Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. Senior management also uses operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance. EBITDA and Adjusted EBITDA are non-GAAP financial measures that management uses in evaluating operating performance.

Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. FX -1.5% FX -0.5% Total Avient -2.0% Q 1 2024 R ES U LT S Q1 2024 PERFORMANCE VS. EBITDA and Adjusted EBITDA are non-GAAP financial measures that management uses in evaluating operating performance.

Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. Senior management uses adjusted operating income, adjusted EPS, and working capital to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and that current levels may serve as a base for future performance. Platform operating income mix percentage 2005Y* 2008Y* 2010Y* 2012Y* 2012PF** H1 2013*** Global Specialty Engineered Materials $ 0.4 $ 17.6 $ 49.7 $ 47.0 $ 47.7 $ 32.5 Global Color, Additives and Inks 4.3 28.1 37.7 66.8 81.6 54.7 Designed Structures & Solutions - - - - 20.9 10.5 Specialty Platform $ 4.7 $ 45.7 $ 87.4 $ 113.8 $ 150.2 $ 97.7 Performance Products and Solutions 75.7 31.3 54.0 74.9 37.4 27.5 Distribution 19.5 28.1 42.0 66.0 66.0 33.1 SunBelt Joint Venture 91.9 28.6 18.9 - - - Corporate (51.5) (425.1) (27.7) (87.6) (87.9) (37.1) Operating income (loss) GAAP $ 140.3 $ (291.4) $ 174.6 $ 167.1 $ 165.7 $ 121.2 Less: Corporate operating expense (income) 51.5 425.1 27.7 87.6 87.9 37.1 Operating income excluding Corporate $ 191.8 $ 133.7 $ 202.3 $ 254.7 $ 253.6 $ 158.3 Specialty platform operating mix percentage 2% 34% 43% 45% 60% 62% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment. ** Pro Forma results include Spartech and Glasforms acquisitions, Specialty Coatings reclass and exclude the Resin business assets. *** Restated results to exclude the Resin business and to remove Specialty Coatings from the Performance Products and Solutions segment into Global Color, Additives and Inks segment.

Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. Senior management uses adjusted operating income, adjusted EPS, and working capital to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and that current levels may serve as a base for future performance. Platform operating income mix percentage 2005Y* 2008Y* 2010Y* 2012Y* 2012PF** H1 2013*** Global Specialty Engineered Materials $ 0.4 $ 17.6 $ 49.7 $ 47.0 $ 47.7 $ 32.5 Global Color, Additives and Inks 4.3 28.1 37.7 66.8 81.6 54.7 Designed Structures & Solutions - - - - 20.9 10.5 Specialty Platform $ 4.7 $ 45.7 $ 87.4 $ 113.8 $ 150.2 $ 97.7 Performance Products and Solutions 75.7 31.3 54.0 74.9 37.4 27.5 Distribution 19.5 28.1 42.0 66.0 66.0 33.1 SunBelt Joint Venture 91.9 28.6 18.9 - - - Corporate (51.5) (425.1) (27.7) (87.6) (87.9) (37.1) Operating income (loss) GAAP $ 140.3 $ (291.4) $ 174.6 $ 167.1 $ 165.7 $ 121.2 Less: Corporate operating expense (income) 51.5 425.1 27.7 87.6 87.9 37.1 Operating income excluding Corporate $ 191.8 $ 133.7 $ 202.3 $ 254.7 $ 253.6 $ 158.3 Specialty platform operating mix percentage 2% 34% 43% 45% 60% 62% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment. ** Pro Forma results include Spartech and Glasforms acquisitions, Specialty Coatings reclass and exclude the Resin business assets. *** Restated results to exclude the Resin business and to remove Specialty Coatings from the Performance Products and Solutions segment into Global Color, Additives and Inks segment.

In addition to these high-performance characteristics, this healthcare portfolio offers a reduced carbon footprint over the product life cycle because PK production emits up to 61 percent less carbon dioxide (CO2) than nylon. Some of the information arises from laboratory work with small-scale equipment which may not provide a reliable indication of performance or properties obtained or obtainable on larger-scale equipment. You have the responsibility to conduct full-scale end-product performance testing to determine suitability in your application, and you assume all risk and liability arising from your use of the information and/or use or handling of any product.

16803-02 EXPE2600 WHITE 1417 WHITE USP661 11015WOW WILFLEX OASIS HO MIXING WHITE

Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. Senior management also uses operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance. EBITDA and Adjusted EBITDA are non-GAAP financial measures that management uses in evaluating operating performance.

Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. Senior management also uses operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance. EBITDA and Adjusted EBITDA are non-GAAP financial measures that management uses in evaluating operating performance.

Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. Q1 2025 results Copyright © . 2025 7 Color, Additives & Inks – Q1 2025 performance Sales 515 520 Adj. Color, Additives & Inks END MARKETS REGIONS 34% 21% 15% 11% 8% Packaging Telecom 1%Energy 1% 34% US & Canada Latin America Europe, Middle East Construction 15Copyright © .

Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. Q1 2025 results Copyright © . 2025 7 Color, Additives & Inks – Q1 2025 performance Sales 515 520 Adj. Color, Additives & Inks END MARKETS REGIONS 34% 21% 15% 11% 8% Packaging Telecom 1%Energy 1% 34% US & Canada Latin America Europe, Middle East Construction 15Copyright © .