Rose Vice President, Corporate Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com 5 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended December 31, Year Ended December 31, 2020 2019 2020 2019 Sales $ 997.0 $ 658.6 $ 3,242.1 $ 2,862.7 Operating Income 65.0 20.5 189.3 156.8 Net income from continuing operations attributable to Avient shareholders 74.2 6.4 132.0 75.5 Basic earnings per share from continuing operations attributable to Avient shareholders $ 0.81 $ 0.08 $ 1.47 $ 0.98 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.81 $ 0.08 $ 1.46 $ 0.97 Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

Rose Vice President, Marketing and Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com 7 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Sales $ 824.4 $ 891.0 $ 1,670.1 $ 1,783.2 Operating Income 62.3 100.1 119.4 202.3 Net income from continuing operations attributable to Avient shareholders 22.1 62.8 42.9 127.2 Basic earnings per share from continuing operations attributable to Avient shareholders $ 0.24 $ 0.69 $ 0.47 $ 1.39 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.24 $ 0.68 $ 0.47 $ 1.38 Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

Rose Vice President, Marketing and Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com 7 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Sales $ 753.7 $ 823.3 $ 2,423.8 $ 2,606.5 Operating Income 34.3 40.6 153.7 242.9 Net income (loss) from continuing operations attributable to Avient shareholders 5.1 (27.4) 48.0 99.8 Basic earnings per share from continuing operations attributable to Avient shareholders $ 0.06 $ (0.30) $ 0.53 $ 1.09 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.06 $ (0.30) $ 0.52 $ 1.08 Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

Rose Vice President, Corporate Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com 7 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended December 31, Year Ended December 31, 2021 2020 2021 2020 Sales $ 1,201.5 $ 997.0 $ 4,818.8 $ 3,242.1 Operating Income 74.0 65.0 381.2 189.3 Net income from continuing operations attributable to Avient shareholders 29.8 74.2 230.8 132.0 Basic earnings per share from continuing operations attributable to Avient shareholders $ 0.33 $ 0.81 $ 2.53 $ 1.47 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.32 $ 0.81 $ 2.51 $ 1.46 Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

Rose Vice President, Corporate Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com 7 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Sales $ 1,219.8 $ 924.5 $ 3,617.3 $ 2,245.1 Operating Income 78.7 33.5 307.2 124.3 Net income from continuing operations attributable to Avient shareholders 52.9 1.7 201.0 57.8 Basic earnings per share from continuing operations attributable to Avient shareholders $ 0.58 $ 0.02 $ 2.20 $ 0.64 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.57 $ 0.02 $ 2.18 $ 0.64 Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

Rose Vice President, Marketing and Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com 6 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended March 31, 2024 2023 Sales $ 829.0 $ 845.7 Operating income 94.0 57.1 Net income from continuing operations attributable to Avient shareholders 49.4 20.8 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.54 $ 0.23 Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

Rose Vice President, Marketing and Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com 7 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended June 30, Six Months Ended June 30, 2024 2023 2024 2023 Sales $ 849.7 $ 824.4 $ 1,678.7 $ 1,670.1 Operating Income 72.5 62.3 166.5 119.4 Net income from continuing operations attributable to Avient shareholders 33.6 22.1 83.0 42.9 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.36 $ 0.24 $ 0.90 $ 0.47 Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

Goodrich Corporation, et al., held that PolyOne must pay the remediation costs at the former Goodrich Corporation Calvert City facility (now largely owned and operated by Westlake Vinyls), together with certain defense costs of Goodrich Corporation. The environmental obligation at the site arose as a result of an agreement between The B.F.Goodrich Company (n/ k/a Goodrich Corporation) and our predecessor, The Geon Company, at the time of the initial public offering in 1993. Under the agreement, The Geon Company agreed to indemnify Goodrich Corporation for certain environmental costs at the site.

Geon(TM) DB4822B ROSE NON-PHTH

Rose, Vice President, Corporate Communications, PolyOne Corporation, +1 440-930-3162, kyle.rose@avient.com