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[10-Q] CLEAN HARBORS INC Quarterly Earnings Report

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
10-Q
Rhea-AI Filing Summary

Clean Harbors (CLH) reported Q3 2025 results with total revenues of $1,549,337 thousand, slightly above last year. Income from operations was $193,009 thousand and net income was $118,799 thousand, resulting in diluted EPS of $2.21. Service revenues grew year over year, while product revenues declined.

Segment mix showed Environmental Services at $1,318,580 thousand and Safety‑Kleen Sustainability Solutions at $230,757 thousand. Within SKSS, Safety‑Kleen Oil revenue was $154,156 thousand versus $182,001 thousand a year ago.

Cash and balance sheet: cash and cash equivalents were $759,197 thousand; net cash from operating activities for the first nine months was $511,632 thousand. Long‑term debt (carrying value) was $2,764,231 thousand.

Post‑quarter financing: the company issued $745,000 thousand of 5.750% senior notes due 2033 and entered into $1,260,000 thousand of new term loans to refinance existing secured term loans and intends to redeem $545,000 thousand of 4.875% notes due 2027. Shares outstanding were 53,431,835 as of October 24, 2025.

Positive
  • None.
Negative
  • None.

Insights

Solid cash generation; debt stack extended via mixed refinancing.

Clean Harbors delivered Q3 revenue of $1,549,337,000 and diluted EPS of $2.21. Year to date, operating cash flow reached $511,632,000, supporting capex and buybacks while maintaining ample liquidity.

After quarter-end, the company issued $745,000,000 at 5.750% due 2033 and added $1,260,000,000 in new term loans maturing 2032. Proceeds refinance secured term loans and the company plans to redeem $545,000,000 of 2027 notes, which reshapes maturities and fixes a portion of interest cost.

The filing notes $473,300,000 of revolver availability and cash of $759,197,000. Actual interest expense and cash interest will depend on base rates and swaps; the company maintains $600,000,000 of swaps through 2027.

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Table of Contents
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
_______________________
FORM 10-Q
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
FOR THE QUARTERLY PERIOD ENDEDSEPTEMBER 30, 2025
OR
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
FOR THE TRANSITION PERIOD FROM         TO       
Commission File Number 001-34223
_______________________
CH Logo_RED_rgb.jpg
CLEAN HARBORS, INC.
(Exact name of registrant as specified in its charter)
Massachusetts04-2997780
(State or Other Jurisdiction of Incorporation or Organization)(IRS Employer Identification No.)
42 Longwater DriveNorwellMA02061-9149
(Address of Principal Executive Offices)(Zip Code)
Registrant’s Telephone Number, Including area code: (781) 792-5000
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading SymbolName of each exchange on which registered
Common Stock, $0.01 par valueCLHNew York Stock Exchange
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days. Yes   No 
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes    No 
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “merging growth company” in Rule 12b-2 of the Exchange Act. (Check one):
Large accelerated filerAccelerated filer
Non-accelerated filerSmaller reporting company
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
Indicate by check mark whether the registrant is a shell company (as defined by Rule 12b-2 of the Exchange Act). Yes   No 
The number of shares of Common Stock, $0.01 par value, of the registrant outstanding at October 24, 2025 was 53,431,835.



CLEAN HARBORS, INC.
QUARTERLY REPORT ON FORM 10-Q
TABLE OF CONTENTS
Page No.
PART I: FINANCIAL INFORMATION
ITEM 1: Unaudited Consolidated Financial Statements
Consolidated Balance Sheets
1
Unaudited Consolidated Statements of Operations
2
Unaudited Consolidated Statements of Comprehensive Income
3
Unaudited Consolidated Statements of Cash Flows
4
Unaudited Consolidated Statements of Stockholders’ Equity
5
Notes to Unaudited Consolidated Financial Statements
7
ITEM 2: Management’s Discussion and Analysis of Financial Condition and Results of Operations
24
ITEM 3: Quantitative and Qualitative Disclosures About Market Risk
36
ITEM 4: Controls and Procedures
36
PART II: OTHER INFORMATION
ITEM 1: Legal Proceedings
38
ITEM 1A: Risk Factors
38
ITEM 2: Unregistered Sales of Equity Securities and Use of Proceeds
38
ITEM 3: Defaults Upon Senior Securities
38
ITEM 4: Mine Safety Disclosures
38
ITEM 5: Other Information
38
ITEM 6: Exhibits
39
Signatures
40




Table of Contents
CLEAN HARBORS, INC. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
(in thousands)
September 30, 2025December 31, 2024
ASSETS(unaudited)
Current assets:
Cash and cash equivalents$759,197 $687,192 
Short-term marketable securities91,176 102,634 
Accounts receivable, net of allowances aggregating $43,778 and $47,242, respectively
1,104,805 1,015,357 
Unbilled accounts receivable182,059 162,215 
Inventories and supplies377,308 384,657 
Prepaid expenses and other current assets93,716 81,741 
Total current assets2,608,261 2,433,796 
Property, plant and equipment, net2,497,600 2,447,941 
Other assets:
Operating lease right-of-use assets241,048 250,853 
Goodwill1,478,831 1,477,199 
Permits and other intangibles, net663,965 701,987 
Other long-term assets50,594 65,502 
Total other assets2,434,438 2,495,541 
Total assets$7,540,299 $7,377,278 
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Current portion of long-term debt$15,102 $15,102 
Accounts payable444,119 487,286 
Deferred revenue91,966 88,545 
Accrued expenses and other current liabilities415,170 419,445 
Current portion of closure, post-closure and remedial liabilities28,814 20,625 
Current portion of operating lease liabilities72,241 71,663 
Total current liabilities1,067,412 1,102,666 
Other liabilities:
Closure and post-closure liabilities, less current portion of $16,796 and $10,304, respectively
122,546 119,484 
Remedial liabilities, less current portion of $12,018 and $10,321, respectively
85,299 101,424 
Long-term debt, less current portion2,764,231 2,771,117 
Operating lease liabilities, less current portion173,137 182,883 
Deferred tax liabilities358,597 363,623 
Other long-term liabilities193,237 162,552 
Total other liabilities3,697,047 3,701,083 
Commitments and contingent liabilities (See Note 15)
Stockholders’ equity:
Common stock, $0.01 par value:
Authorized 80,000,000 shares; issued and outstanding 53,430,975 and 53,832,692 shares, respectively
534 538 
Additional paid-in capital317,145 421,749 
Accumulated other comprehensive loss(211,100)(213,635)
Retained earnings2,669,261 2,364,877 
Total stockholders’ equity2,775,840 2,573,529 
Total liabilities and stockholders’ equity$7,540,299 $7,377,278 

The accompanying notes are an integral part of these unaudited consolidated financial statements.
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CLEAN HARBORS, INC. AND SUBSIDIARIES
UNAUDITED CONSOLIDATED STATEMENTS OF OPERATIONS
(in thousands, except per share amounts)
Three Months EndedNine Months Ended
September 30,September 30,
2025202420252024
Revenues:
Service revenues$1,321,865 $1,278,955 $3,860,267 $3,719,183 
Product revenues227,472 250,467 670,874 739,653 
Total revenues1,549,337 1,529,422 4,531,141 4,458,836 
Cost of revenues: (exclusive of items shown separately below)
Service revenues873,744 872,829 2,588,407 2,539,569 
Product revenues174,746 182,770 515,464 522,642 
Total cost of revenues1,048,490 1,055,599 3,103,871 3,062,211 
Selling, general and administrative expenses189,610 177,846 558,640 557,590 
Accretion of environmental liabilities3,499 3,618 10,710 10,139 
Depreciation and amortization114,729 100,063 342,994 295,632 
Income from operations193,009 192,296 514,926 533,264 
Other income (expense), net3,517 (1,123)1,982 (2,431)
Interest expense, net of interest income of $6,497, $5,391, $17,212 and $13,257, respectively
(35,700)(35,779)(108,883)(100,767)
Income before provision for income taxes160,826 155,394 408,025 430,066 
Provision for income taxes42,027 40,181 103,641 111,741 
Net income$118,799 $115,213 $304,384 $318,325 
Earnings per share:
Basic$2.22 $2.14 $5.67 $5.90 
Diluted$2.21 $2.12 $5.65 $5.87 
Shares used to compute earnings per share - Basic53,518 53,951 53,659 53,936 
Shares used to compute earnings per share - Diluted53,713 54,229 53,871 54,229 
    

The accompanying notes are an integral part of these unaudited consolidated financial statements.
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CLEAN HARBORS, INC. AND SUBSIDIARIES
UNAUDITED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(in thousands)
 Three Months EndedNine Months Ended
September 30,September 30,
 2025202420252024
Net income$118,799 $115,213 $304,384 $318,325 
Other comprehensive (loss) income, net of tax:
Unrealized gain on available-for-sale securities69 262 164 170 
Unrealized gain (loss) on fair value of interest rate hedges524 (9,361)(3,953)2,406 
Reclassification adjustment for interest rate hedge amounts realized in net income(2,630)(3,806)(7,823)(11,260)
Pension adjustments13 (10)(20)18 
Foreign currency translation adjustments(10,547)5,369 14,167 (8,031)
Other comprehensive (loss) income, net of tax(12,571)(7,546)2,535 (16,697)
Comprehensive income$106,228 $107,667 $306,919 $301,628 

The accompanying notes are an integral part of these unaudited consolidated financial statements.
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CLEAN HARBORS, INC. AND SUBSIDIARIES
UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)
Nine Months Ended
September 30,
20252024
Cash flows from operating activities:
Net income$304,384 $318,325 
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization342,994 295,632 
Allowance for doubtful accounts6,520 5,674 
Amortization of deferred financing costs and debt discount5,024 4,623 
Accretion of environmental liabilities10,710 10,139 
Changes in environmental liability estimates(8,933)4,347 
Deferred income taxes (418)
Other (income) expense, net(1,982)2,431 
Stock-based compensation22,620 20,690 
Environmental expenditures(10,960)(19,679)
Changes in assets and liabilities, net of acquisitions:
Accounts receivable and unbilled accounts receivable(113,131)(145,647)
Inventories and supplies8,301 (39,673)
Other current and long-term assets(5,467)(47,826)
Accounts payable(35,492)30,004 
Other current and long-term liabilities(12,956)35,211 
Net cash from operating activities511,632 473,833 
Cash flows used in investing activities:
Additions to property, plant and equipment(303,169)(369,826)
Proceeds from sale and disposal of fixed assets15,250 6,353 
Acquisitions, net of cash acquired (474,011)
Proceeds from sale of business 750 
Additions to intangible assets including costs to obtain or renew permits(1,528)(2,545)
Purchases of available-for-sale securities(62,108)(73,682)
Proceeds from sale of available-for-sale securities74,968 100,021 
Net cash used in investing activities(276,587)(812,940)
Cash flows (used in) from financing activities:
Change in uncashed checks(2,639)(5,852)
Tax payments related to withholdings on vested restricted stock(13,833)(11,514)
Repurchases of common stock(117,001)(30,215)
Proceeds from employee stock purchase plan3,360  
Deferred financing costs paid (8,316)
Payments on finance leases(25,088)(23,596)
Principal payments on debt(11,327)(11,327)
Proceeds from issuance of debt, net of discount 499,375 
Net cash (used in) from financing activities(166,528)408,555 
Effect of exchange rate change on cash3,488 (1,775)
Increase in cash and cash equivalents72,005 67,673 
Cash and cash equivalents, beginning of period687,192 444,698 
Cash and cash equivalents, end of period$759,197 $512,371 
Supplemental information:
Cash payments for interest and income taxes:
Interest paid$133,520 $134,177 
Income taxes paid, net of refunds93,531 100,752 
Non-cash investing activities:
Property, plant and equipment accrued36,604 43,604 
ROU assets obtained in exchange for operating lease liabilities51,736 98,927 
ROU assets obtained in exchange for finance lease liabilities59,937 53,391 
The accompanying notes are an integral part of these unaudited consolidated financial statements.
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CLEAN HARBORS, INC. AND SUBSIDIARIES
UNAUDITED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY
(in thousands)
Common StockAccumulated
Other
Comprehensive Loss
Number
of
Shares
$0.01
Par
Value
Additional
Paid-in
Capital
Retained EarningsTotal
Stockholders’
Equity
Balance at January 1, 202553,833 $538 $421,749 $(213,635)$2,364,877 $2,573,529 
Net income— — — — 58,680 58,680 
Other comprehensive loss— — — (4,932)— (4,932)
Stock-based compensation— — 7,635 — — 7,635 
Issuance of common stock for restricted share vesting, net of employee tax withholdings59 1 (8,689)— — (8,688)
Repurchases of common stock(256)(3)(54,997)— — (55,000)
Balance at March 31, 202553,636 536 365,698 (218,567)2,423,557 2,571,224 
Net income— — — — 126,905 126,905 
Other comprehensive income— — — 20,038 — 20,038 
Stock-based compensation— — 6,063 — — 6,063 
Issuance of common stock for restricted share vesting, net of employee tax withholdings24 — (1,768)— — (1,768)
Repurchases of common stock(62)— (11,755)— — (11,755)
Employee stock purchase plan16 — 3,360 — — 3,360 
Balance at June 30, 202553,614 536 361,598 (198,529)2,550,462 2,714,067 
Net income— — — — 118,799 118,799 
Other comprehensive loss— — — (12,571)— (12,571)
Stock-based compensation— — 8,922 — — 8,922 
Issuance of common stock for restricted share vesting, net of employee tax withholdings25 — (3,377)— — (3,377)
Repurchases of common stock(208)(2)(49,998)— — (50,000)
Balance at September 30, 202553,431 $534 $317,145 $(211,100)$2,669,261 $2,775,840 




















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CLEAN HARBORS, INC. AND SUBSIDIARIES
UNAUDITED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (CONTINUED)
(in thousands)
Common Stock
Accumulated
Other
Comprehensive
Loss
Number
of
Shares
$0.01
Par
Value
Additional
Paid-in
Capital
Retained EarningsTotal
Stockholders’
Equity
Balance at January 1, 202453,930 $539 $459,728 $(175,339)$1,962,578 $2,247,506 
Net income— — — — 69,832 69,832 
Other comprehensive loss— — — (4,287)— (4,287)
Stock-based compensation— — 6,338 — — 6,338 
Issuance of common stock for restricted share vesting, net of employee tax withholdings23 — (3,052)— — (3,052)
Repurchases of common stock(27)— (5,000)— — (5,000)
Balance at March 31, 202453,926 539 458,014 (179,626)2,032,410 2,311,337 
Net income— — — — 133,280 133,280 
Other comprehensive loss— — — (4,864)— (4,864)
Stock-based compensation— — 8,515 — — 8,515 
Issuance of common stock for restricted share vesting, net of employee tax withholdings27 — (1,547)— — (1,547)
Repurchases of common stock(23)— (5,000)— — (5,000)
Balance at June 30, 202453,930 539 459,982 (184,490)2,165,690 2,441,721 
Net income— — — — 115,213 115,213 
Other comprehensive loss— — — (7,546)— (7,546)
Stock-based compensation— — 5,837 — — 5,837 
Issuance of common stock for restricted share vesting, net of employee tax withholdings54 1 (6,916)— — (6,915)
Repurchases of common stock(85)(1)(19,999)— — (20,000)
Balance at September 30, 202453,899 $539 $438,904 $(192,036)$2,280,903 $2,528,310 

The accompanying notes are an integral part of these unaudited consolidated financial statements.
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CLEAN HARBORS, INC. AND SUBSIDIARIES
NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS
(1) BASIS OF PRESENTATION
The accompanying consolidated interim financial statements are unaudited and include the accounts of Clean Harbors, Inc. and its subsidiaries (collectively, “Clean Harbors” or the “Company”) and have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”) and, in the opinion of management, include all adjustments which are of a normal recurring nature and are necessary for a fair presentation of the financial position, results of operations and cash flows for the periods presented. Management has made estimates and assumptions affecting the amounts reported in the Company’s consolidated interim financial statements and accompanying footnotes; actual results could differ from those estimates and judgments. The results for interim periods are not necessarily indicative of results for the entire year or any other interim periods. The financial statements presented herein should be read in conjunction with the financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024.
(2) SIGNIFICANT ACCOUNTING POLICIES
The Company’s significant accounting policies are described in Note 2, “Significant Accounting Policies,” in the Company's Annual Report on Form 10-K for the year ended December 31, 2024, and remain the same other than as noted below:
Income Taxes
On July 4, 2025, the One Big Beautiful Bill Act (the “Act”) was signed into law in the United States. The Act includes significant provisions, such as the permanent extension of key elements of the Tax Cuts and Jobs Act, including 100% bonus depreciation for qualified assets and domestic research cost expensing, as well as certain international tax changes. Accounting Standards Codification 740, “Income Taxes,” requires the effects of changes in tax laws to be recognized in the period in which the legislation is enacted. Many of the tax provisions of the Act are designed to accelerate tax deductions, which could lead to lower cash tax payments. The new tax provisions have multiple effective dates, with certain provisions effective in 2025 and others in future periods. The Company is still assessing the full impact of these tax law changes on its consolidated financial statements; however, the Company currently does not expect the Act to have a material impact on its financial position, results of operations or cash flows.
Recent Accounting Pronouncements
Accounting Pronouncements Adopted
In November 2023, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which requires an enhanced disclosure of significant segment expenses on an annual and interim basis. The Company adopted ASU No. 2023-07 for the year ended December 31, 2024. The only significant impact from the adoption of this standard relates to incremental disclosures now required. See Note 16 for applicable reportable segment disclosures required by this guidance.
Accounting Pronouncements Not Yet Adopted
In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which enhances income tax disclosures related to the tax rate reconciliation and income taxes paid. This guidance will be effective for annual periods beginning the year ended December 31, 2025. Early adoption is permitted. Upon adoption, the guidance can be applied prospectively or retrospectively. The requirements of this ASU are disclosure-related and are not expected to have an impact on the Company’s financial condition, results of operations or cash flows. The Company is currently evaluating the impact of adopting this new pronouncement on its income tax disclosures.
In November 2024, the FASB issued ASU No. 2024-03, Income Statement—Reporting Comprehensive
Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires disaggregated disclosure of income statement expenses. This guidance will be effective for annual periods beginning the year ended December 31, 2027. Early adoption is permitted. Upon adoption, the guidance can be applied prospectively or retrospectively. The Company is currently evaluating the impact of adopting this new pronouncement on its consolidated financial statement disclosures.
In September 2025, the FASB issued ASU No. 2025-06, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software, which is intended to modernize the accounting for internal-use software costs. The amendment eliminates the previous accounting model based on software development stages and aligns with current agile implementation principles. Under the new guidance, capitalization begins when management has
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authorized and committed to funding the project, and it is probable that the software will be completed and used for its intended purpose. The amendments are effective in annual periods beginning after December 15, 2027, and interim periods within those years, with early adoption permitted. The amendment may be applied on a prospective, retrospective or modified retrospective basis. The Company is currently evaluating the provisions of the amendments and the impact on its future consolidated statements.
(3) REVENUES
The Company generates revenues through the following operating segments: Environmental Services and Safety-Kleen Sustainability Solutions (“SKSS”). The Company’s Environmental Services operating segment generally has four sources of revenue, and the SKSS operating segment has two sources of revenue. The Company disaggregates third-party revenues by geographic location and source of revenue as management believes these categories depict how revenue and cash flows are affected by economic factors. The tables below present revenue billed to outside customers by a particular segment. Should it be necessary, there will be intercompany transactions to present the direct revenues in the appropriate segment results. The Company’s significant sources of revenue include:
Technical Services—Technical Services contribute to the revenues of the Environmental Services operating segment. Revenues for these services are generated from fees charged for waste material management and disposal services including onsite environmental management services, remediation projects, collection and transportation, packaging, recycling, treatment and disposal of waste. These services handle hazardous and/or non-hazardous waste, including per- and polyfluoroalkyl substances (“PFAS”). Revenue is primarily generated by short-term projects, most of which are governed by master service agreements that are long-term in nature and outline the pricing and legal frameworks for such arrangements. Services are provided based on purchase orders or agreements with the customer and include prices based upon units of volume of waste, material and personnel costs as well as transportation and other fees. Collection and transportation revenues are recognized over time, as the customer receives and consumes the benefits of the services as they are being performed and the Company has a right to payment for performance completed to date. The Company uses the input method to recognize revenue over time, based on time and materials incurred as a basis for measuring the satisfaction of the performance obligation. Revenues for treatment and disposal of waste are recognized upon completion of treatment, final disposition, or when the waste is shipped to a third-party for processing and disposal. The Company periodically enters into bundled arrangements for the collection and transportation and disposal of waste. For such arrangements, transportation and disposal are considered distinct performance obligations and the Company allocates revenue to each based on the relative standalone selling price (i.e., the estimated price that a customer would pay for the services on a standalone basis). Revenues and the related costs from waste that is not yet completely processed and disposed of are deferred. The deferred revenues and costs are recognized when the services are completed. The period between collection and transportation and the final processing and disposal ranges depending on the location of the customer, but generally is measured in days.
Industrial Services—Industrial Services contribute to the revenues of the Environmental Services operating segment. These revenues are primarily generated from industrial and specialty services provided to refineries, chemical plants, manufacturing facilities, power generation companies and other industrial customers throughout North America. Services include in-plant cleaning and maintenance services, plant outage and turnaround services, specialty cleaning services including chemical cleaning, pigging and high and ultra-high pressure water cleaning, leak detection and repair, daylighting, production services and upstream energy services. Services are provided based on purchase orders or agreements with the customer and include prices based upon daily, hourly or job rates for equipment, materials and personnel. The Company recognizes revenue for these services over time, as the customer receives and consumes the benefits of the services as they are being performed and the Company has a right to payment for performance completed to date. The Company uses the input method to recognize revenue over time, based on time and materials incurred.
Field and Emergency Response Services—Field and Emergency Response Services, which includes contributions from Hepaco Blocker, Inc. and its subsidiaries (collectively, “HEPACO”) since its acquisition on March 22, 2024, contribute to the revenues of the Environmental Services operating segment. Field Services revenues are generated from cleanup services at customer sites, including those managed by municipalities and utility providers, or other locations on a scheduled or emergency response basis. Services include confined space entry for tank cleaning, site decontamination, environmental remediation, railcar cleaning, manhole/vault clean outs, product recovery and transfer and vacuum services. Additional services include filtration, water treatment services and wetland restoration. Response services for environmental emergencies of any scale range from man-made disasters such as oil spills to natural disasters like hurricanes. Emergency response services also include spill cleanup on land and water, as well as contagion disinfection, decontamination and disposal services. Field and emergency response services are provided based on purchase orders or agreements with customers and include prices generally based upon daily, hourly or job rates for equipment, materials and personnel. The Company recognizes revenue for these services over time, as the customer receives and consumes the benefits of the services as they are being performed and the Company has a right to payment for performance completed to date. The Company uses the input method to recognize revenue over time, based on time and materials incurred. The duration of such services can be over a number of hours, several days or even months for larger scale projects.
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Safety-Kleen Environmental Services—Safety-Kleen Environmental Services revenues contribute both to the Environmental Services operating segment and the SKSS operating segment. Revenues from providing containerized waste handling and disposal services, parts washer services and vacuum services, referred to collectively as the Safety-Kleen branches’ core service offerings, contribute to the revenues of the Environmental Services operating segment. In addition, sales of packaged blended oil products and other complementary product sales contribute to the revenues of the Environmental Services operating segment. Revenues generated from waste oil, anti-freeze and oil filter collection services, sales of bulk blended oil products and sales of bulk automotive fluids contribute to the SKSS operating segment. Due to the complementary nature of these products and services and their customer base, there are some cross-overs of Safety-Kleen Environmental Services revenue streams between the Environmental Services and SKSS operating segments.
Generally, the revenue from services is recognized over time, as the customer receives and consumes the benefits of the services as they are being performed and the Company has a right to payment for performance completed to date. The duration of such services can be over a number of hours or several days. The Company uses the input method to recognize revenue over time, based on time and materials incurred. Product revenue is recognized upon the transfer of control whereby control transfers when the products are delivered to the customer. Containerized waste services consist of profiling, collecting, transporting and recycling or disposing of a wide variety of waste. Related collection and transportation revenues are recognized over time, as the customer receives and consumes the benefits of the services as they are being performed and the Company has a right to payment for performance completed to date. Parts washer services include customer use of the Company’s parts washer equipment, cleaning and maintenance of the parts washer equipment and removal and replacement of used cleaning fluids. Parts washer services are considered a single performance obligation due to the highly integrated and interdependent nature of the arrangement. Revenue from parts washer services is recognized over the service interval as the customer receives the benefit of the services.
Safety-Kleen Oil—Safety-Kleen Oil-related sales contribute to the revenues of the SKSS segment. These revenues are generated from bulk sales of high-quality base and blended lubricating oils to many industries, including major oil brands, lubricant blenders and manufacturers, blended lubricant distributors and government agencies. The business also sells recycled fuel oil to asphalt plants, industrial plants and pulp and paper companies. The used oil is also processed into vacuum gas oil which can be further re-refined into lubricant base oils or sold directly into the marine diesel oil fuel market. By-products coming off the refinery are a mixture of light end distillates and asphalt flux that are sold into various markets. Revenue for oil products is recognized at a point in time, upon the transfer of control. Generally, control transfers when the products are delivered to the customer.
The following tables present the Company’s third-party revenue disaggregated by source of revenue and geography (in thousands):
Three Months Ended September 30, 2025
Environmental ServicesSafety-Kleen Sustainability SolutionsCorporateTotal
Primary Geographical Markets
United States$1,194,300 $202,483 $ $1,396,783 
Canada124,280 28,274  152,554 
Total third-party revenues$1,318,580 $230,757 $ $1,549,337 
Sources of Revenue
Technical Services$490,768 $ $ $490,768 
Industrial Services
332,102   332,102 
Field and Emergency Response Services232,262   232,262 
Safety-Kleen Environmental Services263,448 76,601  340,049 
Safety-Kleen Oil 154,156  154,156 
Total third-party revenues$1,318,580 $230,757 $ $1,549,337 
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Three Months Ended September 30, 2024
Environmental ServicesSafety-Kleen Sustainability SolutionsCorporateTotal
Primary Geographical Markets
United States$1,166,660 $218,963 $96 $1,385,719 
Canada120,990 22,713  143,703 
Total third-party revenues$1,287,650 $241,676 $96 $1,529,422 
Sources of Revenue
Technical Services$437,180 $ $ $437,180 
Industrial Services
345,573  96 345,669 
Field and Emergency Response Services260,200   260,200 
Safety-Kleen Environmental Services244,697 59,675  304,372 
Safety-Kleen Oil 182,001  182,001 
Total third-party revenues$1,287,650 $241,676 $96 $1,529,422 
Nine Months Ended September 30, 2025
Environmental ServicesSafety-Kleen Sustainability SolutionsCorporateTotal
Primary Geographical Markets
United States$3,519,337 $596,612 $186 $4,116,135 
Canada336,340 78,666  415,006 
Total third-party revenues$3,855,677 $675,278 $186 $4,531,141 
Sources of Revenue
Technical Services$1,380,394 $ $ $1,380,394 
Industrial Services
1,016,040  186 1,016,226 
Field and Emergency Response Services690,755   690,755 
Safety-Kleen Environmental Services768,488 213,965  982,453 
Safety-Kleen Oil 461,313  461,313 
Total third-party revenues$3,855,677 $675,278 $186 $4,531,141 
Nine Months Ended September 30, 2024
Environmental ServicesSafety-Kleen Sustainability SolutionsCorporateTotal
Primary Geographical Markets
United States$3,395,446 $645,664 $297 $4,041,407 
Canada350,781 66,648  417,429 
Total third-party revenues$3,746,227 $712,312 $297 $4,458,836 
Sources of Revenue
Technical Services$1,288,339 $ $ $1,288,339 
Industrial Services
1,064,441  297 1,064,738 
Field and Emergency Response Services676,562   676,562 
Safety-Kleen Environmental Services716,885 171,117  888,002 
Safety-Kleen Oil 541,195  541,195 
Total third-party revenues$3,746,227 $712,312 $297 $4,458,836 
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Contract Balances
(in thousands)September 30, 2025December 31, 2024
Receivables$1,104,805 $1,015,357 
Contract assets (unbilled receivables)182,059 162,215 
Contract liabilities (deferred revenue)91,966 88,545 
The timing of revenue recognition, billings and cash collections results in billed accounts receivable, unbilled receivables (contract assets) and customer advances and deposits, or deferred revenue (contract liabilities), on the consolidated balance sheet. Generally, billing occurs subsequent to revenue recognition, as a right to payment is not just subject to passage of time, resulting in contract assets, which are generally classified as current. The Company sometimes receives advances or deposits from its customers before revenue is recognized, resulting in contract liabilities. These assets and liabilities are reported on the consolidated balance sheet on a contract-by-contract basis at the end of each reporting period. The contract liability balances at the beginning of each period presented are generally fully recognized in the subsequent three-month period.
(4) BUSINESS COMBINATIONS
2024 Acquisitions
On March 22, 2024, the Company acquired HEPACO for an all-cash purchase price of $392.2 million, net of cash acquired. The acquisition of HEPACO expanded the Environmental Services segment’s Field Services business.
The Company finalized the purchase accounting for this acquisition in the first quarter of 2025. The allocation of the purchase price was based on estimates of the fair value of assets acquired and liabilities assumed as of March 22, 2024. The following table summarizes the preliminary and final determinations and recognition of assets acquired and liabilities assumed (in thousands):
At Acquisition Date As Reported December 31, 2024Measurement Period AdjustmentsFinal Allocation At Acquisition Date
Accounts receivable, including unbilled receivables$69,072 $(856)$68,216 
Inventories and supplies384 — 384 
Prepaid expenses and other current assets4,383 (123)4,260 
Property, plant and equipment47,125 385 47,510 
Permits and other intangibles130,500 — 130,500 
Operating lease right-of-use assets9,385 — 9,385 
Other long-term assets5,712 1,133 6,845 
Accounts payable(30,602)— (30,602)
Accrued expenses and other current liabilities(16,005)(300)(16,305)
Current portion of operating lease liabilities(2,758)— (2,758)
Operating lease liabilities, less current portion(6,627)— (6,627)
Closure and post-closure liabilities(2,492)(385)(2,877)
Remedial liabilities(2,435)— (2,435)
Other long-term liabilities(374)— (374)
Total identifiable net assets205,268 (146)205,122 
Goodwill186,911 146 187,057 
Total purchase price$392,179 $ $392,179 
Other intangible assets acquired include customer relationships and trademarks/tradenames and are anticipated to have estimated useful lives of between seven and 20 years with a weighted average useful life of approximately 19 years. The Company recorded the excess of the total purchase price, which includes the aggregate cash consideration paid in excess of the fair value of the tangible and intangible assets acquired and liabilities assumed, as goodwill. The goodwill recognized is attributable to the operating synergies, assembled workforce and growth potential that the Company expects to realize from the acquisition. Goodwill generated from the acquisition is not deductible for tax purposes.
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The operations of HEPACO are included in the Company’s financial statements as of the date of acquisition. Pro forma revenue and earnings amounts on a combined basis as if this acquisition had been completed on January 1, 2024 are immaterial to the consolidated financial statements of the Company.
On March 1, 2024, the Company acquired Noble Oil Services, Inc. and its subsidiaries (collectively, “Noble”) for an all-cash purchase price of $68.7 million, net of cash acquired. The acquisition of Noble expanded the SKSS segment’s oil collection operations in the southeastern region of the United States while also adding incremental production from the re-refinery owned and operated by the acquired company.
The Company finalized the purchase accounting for this acquisition in the first quarter of 2025. The allocation of the purchase price was based on estimates of the fair value of assets acquired and liabilities assumed as of March 1, 2024. The following table summarizes the preliminary and final determinations and recognition of assets acquired and liabilities assumed (in thousands):
At Acquisition Date As Reported December 31, 2024Measurement Period AdjustmentsFinal Allocation At Acquisition Date
Accounts receivable, including unbilled receivables$5,855 $(8)$5,847 
Inventories and supplies6,598 — 6,598 
Prepaid expenses and other current assets408 — 408 
Property, plant and equipment55,615 35 55,650 
Permits and other intangibles14,500 — 14,500 
Operating lease right-of-use assets3,615 — 3,615 
Other long-term assets92 — 92 
Accounts payable(7,752)— (7,752)
Accrued expenses and other current liabilities(1,145)17 (1,128)
Current portion of operating lease liabilities(1,823)— (1,823)
Operating lease liabilities, less current portion(1,792)— (1,792)
Closure and post-closure liabilities(8,929)(35)(8,964)
Remedial liabilities(2,757)90 (2,667)
Total identifiable net assets62,485 99 62,584 
Goodwill6,257 (99)6,158 
Total purchase price$68,742 $ $68,742 
Other intangible assets acquired include customer relationships and trademarks/tradenames and are anticipated to have estimated useful lives of between seven and 15 years with a weighted average useful life of approximately 13 years. The Company recorded the excess of the total purchase price, which includes the aggregate cash consideration paid in excess of the fair value of the tangible and intangible assets acquired and liabilities assumed, as goodwill. The goodwill recognized is attributable to the operating synergies and assembled workforce that the Company expects to realize from the acquisition. Goodwill generated from the acquisition is deductible for tax purposes.
The operations of Noble are included in the Company’s financial statements as of the date of acquisition. Pro forma revenue and earnings amounts on a combined basis as if this acquisition had been completed on January 1, 2024 are immaterial to the consolidated financial statements of the Company.
During 2024, the Company completed the acquisition of three additional privately-owned businesses for $17.1 million in total cash consideration. The operations of the acquired businesses were consolidated into the Environmental Services and SKSS segments. The acquisitions of the acquired businesses were not material in 2024 to the consolidated financial statements of the Company.
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(5) INVENTORIES AND SUPPLIES
Inventories and supplies consisted of the following (in thousands):
September 30, 2025December 31, 2024
Supplies$217,844 $200,905 
Oil and oil related products128,539 152,992 
Solvent and solutions11,613 12,458 
Other19,312 18,302 
Total inventories and supplies$377,308 $384,657 
Supplies inventories consist primarily of critical spare parts to support the Company’s incinerator and re-refinery operations and other general supplies used in the Company’s normal day-to-day operations. Other inventories consist primarily of parts washer components, cleaning fluids, absorbents and automotive fluids, such as windshield washer fluid and antifreeze.
(6) PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment consisted of the following (in thousands):
September 30, 2025December 31, 2024
Land$193,380 $184,191 
Asset retirement costs (non-landfill)40,183 38,705 
Landfill assets271,692 258,138 
Buildings and improvements (1)
738,889 719,439 
Vehicles (2)
1,563,165 1,455,530 
Equipment (3)
2,616,154 2,600,085 
Construction in progress93,818 70,305 
5,517,281 5,326,393 
Less - accumulated depreciation and amortization3,019,681 2,878,452 
Total property, plant and equipment, net$2,497,600 $2,447,941 
________________
(1) Balances inclusive of gross right-of-use (“ROU”) assets classified as finance leases of $8.0 million in each period.
(2) Balances inclusive of gross ROU assets classified as finance leases of $287.3 million and $230.5 million, respectively.
(3) Balances inclusive of gross ROU assets classified as finance leases of $9.2 million in each period.
Depreciation expense, inclusive of landfill and finance lease amortization, was $101.3 million and $302.5 million for the three and nine months ended September 30, 2025, respectively. Depreciation expense, inclusive of landfill and finance lease amortization, was $86.2 million and $254.9 million for the three and nine months ended September 30, 2024, respectively. For the three and nine months ended September 30, 2025, capitalized interest recorded by the Company was negligible. For the three and nine months ended September 30, 2024, the Company recorded $3.3 million and $8.6 million, respectively, of capitalized interest mainly due to the construction of a new incinerator in Kimball, Nebraska.
(7) GOODWILL AND OTHER INTANGIBLE ASSETS
The changes in goodwill by segment for the nine months ended September 30, 2025 were as follows (in thousands):
Environmental ServicesSafety-Kleen Sustainability SolutionsTotals
Balance at January 1, 2025$1,296,204 $180,995 $1,477,199 
Measurement period adjustments from prior period acquisitions146 (99)47 
Foreign currency translation1,130 455 1,585 
Balance at September 30, 2025$1,297,480 $181,351 $1,478,831 
The Company assesses goodwill on an annual basis as of December 31 or at an interim date when events or changes in the business environment (“triggering events”) would more likely than not reduce the fair value of a reporting unit below its carrying value. During the period ended September 30, 2025, no such triggering events were identified.
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As of September 30, 2025 and December 31, 2024, the Company’s intangible assets consisted of the following (in thousands):
September 30, 2025December 31, 2024
CostAccumulated
Amortization
NetCostAccumulated
Amortization
Net
Permits$194,193 $130,053 $64,140 $191,921 $123,939 $67,982 
Customer and supplier relationships
698,036 283,708 414,328 697,326 256,657 440,669 
Other intangible assets
120,404 54,714 65,690 120,316 46,490 73,826 
Total amortizable permits and other intangible assets
1,012,633 468,475 544,158 1,009,563 427,086 582,477 
Trademarks and trade names
119,807 — 119,807 119,510 — 119,510 
Total permits and other intangible assets
$1,132,440 $468,475 $663,965 $1,129,073 $427,086 $701,987 
Amortization expense of permits, customer and supplier relationships and other intangible assets was $13.4 million and $40.5 million in the three and nine months ended September 30, 2025, respectively. Amortization expense of permits, customer and supplier relationships and other intangible assets was $13.9 million and $40.7 million in the three and nine months ended September 30, 2024, respectively.
The expected amortization of the net carrying amount of finite-lived intangible assets at September 30, 2025 was as follows (in thousands):
Years Ending December 31,Expected Amortization
2025 (three months)$13,379 
202651,727 
202749,190 
202847,708 
202942,097 
Thereafter340,057 
$544,158 
(8) ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES
Accrued expenses and other current liabilities consisted of the following (in thousands):
September 30, 2025December 31, 2024
Accrued compensation and benefits$121,249 $134,458 
Accrued insurance113,404 112,367 
Accrued income, real estate, sales and other taxes55,757 35,394 
Accrued interest14,792 33,259 
Accrued other109,968 103,967 
$415,170 $419,445 
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(9) CLOSURE AND POST-CLOSURE LIABILITIES
The changes to closure and post-closure liabilities (also referred to as “asset retirement obligations”) from January 1, 2025 through September 30, 2025 were as follows (in thousands):
Landfill
Retirement
Liability
Non-Landfill
Retirement
Liability
Total
Balance at January 1, 2025$59,400 $70,388 $129,788 
Measurement period adjustments from prior period acquisitions 420 420 
New asset retirement obligations2,838  2,838 
Accretion3,739 4,112 7,851 
Changes in estimates recorded to consolidated statement of operations467 377 844 
Changes in estimates recorded to consolidated balance sheet 890 890 
Expenditures(2,496)(970)(3,466)
Currency translation and other123 54 177 
Balance at September 30, 2025$64,071 $75,271 $139,342 
In the nine months ended September 30, 2025, there were no significant benefits or charges resulting from changes in estimates for closure and post-closure liabilities.
(10) REMEDIAL LIABILITIES 
The changes to remedial liabilities from January 1, 2025 through September 30, 2025 were as follows (in thousands):
Remedial
Liabilities for
Landfill Sites
Remedial
Liabilities for
Inactive Sites
Remedial
Liabilities
(Including
Superfund) for
Non-Landfill
Operations
Total
Balance at January 1, 2025$1,948 $57,036 $52,761 $111,745 
Measurement period adjustment from a prior period acquisition  (90)(90)
Accretion70 1,763 1,026 2,859 
Changes in estimates recorded to consolidated statement of operations(72)76 (9,781)(9,777)
Expenditures(35)(3,082)(4,377)(7,494)
Currency translation and other 86 (12)74 
Balance at September 30, 2025$1,911 $55,879 $39,527 $97,317 
    In the nine months ended September 30, 2025, the Company decreased its remedial liability for a site by approximately $10 million due to its conclusion that loss was no longer probable based on the evaluation of available evidence.
(11) FINANCING ARRANGEMENTS
Long-term Debt
The following table is a summary of the Company’s long-term debt (in thousands):
September 30, 2025December 31, 2024
Current Portion of Long-Term Debt:
Secured senior term loans$15,102 $15,102 
Long-Term Debt:
Secured senior term loans due October 8, 20281,438,469 1,449,796 
Unsecured senior notes, at 4.875%, due July 15, 2027 (“2027 Notes”)
545,000 545,000 
Unsecured senior notes, at 5.125%, due July 15, 2029 (“2029 Notes”)
300,000 300,000 
Unsecured senior notes, at 6.375%, due February 1, 2031 (“2031 Notes”)
500,000 500,000 
Long-term debt, at par$2,783,469 $2,794,796 
Unamortized debt issuance costs and discount, net(19,238)(23,679)
Long-term debt, at carrying value$2,764,231 $2,771,117 
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Financing Activities
The Company’s significant financing arrangements are described in Note 12, “Financing Arrangements,” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024. There have been no material changes to the arrangements described therein as of September 30, 2025.
As of September 30, 2025 and December 31, 2024, the estimated fair value of the Company's outstanding long-term debt, including the current portion, was $2.8 billion. The Company's estimates of fair value of its long-term debt, including the current portion, are based on quoted market prices or other available market data that are considered Level 2 measures according to the fair value hierarchy. Level 2 utilizes quoted market prices in markets that are not active, broker or dealer quotations or alternative pricing sources with reasonable levels of price transparency for similar assets and liabilities.
The Company maintains a $600.0 million revolving credit facility under which the Company had no outstanding loan balance as of September 30, 2025 or December 31, 2024. As of September 30, 2025, the Company had $473.3 million available to borrow under the revolving credit facility, and outstanding letters of credit were $126.7 million.
Issuance of 5.750% Unsecured Senior Notes due 2033
On October 9, 2025, the Company issued $745.0 million aggregate principal amount unsecured senior notes due 2033 (the “2033 Notes”). The 2033 Notes will mature on October 15, 2033. Interest payments on the 2033 Notes will be paid semiannually in arrears, on April 15 and October 15 of each year, commencing on April 15, 2026, at a rate of 5.750% per annum.
The 2033 Notes were issued under an Indenture, dated October 9, 2025 (the “Indenture”). The Indenture contains various customary non-financial covenants and are guaranteed by substantially all of the Company’s current and future domestic subsidiaries. If a change of control triggering event (as defined in the Indenture) occurs, the Company may be required to offer the holders of the 2033 Notes an opportunity to sell all or part of their 2033 Notes at a purchase price of 101% of the principal amount of the 2033 Notes, plus accrued and unpaid interest, if any, to, but excluding, the date of repurchase. In addition, if the Company sells assets under certain circumstances, the Company may be required to make an offer to purchase a portion of the 2033 Notes.
At any time prior to October 15, 2028, the Company may on one or more occasions redeem the 2033 Notes, in whole or in part, at a price equal to 100% of the principal amount of the 2033 Notes redeemed, plus a “make-whole” premium, as set forth in the Indenture, plus accrued and unpaid interest, if any, to, but excluding, the redemption date. On or after October 15, 2028, the Company may on one or more occasions redeem the 2033 Notes, in whole or in part, at the applicable redemption prices set forth in the Indenture, plus accrued and unpaid interest, if any, to, but excluding, the redemption date. In addition, at any time prior to October 15, 2028, the Company may on one or more occasions redeem up to 40% of the aggregate principal amount of the 2033 Notes with an amount equal to or less than the net cash proceeds received by the Company from certain equity offerings at a redemption price equal to 105.750% of the principal amount thereof, plus accrued and unpaid interest, if any, to, but excluding, the redemption date.
The Indenture provides for customary events of default, which include (subject in certain cases to customary grace and cure periods) nonpayment of principal or interest; breach of other agreements in the Indenture; defaults in failure to pay certain other indebtedness; certain events of bankruptcy or insolvency; the failure to pay final judgments in excess of certain amounts of money against the Company and its significant subsidiaries; and the failure of certain guarantees to be enforceable (other than in accordance with the terms of the Indenture).
The Company used a portion of the net proceeds from the offering of the 2033 Notes and $1,260.0 million in borrowings under the Amended Credit Agreement (defined below) to refinance all of the approximately $1,457.3 million aggregate principal amount of secured senior term loans that were outstanding under the Company’s previously existing term loan credit facility, and accrued and unpaid interest thereon, and to pay related fees and expenses. The Company intends to use the remainder of the net proceeds from the offering of the 2033 Notes, together with cash on hand, to redeem all of the $545.0 million aggregate principal amount of its outstanding 4.875% senior notes due 2027 (the “2027 Notes”). On October 1, 2025, the Company issued a redemption notice with a 30-day notice period, as required by the indenture governing the 2027 Notes, indicating the Company’s intent to redeem the 2027 Notes in full on October 31, 2025.
Refinance of Secured Senior Term Loans
On October 9, 2025, the Company and substantially all of the Company’s domestic subsidiaries as guarantors entered into an amendment and restatement agreement with Goldman Sachs Lending Partners LLC, as administrative agent and collateral agent (the “Agent”), and the lenders party thereto, which amended and restated the credit agreement, dated as of June 30, 2017 (as
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previously amended, the “Prior Credit Agreement,” and as so amended and restated, the “Amended Credit Agreement”), among the Company, the Agent, the guarantors party thereto and the lenders party thereto.
The Amended Credit Agreement provides for a new tranche of refinancing term loans (the “New Term Loans”) in an aggregate principal amount equal to $1,260.0 million, the proceeds of which were used, along with certain proceeds of the 2033 Notes and cash on hand, to refinance in full all existing term loans outstanding under the Prior Credit Agreement immediately prior to closing of the Amended Credit Agreement. The New Term Loans mature on October 9, 2032 (which may change subject to certain conditions), and may be prepaid at any time without premium or penalty (other than customary breakage costs with respect to Term SOFR-based loans), except if the Company engages in certain repricing transactions before April 9, 2026, in which event a 1.0% prepayment premium would be due. The Company’s obligations under the Amended Credit Agreement with respect to the New Term Loans are guaranteed by substantially all of the Company’s domestic restricted subsidiaries and secured by liens on substantially all of the assets of the Company and the guarantors.
The New Term Loans bear interest at a rate of, at the Company’s option, either (i) “Term SOFR” (as defined in the Amended Credit Agreement, based primarily upon the secured overnight financing rate administered by the Federal Reserve Bank of New York (“SOFR”)), plus 1.50% per annum, or (ii) the U.S. Base Rate (as defined in the Amended Credit Agreement), plus 0.50% per annum. Prior to this amendment, the existing term loans bore interest at (i) Term SOFR plus 1.75% per annum or (ii) the U.S. Base Rate, plus 0.05% per annum. Interest on the term loans is paid monthly.
The Amended Credit Agreement contains representations and warranties, affirmative and negative covenants, and events of default, which the Company believes are usual and customary for an agreement of this type. Such covenants restrict the Company’s ability, among other matters, to incur debt, create liens on the Company’s assets, make restricted payments or investments or enter into transactions with affiliates.
Cash Flow Hedges
The Company’s strategy to hedge against fluctuations in variable interest rates involves entering into interest rate derivative agreements.
Although the interest rate on the Company’s secured senior term loans is variable, the Company has effectively fixed the interest rate on $600.0 million aggregate principal amount of the term loans outstanding by entering into interest rate swap agreements in 2022 with a notional amount of $600.0 million (the “2022 Swaps”). Under the terms of the 2022 Swaps, the Company receives interest based on the one-month SOFR index and pays interest at a weighted annual interest rate of 1.965%, resulting in an effective interest rate of 3.71% when considering the 1.75% interest rate margin of the term loans as of September 30, 2025. The refinance of the Secured Term Loan, discussed above, will reduce this effective interest rate to 3.46% prospectively. The 2022 Swaps will expire on September 30, 2027.
The Company recognizes the derivative instruments as either assets or liabilities on the balance sheet at fair value. As of September 30, 2025 and December 31, 2024, the Company has recorded a derivative asset with a fair value of $16.3 million and $32.4 million, respectively, within Other long-term assets on the consolidated balance sheets in connection with the 2022 Swaps.
No ineffectiveness has been identified on the 2022 Swaps and, therefore, the change in fair value is recorded in stockholders’ equity as a component of accumulated other comprehensive loss. Amounts are reclassified from accumulated other comprehensive loss into interest expense on the unaudited consolidated statement of operations in the same period or periods during which the hedged transactions affect earnings. The Company’s debt transactions entered into on October 9, 2025 will not impact the cash flow hedge classification of the 2022 Swaps.
(12) EARNINGS PER SHARE 
The computation of basic earnings per share (EPS) is based on the weighted-average number of common shares outstanding. The computation of diluted EPS is based on the weighted-average number of common shares outstanding and potential dilutive common shares during the period as determined by using the treasury stock method.
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The following are computations of basic and diluted earnings per share (in thousands, except per share amounts):
 Three Months Ended September 30,Nine Months Ended September 30,
 2025202420252024
Numerator for basic and diluted earnings per share:
Net income$118,799 $115,213 $304,384 $318,325 
Denominator:
Weighted-average shares outstanding, basic53,518 53,951 53,659 53,936 
Dilutive impact of equity awards195 278 212 293 
Weighted-average shares outstanding, diluted
53,713 54,229 53,871 54,229 
Basic earnings per share:$2.22 $2.14 $5.67 $5.90 
Diluted earnings per share:$2.21 $2.12 $5.65 $5.87 
In the table above, potentially dilutive shares include the dilutive effect of unvested restricted stock awards and employee stock purchase plan (“ESPP”) rights (collectively referred to as “equity awards”). Potentially dilutive shares whose effect would have been antidilutive are excluded from the computation of diluted earnings per share. The Company included all outstanding performance awards, restricted stock awards and ESPP rights in the calculation of diluted earnings per share except as shown in the table below (in thousands):
 Three Months Ended September 30,Nine Months Ended September 30,
2025202420252024
Antidilutive restricted stock awards2 5 9 6 
Performance stock awards for which performance criteria was not attained at reporting date95 160 95 160 
(13) ACCUMULATED OTHER COMPREHENSIVE LOSS
The changes in accumulated other comprehensive loss by component and related tax impacts for the nine months ended September 30, 2025 were as follows (in thousands):
Foreign Currency Translation
Adjustments
Unrealized Gain on Available-For-Sale Securities
Unrealized Gain on Fair Value of Interest Rate HedgesUnrealized Loss on PensionTotal
Balance at January 1, 2025$(236,702)$33 $23,652 $(618)$(213,635)
Other comprehensive income (loss) before reclassifications
14,167 208 (5,415)(20)8,940 
Amounts reclassified out of accumulated other comprehensive loss  (10,717) (10,717)
Tax (provision) benefit (44)4,356  4,312 
Other comprehensive income (loss)
14,167 164 (11,776)(20)2,535 
Balance at September 30, 2025$(222,535)$197 $11,876 $(638)$(211,100)
The amount realized in the unaudited consolidated statement of operations during the three and nine months ended September 30, 2025 which was reclassified out of accumulated other comprehensive loss was as follows (in thousands):
Component of Accumulated Other Comprehensive LossThree Months Ended September 30, 2025Nine Months Ended September 30, 2025Location
Unrealized Gain on Fair Value of Interest Rate Hedges$3,603 $10,717 Interest expense, net of interest income
(14) STOCK-BASED COMPENSATION
Total stock-based compensation cost recognized for the three and nine months ended September 30, 2025 was $8.9 million and $22.6 million, respectively. Total stock-based compensation cost recognized for the three and nine months ended September 30, 2024 was $5.8 million and $20.7 million, respectively. The total income tax benefit recognized in the unaudited consolidated statements of operations from stock-based compensation expense for the three and nine months ended September 30, 2025 was $1.5
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million and $3.8 million, respectively. The total income tax benefit recognized in the unaudited consolidated statements of operations from stock-based compensation expense for the three and nine months ended September 30, 2024 was $1.0 million and $3.7 million, respectively.
Restricted Stock Awards
The following table summarizes information about restricted stock awards for the nine months ended September 30, 2025:
Restricted StockNumber of SharesWeighted Average
Grant-Date
Fair Value
Balance at January 1, 2025387,960 $143.69 
Granted93,350 229.18 
Vested(127,336)128.49 
Forfeited(31,015)147.34 
Balance at September 30, 2025322,959 $174.04 
As of September 30, 2025, there was $40.9 million of total unrecognized compensation cost arising from restricted stock awards. This cost is expected to be recognized over a weighted average period of 2.1 years. The total fair value of restricted stock vested during the three and nine months ended September 30, 2025 was $7.0 million and $29.1 million, respectively. The total fair value of restricted stock vested during the three and nine months ended September 30, 2024 was $16.3 million and $27.2 million, respectively.
Performance Stock Awards
Performance stock awards are subject to performance criteria established by the Compensation and Human Capital Committee of the Company’s board of directors prior to or at the date of grant. The performance stock awards are earned based on achieving certain revenue, Adjusted EBITDA, Adjusted EBITDA Margin and Return on Invested Capital targets set forth in the applicable award agreements. Performance stock awards include continued service conditions through vesting.
The following table summarizes information about performance stock awards for the nine months ended September 30, 2025:
Performance StockNumber of SharesWeighted Average
Grant-Date
Fair Value
Balance at January 1, 2025159,196 $102.09 
Granted (1)
74,124 232.78 
Vested(43,492)126.49 
Forfeited(28,055)160.39 
Balance at September 30, 2025161,773 $181.33 
________________
(1) The granted activity for performance stock awards is recorded based on the target performance level of 100%. The actual number of performance share awards earned for the 2025 performance stock grants could range from 0% to 200% of target depending on the achievement of the pre-established performance goals.
As of September 30, 2025, there was $13.5 million of total unrecognized compensation cost arising from performance stock awards achieved or deemed probable of vesting. The total fair value of performance awards vested during the three and nine months ended September 30, 2025 was $2.2 million and $8.7 million, respectively. The total fair value of performance awards vested during the three and nine months ended September 30, 2024 was $2.6 million and $6.3 million, respectively.
Employee Stock Purchase Plan
The ESPP provides a means for eligible employees of the Company to authorize after-tax payroll deductions on a voluntary basis to be used for the periodic purchase of the Company's common stock at a 10% discount to its fair market value. The purchase price paid by the employees will be 90% of the lower of the closing price of the Company's common stock on (i) the first trading day of the offering period or (ii) the last trading day of the offering period. The contribution periods run from January to June and July to December with share issuances under the ESPP occurring on the closest business day on or prior to June 30 and December 31. There were 16,266 shares issued under the ESPP during the nine months ended September 30, 2025.
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(15) COMMITMENTS AND CONTINGENCIES
The Company and its subsidiaries are subject to legal proceedings and claims arising in the ordinary course of business. Actions filed against the Company arise from commercial and employment-related claims including alleged class actions related to sales practices and wage and hour claims. The plaintiffs in these actions may be seeking damages or injunctive relief or both. These actions are in various jurisdictions and stages of proceedings, and some are covered in part by insurance. In addition, the Company’s waste management services operations are regulated by federal, state, provincial and local laws enacted to regulate discharge of materials into the environment and remediation of contaminated soil and groundwater or otherwise protect the environment. This ongoing regulation results in the Company frequently becoming a party to legal or administrative proceedings involving all levels of government authorities and other interested parties. The issues involved in such proceedings generally relate to alleged violations of existing permits and licenses or alleged responsibility under federal or state Superfund laws to remediate contamination at properties owned either by the Company or by other parties (“third-party sites”) to which either the Company or the prior owners of certain of the Company’s facilities shipped waste.
At September 30, 2025 and December 31, 2024, the Company had recorded reserves of $19.4 million and $29.8 million, respectively, for actual or probable liabilities related to the legal and administrative proceedings in which the Company was then involved, the principal of which are described below. As of September 30, 2025 and December 31, 2024, the $19.4 million and $29.8 million, respectively, of reserves consisted of (i) $11.5 million and $23.3 million, respectively, related to pending legal or administrative proceedings, including Superfund liabilities, which were included in remedial liabilities on the consolidated balance sheets, and (ii) $7.9 million and $6.5 million, respectively, primarily related to federal, state and provincial enforcement actions, which were included in accrued expenses on the consolidated balance sheets.
In management’s opinion, it is not reasonably possible that the potential liability beyond what has been recorded, if any, that may result from these actions, either individually or collectively, will have a material effect on the Company’s financial position, results of operations or cash flows. The Company periodically adjusts the aggregate amount of these reserves when actual or probable liabilities are paid or otherwise discharged, new claims arise, or additional relevant information about existing or probable claims becomes available.
Legal or Administrative Proceedings
As of September 30, 2025, the principal legal and administrative proceedings in which the Company was involved, or which had been terminated during 2025, relate to Safety-Kleen product liability cases and Superfund proceedings.
Safety-Kleen Product Liability Cases: Safety-Kleen, Inc. (“Safety-Kleen”), which is a legal entity acquired by the Company in 2012, has been named as a defendant in certain product liability cases that are currently pending in various courts and jurisdictions throughout the United States. As of September 30, 2025, there were approximately 85 proceedings (excluding cases which have been settled but not formally dismissed) wherein persons claim personal injury resulting from the use of Safety-Kleen’s parts cleaning equipment or cleaning products. These proceedings typically involve allegations that the solvent used in Safety-Kleen’s parts cleaning equipment contains contaminants and/or that Safety-Kleen’s recycling process does not effectively remove the contaminants that become entrained in the solvent during their use. In addition, certain claimants assert that Safety-Kleen failed to warn adequately the product user of potential risks, including a historic failure to warn that solvent contains trace amounts of toxic or hazardous substances such as benzene.
The Company maintains insurance that it believes will provide coverage for these product liability claims (over amounts accrued for self-insured retentions and deductibles in certain limited cases), except for punitive damages to the extent not insurable under state law or excluded from insurance coverage. The Company historically has vigorously defended, and intends to continue to vigorously defend, itself and the safety of its products against all of these claims. Such matters are subject to many uncertainties, and outcomes are not predictable with assurance. Consequently, the Company is unable to ascertain the ultimate aggregate amount of monetary liability or financial impact with respect to these matters as of September 30, 2025. From January 1, 2025 to September 30, 2025, nine product liability claims were settled or dismissed. Due to the nature of these claims and the related insurance, the Company did not incur any expense as insurance provided coverage in full for all such claims. Safety-Kleen may be named in similar, additional lawsuits in the future, including claims for which insurance coverage may not be available.
Superfund Proceedings: The Company has been notified that either the Company or the prior owners of certain facilities the Company has since acquired have been identified as potentially responsible parties (“PRPs”) or potential PRPs of indemnification obligations in connection with 132 sites which are subject to or are proposed to become subject to proceedings under federal or state Superfund laws. Of the 132 Superfund related sites, six involve facilities that are now owned or leased by the Company and 126 involve third-party sites that received waste potentially shipped by the Company or the prior owners of certain facilities the Company
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has since acquired. Of the 126 third-party sites, 30 are now settled, 12 are currently requiring expenditures on remediation and 84 are not currently requiring expenditures on remediation.
In connection with each site, the Company has estimated the extent, if any, to which it may be subject, either directly or as a result of any indemnification obligations, for cleanup and remediation costs, related legal and consulting costs associated with PRP investigations, settlements and related legal and administrative proceedings. The amount of such actual and potential liability is inherently difficult to estimate because of, among other relevant factors, uncertainties as to the legal liability (if any) of the Company or the prior owners of certain of the Company’s facilities to contribute a portion of the cleanup costs, the assumptions that must be made in calculating the estimated cost and timing of remediation, the identification of other PRPs and their respective capability and obligation to contribute to remediation efforts and the existence and legal standing of indemnification agreements (if any) with prior owners, which may either benefit the Company or subject the Company to potential indemnification obligations. The Company believes its potential monetary liability could exceed $1.0 million at three of the 132 Superfund related sites.
Of the 126 third-party sites at which the Company has been notified it is a PRP or potential PRP or may have indemnification obligations, the Company has indemnification agreements at a total of 17 sites. These agreements indemnify the Company with respect to any liability at the 17 sites for waste disposed prior to the Company’s acquisition of the former subsidiaries of Waste Management, Inc. and McKesson Corporation, which had shipped waste to those sites. Accordingly, the indemnifying parties are paying all costs of defending those subsidiaries in those 17 cases, including legal fees and settlement costs. However, there can be no guarantee that the Company’s ultimate liabilities for those sites will not exceed the amount recorded or that indemnities applicable to any of these sites will be available to pay all or a portion of related costs. Except for those indemnification agreements discussed, the Company does not have an indemnity agreement with respect to any of the 126 third-party sites discussed above.
Federal, State and Provincial Enforcement Actions
From time to time, the Company pays fines or penalties in regulatory proceedings relating primarily to waste treatment, storage or disposal facilities. As of September 30, 2025 and December 31, 2024, there were two proceedings for which the Company believed it was possible that the sanctions could equal or exceed $1.0 million. As of the date of these financial statements, the Company believes that the fines or other penalties in these or any of the other regulatory proceedings will, individually or in the aggregate, not have a material effect on its financial condition, results of operations or cash flows.
(16) SEGMENT REPORTING 
Segment reporting is prepared on the same basis that the Company’s chief operating decision maker (the “CODM”), which is a committee comprised of the Company’s Co-Chief Executive Officers, manages the business, makes operating decisions and assesses performance. The Company is managed and reports as two operating segments; (i) the Environmental Services segment and (ii) the Safety-Kleen Sustainability Solutions segment.
Third-party revenue is revenue billed to outside customers by a particular segment. Direct revenue is revenue allocated to the segment providing the product or service. Intersegment revenues represent the sharing of third-party revenues among the segments based on products and services provided by each segment as if the products and services were sold directly to the third-party. The intersegment revenues are shown net. The operations not managed through the Company’s operating segments described above are recorded as “Corporate.” Although such transactions are excluded from the business segment results, they are included in reported consolidated earnings.
The following tables reconcile third-party revenues to direct revenues by reportable segment (in thousands):
 For the Three Months Ended September 30, 2025
 Environmental
Services
Safety-Kleen Sustainability SolutionsTotal
Segment Revenues
CorporateTotal Consolidated Revenues
Third-party revenues$1,318,580 $230,757 $1,549,337 $ $1,549,337 
Intersegment revenues (expense), net12,720 (12,720)— — — 
Direct revenues$1,331,300 $218,037 $1,549,337 $ $1,549,337 
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 For the Three Months Ended September 30, 2024
 Environmental
Services
Safety-Kleen Sustainability SolutionsTotal
Segment Revenues
CorporateTotal Consolidated Revenues
Third-party revenues$1,287,650 $241,676 $1,529,326 $96 $1,529,422 
Intersegment revenues (expense), net9,537 (9,537)— — — 
Direct revenues$1,297,187 $232,139 $1,529,326 $96 $1,529,422 
 For the Nine Months Ended September 30, 2025
 Environmental
Services
Safety-Kleen Sustainability SolutionsTotal
Segment Revenues
CorporateTotal Consolidated Revenues
Third-party revenues$3,855,677 $675,278 $4,530,955 $186 $4,531,141 
Intersegment revenues (expense), net36,771 (36,771)— — — 
Direct revenues$3,892,448 $638,507 $4,530,955 $186 $4,531,141 
 For the Nine Months Ended September 30, 2024
 Environmental
Services
Safety-Kleen Sustainability SolutionsTotal
Segment Revenues
CorporateTotal Consolidated Revenues
Third-party revenues$3,746,227 $712,312 $4,458,539 $297 $4,458,836 
Intersegment revenues (expense), net32,853 (32,853)— — — 
Direct revenues$3,779,080 $679,459 $4,458,539 $297 $4,458,836 
The primary financial measure by which the CODM evaluates the performance of its segments is Adjusted EBITDA, which consists of net income plus accretion of environmental liabilities, stock-based compensation, depreciation and amortization, net interest expense and provision for income taxes and excludes other transactions not deemed representative of fundamental segment results and other (income) expense, net. Transactions between the segments are accounted for at the Company’s best estimate based on similar transactions with outside customers.
The CODM uses Adjusted EBITDA to enhance their understanding of segment operating performance, which represents the Company’s performance in the ordinary, ongoing and customary course of operations. The reportable segment operating performance Adjusted EBITDA is used by the CODM to make key operating decisions such as the allocation of resources. Total assets by segment are not used by the CODM to assess the performance of, or allocate resources to, the Company’s segments. Therefore total assets by segment are not disclosed.
The tables below present total Reportable Segment Adjusted EBITDA and the relevant significant segment expenses provided to the CODM by reported segment (in thousands):
For the Three Months Ended September 30, 2025
Environmental ServicesSafety-Kleen Sustainability SolutionsTotal Reportable Segments
Direct Revenues$1,331,300 $218,037 $1,549,337 
Cost of Revenues871,487 158,545 1,030,032 
Selling, General and Administrative Expenses102,584 18,555 121,139 
Total Reportable Segment Adjusted EBITDA$357,229 $40,937 $398,166 
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For the Three Months Ended September 30, 2024
Environmental ServicesSafety-Kleen Sustainability SolutionsTotal Reportable Segments
Direct Revenues$1,297,187 $232,139 $1,529,326 
Cost of Revenues874,414 171,120 1,045,534 
Selling, General and Administrative Expenses90,271 19,793 110,064 
Total Reportable Segment Adjusted EBITDA$332,502 $41,226 $373,728 
For the Nine Months Ended September 30, 2025
Environmental ServicesSafety-Kleen Sustainability SolutionsTotal Reportable Segments
Direct Revenues$3,892,448 $638,507 $4,530,955 
Cost of Revenues2,592,300 476,550 3,068,850 
Selling, General and Administrative Expenses292,134 54,455 346,589 
Total Reportable Segment Adjusted EBITDA$1,008,014 $107,502 $1,115,516 
For the Nine Months Ended September 30, 2024
Environmental ServicesSafety-Kleen Sustainability SolutionsTotal Reportable Segments
Direct Revenues$3,779,080 $679,459 $4,458,539 
Cost of Revenues2,541,017 496,441 3,037,458 
Selling, General and Administrative Expenses281,171 60,616 341,787 
Total Reportable Segment Adjusted EBITDA$956,892 $122,402 $1,079,294 
The following table presents Total Reportable Segment Adjusted EBITDA reconciled to income from operations before provision for income taxes (in thousands):
 Three Months EndedNine Months Ended
September 30,September 30,
 2025202420252024
Adjusted EBITDA:  
Environmental Services$357,229 $332,502 $1,008,014 $956,892 
Safety-Kleen Sustainability Solutions40,937 41,226 107,502 122,402 
Total Reportable Segment Adjusted EBITDA398,166 373,728 1,115,516 1,079,294 
Reconciliation to Consolidated Statements of Operations:  
Corporate Costs(1)
78,007 71,914 224,266 219,569 
Accretion of environmental liabilities3,499 3,618 10,710 10,139 
Stock-based compensation8,922 5,837 22,620 20,690 
Depreciation and amortization114,729 100,063 342,994 295,632 
Income from operations193,009 192,296 514,926 533,264 
Other (income) expense, net(3,517)1,123 (1,982)2,431 
Interest expense, net of interest income35,700 35,779 108,883 100,767 
Income from operations before provision for income taxes$160,826 $155,394 $408,025 $430,066 
________________
(1)    Corporate Costs include certain revenue, cost of revenues and selling, general and administrative expenses not managed through the Company’s operating segments. These costs are not captured within the Company’s Reportable Segment Adjusted EBITDA, but are included in the Company’s total Adjusted EBITDA balances.
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ITEM 2.    MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS 
Forward-Looking Statements 
In addition to historical information, this Quarterly Report on Form 10-Q contains forward-looking statements, which are generally identifiable by use of the words “believes,” “expects,” “intends,” “anticipates,” “plans to,” “seeks,” “aims,” “will,” “should,” “estimates,” “projects,” “may,” “likely,” “potential” or similar expressions. Such statements may include, but are not limited to, statements about our future financial and operating results, plans, strategy, objectives and goals, cost management initiatives, pricing and productivity initiatives, contingent liabilities, liquidity, business, economic and market conditions, trends, customer demand, impacts of tariffs and new legislation, acquisitions, capital spending, growth opportunities, expectations, challenges and other statements that are not historical facts. Such statements are based upon the beliefs and expectations of our management as of the date of this report only and are subject to certain risks and uncertainties that could cause actual results, performance or achievements to differ materially, including, without limitation: operational and safety risks; risks relating to the failure of new or existing technologies; cybersecurity risks; the occurrence of natural disasters or other catastrophic events, as well as their residual macroeconomic effects; risks associated with retaining and hiring key personnel; environmental liability and product liability risks relating to hazardous waste management and other components of our business; negative economic, industry or other developments, including market volatility or economic downturns; risks associated with our assumptions relating to expansion of our landfills; reductions in the demand for emergency response services at industrial facilities or on roadways, railways or waterways, and other remedial projects and regulatory developments; reductions in the demand for oil products and automotive services and volatility in oil prices in the markets we serve; changes in statutory and regulatory requirements and risks relating to extensive environmental laws and regulations; risks associated with existing and potential litigation; risks associated with our identification and execution of strategic acquisitions and divestitures and their related liabilities; risks relating to the availability and sufficiency of our insurance coverage, self-insurance, surety bonds, letters of credit and other forms of financial assurance; impact of new tax legislation or changes in tax regulations and interpretations; the imposition of trade sanctions or tariffs; fluctuations in interest rates and foreign currency exchange rates; risks relating to our indebtedness and covenants in our debt agreements; risks associated with certain anti-takeover provisions under the Massachusetts Business Corporation Act and our By-Laws; and those items discussed elsewhere in this report or identified as “Risk Factors” in our Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on February 19, 2025, and in other documents we file from time to time with the SEC. Forward-looking statements are neither historical facts nor assurances of future performance. Therefore, readers are cautioned not to place undue reliance on these forward-looking statements, which reflect management’s opinions only as of the date hereof. Our actual results and financial condition may differ materially from those indicated in the forward-looking statements. We undertake no obligation to revise or publicly release the results of any revision to these forward-looking statements.

Overview
We are North America’s leading provider of environmental and industrial services, supporting our customers in finding environmentally responsible solutions to further their sustainability goals. Everywhere industry meets the environment, we strive to provide eco-friendly services and products that protect and restore North America’s natural environment. We believe we operate, in the aggregate, the largest number of hazardous waste incinerators, landfills and treatment, storage and disposal facilities (“TSDFs”) in North America. We serve over 350,000 customers, including the majority of Fortune 500 companies, across various markets including chemical and manufacturing, as well as numerous government agencies. These customers rely on us to safely deliver a broad range of services, including, but not limited to end-to-end hazardous waste management, emergency response, industrial cleaning and maintenance and recycling services. We are also a leading provider of parts cleaning and related environmental services to general manufacturing, automotive and commercial customers in North America and the largest re-refiner and recycler of used oil in North America.
Performance of our segments is evaluated on several factors of which the primary financial measure is Adjusted EBITDA, a non-GAAP measure that is reconciled to our GAAP net income and described more fully below. The following is a discussion of how management evaluates our segments in regards to other factors, including key performance indicators that management uses to assess the segments’ results, as well as certain macroeconomic trends and influences that impact each reportable segment:
Environmental Services - The Environmental Services segment results are driven by the customer demand for our wide variety of services, the volume, pricing and mix of waste managed and project work requiring responsible waste handling and disposal. Environmental Services results are also impacted by the demand for planned and unplanned industrial related cleaning and maintenance services at customer sites and environmental cleanup services on a scheduled or emergency basis, including response to large scale events such as major chemical spills, natural disasters, or other instances where immediate and specialized services are required. The Environmental Services segment results
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include the Safety-Kleen branches’ core environmental service offerings of containerized waste disposal, parts washer and vacuum services. These results are driven by the volumes of waste collected from these customers, the overall number of parts washers placed at customer sites, and the demand for and frequency of other offered services. The results and integration of the acquired operations of HEPACO, which we acquired in March 2024, also impact the overall segment results as we integrated this business into our Field Services operations. In managing the business and evaluating performance, management tracks the volumes and mix of waste handled and disposed of or recycled, generally through our incinerators, TSDFs and landfills, the utilization rates of our incinerators, equipment and workforce, including billable hours and the number of parts washer services performed, and pricing realized by our business and peer companies as well as other key metrics. Levels of activity and ultimate performance associated with this segment can be impacted by several factors including overall North American GDP, U.S. industrial production, economic conditions in the general manufacturing, chemical and automotive markets, including efforts and economic incentives to increase domestic operations, available capacity at waste disposal outlets, demand for industrial cleaning and related industrial services, weather conditions, efficiency of our operations, technology, changing regulations, competition, market pricing of our services, costs incurred to deliver our services and the management of our related operating costs.
Safety-Kleen Sustainability Solutions - The Safety-Kleen Sustainability Solutions (“SKSS”) segment results are impacted by our customers’ demand for high-quality, environmentally responsible recycled oil products and their demand for our related service and product offerings. SKSS offers high-quality recycled base and blended oil products and other automotive and industrial lubricants to end users including fleet customers, distributors, manufacturers of oil products and industrial plants. Segment results are impacted by market pricing, overall demand and the mix of our oil products sales. Segment results are also predicated on the demand for other SKSS product and service offerings including collection services for used oil, used oil filters and other automotive fluids. The used oil collected is used as feedstock in our oil re-refining to produce our base and blended oil products and other hydraulic oils, lubricants and recycled fuel oil or are integrated into our recycling and disposal network. The results and integration of the acquired operations of Noble also impact the overall segment results. In operating the business and evaluating performance, management tracks the volumes and relative percentages of base and blended oil sales along with various pricing metrics associated with the commodity driven margin between product pricing and the overall revenue generation and costs associated with the collection of used oil. Levels of activity and ultimate performance associated with this segment can be impacted by economic conditions in the manufacturing and automotive services markets, efficiency of our operations, technology, weather conditions, changing regulations, competition and the management of our related operating costs. Overall product pricing as well as revenues generated and/or costs incurred in connection with the collection of used oil and other raw materials associated with the segment’s oil related products can also be volatile and can be impacted by global events and their relative impact on commodity products and pricing. The overall market price of oil and regulations that change the possible usage of used oil or burning of used oil as a fuel, impact the premium the segment can charge for used oil collections.
Highlights
Total direct revenues for the three and nine months ended September 30, 2025 were $1,549.3 million and $4,531.1 million, compared with $1,529.4 million and $4,458.8 million for the three and nine months ended September 30, 2024, respectively. For the three months ended September 30, 2025, our Environmental Services segment direct revenues increased $34.1 million or 2.6% from the comparable period in 2024, driven by strong demand for our waste disposal services within Technical Services and Safety-Kleen core services, offset by lower contributions from our Field and Emergency Response Services operations and our Industrial Services organization. For the nine months ended September 30, 2025, our Environmental Services segment direct revenues increased $113.4 million or 3.0% from the comparable period in 2024, driven by growth in Technical Services, Safety-Kleen core services and Field and Emergency Response Services, specifically incremental contributions from the acquisition of HEPACO, offset by lower contributions from our Industrial Services organization. For the three and nine months ended September 30, 2025, our SKSS segment direct revenues decreased $14.1 million and $41.0 million or 6.1% and 6.0%, respectively, from the comparable periods in 2024, driven predominantly by lower pricing of base and blended oil products. These decreases were partially offset by higher charge for oil revenue for the three and nine months ended September 30, 2025 and incremental contributions from Noble for the nine months ended September 30, 2025. Foreign currency translation of our Canadian operations negatively impacted our consolidated direct revenues by $1.6 million and $11.7 million in the three and nine months ended September 30, 2025, respectively, compared to the same periods in 2024.
Income from operations for the three and nine months ended September 30, 2025 was $193.0 million and $514.9 million, compared with $192.3 million and $533.3 million in the three and nine months ended September 30, 2024, respectively. Depreciation and amortization expense for the three and nine months ended September 30, 2025 was $14.7 million and $47.4 million higher,
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respectively, than the comparable period in 2024, which impacted comparative operating income. Net income for the three months ended September 30, 2025 was $118.8 million, an increase of $3.6 million, or 3.1%, as compared with net income of $115.2 million in the three months ended September 30, 2024. Net income for the nine months ended September 30, 2025 was $304.4 million, a decrease of $13.9 million, or 4.4%, as compared with net income of $318.3 million in the nine months ended September 30, 2024.
Adjusted EBITDA, which is the primary financial measure by which we evaluate the operating performance of our segments, increased $18.3 million and $31.5 million or 6.1% and 3.7%, from $301.8 million and $859.7 million in the three and nine months ended September 30, 2024 to $320.2 million and $891.3 million in the three and nine months ended September 30, 2025, respectively. Additional information regarding Adjusted EBITDA, which is a non-GAAP measure, including a reconciliation of net income to Adjusted EBITDA, appears below under “Adjusted EBITDA.”
Net cash from operating activities for the nine months ended September 30, 2025 increased $37.8 million from $473.8 million in 2024 to $511.6 million primarily due to the impact of improved working capital in 2025 as compared to the prior year period, lower environmental expenditures and lower cash paid for taxes. Adjusted free cash flow, which management uses to measure our financial strength and ability to generate cash, was $248.1 million in the nine months ended September 30, 2025 as compared to $110.4 million in the comparable period of 2024, mainly due to higher cash flow from operating activities and lower cash paid for additions to property, plant and equipment net of proceeds from the sale of fixed assets. Additional information regarding adjusted free cash flow, which is a non-GAAP measure, including a reconciliation of net cash from operating activities to adjusted free cash flow, appears below under “Adjusted Free Cash Flow.
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Segment Performance
The primary financial measure by which we evaluate the performance of our segments is Adjusted EBITDA. The following table sets forth certain financial information associated with our results of operations (in thousands, except percentages):
 Summary of Operations
 Three Months EndedNine Months Ended
September 30,September 30,
 20252024
Change
% Change20252024Change% Change
Direct Revenues (1):
    
Environmental Services$1,331,300$1,297,187$34,1132.6%$3,892,448$3,779,080$113,3683.0%
Safety-Kleen Sustainability Solutions218,037232,139(14,102)(6.1)638,507679,459(40,952)(6.0)
Corporate
96(96)N/M186297(111)N/M
Total1,549,3371,529,42219,9151.34,531,1414,458,83672,3051.6
Cost of Revenues (2):
      
Environmental Services871,487874,414(2,927)(0.3)2,592,3002,541,01751,2832.0
Safety-Kleen Sustainability Solutions158,545171,120(12,575)(7.3)476,550496,441(19,891)(4.0)
Corporate
18,45810,0658,393N/M35,02124,75310,268N/M
Total1,048,4901,055,599(7,109)(0.7)3,103,8713,062,21141,6601.4
Selling, General & Administrative Expenses (3):
     
Environmental Services102,58490,27112,31313.6292,134281,17110,9633.9
Safety-Kleen Sustainability Solutions18,55519,793(1,238)(6.3)54,45560,616(6,161)(10.2)
Corporate
59,54961,945(2,396)(3.9)189,431195,113(5,682)(2.9)
Total180,688172,0098,6795.0536,020536,900(880)(0.2)
Adjusted EBITDA:      
Environmental Services357,229332,50224,7277.41,008,014956,89251,1225.3
Safety-Kleen Sustainability Solutions40,93741,226(289)(0.7)107,502122,402(14,900)(12.2)
Corporate
(78,007)(71,914)(6,093)(8.5)(224,266)(219,569)(4,697)(2.1)
Total$320,159$301,814$18,3456.1%$891,250$859,725$31,5253.7%
Adjusted EBITDA as a % of Direct Revenues:
Environmental Services (4)
26.8 %25.6 %1.2 %25.9 %25.3 %0.6 %
Safety-Kleen Sustainability Solutions (4)
18.8 %17.8 %1.0 %16.8 %18.0 %(1.2)%
Corporate (5)
(5.0)%(4.7)%(0.3)%(4.9)%(4.9)%— %
Total20.7 %19.7 %1.0 %19.7 %19.3 %0.4 %
________________
N/M = not meaningful
(1)Direct revenues are allocated to the segment performing the provided service or selling the product.
(2)Cost of revenues are shown exclusive of (i) accretion of environmental liabilities and (ii) depreciation and amortization which are presented separately on the Consolidated Statements of Operations.
(3)Selling, general and administrative expenses in this table are shown exclusive of stock-based compensation which is presented in Selling, general and administrative expenses on the Company’s Consolidated Statements of Operations, but is not included in the Company’s measurement of Adjusted EBITDA. See “Adjusted EBITDA” section below for a reconciliation of net income to Adjusted EBITDA.
(4)Calculated as a percentage of individual segment direct revenue.
(5)Calculated as a percentage of total Company direct revenue.
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Direct Revenues
There are many factors that can impact our revenues including, but not limited to: overall levels of industrial activity and economic growth in North America, competitive industry pricing, overall market incineration capacity including captive incineration closures, changes in the regulatory environment including those related to per- and polyfluoroalkyl substances (“PFAS”), impacts of acquisitions and divestitures, the level of emergency response services, government infrastructure investment, reshoring of domestic manufacturing, existence or non-existence of large scale environmental waste and remediation projects, weather related events, the number of parts washers placed at customer sites, miles driven and related lubricant demand, base and blended oil pricing, market supply for base oil products, market changes relative to the collection of used oil and foreign currency fluctuations. In addition, customer efforts to minimize hazardous waste and changes in regulation can impact our revenues.
Environmental Services     
Three Months EndedNine Months Ended
September 30,2025 over 2024September 30,2025 over 2024
(in thousands, except percentages)20252024
Change
%
Change
20252024Change% Change
Direct revenues$1,331,300 $1,297,187 $34,113 2.6 %$3,892,448 $3,779,080 $113,368 3.0 %
Environmental Services direct revenues for the three months ended September 30, 2025 increased $34.1 million from the comparable period in 2024. Technical Services revenue increased $53.6 million from the comparable period in the prior year with contributions across our portfolio of waste disposal services, including stronger volumes at our incinerator and landfill facilities as well as higher revenues from waste and remediation projects. On a comparative basis and excluding the impacts of the new incinerator in Kimball, Nebraska which is not expected to be running at full utilization until 2026, utilization at our incinerators was 92% in the three months ended September 30, 2025 as compared to 89% in the same period in 2024. Including the new Kimball incinerator, utilization at our incinerators was 88% during the three months ended September 30, 2025. Revenues for Safety-Kleen core service offerings for the three months ended September 30, 2025 grew by $18.8 million from the comparable period in 2024 due to improved overall pricing and demand for our containerized waste, vacuum and parts washer services. Field and Emergency Response service revenues decreased $27.9 million driven by fewer emergency response events in the three months ended September 30, 2025 as compared to the same period in 2024. Revenue from our Industrial Services operations also decreased $13.5 million due to lower turnaround activity and related high-value services as compared to 2024. Direct revenues for Canadian operations of the Environmental Services segment decreased by $1.3 million due to foreign currency translation.
Environmental Services direct revenues for the nine months ended September 30, 2025 increased $113.4 million from the comparable period in 2024 driven by incremental revenues from our legacy operations and acquisitive growth. Technical Services revenue increased $92.1 million from the comparable prior year period driven primarily by higher incineration and landfill volumes. On a comparative basis and excluding the impacts of the new incinerator in Kimball, Nebraska, utilization at our incinerators was 90% in the first nine months of 2025 as compared to 85% in the same period in 2024. Including the new Kimball incinerator, utilization at our incinerators was 85% during the nine months ended September 30, 2025. Revenues from Safety-Kleen core service offerings for the nine months ended September 30, 2025 grew by $51.6 million from the comparable period in 2024 due to improved pricing for our containerized waste, vacuum and parts washer services. Field and Emergency Response Services revenues for the nine months ended September 30, 2025 increased $14.2 million from the comparable period in 2024 driven by incremental revenue from the acquisition of HEPACO in late March 2024, partially offset by lower revenues from emergency response events in the second and third quarters. Revenue from our Industrial Services operations decreased $48.4 million due to lower turnaround activity and related high-value services as compared to 2024. Direct revenues for Canadian operations of the Environmental Services segment decreased by $9.4 million due to foreign currency translation.
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Safety-Kleen Sustainability Solutions
Three Months EndedNine Months Ended
September 30,2025 over 2024September 30,2025 over 2024
(in thousands, except percentages)20252024Change%
Change
20252024Change% Change
Direct revenues$218,037 $232,139 $(14,102)(6.1)%$638,507 $679,459 $(40,952)(6.0)%
In the three months ended September 30, 2025, SKSS direct revenues decreased $14.1 million compared to the same period in 2024. Revenues from the sale of base oil products decreased $18.1 million, resulting from lower pricing despite higher volumes sold. Revenues from the sale of blended oil products decreased $8.5 million, due to lower volumes sold and, to a lesser extent, lower pricing. These decreases were partially offset by a $12.2 million increase in revenue from the collection of used oil as we increased the pricing for these collection services starting in late 2024 and throughout 2025.
In the nine months ended September 30, 2025, SKSS direct revenues decreased $41.0 million compared to the same period in 2024. Revenues from the sale of base and blended oil products decreased $56.6 million and $27.8 million, respectively, resulting from lower pricing and lower volumes sold. Revenues from contract packaging services decreased $12.4 million from the same period in 2024. These decreases were partially offset by a $28.9 million increase in revenue from the collection of used oil attributed to the higher pricing for these collection services noted above and a $20.8 million increase in revenues from vacuum gas oil and specialty refinery products, driven by the acquisition of Noble in March 2024. Direct revenues for Canadian operations of the SKSS segment decreased by $2.3 million due to foreign currency translation.
Cost of Revenues 
We believe that management of operating costs is vital to our ability to remain price competitive. We continue to experience inflationary pressures across several cost categories, but most notably related to internal and external labor, healthcare, transportation, maintenance and energy related costs. We are also subject to uncertainties and cost increases due to the changing regulatory landscape, including trade restrictions and tariffs. We aim to manage these increases through constant cost monitoring and a focus on cost savings areas, including lowering employee turnover, as well as our overall customer pricing strategies designed to offset the inflationary impacts on our margins.
We continue to upgrade the quality and efficiency of our services through the development of new technology and continued modifications and expansion at our facilities while also leveraging certain fixed costs of our operating infrastructure. We invest in new business opportunities and aggressively implement strategic sourcing and logistics solutions, while also continuing to optimize our workforce and operating structure in an effort to manage our operating margins.
Environmental Services
Three Months EndedNine Months Ended
September 30,2025 over 2024September 30,2025 over 2024
(in thousands, except percentages)20252024
Change
%
Change
20252024Change% Change
Cost of revenues$871,487$874,414$(2,927)(0.3)%$2,592,300$2,541,017$51,2832.0 %
As a % of Direct revenues65.5 %67.4 %(1.9)%66.6 %67.2 %(0.6)%
Environmental Services cost of revenues for the three months ended September 30, 2025 decreased $2.9 million from the comparable period in 2024, and improved 1.9% as a percentage of revenues. The decrease in cost of revenues for the three months ended September 30, 2025, compared to the same period in 2024, was primarily attributable to a $10.4 million reduction in third-party labor costs reflecting the benefits of our ongoing workforce management strategies as well as a $3.0 million reduction in equipment and supply costs. These cost savings were partially offset by a $10.9 million increase in transportation, vehicle and fuel costs resulting from volume growth associated with waste and remediation projects in the three months ended September 30, 2025 as compared to the three months ended September 30, 2024.
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Environmental Services cost of revenues for the nine months ended September 30, 2025 increased $51.3 million from the comparable period in 2024, but slightly declined as a percentage of revenues. Commensurate with the revenue growth in the business and the acquisition of HEPACO discussed above, labor and benefits related costs increased $31.4 million, transportation, vehicle and fuel costs increased $12.7 million and equipment and supply costs increased $9.0 million for the nine months ended September 30, 2025 as compared to the nine months ended September 30, 2024. The remaining cost increase was spread across various cost categories and was driven by the incremental operations of the HEPACO acquisition. Partially offsetting these cost increases was a decrease of $22.6 million in third-party labor costs due to labor internalization efforts.
Safety-Kleen Sustainability Solutions
Three Months EndedNine Months Ended
September 30,2025 over 2024September 30,2025 over 2024
(in thousands, except percentages)20252024
Change
%
Change
20252024Change% Change
Cost of revenues$158,545$171,120$(12,575)(7.3)%$476,550$496,441$(19,891)(4.0)%
As a % of Direct revenues72.7 %73.7 %(1.0)%74.6 %73.1 %1.5 %
SKSS cost of revenues for the three months ended September 30, 2025 decreased $12.6 million from the comparable period in 2024, and as a percentage of revenues, these costs improved 1.0%. The overall cost decreases were driven by lower acquisition costs of used oil feedstock and a $2.5 million decrease in labor costs due to strategic headcount management actions implemented in the second quarter of 2025. Additional savings were realized through the targeted plant idling initiatives carried out in late 2024 and early 2025 which further reduced production costs. Collectively, these cost management efforts along with the lower revenue noted above, contributed to the overall improvement as a percentage of revenue.
SKSS cost of revenues for the nine months ended September 30, 2025 decreased $19.9 million from the comparable period in 2024, but increased 1.5% as a percentage of revenues. The overall cost decrease was driven by the lower sales volumes, discussed above, lower acquisition costs of used oil feedstock in the nine months ended September 30, 2025 compared to the prior period and a $2.8 million decrease in labor costs due to strategic headcount management actions implemented in the second quarter of 2025. These decreases were partially offset by incremental expenses from the Noble acquisition. As a percentage of revenues, these costs increased primarily due to market-related volume and pricing decreases discussed above in the SKSS direct revenues section and the overall mix of products sold during the nine months ended September 30, 2025 as compared to the same period in the prior year.
Selling, General and Administrative Expenses
We aim to manage our selling, general and administrative (“SG&A”) expenses in line with the overall performance of our segments and corresponding revenue levels. Our goal is to achieve this through enhanced technology, process improvements and strategic expense management. Expanding our support functions globally has led to both profitability and productivity improvements. We believe our ability to properly align these costs with business performance is reflective of our strong management of the businesses and further promotes our ability to remain competitive in the marketplace.
The SG&A expenses set forth below exclude stock-based compensation expense, which is presented in SG&A on the Company’s Consolidated Statement of Operations, but is not included in the Company’s measurement of Adjusted EBITDA.
Environmental Services
Three Months EndedNine Months Ended
September 30,2025 over 2024September 30,2025 over 2024
(in thousands, except percentages)20252024
Change
%
Change
20252024Change% Change
SG&A expenses$102,584$90,271$12,31313.6 %$292,134$281,171$10,9633.9 %
As a % of Direct revenues7.7 %7.0 %0.7 %7.5 %7.4 %0.1 %
Environmental Services SG&A expenses for the three months ended September 30, 2025 increased $12.3 million from the comparable period in 2024, and as a percentage of revenue increased slightly. Overall, labor and benefits related costs, including the impact of higher healthcare costs, increased $9.6 million with the remaining increase spread across various cost categories.
Environmental Services SG&A expenses for the nine months ended September 30, 2025 increased $11.0 million from the comparable period in 2024, remaining relatively consistent as a percentage of revenue. Overall, labor and benefits related costs increased $21.3 million compared to the same period in 2024, including higher employee healthcare costs and incremental costs
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related to the acquired HEPACO operations. The results for the nine months ended September 30, 2025 include the impact of reducing the estimated costs to remediate a site by approximately $10 million in the first quarter of 2025 to reflect our conclusion that loss was no longer probable based on the evaluation of available evidence.
Safety-Kleen Sustainability Solutions
Three Months EndedNine Months Ended
September 30,2025 over 2024September 30,2025 over 2024
(in thousands, except percentages)20252024
Change
%
Change
20252024Change% Change
SG&A expenses$18,555$19,793$(1,238)(6.3)%$54,455$60,616$(6,161)(10.2)%
As a % of Direct revenues8.5 %8.5 %— %8.5 %8.9 %(0.4)%
SKSS SG&A expenses for the three months ended September 30, 2025 decreased $1.2 million due to lower labor and benefit related costs. Despite the revenue decreases noted above, SKSS SG&A expenses as a percentage of revenue remained consistent, primarily driven by cost reduction initiatives that were executed late in 2024 and strategic headcount management actions implemented in the second quarter of 2025.
SKSS SG&A expenses for the nine months ended September 30, 2025 decreased $6.2 million and, despite the revenue decreases noted above, remained relatively consistent, as a percentage of revenues, as compared to the same period in 2024. Labor and benefit related costs decreased $5.4 million in the nine months ended September 30, 2025 as compared to the same period in 2024, mainly driven by the cost reduction initiatives noted above.
Corporate
Three Months EndedNine Months Ended
September 30,2025 over 2024September 30,2025 over 2024
(in thousands, except percentages)20252024
Change
%
Change
20252024Change% Change
SG&A expenses$59,549$61,945$(2,396)(3.9)%$189,431$195,113$(5,682)(2.9)%
As a % of Total Company Direct revenues3.8 %4.1 %(0.3)%4.2 %4.4 %(0.2)%
We manage our Corporate SG&A expenses commensurate with the overall total Company performance and direct revenue levels. Corporate SG&A expenses for the three months ended September 30, 2025 decreased $2.4 million when compared to the same period in 2024 and decreased slightly as a percentage of total Company revenues. The decrease in Corporate SG&A expenses was driven by reductions across several cost categories including professional and legal fees and severance and integration costs. These reductions were partially offset by a $2.1 million increase in expenditures related to system investments.
Corporate SG&A expenses for the nine months ended September 30, 2025 decreased $5.7 million as compared to the same period in the prior year and decreased slightly as a percentage of total Company revenues. The reduction in Corporate SG&A expenses was primarily attributable to a $6.2 million decrease in environmental and legal reserve costs, reflecting higher costs incurred in the prior year related to changes in estimates for a remedial liability associated with a Superfund site. Additionally, severance and integration-related expenses were $6.1 million lower year-over-year. These reductions were partially offset by a $6.3 million increase in expenditures related to systems investments.
Adjusted EBITDA
Management considers Adjusted EBITDA to be a measurement of performance that provides useful information to both management and investors. Adjusted EBITDA should not be considered an alternative to net income or other measurements under generally accepted accounting principles (“GAAP”). As reflected in the reconciliation below, we define Adjusted EBITDA as net income plus accretion of environmental liabilities, stock-based compensation, depreciation and amortization, net other expense, net interest expense and provision for income taxes. Adjusted EBITDA is not calculated identically by all companies, and therefore our measurements of Adjusted EBITDA, while defined consistently and in accordance with our existing credit agreement, may not be comparable to similarly titled measures reported by other companies.
We use Adjusted EBITDA to enhance our understanding of our operating performance, which represents our views concerning our performance in the ordinary, ongoing and customary course of our operations. We historically have found it helpful, and believe that investors have found it helpful, to consider an operating measure that excludes certain expenses relating to transactions not reflective of our core operations.
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The information about our operating performance provided by Adjusted EBITDA is used by our management for a variety of purposes. We regularly communicate Adjusted EBITDA results to our lenders since our loan covenants are based upon levels of Adjusted EBITDA achieved and to our board of directors and we discuss with the board our interpretation of such results. We also compare our Adjusted EBITDA performance against internal targets as a key factor in determining cash and equity bonus compensation for executives and other employees, largely because we believe that this measure is indicative of how the fundamental business is performing and being managed.
We also provide information relating to our Adjusted EBITDA so that analysts, investors and other interested persons have the same data that we use to assess our core operating performance. We believe that Adjusted EBITDA should be viewed only as a supplement to the GAAP financial information. We also believe, however, that providing this information in addition to, and together with, GAAP financial information provides a better understanding of our core operating performance and how management evaluates and measures our performance.
The following is a reconciliation of net income to Adjusted EBITDA for the following periods:
Three Months EndedNine Months Ended
 September 30,September 30,
(in thousands, except percentages)2025202420252024
Net income$118,799 $115,213 $304,384 $318,325 
Accretion of environmental liabilities3,499 3,618 10,710 10,139 
Stock-based compensation8,922 5,837 22,620 20,690 
Depreciation and amortization114,729 100,063 342,994 295,632 
Other (income) expense, net(3,517)1,123 (1,982)2,431 
Interest expense, net of interest income35,700 35,779 108,883 100,767 
Provision for income taxes42,027 40,181 103,641 111,741 
Adjusted EBITDA$320,159 $301,814 $891,250 $859,725 
As a % of Direct revenues20.7 %19.7 %19.7 %19.3 %
Depreciation and Amortization
Three Months EndedNine Months Ended
September 30,2025 over 2024September 30,2025 over 2024
(in thousands, except percentages)20252024Change%
Change
20252024Change% Change
Depreciation of fixed assets and amortization of landfills and finance leases$101,292 $86,201 $15,091 17.5 %$302,532 $254,888 $47,644 18.7 %
Permits and other intangibles amortization13,437 13,862 (425)(3.1)40,462 40,744 (282)(0.7)
Total depreciation and amortization$114,729 $100,063 $14,666 14.7 %$342,994 $295,632 $47,362 16.0 %
Depreciation and amortization for the three months ended September 30, 2025 increased by $14.7 million from the comparable period in 2024 due to higher amortization of landfill assets due to increased volumes, depreciation for the new Kimball incinerator, which was placed in service in December 2024, incremental depreciation for assets placed in service to support the growth of the business and higher finance lease amortization.
Depreciation and amortization for the nine months ended September 30, 2025 increased by $47.4 million from the comparable period in 2024 due to depreciation of fixed assets and amortization of intangible assets acquired from the March 2024 HEPACO and Noble acquisitions, higher amortization of landfill assets due to increased volumes, depreciation for the new Kimball incinerator, which was placed in service in December 2024, incremental depreciation for assets placed in service to support the growth of the business, and higher finance lease amortization.
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Interest Expense, Net of Interest Income
Three Months EndedNine Months Ended
September 30,2025 over 2024September 30,2025 over 2024
(in thousands, except percentages)20252024Change%
Change
20252024Change% Change
Interest expense, net of interest income$35,700 $35,779 $(79)(0.2)%$108,883 $100,767 $8,116 8.1 %
Interest expense, net of interest income for the three months ended September 30, 2025 remained relatively consistent with the comparable period in 2024.
Interest expense, net of interest income for the nine months ended September 30, 2025 increased $8.1 million from the comparable period in 2024 primarily due to higher levels of outstanding debt during the period resulting from the issuance of incremental debt on March 22, 2024. Interest expense was partially offset by a $4.0 million increase in interest income in the nine months ended September 30, 2025 compared to the same period in 2024.
As of September 30, 2025, the effective interest rate on our debt was 5.3%. For the remainder of 2025, and including the impact of the refinancing transactions that occurred in October 2025, we expect interest expense, net of interest income to remain relatively consistent with the prior year. For additional information regarding our current portfolio of long-term debt, see Note 11, “Financing Arrangements,” to the accompanying unaudited consolidated financial statements.
Provision for Income Taxes
Three Months EndedNine Months Ended
September 30,2025 over 2024September 30,2025 over 2024
(in thousands, except percentages)20252024Change%
Change
20252024Change% Change
Provision for income taxes$42,027$40,181$1,8464.6 %$103,641$111,741$(8,100)(7.2)%
Effective tax rate26.1 %25.9 %0.2 %25.4 %26.0 %(0.6)%
For the three months ended September 30, 2025, the increase in the provision for income taxes is consistent with the increase in pre-tax income, while our effective tax rate was relatively consistent with the same period in 2024.
For the nine months ended September 30, 2025, the provision for income taxes decreased $8.1 million compared to the same period in 2024. This decrease was driven by both lower pre-tax income as well as a slightly lower effective tax rate in 2025. The decrease in our effective tax rate for the nine months ended September 30, 2025 was driven by the write-off of a deferred tax asset with a full valuation allowance associated with the remedial liability change in estimate discussed above, which occurred in the first quarter of 2025.
Liquidity and Capital Resources 
We assess our liquidity in terms of our ability to generate cash to fund our operating, investing, and financing activities. Our primary ongoing cash requirements will be to fund operations, capital expenditures, interest payments and investments in line with our business strategy as of the date of this report. We believe our future operating cash flows will be sufficient to meet our future operating and internal investing cash needs. We monitor our actual needs and forecasted cash flows, our liquidity and our capital resources, enabling us to plan our present needs and fund items that may arise during the year as a result of changing business conditions or opportunities. Furthermore, our existing cash balance and the availability of additional borrowings under our revolving credit facility provide additional potential sources of liquidity should they be required.
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Summary of Cash Flow Activity
Nine Months Ended
September 30,
(in thousands)20252024
Net cash from operating activities$511,632 $473,833 
Net cash used in investing activities(276,587)(812,940)
Net cash (used in) from financing activities(166,528)408,555 
Net cash from operating activities
Net cash from operating activities for the nine months ended September 30, 2025 was $511.6 million as compared to $473.8 million in the same period of 2024. This $37.8 million increase in operating cash flows was primarily due to improvement in working capital balances as compared to the prior year period, lower environmental expenditures and lower cash paid for taxes for the nine months ended September 30, 2025 compared to the same period in 2024.
Net cash used in investing activities
Net cash used in investing activities for the nine months ended September 30, 2025 was $276.6 million, a decrease of $536.4 million from the comparable period in 2024. In the nine months ended September 30, 2024, we paid $474.0 million for acquisitions, including the purchase of HEPACO and Noble. Additions to property, plant and equipment, net of proceeds from sale and disposal of fixed assets, decreased $75.6 million, primarily due to notable project spend of $63.3 million on the Kimball incinerator strategic project in the nine months ended September 30, 2024. Partially offsetting these lower cash outflows was a $13.5 million lower cash inflow due to the timing of transactions within our wholly owned captive insurance company.
Net cash (used in) from financing activities
Net cash used in financing activities for the nine months ended September 30, 2025 was $166.5 million, as compared to net cash from financing activities of $408.6 million for the nine months ended September 30, 2024. The primary difference in financing activities was the incurrence of term loans net of discount and deferred financing costs of $491.1 million in 2024 to fund the acquisitions executed during the period. Additionally, in 2025, the Company paid $86.8 million more for repurchases of common stock while also receiving an additional $3.4 million in proceeds from the ESPP.
Adjusted Free Cash Flow
Management considers adjusted free cash flow, a non-GAAP measure, to be a measure of liquidity that provides useful information to management, creditors and investors about our financial strength and our ability to generate cash. Additionally, adjusted free cash flow is a metric on which a portion of management incentive compensation is based. We define adjusted free cash flow as net cash from operating activities, less additions to property, plant and equipment, plus proceeds from sales or disposals of fixed assets. When necessary, management adjusts for the cash impact of items derived from non-operating activities. Additionally, adjusted free cash flow excludes significant one-time growth investments, as they are not indicative of free cash flow generation for the current period. For 2025, these significant one-time growth investments include the early stages of construction of a solvent de-asphalting unit (“SDA”) and the build out of a hub facility in Phoenix, Arizona (“Phoenix Hub”). We expect to spend approximately $30 million and $15 million, respectively, in 2025 for these projects from which we expect to realize future long-term benefits. Adjusted free cash flow should not be considered an alternative to net cash from operating activities or other measurements under GAAP. Adjusted free cash flow is not calculated identically by all companies, and therefore our measurements of adjusted free cash flow may not be comparable to similarly titled measures reported by other companies.
The following is a reconciliation of net cash from operating activities to adjusted free cash flow for the following periods:
For the Nine Months Ended
 September 30,
(in thousands)20252024
Net cash from operating activities$511,632 $473,833 
Additions to property, plant and equipment(303,169)(369,826)
Proceeds from sale and disposal of fixed assets15,250 6,353 
Cash investment in Phoenix hub12,527 — 
Cash investment in solvent de-asphalting unit11,813 — 
$248,053 $110,360 
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Summary of Capital Resources
At September 30, 2025, cash and cash equivalents and marketable securities totaled $850.4 million, compared to $789.8 million at December 31, 2024. At September 30, 2025, cash and cash equivalents held by our Canadian subsidiaries totaled $94.9 million. The cash and cash equivalents and marketable securities balance for our U.S. operations was $755.5 million at September 30, 2025. Our U.S. operations had net operating cash inflows of $511.5 million for the nine months ended September 30, 2025.
We maintain a $600.0 million revolving credit facility of which, as of September 30, 2025, approximately $473.3 million was available to borrow under the facility, with letters of credit of $126.7 million outstanding.
Material Capital Requirements
Capital Expenditures
Capital expenditures during the first nine months of 2025 were $303.2 million as compared to $369.8 million during the first nine months of 2024. Notable project spend in 2024 included investments of $63.3 million in our Kimball incinerator facility and $15.8 million in our Baltimore, Maryland facility. In 2025, notable project spend includes $11.8 million spent on the SDA and $12.5 million spent for the purchase of a building for our Phoenix Hub. The remaining decrease in capital expenditures in the nine months ended September 30, 2025 as compared to September 30, 2024 is due to the timing of expenditures.
Overall, we expect that 2025 capital spending, net of disposals, will be in the range of $385.0 million to $415.0 million including the long-term growth investment of approximately $30 million for the SDA and $15 million for the Phoenix Hub. The total anticipated spending on the SDA project is expected to be in the range of $210.0 to $220.0 million and we expect that the project will be completed in 2028.
We anticipate that the remaining 2025 capital spending and future spending on the SDA will be funded by cash from our operations. Unanticipated changes in environmental regulations could require us to make significant capital expenditures for our facilities and adversely affect our results of operations and cash flow.
Financing Arrangements
Financing arrangements are discussed in Note 11, “Financing Arrangements,” to our unaudited consolidated financial statements included in this report. As discussed therein, we refinanced a portion of our debt portfolio in October 2025 whereby we issued $745.0 million aggregate principal amount of 5.750% unsecured senior notes due 2033 and we entered into secured senior term loans with an aggregate principal amount equal to $1,260.0 million, due in 2032. The proceeds of these transactions, together with cash on hand, were used to refinance all existing $1.5 billion secured senior term loans due in 2028 on October 9, 2025, and will be used to redeem all of the $545.0 million aggregate principal amount of outstanding 2027 Notes on October 31, 2025. On October 1, 2025, we issued a redemption notice with a 30 day notice period, as required pursuant to the indenture governing the 2027 Notes, indicating our intent to redeem these notes in full on October 31, 2025. The only amounts due under these new financing arrangements prior to maturity will be interest payments, due monthly for the secured senior term loans and bi-annually for the unsecured senior notes, and annual principal payments of approximately $12.6 million for the secured senior term loans. We expect to fund these interest and principal payments with cash from operations. Subsequent to the October 2025 financing transactions, the earliest maturity of our debt portfolio is 2029. As noted above, we also maintain our $600.0 million revolving credit facility with no amounts owed as of September 30, 2025. We continue to monitor our debt instruments and evaluate opportunities where it may be beneficial to refinance or reallocate the portfolio.
As of September 30, 2025, we were in compliance with the covenants of all of our debt agreements, and we believe we will continue to meet such covenants.
Common Stock Repurchases Pursuant to Publicly Announced Plan
The Company’s board of directors approved a plan to repurchase up to $1.1 billion of the Company’s common stock. During the three and nine months ended September 30, 2025, the Company repurchased and retired 208,206 and 526,336 shares, respectively, of the Company’s common stock for total expenditures of $50.0 million and $116.8 million, respectively. During the three and nine months ended September 30, 2024, the Company repurchased and retired 84,910 and 135,572 shares, respectively, of the Company’s common stock for total expenditures of $20.0 million and $30.0 million, respectively.
From the board’s approval of the repurchase plan through September 30, 2025, the Company has repurchased and retired a total of approximately 9.3 million shares of its common stock for $717.6 million under the board-approved plan, and, as of September 30, 2025, an additional $382.4 million remained available for the repurchase of shares.
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Environmental Liabilities
(in thousands, except percentages)September 30, 2025December 31, 2024Change% Change
Closure and post-closure liabilities$139,342 $129,788 $9,554 7.4 %
Remedial liabilities97,317 111,745 (14,428)(12.9)
Total environmental liabilities$236,659 $241,533 $(4,874)(2.0)%
Total environmental liabilities as of September 30, 2025 were $236.7 million, a decrease of $4.9 million compared to December 31, 2024. During the nine months ended September 30, 2025, the environmental liability balance decreased due to expenditures of $11.0 million and reductions in environmental liability estimates of $8.0 million. The reductions in environmental liability estimates were primarily driven by a decrease of approximately $10 million in the remedial liability for a site based on our conclusion that loss was no longer probable based on evaluation of available evidence. This change was recorded in the first quarter of 2025. These decreases were partially offset by accretion of $10.7 million and new environmental liabilities, including those recognized as a result of recent acquisitions, of $3.2 million.
We anticipate our environmental liabilities, substantially all of which we assumed in connection with our acquisitions, will be payable over many years and that cash flow from operations will generally be sufficient to fund the payment of such liabilities when required.
Events not anticipated (such as future changes in environmental laws and regulations) could require that payments to satisfy our environmental liabilities be made earlier or in greater amounts than currently anticipated, which could adversely affect our results of operations, cash flow and financial condition. Conversely, the development of new treatment technologies or other circumstances may arise in the future that may reduce amounts ultimately paid.
Letters of Credit
We obtain standby letters of credit as security for financial assurances we have been required to provide to regulatory bodies for our hazardous waste facilities and which would be called only in the event that we fail to satisfy closure, post-closure and other obligations under the permits issued by those regulatory bodies for such licensed facilities. As of September 30, 2025, there were $126.7 million outstanding letters of credit. See Note 11, “Financing Arrangements,” to the accompanying unaudited consolidated financial statements.
Critical Accounting Policies and Estimates
In the first nine months of 2025, there were no material changes to the information provided under the heading “Critical Accounting Estimates” included in our Annual Report on Form 10-K for the year ended December 31, 2024. For more information regarding our accounting policies, please refer to Note 2, “Significant Accounting Policies” to the accompanying unaudited consolidated financial statements.
ITEM 3.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK 
In the first nine months of 2025, there were no material changes to the information provided under Item 7A. “Quantitative and Qualitative Disclosures about Market Risk,” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024.
ITEM 4.    CONTROLS AND PROCEDURES
Evaluation of Disclosure Controls and Procedures
Based on an evaluation under the supervision and with the participation of our Co-Chief Executive Officers and Chief Financial Officer, as of the end of the period covered by this Quarterly Report on Form 10-Q, our Co-Chief Executive Officers and Chief Financial Officer have concluded that our disclosure controls and procedures (as defined under Rule 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) were effective as of September 30, 2025 to ensure that information required to be disclosed by us in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in Securities and Exchange Commission rules and forms and is accumulated and communicated to our management, including our Co-Chief Executive Officers and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.
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Changes in Internal Control over Financial Reporting
There were no changes in the Company’s internal control over financial reporting identified in connection with the evaluation required by paragraph (d) of Exchange Act Rules 13a-15 or 15d-15 that was conducted during the quarter ended September 30, 2025 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.
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CLEAN HARBORS, INC. AND SUBSIDIARIES
PART II—OTHER INFORMATION
ITEM 1.    LEGAL PROCEEDINGS
See Note 15, “Commitments and Contingencies,” to the unaudited consolidated financial statements included in Item 1 of this report, which description is incorporated herein by reference.
ITEM 1A.     RISK FACTORS
There have been no material changes to the risk factors from the information provided in Item 1A. in the Company's Annual Report on Form 10-K for the year ended December 31, 2024.
ITEM 2.     UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
Common Stock Repurchase Program
The following table provides information with respect to the shares of common stock repurchased by us for the periods indicated:
Period
Total Number of Shares
Purchased (1)
Average Price Paid Per Share (2)
Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs
(in thousands) (3)
July 1, 2025 through July 31, 202511,689 $229.55 — $432,383 
August 1, 2025 through August 31, 2025209,425 240.11 208,206 382,383 
September 1, 2025 through September 30, 20251,702 238.78 — 382,383 
Total222,816 $239.55 208,206 
    ________________
(1)    Includes 14,610 shares withheld by us from employees to satisfy employee tax obligations upon vesting of restricted stock granted to our employees under the Company’s equity incentive plans.
(2)    The average price paid per share of common stock repurchased under the Company’s stock repurchase program includes the commissions paid to brokers.
(3)    The Company’s common stock repurchases are made pursuant to the stock repurchase plan, which was most recently authorized by the board of directors on December 5, 2024, to repurchase up to $1.1 billion of the Company’s common stock. The stock repurchase plan will expire when all of the available allotted funds under the stock repurchase plan are depleted. As of September 30, 2025, the amount available for repurchase under the board-approved plan is $382.4 million. We have funded and intend to fund the repurchases through available cash resources. The stock repurchase program authorizes us to purchase our common stock on the open market or in privately negotiated transactions periodically in a manner that complies with applicable U.S. securities laws. The number of shares purchased and the timing of the purchases has depended and will depend on several factors, including share price, cash required for business plans, trading volume and other conditions. As part of our share repurchase program, we maintain a repurchase plan in accordance with Rule 10b5-1 promulgated under the Exchange Act. During the three months ended September 30, 2025, no shares were repurchased under the Rule 10b5-1 plan. Future repurchases may be made as open market or privately negotiated transactions as described above. We have no obligation to repurchase stock under this program and may suspend or terminate the repurchase program at any time.
ITEM 3.     DEFAULTS UPON SENIOR SECURITIES
None
ITEM 4.    MINE SAFETY DISCLOSURES
Not applicable
ITEM 5.     OTHER INFORMATION
During the quarter ended September 30, 2025, no director or “officer” (as defined in Rule 16a-1(f)) of Clean Harbors, Inc. adopted, modified or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K.
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Table of Contents
ITEM 6.    EXHIBITS
Item No. Description
4.1
Indenture, dated October 9, 2025, among Clean Harbors, Inc., the guarantors party thereto and U.S. Bank Trust Company, National Association, as trustee and notes collateral agent (incorporated by reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on October 10, 2025).
4.2
Form of Note (incorporated by reference to Exhibit 4.2 to the Company’s Current Report on Form 8-K filed on October 10, 2025).
10.1
Amendment and Restatement Agreement, dated October 9, 2025, by and among financial institutions party thereto, as lenders, Goldman Sachs Lending Partners LLC, as administrative agent and collateral agent, Clean Harbors, Inc., as borrower, and the guarantors from time to time party thereto (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on October 10, 2025).
10.2+
Clean Harbors, Inc. Amended and Restated Management Incentive Plan
31.1+ 
Rule 13a-14a/15d-14(a) Certification of the Co-CEO Michael L. Battles
31.2+
Rule 13a-14a/15d-14(a) Certification of the Co-CEO Eric W. Gerstenberg
31.3+ 
Rule 13a-14a/15d-14(a) Certification of the CFO Eric J. Dugas
32† 
Section 1350 Certifications
101.SCH+ Inline XBRL Taxonomy Extension Schema Document
101.CAL+Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB+Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE+Inline XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF+Inline XBRL Taxonomy Extension Definition Linkbase Document
104+Cover Page Interactive Data File (formatted as inline XBRL with applicable taxonomy extension information contained in Exhibits 101)
________________
+ Filed herewith.
† Furnished herewith.
39

Table of Contents
CLEAN HARBORS, INC. AND SUBSIDIARIES
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. 
 CLEAN HARBORS, INC.
 By:/s/ MICHAEL L. BATTLES
  Michael L. Battles
  Co-Chief Executive Officer and Co-President
Date:October 29, 2025  
 By:/s/ ERIC W. GERSTENBERG
  Eric W. Gerstenberg
  Co-Chief Executive Officer and Co-President
Date:October 29, 2025 
By:/s/ ERIC J. DUGAS
Eric J. Dugas
Executive Vice President and Chief Financial Officer
Date:October 29, 2025

40

FAQ

What were Clean Harbors (CLH) Q3 2025 revenues and EPS?

Revenues were $1,549,337 thousand and diluted EPS was $2.21.

How did segment revenues trend for CLH in Q3 2025?

Environmental Services was $1,318,580 thousand; Safety‑Kleen Sustainability Solutions was $230,757 thousand.

What were Safety‑Kleen Oil revenues in Q3 2025 for CLH?

Safety‑Kleen Oil revenue was $154,156 thousand, down from $182,001 thousand a year ago.

What liquidity did CLH report at quarter end?

Cash and cash equivalents were $759,197 thousand with $473,300 thousand available under the revolver.

What post‑quarter financing actions did CLH take?

Issued $745,000 thousand 5.750% notes due 2033 and obtained $1,260,000 thousand new term loans to refinance secured term loans; intends to redeem $545,000 thousand 2027 notes.

What was CLH’s nine‑month operating cash flow?

Net cash from operating activities was $511,632 thousand for the nine months ended September 30, 2025.

How many CLH shares were outstanding recently?

Shares outstanding were 53,431,835 as of October 24, 2025.
Clean Harbors Inc

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11.50B
50.40M
5.55%
94.51%
2.3%
Waste Management
Hazardous Waste Management
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