Taiga Building Products Ltd. — Proxy Solicitation & Information Statement 2026

Apr 7, 2026

taiga building products

NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON MAY 7, 2026

NOTICE IS HEREBY GIVEN that the annual general meeting (the "Meeting") of the holders of common shares ("Common Shares") of Taiga Building Products Ltd. ("Taiga") will be held at Taiga Building Products' main office located at Suite 800, 4710 Kingsway, Burnaby, British Columbia on May 7, 2026, at 8:00 a.m. (Vancouver time) for the following purposes:

(a) to receive the audited consolidated financial statements of Taiga for the fiscal year ended December 31, 2025, together with the auditor's report thereon;
(b) to elect the directors of Taiga for the ensuing year;
(c) to appoint the auditors of Taiga for the ensuing year and to authorize the directors to fix their remuneration; and
(d) to transact such further or other business as may properly come before the Meeting or any adjournment(s) or postponement(s) thereof.

Accompanying this Notice of Meeting is a management information circular, a form of proxy and a financial statement request form. Only holders of Common Shares of record at the close of business on March 26, 2026 will be entitled to vote at the Meeting, or any adjournment(s) or postponement(s) thereof.

If you are a registered shareholder and are unable to attend the Meeting in person, please exercise your right to vote by completing the enclosed form of proxy and returning it to Computershare Investor Services Inc., 100 University Avenue, 9th Floor, Toronto, Ontario, M5J 2Y1 Attention: Proxy Department. In order to be valid for use at the Meeting, proxies must be received by Computershare Investor Services Inc., not less than 48 hours (excluding Saturdays, Sundays and statutory or civic holidays in Vancouver, British Columbia or Toronto, Ontario) before the fixed time of the Meeting, or any adjournment(s) or postponement(s) thereof. Further information with respect to voting by proxy is included in the accompanying management information circular. If you are a non-registered shareholder of Taiga and receive these materials through your broker or through another intermediary, please complete and return the materials in accordance with the instructions provided to you by your broker or by the other intermediary. Failure to do so may result in your shares not being eligible to be voted by proxy at the Meeting.

DATED at Burnaby, British Columbia this 3rd day of April, 2026.

BY ORDER OF THE BOARD OF DIRECTORS OF TAIGA BUILDING PRODUCTS LTD.

(signed) Ian Tong

Ian Tong

Chairman of the Board of Directors