Mr. Sean McLaren reports

NOTICE OF SECOND QUARTER RESULTS CONFERENCE CALL

West Fraser Timber Co. Ltd. will hold an analyst conference call to discuss second quarter 2025 financial and operating results on Thursday, July 24, 2025, at 8:30 a.m. Pacific Time/11:30 a.m. Eastern Time.

To participate in the call, please dial 1-888-510-2154 (toll-free North America) or 437-900-0527 (toll number) or connect on the webcast.

Please let the operator know you wish to participate in the West Fraser conference call chaired by Sean McLaren, president and chief executive officer.

Following management's discussion of the quarterly results, the analyst community will be invited to ask questions.

The call will be recorded for webcasting purposes and will be available on the company's website. West Fraser's second quarter 2025 financial and operating results will be released on Wednesday, July 23, 2025.

About West Fraser Timber Co. Ltd.

West Fraser is a diversified wood product company with more than 50 facilities in Canada, the United States, the United Kingdom and Europe, which promotes sustainable forest practices in its operations. The company produces lumber, engineered wood products (OSB, LVL, MDF, plywood and particleboard), pulp, newsprint, wood chips and other residuals. West Fraser's products are used in home construction, repair and remodelling, industrial applications, papers, and tissue.