STOCK TITAN
  1. Home
  2. Sec-filings
  3. WPRT
  4. [6-K] WESTPORT FUEL SYSTEMS INC. Current Report (Foreign Issuer)

Westport Fuel Systems (WPRT) plans auditor change from KPMG to Deloitte

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
6-K

Rhea-AI Filing Summary

Westport Fuel Systems Inc. has reported a planned change of auditor. KPMG LLP has notified the company that it will not stand for reappointment as auditor for the year ending December 31, 2026.

Subject to approval at the next annual shareholder meeting, Deloitte LLP has been appointed to fill the vacancy from the date of that meeting until the close of the following annual meeting. The audit committee and board approved the resignation and appointment on May 8, 2026. Westport states that KPMG’s reports on financial statements from January 1, 2024 to May 8, 2026 contained no modified opinions and that there are no reportable events. KPMG confirms it agrees with the company’s notice, and Deloitte confirms it agrees with statements regarding its appointment and has no basis to disagree with the remaining statements.

Positive

  • None.

Negative

  • None.

Insights

Auditor change to Deloitte appears routine, with no reported disputes.

Westport Fuel Systems is transitioning its external auditor from KPMG to Deloitte, effective after shareholder approval at the next annual meeting. The company indicates the audit committee and full board approved the move on May 8, 2026.

Westport notes that KPMG’s reports on financial statements from January 1, 2024 to May 8, 2026 had no modified opinions, and it reports no “reportable events” under National Instrument 51-102. KPMG’s letter states it agrees with the company’s notice, while Deloitte agrees with the statements about its appointment.

This combination—no modified opinions, no reportable events, and agreement letters from both firms—typically characterizes a procedural auditor rotation rather than a dispute-driven change. Future company disclosures will show how Deloitte’s tenure develops, but this filing alone does not signal a clear shift in financial condition.

Former auditor resignation year-end Year ending December 31, 2026 KPMG will not stand for reappointment for this fiscal year
Board approval date May 8, 2026 Audit committee and board approved resignation and appointment
Audit report coverage period January 1, 2024 to May 8, 2026 Period during which KPMG issued no modified opinions
KPMG agreement letter date May 11, 2026 Date of KPMG letter agreeing with the company’s notice
Deloitte agreement letter date May 15, 2026 Date of Deloitte letter agreeing with statements 2 and 3
National Instrument 51-102 regulatory
"This Notice is delivered to you pursuant to National Instrument 51-102 - Continuous Disclosure Obligations"
National Instrument 51-102 is a Canadian securities rule that requires public companies to regularly publish clear, standardized information about their finances and significant developments, such as quarterly and annual reports, management discussion and analysis, and notices of material changes. For investors it acts like a rule forcing businesses to keep their financial “windows” clear and up to date, making it easier to compare companies, spot risks, and make informed decisions.
reportable events regulatory
"in the opinion of Westport, there are no "reportable events" (as such term is defined in NI 51-102)"
modified opinion financial
"none of the Former Auditor's reports on any of Westport's financial statements ... expressed a modified opinion"
Former Auditor financial
"KPMG LLP (the "Former Auditor"), has delivered notice dated May 7, 2026"
Successor Auditor financial
"Deloitte LLP ("Successor Auditor") has been appointed as the auditor of Westport"
Form 6-K: How Foreign Companies Report to the SEC →

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 
 
FORM 6-K 
 
REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934
 
For the month of May 2026
 
Commission File Number: 001-34152
 
 
WESTPORT FUEL SYSTEMS INC. 

 (Translation of registrant's name into English)

 1691 West 75th Avenue, Vancouver, British Columbia, Canada, V6P 6P2 

 (Address of principal executive offices)
 
 
Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.
 
S   Form 20-F    £    Form 40-F
 
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): o
 
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o

INCORPORATION BY REFERENCE

Exhibits 99.1, 99.2 and 99.3 to this report on Form 6-K are hereby incorporated by reference into the Company's Registration Statement on Form F-3 (File no. 333-289669) and the Registration Statements on Form S-8 (File Nos. 333-248912, 333-211726, and 333-168847).

EXHIBIT INDEX
Exhibit Description
99.1
Notice of Change of Auditor
99.2
Letter from predecessor auditor addressed to Canadian securities regulatory authorities
99.3
Letter from successor auditor addressed to Canadian securities regulatory authorities
 
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.
 


 WESTPORT FUEL SYSTEMS INC.
  
 By:/s/ Elizabeth Owens
 Name: Elizabeth Owens
 Title:Chief Financial Officer
 
Date: May 21, 2026

Westport ™ May 8, 2026 KPMG LLP PO Box 10426 Deloitte LLP 410 W. Georgia Street Vancouver, British Columbia V6B 0S7 777 Dunsmuir Street, 11th floor Vancouver, British Columbia V7Y 1K3 AND TO: British Columbia Securities Commission, as Principal Regulator Ontario Securities Commission Dear Sirs: Alberta Securities Commission Financial and Consumer Affairs Authority of Saskatchewan Manitoba Securities Commission Autorite des Marches Financiers Nova Scotia Securities Commission Superintendent of Securities, Department of Justice and Public Safety, Prince Edward Island Financial and Consumer Services Commission of New Brunswick Office of the Superintendent of Securities, Service NL Securities and Exchange Commission Re: Notice Pursuant to National Instrument 51-102 This Notice is delivered to you pursuant to National Instrument 51-102 - Continuous Disclosure Obligations ("NI 51-102 ") in connection with the change of auditors of Westport Fuel Systems Inc. ("Westport"). In connection with this matter and pursuant to section 4.11 of NI 51-102, please be advised that: 1. KPMG LLP (the "Former Auditor"), has delivered notice dated May 7, 2026 that the Former Auditor will not stand for reappointment as the auditor of Westport in respect of the year ending December 31, 2026 (the "Resignation"); 2. Subject to approval by Westport's shareholders at the next annual meeting of shareholders (the "Meeting"), and effective as at the date of the Meeting, Deloitte LLP ("Successor Auditor") has been appointed as the auditor of Westport to fill the vacancy and to hold office from the date of the Meeting until the close of the next annual meeting of shareholders of Westport (the "Appointment"); 3. the Resignation and the Appointment were considered and approved by Westport's Audit Committee and board of directors effective May 8, 2026; 4. none of the Former Auditor's reports on any of Westport's financial statements relating to the period beginning January 1, 2024 and ending on May 8, 2026 expressed a modified opinion; and 1691 West 75th Avenue » Vancouver, BC, Canada V6P 6P2 » +1 604-718-2000 » westport.com

 

Westport ™ 5. in the opinion of Westport, there are no "reportable events" (as such term is defined in NI 51-102). NI 51-102 requires that the Former Auditor and Successor Auditor review this Notice and respond to this Notice by way of letter addressed to the applicable securities commissions (being those indicated above). Such letter must include a statement in respect of each of the statements above stating whether the Former Auditor and Successor Auditor either: (i) agree, (ii) disagree, and the reasons why, or (iii) has no basis to agree or disagree, in respect of each point. We would ask that you kindly prepare the required response letters and arrange for two originally­ signed copies of the same to be delivered to the undersigned ( along with an email containing an electronic version of the same) on or prior to May 15, 2026. We trust you will find the foregoing to be in order. If you have any questions or comments relating to this matter, please do not hesitate to contact the undersigned. Yours truly, WESTPORT FUEL SYSTEMS INC. (signed) "Elizabeth Owens" Elizabeth Owens Chief Financial Officer 1691 West 75th Avenue » Vancouver, BC, Canada V6P 6P2 » +1 604-718-2000 » westport.com

 

KPMG LLP PO Box 10426 777 Dunsmuir Street Vancouver BC V7Y 1K3 Canada Telephone (604) 691-3000 Fax (604) 691-3031 KPMG LLP, an Ontario limited liability partnership and member firm of the KPMG global organization of independent member firms affiliated with KPMG International Limited, a private English company limited by guarantee. KPMG Canada provides services to KPMG LLP. Document classification: Confidential. British Columbia Securities Commission, as Principal Regulator Ontario Securities Commission Alberta Securities Commission Saskatchewan Financial Services Commission - Securities Division The Manitoba Securities Commission Autorite des Marches Financiers Nova Scotia Securities Commission Prince Edward Island, Office of the Attorney General Securities Division New Brunswick, Securities Administration Branch Securities Commission of Newfoundland and Labrador May 11, 2026 Dear Madam: Re: Notice of Change of Auditors of Westport Fuel Systems Inc. We have read the Notice of Change in Auditor submitted to KPMG by Westport Fuel Systems Inc. dated May 8, 2026 (the “Notice”) and are in agreement with the statements contained in the Notice. Yours very truly,

 

Deloitte LLP 410 West Georgia Street Vancouver BC V6B 0S7 Canada Tel : 604-669-4466 Fax : 778-374-0496 www.deloitte.ca May 15, 2026 To: British Columbia Securities Commission Alberta Securities Commission Autorité des marchés financiers Financial and Consumers Affairs Authority of Saskatchewan Financial and Consumer Services Commission of New Brunswick Manitoba Securities Commission Nova Scotia Securities Commission Office of the Superintendent of Securities, Service NL Ontario Securities Commission Superintendent of Securities, Department of Justice and Public Safety, Prince Edward Island Dear Sirs/Mesdames: RE: Notice of Change of Auditor – Westport Fuel Systems Inc. (the “Company”) As required by subparagraph (6)(a)(ii) of section 4.11 of National Instrument 51-102, we have reviewed the change of auditor notice of the Company dated May 8, 2026 (the “Notice”) and, based on our knowledge of such information at this time, we agree with statements 2 and 3 as it relates to Deloitte LLP, and we have no basis to agree or disagree with statements 1, 4 and 5 contained in the Notice. Yours truly, /s/ Deloitte LLP Chartered Professional Accountants

 

Source: View Original Filing on SEC EDGAR

FAQ

What auditor change did Westport Fuel Systems (WPRT) announce in this 6-K?

Westport Fuel Systems announced that KPMG LLP will not stand for reappointment as auditor for the year ending December 31, 2026. Subject to shareholder approval at the next annual meeting, Deloitte LLP will be appointed as the new external auditor.

Did KPMG issue any modified audit opinions for Westport Fuel Systems (WPRT)?

Westport states that none of KPMG’s reports on its financial statements from January 1, 2024 to May 8, 2026 expressed a modified opinion. This suggests KPMG did not qualify or modify its views on those reported financial statements during that period.

Who approved the auditor change at Westport Fuel Systems (WPRT)?

The auditor resignation and new appointment were considered and approved by Westport’s audit committee and board of directors effective May 8, 2026. The final appointment of Deloitte still requires approval by shareholders at the next annual meeting.

Do KPMG and Deloitte agree with Westport Fuel Systems’ Notice of Change of Auditor?

KPMG’s letter states it has read Westport’s Notice of Change in Auditor dated May 8, 2026 and is in agreement with the statements. Deloitte’s letter agrees with statements 2 and 3 about its appointment and has no basis to agree or disagree with statements 1, 4, and 5.

When will Deloitte LLP become Westport Fuel Systems’ auditor if approved?

Deloitte LLP is expected to become Westport’s auditor effective as of the date of the next annual shareholder meeting, subject to shareholder approval. It will hold office from that meeting’s date until the close of the company’s next annual meeting of shareholders.

Filing Exhibits & Attachments

3 documents

Press Releases