West Fraser files 6-K on lumber capacity cut

West Fraser Timber Co. Ltd. filed a Form 6-K as a foreign private issuer, mainly to furnish an attached news release.

Accepted by SEC EDGAR 11/06/2025 - 05:12 PM EST

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Form Type

6-K

Rhea-AI Filing Summary

West Fraser Timber Co. Ltd. filed a Form 6-K as a foreign private issuer, mainly to furnish an attached news release. Exhibit 99.1 is a news release dated November 6, 2025 titled “West Fraser Reduces Lumber Capacity,” indicating the company has communicated a change to its lumber production capacity.

FAQ

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What does West Fraser Timber (WFG) report in its November 2025 Form 6-K?

West Fraser Timber’s November 2025 Form 6-K furnishes a single exhibit, a news release dated November 6, 2025 titled “West Fraser Reduces Lumber Capacity.” The filing serves to formally provide this corporate update to investors through the SEC’s reporting system.

What is Exhibit 99.1 in West Fraser Timber’s November 2025 Form 6-K?

Exhibit 99.1 is a news release dated November 6, 2025 titled “West Fraser Reduces Lumber Capacity.” It is the primary content furnished with the Form 6-K, indicating West Fraser has issued an official communication about a reduction in its lumber capacity.

Why did West Fraser Timber (WFG) submit this Form 6-K?

West Fraser Timber submitted this Form 6-K to furnish a corporate news release as an SEC filing. The attached Exhibit 99.1, dated November 6, 2025, announces that “West Fraser Reduces Lumber Capacity,” making this information part of its formal U.S. disclosure record.

When is the news release in West Fraser’s Form 6-K dated?

The news release attached as Exhibit 99.1 in West Fraser’s Form 6-K is dated November 6, 2025. This date aligns with the signing date on the report, indicating the timing of the company’s communication about reducing its lumber capacity.

Who signed West Fraser Timber’s November 2025 Form 6-K?

The Form 6-K was signed on behalf of West Fraser Timber Co. Ltd. by Christopher A. Virostek. He is identified in the document as Executive Vice-President and Chief Financial Officer, acting as the duly authorized officer for this submission.

What operational topic is highlighted in West Fraser Timber’s Exhibit 99.1?

The operational topic highlighted is a reduction in lumber capacity, as reflected in the title “West Fraser Reduces Lumber Capacity.” This phrase, used for Exhibit 99.1, signals that the associated news release addresses changes to West Fraser’s lumber production capacity.

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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 November 2025

Commission File Number: 001-39974

LOGO

WEST FRASER TIMBER CO. LTD.

(Exact name of Registrant, as specified in its charter)

1500 - 885 West Georgia Street

Vancouver, British Columbia

Canada, V6C 3E8

Tel: (604) 895-2700

(Address and Telephone Number of Registrant’s Principal Executive Offices)

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

Form 20-F ☐ Form 40-F ☒

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): ☐

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): ☐

EXHIBIT INDEX


Exhibit		Description

99.1		News release dated November 6, 2025 re: West Fraser Reduces Lumber Capacity

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.

Date: November 6, 2025

WEST FRASER TIMBER CO. LTD.

/s/ Christopher A. Virostek

Christopher A. Virostek

Executive Vice-President and Chief Financial Officer

Source: View Original Filing on SEC EDGAR