Cesa™ Light Additives provided high concentrate UV protection in nonwoven textiles with dosage at 50% ECCOH™ 5981 BK UV - Aerial Drop Cable UV Laser Marking Technology for FEP

CESA™ Flam Additives CESA™ Nox Additives CESA™ Light Additives

Cesa™ Nox A4R Additives for Recycling - Polyolefin Antioxidant for Enhanced Recycling Cesa™ Nox A4R is a specialized antioxidant additive that stabilizes polyolefins during processing, preventing the typical defects like discoloration, gels, and black spots—during initial, and future conversion steps and recycling loops.  Cesa™ Flame Retardants solution to meet extruder's key requirements

Cesa™ Nox A4R Additives for Recycling - Polyolefin Antioxidant for Enhanced Recycling Cesa™ Nox A4R is a specialized antioxidant additive that stabilizes polyolefins during processing, preventing the typical defects like discoloration, gels, and black spots—during initial, and future conversion steps and recycling loops.  Cesa™ Flame Retardants solution to meet extruder's key requirements

Avient Announces New Cesa™ Unify™ A4R Polyolefin Compatibilizer at Fakuma 2023   NEW Cesa™ Flame Retardant Additives, PTFE-Free and Non-Halogen for Polycarbonate – These new additives are formulated without PTFE, which is part of per- and polyfluorinated substances (PFAS). NEW Cesa™ Unify™ A4R - This latest addition to the Additives for Recycling portfolio of solutions is a polyolefin compatibilizer developed to enhance and support the use of recycled polyolefins.

Cesa™ Nox A4R Additive for Enhanced Recycling: developed to stabilize recycled polyolefins and protect them from degradation during processing, enabling the incorporation of increased recycled content into packaging films, maintaining high-quality levels of PCR and helping promote a more circular economy Cesa™ Anti-Fog Additives: created to help food packaging and horticultural films maintain clarity and prevent moisture buildup in hot and cold fog conditions and in mono and multilayer film, limiting the growth of bacteria and fungi to keep food fresh. Cesa™ WithStand™ Antimicrobial Additives: can reduce bacterial, mold, and fungal growth on the surface of packaging products.

Pro Forma Financial Information Avient acquired the Clariant Color business on July 1, 2020 (the “Acquisition Date”). To provide comparable financial results, Avient references “pro forma” financial metrics, which include the business results of Clariant Color for periods prior to the Acquisition Date. W H AT W E D O : M AT E R I A L S C I E N C E 5 CUSTOM FORMULATION SUSTAINABILITY FOR A BETTER TOMORROW Revenue From Sustainable Solutions* 2016-2021 $310 205 140 80 75 45 40 20 $915M2021 Sales ($ in millions) *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business Future Growth Revenue Assumptions From Sustainable Solutions: 8 - 12% 6 S E C O N D Q U A R T E R 2 0 2 2 R E S U L T S $122 $134 2021 2022 $0.87 $0.98 2021 2022 Q2 2022 PERFORMANCE ( T O TA L C O M PA N Y ) 8 Sales Adjusted Operating Income $1,235 $1,302 2021 2022 + 5% Adjusted EPS + 10% + 13% (in millions) (in millions) (+ 10% excluding FX) (+ 16% excluding FX) (+ 20% excluding FX) Q2 2022 SEGMENT PERFORMANCE 9 CAI $624 $649 Sales ($ in millions) SEM Distribution $86 $94 Operating Income + 4% + 9% $404 $443 Sales $24 $27 Operating Income + 10% + 13% (1) $241 $244 Sales $37 $37 Operating Income + 1% Flat (+ 10% excluding FX) (+ 16% excluding FX) (+ 6% excluding FX) (+ 3% excluding FX) Q2 2021 $1,235 $122 Sustainable Solutions 17 7% 7 Healthcare 23 14% 5 Composites (ex Outdoor High Performance) 10 20% 4 Growth in Asia / LATAM 5 3% 1 Other 69 11% 5 Sub-total $1,359 10% $144 Outdoor High Performance Impact (9) (5) Wage Inflation and Overtime (7) Other Supply Chain Costs (2) Clariant Color Integration Synergies 7 Incentives, Other Employee Costs 4 FX (48) (7) Q2 2022 $1,302 5% $134 Q2 2022 SALES AND OPERATING INCOME ( T O TA L C O M PA N Y ) 10 Sales Growth Rate Adjusted Operating Income$ millions Adjusted EBITDA Q2 EBITDA BRIDGE 11 Price increases more than offsets raw material and supply chain impacts Q2 2021 $ 159 Demand (29) $ millions CAI: Price / Mix 87 Inflation (58) SEM: Price / Mix 36 Inflation (24) Distribution: Price / Mix 45 Inflation (41) Net Price Benefit 45 Wage Inflation and Overtime (7) Other Supply Chain Costs (2) Clariant Color Integration Synergies 7 Incentives, Other Employee Costs 4 FX (7) Q2 2022 $ 170   China Lockdowns / Russia Impact $ (14) Outdoor High Performance (5) Transportation (5)  12 Q2 '21 Adjusted EPS 0.87$ Color, Additives and Inks 0.11 Specialty Engineered Materials 0.01 Distribution 0.03 Corporate Costs 0.01 F/X (0.05) Segment OI 0.11$ Interest Expense 0.03 Tax Rate (0.03) Q2 '22 Adjusted EPS 0.98$ Q2 EPS BRIDGE Key Updates • Provided progress on 2030 Sustainability Goals • Emphasized commitment to U.N.

Cesa™ Flame Retardant Additives Cesa™ WithStand™ Antimicrobial Additives Cesa™ Flame Retardant Additives

Colorant Chromatics FEP UV Laser Marking Product Bulletin_CN8.29-1

Cesa™ Laser Additives Laser welding solutions Laser plastic welding, also often referred to as transmission welding, is a process of bonding plastic parts using focused laser radiation. Our Cesa™ Laser Additives portfolio includes laser welding solutions that create high-quality, durable welds for various thermoplastics.