SILCOPAS BLUE 45663 STAN-TONE HCC-107451 H BROWN SILCOGUM BLUE 107454

8A30020MB BLUE H. BP-301238NMB BLUE

SEA BLUE TRITAN TX ELECTRIC BLUE 2935C VIOLET UMV 313-H

BLUE 293C PP 107 BLUE ROJO WENDY / TAPA H

DK BLUE CHILL XPA6 G15 H black. LIGHT BLUE LC 3

PE BLUE PEARL 2915C V2 XPPC HI H UV WHITE UV RHINO BLUE 3/5

5086 SKY BLUE RS/LS LIGHT BLUE H BLUE METALLIC

PA6 G30 H natural 050BU2061 DK BLUE SC BLUE ABS UV

680.00 Black 2% Black 3C 680.01 Brown 6% 4625C 680.02 Red 15% 7621C 680.03 Orange 6% 1595C 680.04 Yellow 6% 605C 680.05 Green 6% 7732C 680.06 Blue 10% 7697C 680.07 Violet 15% 7665C 680.08 Grey 5% 7539C 680.09 White 12% 7499C * Recommended let down ratio addition rates.

Microsoft PowerPoint - AVNT June IR Conferences_6.1.2023 1130AM AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) J U N E 2 0 2 3 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. GUIDANCE 12 14.8% 15.8% Adjusted EBITDA Margin % Better-than-expected margins driven by: • Resilient demand for composites and sustainable solutions which improved mix of higher margin applications • Deceleration of raw material inflation • Cost reduction activities Q1 EBITDA BRIDGE 13 $ millions CAI: Price / Mix 19) Inflation (4) SEM: Price / Mix 6) Inflation (4) Net Price Benefit 17) Wage and Energy Inflation (13) Cost Reductions 8) FX (6) Q1 2023 Actual $134) Adjusted EBITDA Q1 2022 Pro Forma $ 176) Demand (48) • Weak demand conditions in-line with previous expectations • Pricing continues to cover inflation of raw materials, wages and energy U.S. & Canada 38% 17% Q1 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 23% Building and 6%Telecommunications END MARKET REVENUE (1) Total company sales and adjusted EBITDA of $846M and $134M, respectively, include intercompany sales eliminations and corporate costs $537M $91M $310M $64M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $134M$846M (1) 14 Q1 2023 SALES BY REGION Yo Y C H A N G E ( E X C L . Avient Specialty Other Specialty / 2023E(%) 37 79 89 83 81 76 73 90 82 77 76 74 70 58 22 MULTIPLE EXPANSION Avient Specialty Other Specialty / Note: Avient reflects 2023 adjusted EBITDA guidance of $530M and closing share price of $36.50.