PG 41012 PU PP PIGMENT GREEN 36 PG 41046 PEARL BU PP

PG 144269.00 PEARL PU PE PG 97265.00 FROST GY PE MB2480A CLEAR NO PIGMENT

GREEN 2.5 G 4/8 PP DK GREEN 5535 CHARCOAL WMC-17-147-7

GREEN 356 PEARL OUTER GREEN 356 INNER BRONZE BROWN DDC-7-63-1

GREEN UV REV PINK #522 E-12 7 GREEN 13670

XRU-2428 PIGMENT BLEND FOR 213.64 PG 259810.00 PU PET UV PG 259811.00 PU PET UV

PG 22426 PEARL WT APET DARK GREEN NO PIGMENT

50% Red Pigment Waterbase 50% White Pigment Waterbase STAN-TONE HCC-106866 GREEN

AVIENT CORPORATION S E C O N D Q U A R T E R 2 0 2 3 R E S U L T S (NYSE: AVNT) J U L Y 2 7 , 2 0 2 3 D I S C L A I M E R 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 ( T O TA L C O M PA N Y ) 7 $845 $824 Guidance Actual $130 $131 Guidance Actual Sales Adjusted EBITDA (in millions) $0.60 $0.63 Guidance Actual Adjusted EPS (in millions) Q2 2023 PERFORMANCE VS. GUIDANCE ( T O TA L C O M PA N Y ) 8 15.4% 15.9% Guidance Actual Adjusted EBITDA Margin % Better-than-expected margins driven by: • Favorable mix - strong demand for composite applications • Raw material deflation Q2 EBITDA BRIDGE ( T O TA L C O M PA N Y ) 9 ($ millions) CAI: Price / Mix 7) Deflation 11) SEM: Price / Mix 2) Deflation 6) Net Price Benefit 26) Wage and Energy Inflation (10) Cost Reductions 13) FX (2) Q2 2023 Actual $131) Adjusted EBITDA Q2 2022 Pro Forma $ 172) Demand (68) • Demand conditions vs.