Trex Company, Inc. Pitch Deck

ATTRACTIVE LONG-TERM RESULTS Consolidated Adjusted Sales ($Ms) 19% CAGR $881 $745 $690 $565 $1,365 $1,197 2017 2018 2019 2020 2021 * * 2018 results exclude $6M non-recurring Sales charge 2022 TTM Consolidated Adjusted EBITDA ($Ms) ** 2019 results include $16M of startup and other costs related to new Enhance product launch *** 2020 results exclude $6.5M legacy non-cash surface flaking charge **** 2021 results exclude $54M goodwill impairment and $8.7M gain on insurance proceeds $395 20% CAGR $357 $258 $199 $202 $159 Consolidated Adjusted EBITDA Margin +80 BPS Trex 29.8% 29.3% 28.8% 28.9% 28.2% 27.1% 2017 2018 2019 2020 2021 2022 2017 2018 2019 * ** *** **** TTM * ** *** 2020 2021 2022 **** TTM 20 20

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