Investor Presentaiton

Containerboard Annual capacity: 1,575 k s.t. Manufacturing 6th largest containerboard producer in N.A. (CAN $M) 2,112 14% 2,009 2,000 1,918 44% 1,840 1,827 54% 1,652 24.1% 22.3% 21.0% 441 86% 1,500 410 403 20.5% 372 16.3% Recycled Virgin Linerboard Medium 381 343 328 321 15.0% 1,000 247 Converting 164 500 230 214 11% 54% Canada of 2021 sales of 2021 sales 0 17% of 2021 sales 17% USA 2017 2018 2019 2020 2021 of 2021 sales LTM Q2 2022 Sales Operating Income -Adj. OIBD & Margin 2021 INTEGRATION RATE²: 73% 2017 - LTM Q2 2022 adjusted OIBD1 CAGR: 6.8% (1) Please click here and here for supplemental information on non-IFRS measures. (2) Including associates, JVs. 14

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