network which is made up of homogeneous long-lived assets, it is impractical to maintain records of specific properties at their lowest unit of property.

Retirements of assets occur through the replacement of an asset in the normal course of business, the sale of an asset or the abandonment of a section of track. For retirements in the normal course of business, generally the life of the retired asset is within a reasonable range of the expected useful life, as determined in the depreciation studies, and, as such, no gain or loss is recognized under the group method. The asset's cost is removed from the asset account and the difference between its cost and estimated related accumulated depreciation (net of salvage proceeds), if any, is recorded as an adjustment to accumulated depreciation and no gain or loss is recognized. The historical cost of the retired asset is estimated by using deflation factors or indices that closely correlate to the properties comprising the asset classes in combination with the estimated age of the retired asset using a first-in, first-out approach, and applying it to the replacement value of the asset.

In each depreciation study, an estimate is made of any excess or deficiency in accumulated depreciation for all corresponding asset classes to ensure that the depreciation rates remain appropriate. The excess or deficiency in accumulated depreciation is amortized over the remaining life of the asset class.

CN | 2025 Annual Report 53

MANAGEMENT'S DISCUSSION AND ANALYSIS

For retirements of depreciable properties that do not occur in the normal course of business, the historical cost, net of salvage proceeds, is recorded as a gain or loss in income. A retirement is considered not to be in the normal course of business if it meets the following criteria: (i) it is unusual, (ii) it is significant in amount, and (iii) it varies significantly from the retirement pattern identified through depreciation studies. A gain or loss is recognized in Other income for the sale of land or disposal of assets that are not part of railroad operations.

For the year ended December 31, 2025, the Company recorded total depreciation expense of $1,932 million (2024 - $1,885 million; 2023 - $1,811 million). As at December 31, 2025, the Company had Properties of $49,148 million, net of accumulated depreciation of $18,519 million (2024 - $47,960 million, net of accumulated depreciation of $18,962 million). Additional disclosures are provided in Note 11 – Properties to the Company's 2025 Annual Consolidated Financial Statements.

GAAP requires the use of historical cost as the basis of reporting in financial statements. As a result, the cumulative effect of inflation, which has significantly increased asset replacement costs for capital-intensive companies such as CN, is not reflected in operating expenses. Depreciation charges on an inflation-adjusted basis, assuming that all operating assets are replaced at current price levels, would be substantially greater than historically reported amounts.

Pensions benefits

The Company's plans have a measurement date of December 31.


In millions	As at December 31,	2025		2024
Pension asset		$	5,362	$	4,541
Pension liability		$	329	$	350

The descriptions in the following paragraphs pertaining to pensions relate generally to the Company's main pension plan, the CN Pension Plan, unless otherwise specified.

Calculation of net periodic benefit cost (income)

In accounting for pensions benefits, assumptions are required for, among other things, the discount rate, the expected long-term rate of return on plan assets, the rate of compensation increase, health care cost trend rates, mortality rates, employee early retirements, terminations and disability. Changes in these assumptions result in actuarial gains or losses, which are recognized in Other comprehensive income (loss). The Company generally amortizes these gains or losses into net periodic benefit cost (income) over the expected average remaining service life of the employee group covered by the plans only to the extent that the unrecognized net actuarial gains and losses are in excess of the corridor threshold, which is calculated as 10% of the greater of the beginning-of-year balances of the projected benefit obligation or market-related value of plan assets. The Company's net periodic benefit cost (income) for future periods is dependent on demographic experience, economic conditions and investment performance. Recent demographic experience has revealed no material net gains or losses on termination, retirement, disability and mortality. Experience with respect to economic conditions and investment performance is further discussed herein.

Net periodic benefit cost (income)


In millions	Year ended December 31,	2025		2024		2023
Net periodic benefit cost (income) for pensions		$	(418)	$	(360)	$	(393)

Projected pension benefit obligation


In millions	As at December 31,	2025		2024
Projected pension benefit obligation		$	13,556	$	14,244

Discount rate assumption

The Company's discount rate assumption, which is set annually at the end of each year, is determined by management with the aid of third-party actuaries. The discount rate is used to measure the single amount that, if invested at the measurement date in a portfolio of high-quality debt instruments with a rating of AA or better, would provide the necessary cash flows to pay for pension benefits as they become due. For the Canadian pension plans, future expected benefit payments are discounted using spot rates based on a derived AA corporate bond yield curve for each maturity year. A year-end discount rate of 4.88% based on bond yields prevailing at December 31, 2025 (2024 - 4.65%) was considered appropriate by the Company.

54 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

The Company uses the spot rate approach to measure current service cost and interest cost for all defined benefit pension plans. Under the spot rate approach, individual spot discount rates along the same yield curve used in the determination of the projected benefit obligation are applied to the relevant projected cash flows for current service cost at the relevant maturity. More specifically, current service cost is measured using the cash flows related to benefits expected to be accrued in the following year by active members of a plan and interest cost is measured using the projected cash flows making up the projected benefit obligation multiplied by the corresponding spot discount rate at each maturity. As at December 31, 2025, the rate to determine current service cost was 4.80% (2024 - 4.62%) and the rate to determine interest cost was 4.30% (2024 - 4.61%).

As at December 31, 2025, a 0.25% decrease in discount rates used to determine the projected benefit obligation, current service cost and interest cost would have resulted in a decrease of approximately $340 million to the funded status for pensions and would result in a decrease of approximately $13 million to the 2026 projected net periodic benefit income. A 0.25% increase in discount rates would have resulted in an increase of approximately $320 million to the funded status for pensions and would result in an increase of approximately $13 million to the 2026 projected net periodic benefit income.

Expected long-term rate of return assumption

The expected long-term rate of return is determined based on expected future performance for each asset class and is weighted based on the investment policy. Consideration is taken of the historical performance, the premium return generated from an actively managed portfolio, as well as current target asset allocations, published market return expectations, economic developments, inflation rates and administrative expenses. Based on these factors, the rate is determined by the Company. For 2025, the Company used a long-term rate of return assumption of 7.10% on the market-related value of plan assets to compute net periodic benefit cost (income). The Company has elected to use a market-related value of assets whereby realized and unrealized gains/losses and appreciation/depreciation in the value of investments are recognized over a period of five years, while investment income is recognized immediately. The market-related value is also subject to a corridor approach to not exceed 110% or be less than 90% of the fair value and any amount causing the market-related value to be outside the 10% corridor is recognized immediately in the market-related value of assets. In 2026, the Company will maintain the expected long-term rate of return of 7.10% reflecting management's current view of long-term investment returns.

The assets of the Company's various plans are primarily held in separate trust funds ("Trusts") which are diversified by asset type, geography, sector and investment strategy. Each year, the CN Board of Directors reviews and confirms or amends the Statement of Investment Policies and Procedures (SIPP) which includes the plans' long-term target asset allocation ("Policy") and related benchmark indices. This Policy is based on the long-term expectations of the economy and financial market returns and considers the dynamics of the plans' pension benefit obligations. In 2025, the Policy was amended to implement a target asset allocation change to resource and royalties, infrastructure and the specialty portfolio since the latter was terminated effective January 1, 2025. These changes were taken into account in the determination of the Company's expected long-term rate of return assumption. In 2025, the Policy was: 2% cash and short-term investments, 46% bonds, 2% emerging market debt, 3% private debt, 32% equities, 4% real estate, 6% resource and royalties, 5% infrastructure, 12% absolute return investments and negative 12% for funding.

Annually, the CN Investment Division ("Investment Manager"), a division of the Company created to invest and administer the assets of the plans, can also implement an investment strategy ("Strategy") which can lead the Plan's actual asset allocation to deviate from the Policy due to changing market risks and opportunities. The Pension Advisory Working Committee of the Board of Directors ("Committee") regularly compares the actual plan asset allocation to the Policy and Strategy and compares the actual performance of the Company's pension plan assets to the performance of the benchmark indices.

The Committee's approval is required for all major investments in illiquid securities. The SIPP allows for the use of derivative financial instruments to implement strategies, to hedge and to adjust existing or anticipated exposures. The SIPP prohibits investments in securities of the Company or its subsidiaries.


	2025		2024		2023		2022		2021
Actual	6.5	%	10.9	%	11.9	%	(14.2	%)	8.7	%
Market-related value	4.9	%	5.3	%	5.0	%	2.8	%	8.0	%
Expected	7.10	%	7.30	%	7.60	%	7.00	%	6.79	%

CN | 2025 Annual Report 55

MANAGEMENT'S DISCUSSION AND ANALYSIS

The Company's expected long-term rate of return on plan assets reflects management's view of long-term investment returns and the effect of a 1% variation in such rate of return would result in a change to the net periodic benefit cost (income) of approximately $110 million. Management's assumption of the expected long-term rate of return is subject to risks and uncertainties that could cause the actual rate of return to differ materially from management's assumption. There can be no assurance that the plan assets will be able to earn the expected long-term rate of return on plan assets.

Net periodic benefit income for pensions for 2026

In 2026, the Company expects net periodic benefit income to be approximately $458 million for all its defined benefit pension plans, as compared to actual net periodic benefit income of $418 million for the year ended December 31, 2025.

Plan asset allocation

Based on the fair value of the assets held as at December 31, 2025, the assets of the Company's various plans are comprised of 1% in cash and short-term investments, 48% in bonds, 2% in emerging market debt, 4% in private debt, 35% in equities, 3% in real estate, 8% in resource and royalties, 3% in infrastructure, 15% in absolute return investments and negative 19% in funding. See Note 17 – Pensions and other postretirement benefits to the Company's 2025 Annual Consolidated Financial Statements for additional information on the fair value measurements of such assets.

A significant portion of the plans' assets are invested in publicly traded equity securities whose return is primarily driven by stock market performance. Debt securities also account for a significant portion of the plans' investments and provide a partial offset to the variation in the pension benefit obligation that is driven by changes in the discount rate. The funded status of the plan fluctuates with market conditions and impacts funding requirements. The Company will continue to make contributions to the pension plans that as a minimum meet pension legislative requirements.

Rate of compensation increase

The rate of compensation increase is determined by the Company based upon its long-term plans for such increases. For 2025, a basic rate of compensation increase of 2.75% was used to determine the projected benefit obligation and the net periodic benefit cost (income).

Mortality

The Canadian Institute of Actuaries (CIA) published in 2014 a report on Canadian Pensioners' Mortality ("Report"). The Report contained Canadian pensioners' mortality tables and improvement scales based on experience studies conducted by the CIA. The CIA's conclusions and CN's periodic mortality experience studies were taken into account in selecting management's best estimate mortality assumption used to calculate the projected benefit obligation as at December 31, 2025, 2024 and 2023. In 2024, the CIA released a research report proposing a new mortality improvement scale. The CIA is now expected to release the new mortality tables in 2026 and at that time the Company will consider how the new improvement scale will interact with the new standard mortality tables to assess whether or not the adoption of the new mortality tables and scale would be more appropriate for its Canadian defined benefit plans. The CIA also issued guidance stating that the 2014 scale remains acceptable.

Funding of pension plans

The defined benefit component of the Company's main Canadian pension plan, the CN Pension Plan, accounts for 93% of the Company's pension obligation and can produce significant volatility in pension funding requirements, given the pension fund's size, the many factors that drive the plan's funded status, and Canadian statutory pension funding requirements. Adverse changes to the assumptions used to calculate the plan's funding status, particularly the discount rate used for funding purposes, as well as changes to existing federal pension legislation, regulation and guidance could significantly impact the Company's future contributions.

For accounting purposes, the funded status is calculated under generally accepted accounting principles for all pension plans. For funding purposes, the funded status is also calculated under going concern and solvency scenarios as prescribed under pension legislation and subject to guidance issued by the CIA and the Office of the Superintendent of Financial Institutions (OSFI) for all registered Canadian defined benefit pension plans. The Company's funding requirements are determined upon completion of actuarial valuations. Actuarial valuations are generally required on an annual basis for all Canadian defined benefit pension plans, or when deemed appropriate and as required by regulations by the OSFI. Actuarial valuations are also required annually for the Company's U.S. qualified defined benefit pension plans.

56 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

The Company's most recently filed actuarial valuations for funding purposes for its Canadian registered defined benefit pension plans conducted as at December 31, 2024 indicated a funding excess on a going concern basis of approximately $5.3 billion and a funding excess on a solvency basis of approximately $3.4 billion, calculated using the three-year average of the plans' hypothetical wind-up ratio in accordance with the Pension Benefit Standards Regulations, 1985. The federal pension legislation requires funding deficits, if any, to be paid over a number of years, as calculated under current pension regulations. Alternatively, a letter of credit can be subscribed to fulfill required solvency deficit payments.

Given the solvency ratio of certain Canadian registered defined benefit pension plans is above a specified threshold as at the last filed actuarial valuation, their next actuarial valuation for funding purposes would be required as at December 31, 2027, to be performed in 2028, although the valuation may be conducted earlier at the Company's discretion for those plans. Should the Company decide to use its discretion and file all valuations as at December 31, 2025 in 2026, they would be expected to identify a funding excess on a going concern basis of approximately $5.4 billion, while on a solvency basis a funding excess of approximately $4.2 billion is expected.

Based on the anticipated results of these valuations, the CN Pension Plan is expected to remain fully funded and at a level such that the Company would continue to be prohibited from making contributions to the defined benefit component of the CN Pension Plan in 2026. As such, total cash contributions of approximately $60 million are expected to be made in 2026 for all pension plans other than the defined benefit component of the CN Pension Plan. The Company expects cash from operations and its other sources of financing to be sufficient to meet its 2026 funding obligations.

Information disclosed by major pension plan


In millions	December 31, 2025	CN Pension Plan		BC Rail Pension Plan		U.S. and other plans		Total
Plan assets by category
Cash and short-term investments		$	152	$	4	$	2	$	158
Bonds		8,348		414		196		8,958

Emerging market debt		378		—		2		380
Private debt		795		—		4		799
Public equities		5,646		99		47		5,792
Private equities		762		—		4		766
Real estate		492		—		2		494
Resource and royalties		1,392		—		7		1,399
Infrastructure		519		—		2		521
Absolute returns		2,736		26		13		2,775
Derivative assets		96		5		1		102
Derivative liabilities		(33)		(6)		—		(39)
Total investments		21,283		542		280		22,105

Investment-related liabilities (1)		(3,551)		(50)		(18)		(3,619)
Other (2)		83		3		17		103
Total plan assets		$	17,815	$	495	$	279	$	18,589
Projected benefit obligation at end of year		$	12,603	$	349	$	604	$	13,556
Net employer contributions (withdrawals) in 2025 (3)		$	(31)	$	—	$	23	$	(8)
Employee contributions in 2025		$	59	$	—	$	—	$	59

(1)Investment-related liabilities include securities sold under repurchase agreements.

(2)Other consists of operating assets of $170 million and liabilities of $67 million required to administer the Trusts' investment assets and the plans' benefit and funding activities.

(3)Withdrawals reflect transfers of assets to fund the Company's contributions related to the defined contribution component of the CN Pension Plan following the merger.

Additional disclosures are provided in Note 17 – Pensions and other postretirement benefits to the Company's 2025 Annual Consolidated Financial Statements.

CN | 2025 Annual Report 57

MANAGEMENT'S DISCUSSION AND ANALYSIS

Business risks

In the normal course of business, the Company is exposed to various business risks and uncertainties that can have an effect on the Company's results of operations, financial position, or liquidity. While some exposures may be reduced by the Company's risk management strategies, many risks are driven by external factors beyond the Company's control or are of a nature which cannot be eliminated. The key areas of business risks and uncertainties described in this section are not the only ones that can affect the Company. Additional risks and uncertainties not currently known to management or that may currently not be considered material by management, could nevertheless also have an adverse effect on the Company's business.

Trade restrictions

The imposition of tariffs by the U.S. administration on imports from Canada and other countries combined with retaliatory tariffs by some countries, including Canada, on U.S. exports, present significant risks to global trade. These various tariffs and trade barriers could escalate costs for materials and fuel, adversely impact the demand for one or more commodities that we transport, disrupt supply chains and negatively affect demand for rail services. These tariffs and barriers, and any additional future trade actions taken by the U.S. and other countries in response, including the further escalation or implementation of tariffs or quotas or changes to certain trade agreements, could materially adversely impact the North American and global economies.

The global tariffs and ongoing trade actions taken by various governments and agencies globally are still in a state of uncertainty and subject to change thereby making their potential outcome difficult to assess in the medium and long-term. Such actions have adversely impacted demand for certain commodity groups and could continue to materially adversely affect demand for rail services which could materially and negatively impact the Company’s financial results.

Competition

The Company faces significant competition, including from rail carriers and other modes of transportation, and is also affected by its customers' flexibility to select among various origins and destinations, including ports, in getting their products to market. Specifically, the Company faces competition from Canadian Pacific Kansas City Limited (CPKC), which operates the other major rail system in Canada and services most of the same industrial areas, commodity resources and population centers as the Company; major U.S. railroads and other Canadian and U.S. railroads; long-distance trucking companies, transportation via the St. Lawrence-Great Lakes Seaway and the Mississippi River and transportation via pipelines. In addition, while railroads must build or acquire and maintain their rail systems, motor carriers and barges are able to use public rights-of-way that are built and maintained by public entities without paying fees covering the entire costs of their usage.

Competition is generally based on the quality and the reliability of the service provided, access to markets, as well as price. Factors affecting the competitive position of customers, including exchange rates and energy cost, could materially adversely affect the demand for goods supplied by the sources served by the Company and, therefore, the Company's volumes, revenues and profit margins. Factors affecting the general market conditions for the Company's customers can result in an imbalance of transportation capacity relative to demand. An extended period of supply/demand imbalance could negatively impact market rate levels for all transportation services, and more specifically the Company's ability to maintain or increase rates. This, in turn, could materially and adversely affect the Company's business, results of operations or financial position.

Previous consolidation of rail systems in the U.S. have resulted in larger rail systems that are in a position to compete effectively with the Company in numerous markets.

On July 19, 2025, Union Pacific Corporation (UP) and Norfolk Southern Corporation (NS) (the Applicants) entered into a merger agreement and announced their intention to create a U.S. transcontinental railroad and on December 19, 2025, filed an application with the STB requesting approval to combine the two railroads. On January 16, 2026, the STB rejected the application as incomplete and will allow the Applicants to submit a revised application. The Applicants have until June 22, 2026 to submit a revised application and, should the Applicants elect to refile, the Applicants must file a letter by February 17, 2026, indicating when they anticipate refiling. Upon resubmission, the STB will review the completeness of the filing. If the merger is ultimately approved by the STB, this could adversely and materially impact the Company's competitive position.

58 CN | 2025 Annual Report

MANAGEMENT'S DISCUSSION AND ANALYSIS

There can be no assurance that the Company will be able to compete effectively against current or future competitors in the transportation industry, or that further consolidation within the transportation industry and legislation allowing for more leniency in size and weight for motor carriers will not adversely affect the Company's competitive position. No assurance can be given that competitive pressures in transportation markets will not lead to reduced revenues, profit margins or both.

Environmental matters

The Company's operations are subject to numerous federal, provincial, state, municipal and local environmental laws and regulations in Canada and the U.S. concerning, among other things, emissions into the air; discharges into waters; the generation, handling, storage, transportation, treatment and disposal of waste, hazardous substances and other materials; decommissioning of underground and above ground storage tanks; and soil and groundwater contamination. A risk of environmental liability is inherent in railroad and related transportation operations; real estate ownership, operation or control; and other commercial activities of the Company with respect to both current and past operations. As a result, the Company incurs significant operating and capital costs, on an ongoing basis, associated with environmental regulatory compliance and clean-up requirements in its railroad operations and relating to its past and present ownership, operation or control of real property.

While the Company believes that it has identified the costs likely to be incurred for environmental matters in the next several years based on known information, the discovery of new facts, the participation and financial viability of other parties responsible for any such liability, future changes in laws, the possibility of releases of hazardous materials into the environment and the Company's ongoing efforts to identify potential environmental liabilities that may be associated with its properties may result in the identification of additional environmental liabilities and related costs.

In railroad and related transportation operations, it is possible that derailments or other accidents, including spills and releases of hazardous materials, may occur that could cause harm to human health or to the environment. In addition, the Company is also exposed to potential catastrophic liability risk, faced by the railroad industry in general, in connection with the transportation of toxic inhalation hazard materials such as chlorine and anhydrous ammonia, or other dangerous commodities such as crude oil and propane that the Company may be required to transport as a result of its common carrier obligations. Therefore, the Company may incur costs in the future, which may be material, to address any such harm, compliance with laws or other risks, including costs relating to the performance of clean-ups, payment of environmental penalties and remediation obligations, and damages relating to harm to individuals or property.

The environmental liability for any given contaminated site varies depending on the nature and extent of the contamination; the available clean-up techniques; evolving regulatory standards governing environmental liability; and the number of potentially responsible parties and their financial viability. As such, the ultimate cost of addressing known contaminated sites cannot be definitively established. Also, additional contaminated sites yet unknown may be discovered or future operations may result in accidental releases.

While some exposures may be reduced by the Company's risk mitigation strategies (including periodic audits, employee training programs, emergency plans and procedures, and insurance), many environmental risks are driven by external factors beyond the Company's control or are of a nature which cannot be completely eliminated. Therefore, there can be no assurance, notwithstanding the Company's mitigation strategies, that liabilities or costs related to environmental matters will not be incurred in the future or that environmental matters will not have a material adverse effect on the Company's results of operations, financial position or liquidity, or reputation.

Personal injury and other claims

In the normal course of business, the Company becomes involved in various legal actions seeking, among other remedies, compensatory and occasionally punitive damages, including actions brought on behalf of various purported classes of claimants and actions relating to employee and third-party personal injuries, occupational disease, and property damage, arising out of harm to individuals or property allegedly caused by, but not limited to, derailments or other accidents. The Company maintains provisions for such items, which it considers to be adequate for all of its outstanding or pending claims and benefits from insurance coverage for occurrences in excess of certain amounts. The final outcome with respect to actions outstanding or pending at December 31, 2025, or with respect to future claims, cannot be predicted with certainty, and therefore there can be no assurance that their resolution will not have a material adverse effect on the Company's results of operations, financial position or liquidity, in a particular quarter or fiscal year.

CN | 2025 Annual Report 59

MANAGEMENT'S DISCUSSION AND ANALYSIS

Labor negotiations

The working conditions of the Company's unionized workforce are governed by collective agreements which are negotiated from time to time. Disputes relating to the renewal of collective agreements have previously resulted in and could in the future potentially result in strikes, lockouts, slowdown of the business and ultimately loss of business. There can be no assurance that the Company will be able to renew and have its collective agreements ratified without a strike or lockout or that the resolution of these negotiations will not have a material adverse effect on the Company's results or financial position. Future labor agreements could increase labor and fringe benefits and related expenses.

Economic conditions

The Company is susceptible to changes in the economic conditions of the industries and geographic areas that produce and consume the freight it transports or the supplies it requires to operate. In addition, many of the goods and commodities carried by the Company experience cyclical demand. For example, the volatility in domestic and global energy markets could impact the demand for transportation services as well as impact the Company's fuel costs and surcharges, and such price variations could have a material adverse effect on the Company's results of operations. In addition, the volatility in other commodity markets such as coal and iron ore could have an impact on volumes. Many of the bulk commodities the Company transports move offshore and are affected more by global rather than North American economic conditions. Adverse North American and global economic conditions, or economic or industrial restructuring, that affect the producers and consumers of the commodities carried by the Company, including customer insolvency, may have a material adverse effect on the volume of rail shipments and/or revenues from commodities carried by the Company, and thus materially and negatively affect its results of operations, financial position, or liquidity. Moreover, supply chain disruptions in North America and internationally, including labor shortages or other services disruptions affecting trucking, ports, handling facilities, customer facilities or other railroads, may adversely affect volumes of goods and timelines, and therefore adversely affect CN’s operations and financial results. The imposition of tariffs by countries can also present significant risks to global trade and have a significant impact on North American and global economic conditions. See the section of this MD&A entitled Business risks - Trade restrictions for additional information on trade restrictions risks.

Regulation

The Company is subject to regulatory and legislative initiatives in the operation of its business.

Economic regulation – Canada

The Company's rail operations in Canada are subject to economic regulation by the Canadian Transportation Agency (CTA) under the Canada Transportation Act, which provides rate and service remedies, including final offer arbitration, long-haul interswitching rates and mandatory interswitching. The CTA also regulates the maximum revenue entitlement for the movement of regulated grain, charges for railway ancillary services, railway crossing and noise-related disputes, and discontinuance of service over a rail line. In addition, various Company business transactions must gain prior regulatory approval, with attendant risks and uncertainties, and the Company is subject to government oversight with respect to rate, service and business practice issues.

Economic regulation – U.S.

The Company's U.S. rail operations are subject to economic regulation by the STB. The STB serves as both an adjudicatory and regulatory body and has exclusive jurisdiction over certain railroad rate and service issues and rail restructuring transactions such as mergers, line sales, line construction and line abandonments. As such, various Company business transactions must gain prior regulatory approval and aspects of its pricing and service practices may be subject to challenge, with attendant risks and uncertainties.

Safety regulation – Canada

The Company's rail operations in Canada are subject to safety regulation by the Minister under the Railway Safety Act (RSA) as well as the rail portions of other safety-related statutes, which are administered by Transport Canada (TC). TC is also empowered to conduct inspections, investigate, and enforce safety regulations under the RSA. The Company is often required to submit information to TC in compliance with regulations, including applications for a railway operating certificate.

In addition, CN may be legally required to transport dangerous goods and hazardous materials, including toxic inhalation hazard materials as a result of its common carrier obligations and, as such, is also subject to additional regulatory oversight in Canada under the Transportation of Dangerous Goods Act (TDGA), which is also administered by TC. The TDGA establishes the safety requirements for the transportation of goods classified as dangerous and enables the adoption of regulations for security training and screening of personnel working with dangerous goods, as well as the development of a program to require a transportation security clearance for dangerous goods, the tracking of dangerous goods during transport and the development of an emergency response plan.

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MANAGEMENT'S DISCUSSION AND ANALYSIS

Safety regulation – U.S.

The Company's U.S. rail operations are subject to safety regulation by the FRA under the Federal Railroad Safety Act as well as rail portions of other safety statutes, with the transportation of hazardous commodities also governed by regulations promulgated by the Pipeline and Hazardous Materials Safety Administration (PHMSA). PHMSA requires carriers operating in the U.S. to report annually the volume and route-specific data for cars containing hazardous commodities; conduct a safety and security risk analysis for each used route; identify a commercially practicable alternative route for each used route; and select for use the practical route posing the least safety and security risk. In addition, the Transportation Security Administration (TSA) requires rail carriers to provide upon request, location and shipping information on cars on their networks containing toxic inhalation hazard materials and certain radioactive or explosive materials; and ensure the secure, attended transfer of all such cars to and from shippers, receivers and other carriers that will move from, to, or through designated high-threat urban areas.

Regulation – Vessels

CN's vessel operations are subject to regulation by the U.S. Coast Guard and the Department of Transportation, Maritime Administration, which regulate the ownership and operation of vessels operating on the Great Lakes and in U.S. coastal waters. In addition, in the U.S., the Environmental Protection Agency regulates air emissions from these vessels.

Security

The Company is subject to statutory and regulatory directives in the U.S. addressing homeland security concerns. In the U.S., the TSA regulates transportation security, which is part of the U.S. Department of Homeland Security (DHS) and PHMSA, which, like the FRA, is part of the U.S. Department of Transportation. Border security falls under the jurisdiction of U.S. Customs and Border Protection (CBP), which is part of the DHS. In Canada, the Company is subject to regulation by the Canada Border Services Agency (CBSA). Matters related to agriculture-related shipments crossing the Canada/U.S. border also fall under the jurisdiction of the U.S. Department of Agriculture (USDA) and the Food and Drug Administration (FDA) in the U.S. and the Canadian Food Inspection Agency (CFIA) in Canada. More specifically, the Company is subject to:

•border security arrangements, pursuant to an agreement the Company and CPKC entered into with the CBP and the CBSA;

•the CBP's Customs-Trade Partnership Against Terrorism (C-TPAT) program and designation as a low-risk carrier under CBSA's Customs Self-Assessment (CSA) program;

•regulations imposed by the CBP requiring advance notification by all modes of transportation for all shipments into the U.S. The CBSA is also working on similar requirements for Canada-bound traffic;

•inspection for imported fruits and vegetables grown in Canada and the agricultural quarantine and inspection (AQI) user fee for all traffic entering the U.S. from Canada; and

•gamma ray screening of cargo entering the U.S. from Canada, and potential security and agricultural inspections at the Canada/U.S. border.

The Company has worked with the Association of American Railroads (AAR) to develop and put in place an extensive industry-wide security plan to address terrorism and security-driven efforts by state and local governments seeking to restrict the routings of certain hazardous materials.

While the Company will continue to work closely with the CBSA, CBP, and other Canadian and U.S. agencies, as described above, no assurance can be given that these and future decisions by the U.S., Canadian, provincial, state, or local governments on homeland security matters, legislation on security matters enacted by the U.S. Congress or Parliament, or joint decisions by the industry in response to threats to the North American rail network, will not materially adversely affect the Company's results of operations, or its competitive and financial position.

Transportation of hazardous materials

As a result of its common carrier obligations, the Company is legally required to transport dangerous goods and hazardous materials, including toxic inhalation hazard materials regardless of risk or potential exposure or loss. A train accident involving the transport of these commodities could result in significant costs and claims for personal injury, property damage, environmental penalties and remediation in excess of insurance coverage for these risks, which may materially adversely affect the Company's results of operations, or its competitive and financial position.

No assurance can be given that these and any other current or future regulatory or legislative initiatives by the Canadian or U.S. federal government and agencies will not materially adversely affect the Company's results of operations or its competitive and financial position.

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MANAGEMENT'S DISCUSSION AND ANALYSIS

Pandemic risk

Severe disruptions in regional economies and the world economy can be caused by the outbreak of a contagious illness, such as the COVID-19 pandemic. Such pandemics and efforts to contain them could result in international, national and local border closings, travel restrictions, significant disruptions to business operations, supply chains, customer activity and demand, service cancellations, reductions and other changes, significant challenges in healthcare service preparation and delivery, and quarantines, as well as considerable general concern and uncertainty, all of which could negatively affect the economic environment and may have significant, lasting impacts, as was the case for the COVID-19 pandemic. It is not possible to predict what measures and restrictions may be imposed by governmental authorities, the period of time during which those measures and restrictions may apply or the extent of the impact thereof on the Company's business and operations. Economic and supply chain disruptions, including temporary staff shortages resulting from a pandemic, could further materially affect the Company's financial results and operations. A pandemic could also further and significantly impact freight demand and commodity prices in connection with ensuing economic disruption, supply shortages, trade disruption, temporary staff shortages and temporary closures of facilities in geographic locations more importantly impacted by the outbreak. The scope and severity of such disruptions and their impact on the Company's financial results and operations are unpredictable and could be material.

Pension funding volatility

The Company's funding requirements for its defined benefit pension plans are determined using actuarial valuations. See the section of this MD&A entitled Critical accounting estimates – Pensions for information relating to the funding of the Company's defined benefit pension plans. Adverse changes with respect to pension plan returns and the level of interest rates as well as changes to existing federal pension legislation and regulation may significantly impact future pension contributions and have a material adverse effect on the funding status of the plans and the Company's results of operations.

There can be no assurance that the Company's pension expense and funding of its defined benefit pension plans will not increase in the future and thereby negatively impact earnings and/or cash flow.

Reliance on technology and related cybersecurity risk

The Company relies on information technology operated by it or under the control of third parties in all aspects of its business. The Company’s and its key third-party vendors’ information technology systems are critical to its ability to safely and effectively meet customer expectations, track, maintain, and operate trains and related vehicles, manage employees, and interface with customers, suppliers, vendors, and other third parties.

The Company’s cybersecurity risk management and governance program is an integral part of the Company’s overall risk management strategy. The Company has adopted a risk-based cybersecurity plan consistent with industry standards and relevant regulatory requirements imposed by U.S. or Canadian regulators. The Company’s cybersecurity risk management program utilizes the National Institute of Standards and Technology (NIST) Cybersecurity Framework (CSF) as guidance, implements technology to mitigate cybersecurity risks, and conducts periodic risk assessments, penetration testing by third-party consultants, and employee training. The Company’s cybersecurity risk management program also includes ongoing threat research and analysis conducted with the assistance of third-party experts, including on emerging cyber threat attack vectors, tactics, actors, and motivations.

The Company and its third-party vendors and service providers have been subject to, and are likely to continue to be the target of or subject to, data breaches, cyber-attacks, information technology disruptions, and other similar incidents. These incidents may include, among other things, malware, ransomware, distributed denial of service attacks, social engineering, phishing, theft, malfeasance or improper access by employees or third-party vendors, system failures, disruptions or outages caused by human error, fraud, or other modes of attack or disruption. Security threats continue to grow, are increasing in frequency, levels of persistence, intensity and sophistication, and can come from nation states, organized criminals, hacktivists and others. The Company and its third-party vendors and service providers are at heightened risk due to the Company’s position as part of both the Canadian and U.S. critical infrastructure and may be impacted by cyber-attacks or security incidents, whether accidental or malicious. The Company has security and mitigation programs in place, including cyber incident response, business continuity, and disaster recovery plans to protect its operations and its information technology and operational assets. However, a cyber-attack, significant disruption, or failure could affect either the Company's own information technology and communications systems or those of its third-party vendors or service providers. Such incidents, including system failure, security breach, disruption by malware, or other damage, could have serious consequences. These consequences could include interrupted or delayed operations, service interruptions, safety failures, security violations, regulatory compliance failures, other operational difficulties, damaged reputation, loss of customers, vendors, suppliers, agents, or third-party capacity providers, misappropriation of assets, misuse or corruption of critical data and proprietary information, and unauthorized system and data access or disclosures. Moreover, the Company may experience security breaches that could remain undetected for an

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MANAGEMENT'S DISCUSSION AND ANALYSIS

extended period and, therefore, have a greater impact on the services provided. A cyber incident or interruption of information or operational technology systems, even for short periods of time, could expose the Company to a risk of loss, litigation, regulatory oversight, enforcement actions, damage to its reputation or cause it to incur significant time and expense to remedy such an event, any of which could have a material adverse impact on its operational and financial position or incur significant expenses in excess of available cybersecurity coverage. While the Company maintains cybersecurity insurance, if such an event were to take place, the Company may suffer losses beyond the scope of, or in excess of the limits of, its existing cybersecurity insurance coverage.

Cybersecurity and data protection laws and regulations continue to evolve, and are increasingly demanding, both in the U.S. and Canada, which adds compliance complexity and may increase the Company’s costs of compliance and expose it to reputational damage or litigation, monetary damages, regulatory enforcement actions, or fines. The Company has invested and continues to invest in technology security initiatives, information technology risk management, cyber incident response, business continuity and disaster recovery plans, and other security and mitigation programs to meet evolving network and cybersecurity expectations and regulations. The development and maintenance of these measures is costly and requires ongoing monitoring and updating as technologies change and malicious cyber actors' efforts to overcome security measures become increasingly more frequent, intense, and sophisticated. Despite the Company’s efforts, however, it remains subject to the risk of cyber-attacks that could have a material adverse impact on its operational and financial position.

In addition, if the Company is unable to acquire or effectively implement new technology, including artificial intelligence, it may suffer a competitive disadvantage within the rail industry and with companies providing other modes of transportation service, which could also have an adverse effect on its operational and financial position.

Terrorism and international conflicts

Potential terrorist actions can have a direct or indirect impact on transportation infrastructure, including railway infrastructure in North America, and can interfere with the free flow of goods. Rail lines, facilities and equipment could be directly targeted or become indirect casualties of such acts. International conflicts, including war, can also have an impact on the Company's markets. Government response to such events could adversely affect the Company's operations. Insurance premiums could also increase significantly or coverage could become unavailable.

Customer credit risk

In the normal course of business, the Company monitors the financial condition and credit limits of its customers and reviews the credit history of each new customer. Although the Company believes there are no significant concentrations of credit risk, economic conditions can affect the Company's customers and can result in an increase to the Company's credit risk and exposure to the business failures of its customers. A widespread deterioration of customer credit and/or business failures of customers could have a material adverse effect on the Company's results of operations, financial position or liquidity.

Liquidity

Disruptions in financial markets or deterioration of the Company's credit ratings could hinder the Company's access to external sources of funding to meet its liquidity needs. There can be no assurance that changes in the financial markets will not have a negative effect on the Company's liquidity and its access to capital at acceptable terms and rates.

Supplier concentration

The Company operates in a capital-intensive industry where the complexity of rail equipment (including rolling stock equipment, locomotives, rail and ties) limits the number of suppliers available. The Company also competes with other industries for available capacity and raw materials used in the production of locomotives and certain rail and rolling stock equipment. The supply market could be disrupted if changes in circumstances caused any of the Company's suppliers to cease production or to experience capacity or supply shortages. The supply market could become further concentrated and could result in changes to the product or service offerings by suppliers. This could also result in cost increases to the Company and difficulty in obtaining and maintaining the Company's rail equipment and materials. Since the Company also has foreign suppliers, international relations, trade restrictions and global economic and other conditions may potentially interfere with the Company's ability to procure necessary equipment and materials. Widespread business failures of, or restrictions on suppliers, could have a material adverse effect on the Company's results of operations or financial position.

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MANAGEMENT'S DISCUSSION AND ANALYSIS

Availability of qualified personnel

The Company may experience demographic challenges in the employment levels of its workforce. Changes in employee demographics, changes in regulation, training requirements and the availability of qualified personnel, particularly locomotive engineers and conductors and information technologists, could negatively impact the Company's ability to meet demand for rail service. The Company monitors employment levels and seeks to ensure that there is an adequate supply of personnel to meet rail service requirements. However, the Company's efforts to attract and retain qualified personnel may be hindered by specific conditions in the job market. No assurance can be given that these challenges will not materially adversely affect the Company's results of operations or its financial position.

Fuel costs and supply disruptions

The Company is susceptible to the volatility of fuel prices due to changes in the economy or supply disruptions. Rapid fluctuations in fuel prices or fuel supply disruptions can occur due to refinery disruptions, production quota restrictions, increased demand in existing or emerging foreign markets, climate, international politics, environmental and sustainability policies, labor and political instability, as well as war. Increases in the cost of transportation or supply disruptions may materially adversely affect the Company's results of operations, financial position or liquidity.

Foreign exchange

The Company conducts its business in both Canada and the U.S. and as a result, is affected by currency fluctuations. Changes in the exchange rate between the Canadian dollar and other currencies (including the US dollar) make the goods transported by the Company more or less competitive in the world marketplace and thereby may adversely affect the Company's revenues and expenses.

Interest rates

The Company is exposed to interest rate risk relating to the Company's debt. The Company mainly issues fixed-rate debt, which exposes the Company to variability in the fair value of the debt. The Company also issues debt with variable interest rates, which exposes the Company to variability in interest expense. Adverse changes to market interest rates may significantly impact the fair value or future cash flows of the Company's financial instruments. There can be no assurance that changes in the market interest rates will not have a negative effect on the Company's results of operations or liquidity.

Transportation network disruptions

Due to the integrated nature of the North American freight transportation infrastructure, the Company's operations largely depend on a functioning transportation network in the jurisdictions in which it operates and on the Company's ability to maintain cooperative relationships with connecting carriers. The Company may be negatively affected by service disruptions of its own network, including as a result of illegal blockades, severe weather events or labor interruptions, as well as of other transportation links such as ports and other railroads which interchange with the Company. A significant prolonged service disruption of CN's network or the network of one or more of these entities could have an adverse effect on the Company's results of operations, financial position or liquidity and any deterioration in the cooperative relationships with the Company's connecting carriers could directly affect the Company's operations.

Severe weather

The Company's success is dependent on its ability to operate its railroad efficiently. Changing climate conditions, severe weather and natural disasters, such as extreme cold or heat, significant precipitation, flooding, droughts, fires, hurricanes, tropical storms, tornadoes, landslides, avalanches, earthquakes and rising sea levels, have in the past caused, and could in the future again cause, disruptions to our operations, including as a result of track outages and other service interruptions, evacuation of our workforce, and to the operations of our customers, and severe damage to the Company's infrastructure or properties. Impacts from these types of events are highly variable, based on the severity and length of the event and scope of network impact, and changes in weather patterns caused by climate change are expected to increase the frequency, severity or duration of certain adverse weather conditions. Business interruptions resulting from severe weather have in the past caused, and could in the future again result in increased costs, including modifications to existing infrastructure or implementation of new infrastructure to prevent or reduce severity of future impacts to the Company's business, and increased liabilities and lower revenues, which could have a material adverse effect on the Company's results of operations, financial condition or liquidity. If any natural occurrence leads to catastrophic interruption of service, the Company may not be able to restore service without a significant interruption in operations.

Insurance maintained by the Company to protect against loss of business and other related consequences resulting from these natural occurrences is subject to coverage limitations, depending on the nature of the risk insured. This insurance may not be sufficient to cover all of the Company's damages or damages to others, and may not continue to be available at commercially reasonable rates.

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MANAGEMENT'S DISCUSSION AND ANALYSIS

Climate change

Market changes

The Company’s business is based on transporting a wide variety of commodities from suppliers to the marketplace. The Company regularly transports energy commodities that serve refineries, processing locations, and end-users across North America and global markets. The Company’s business lines include thermal and metallurgical coal, crude oil and petroleum products, including liquefied petroleum gas, fuel oil, asphalt, gasoline, condensate (diluent), and lubricant oils. Shifting consumer demand to lower-carbon products and increased climate-focused regulations, such as carbon pricing and fuel regulations, may bring about a broad transition in the energy sector. Programs that place a price on carbon emissions or other government restrictions on certain market sectors may further impact current and potential freight rail customers in the energy sector. A comprehensive transition in the energy sector could significantly impact the markets of the Company's energy customers or lead to market differentiation through geographic variation in policies and demand trends. A portion of the Company’s business could be materially affected by potential future changes and instability of such a transition. Government incentives encouraging the use of alternative sources of energy also could affect certain of the Company's customers and the markets for certain of the commodities it carries in a manner that could alter our traffic patterns. Climate change could affect the markets for, or the volume of, the goods the Company carries or otherwise have a material adverse effect on the Company's results of operations, financial positions or liquidity.

Legislative and regulatory response to climate change

Government action or inaction to address climate change could also affect CN. The Company is currently subject to climate change and other emissions-related laws and regulations at the federal, provincial and state levels in the jurisdictions in which it operates. While CN is continually focused on efficiency improvements and reducing its carbon footprint, cap and trade systems, carbon taxes, or other controls on emissions of greenhouse gases imposed by various government bodies could increase the Company's capital and operating costs. An escalating price on carbon emissions could materially increase direct costs related to fuel purchases and indirect expenses related to purchased goods, materials, and electricity required to operate our business. The Company may not be able to offset such impacts through, for example, higher freight rates.

The Company expects climate-related legislation and regulation to continue to rapidly evolve. The adoption of new climate-related legislation and/or regulations, or changes to existing climate-related legislation and/or regulation, could result in increased compliance risk and costs for the Company. In addition, while the Company endeavors to comply with applicable legislative and regulatory requirements, there is uncertainty around the impact of existing and proposed climate-related laws and regulations on the Company's business and operations, such that the Company may be subject to increased legal costs related to defending and resolving legal claims and other litigation related to climate change. Climate change legislation and regulation could also affect CN's customers and make it difficult for CN's customers to produce products in a cost-competitive manner due to increased energy costs, which could, in turn, impact demand for CN's services and have a material adverse effect on the Company's performance.

Reputation

The Company has a well-recognized brand that our customers associate with quality and safe transportation services. Failure to maintain quality, ethical and socially responsible operations across the Company's supply chain could materially adversely affect its brand and reputation. Public concerns about the environmental impact of the Company’s operations could also negatively impact consumers’ perceptions of the Company’s brand and reputation. Any negative publicity about, or significant damage to, the Company’s brand and reputation could have an adverse impact on customer perception and confidence, which could materially adversely affect the Company's results of operations or its financial position. Also, the pervasiveness and viral nature of social media could exacerbate any negative publicity with respect to the Company's business practices.

Moreover, increasing governmental and public awareness and concern about ESG matters, notably climate change, sustainability, diversity and Indigenous relations, could result in enhanced legal requirements or public expectations, in each case, that aim or require to expand the nature, scope and complexity of matters that the Company is required to control, assess, comply with or report, which could, in turn, increase the Company's compliance costs. In addition, if the Company is unable to meet evolving requirements and/or expectations, our brand and reputation could be negatively impacted, which could in turn materially adversely affect the Company's results of operations or its financial position. The Company's access to capital could also be negatively affected if financial institutions, rating agencies and/or lenders adopt more restrictive ESG policies that the Company may not be able to meet.

CN | 2025 Annual Report 65

MANAGEMENT'S DISCUSSION AND ANALYSIS

CN has also set a number of specific climate goals and regularly discloses these goals and our progress thereon. Achieving these goals is subject to several risks and uncertainties. There can be no certainty that the Company will achieve these goals, or any future climate goals it may establish, or that achieving any of these goals will meet all of the expectations of its stakeholders. Risk factors that may impact the Company’s ability to achieve its climate goals include, but are not limited to: changes in carbon markets; evolving sustainability strategies and scientific, methodological or technological developments, including future investments in and the availability of GHG emissions-reduction tools and technologies; shifts in the science, data, methodology and legal and financial considerations underlying our climate and sustainability-related analysis and strategy, including those developed and used by organizations such as SBTi; the ability of the Company to successfully implement its climate and sustainability-related strategies and initiatives (including actions and plans undertaken by the Company to reduce GHG emissions); significant changes in the Company's GHG emissions profile as a result of changes to its railway asset base; the Company's ability to work with governments and third parties to mitigate the impacts of climate change; domestic and international economic conditions, including exchange rates; the effects of competition and regulation; uncertainties in the financial markets; capital spending; actions of vendors; the willingness of customers to acquire our services; cost of network expansion; maintenance and retrofits; and physical impact of climate change on our business. Also, the implementation of these objectives may expose the Company to certain additional heightened financial and operational risks, and is expected to require additional costs, which may be higher than anticipated. In addition, the accuracy, consistency and usefulness of climate or sustainability-related data (including data underlying our current or future goals and their baselines) could be impacted by a number of factors, including the accuracy of the assumptions in the science-based methodology used to calculate this data, improvement in our data collection and measuring systems, activities such as joint ventures, mergers and acquisitions or divestitures, and industry-driven changes to methodologies. If the Company is unable to achieve its climate goals or satisfy the expectations of its stakeholders, its brand and reputation could be materially and adversely affected, which could in turn materially adversely affect the Company's results of operations or its financial position.

Controls and procedures

The Company's Chief Executive Officer and its Chief Financial Officer, after evaluating the effectiveness of the Company's disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) as of December 31, 2025, have concluded that the Company's disclosure controls and procedures were effective.

During the fourth quarter ended December 31, 2025, there were no changes in the Company's internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) that materially affected, or are reasonably likely to materially affect, the Company's internal control over financial reporting.

As of December 31, 2025, management has assessed the effectiveness of the Company's internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) using the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission in Internal Control – Integrated Framework (2013). Based on this assessment, management has determined that the Company's internal control over financial reporting was effective as of December 31, 2025, and issued Management's Report on Internal Control over Financial Reporting dated February 4, 2026 to that effect.

66 CN | 2025 Annual Report

Source: View Original Filing on SEC EDGAR

FAQ

How did Canadian National Railway (CNI) perform financially in 2025?

Canadian National Railway grew 2025 revenues to $17,304 million, up 2% from 2024, with operating income rising 5% to $6,587 million. Net income reached $4,720 million, a 6% increase, and diluted EPS climbed 8% to $7.57, reflecting improved margins and cost control.

What were Canadian National Railway’s key profitability and cash flow metrics for 2025?

Profitability improved with an operating ratio of 61.9%, better than 63.4% in 2024, and adjusted operating ratio of 61.7%. Free cash flow was $3,336 million, up 8%, supported by $7,049 million of net cash from operating activities and disciplined investment and share repurchase programs.

How is Canadian National Railway (CNI) returning capital to shareholders?

In 2025, Canadian National Railway spent $2,047 million on share repurchases and declared dividends of $3.55 per share. For 2026, the board approved a new normal course issuer bid for up to 24.0 million shares and increased the quarterly dividend by 3% to $0.9150 per share.

What are Canadian National Railway’s major investment plans for 2026?

Canadian National Railway expects to invest about $2.8 billion in 2026 capital expenditures, net of customer reimbursements. These investments focus on safety, efficiency, and network integrity, while also supporting capacity growth and decarbonization initiatives, and are to be funded through operations and financing activities.

How did volumes and operating efficiency trend for Canadian National Railway in 2025?

Revenue ton miles rose 1% to 238,159 million, and gross ton miles increased 1% to 463,002 million. Train length and weight both improved slightly, while fuel efficiency remained strong at 0.873 gallons per 1,000 GTMs. Network speed, dwell, and car velocity were marginally weaker year over year.

What safety performance did Canadian National Railway report for 2025?

The injury frequency rate improved to a record 0.96 per 200,000 person hours in 2025, down from 1.07. However, the accident rate increased to 1.84 per million train miles from 1.69, indicating mixed safety trends even as the company continues investing in technology, training, and culture initiatives.

What strategic or regulatory developments affected Canadian National Railway recently?

Canadian National Railway consolidated the Iowa Northern Railway as of March 1, 2025, recognizing a $24 million remeasurement gain. In U.S. regulation, the Seventh Circuit vacated the STB’s reciprocal switching rule in 2025, and the STB later proposed replacing existing reciprocal switching regulations with case‑by‑case adjudication.

Earnings climb as Canadian National (NYSE: CNI) lifts buybacks

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