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.

This usually still results in unbalanced filling and is not a recommended design.2 “H” Pattern Runner This type of runner delivers a geometrically balanced type of fill, and is recommended for most multi-cavity tools. Only naturally balanced runner systems (“H” patterns) are recommended. The blue arrows show the flow of material in figure 51.

STAN-TONE EPX- BLUE Geon(TM) MB3114A Black 70 FR FF STAN-TONE DB-15597 HI LITE BLUE

TR BLUE ENGAGE 293C UV GM YELLOW 70 GHSLR STAN-TONE DB-15597 HI LITE BLUE

MX2360 BLUE GILL 70% RCL-6 STAN-TONE DB-15597 HI LITE BLUE

MC-71777PE BLUE/WHITE MC-72018PE STOCK WHITE 70% BLOW MOLD STAN-TONE DB-15597 HI LITE BLUE

CAROLINA BLUE 47N PEARL 70% WHITE STAN-TONE DB-15597 HI LITE BLUE

HD BLUE WHITE 70% TIO2/HIPS CARRIER STAN-TONE DB-15597 HI LITE BLUE

ROYAL BLUE DB3820 YELLOW 70 DURO STAN-TONE DB-15597 HI LITE BLUE

DX1 WHITE 656-70 DX1 BLUE 767-50 STAN-TONE DB-15597 HI LITE BLUE