Investor Presentaiton

SOFTWOOD LUMBER DISPUTE Minimal exposure to duties with 77% of lumber capacity based in the US U.S. COUNTERVAILING & ANTI-DUMPING CASH DEPOSIT RATES COMPANY 2017-20 (1) 2020-21 (2) 2021-22 (3) West Fraser 23.56% 8.97% 11.38% Canfor 20.52% 4.62% 21.04% Tolko 22.07% 8.99% 18.32% Resolute 17.90% 20.25% 30.22% JD Irving 9.38% 4.23% 15.82% All Others (Includes Interfor) 20.23% 8.99% 18.32% INTERFOR INTERFOR SOFTWOOD LUMBER DUTIES HIGHLIGHTS US$163 MM Duties on Deposit Cumulative duties of US$163 MM have been paid by Interfor since the inception of the current trade dispute and are held in trust by the US Government; most of which are off-balance sheet <15% Shipments Exposed to Duties Interfor's shipments into the US from Canada represent <15% of Interfor's total company-wide sales volumes (1) Reflects final cash deposit rates announced by the US Department of Commerce on December 28, 2017. (2) Reflects final AR1 cash deposit rates announced by the US Department of Commerce on November 24, 2020. (3) Reflects preliminary rates announced by the US Department of Commerce on May 21, 2021 - subject to change. 17

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