NYMAX™ BIO BIO-BASED POLYAMIDE SOLUTIONS PROCESSING GUIDE 1 NYMAX BIO Formulated in glass fiber-filled or unfilled materials, Nymax™ BIO formulations utilize between 16 and 47 percent natural filler from renewable plant-based raw materials, reducing the carbon footprint value significantly at the beginning of the product lifecycle. These highly engineered formulations deliver comparable performance to traditional PA66 glass fiber- filled materials, plus the bio-derived solutions offer lower warpage and have excellent surface appearance and colorability. Regrind is not suggested—glass fiber reinforce material will lose strength after regrind Mold Design Recommendations Gates 1.

Advanced Composites Explained OnForce™ LFT Long-Fiber Reinforced Thermoplastic Composites - Product Bulletin GlasArmor and ThermoBallistic composite ballistic panels are suitable for indoor and outdoor use in commercial, governmental, industrial and residential applications

LOADING DOCK SHELTERS R E I N F O R C I N G S T A Y S Replacement for steel or composite stays to provide reliable seal from external environment: • Withstand repeated flex and twisting, pass rigorous proprietary flexural testing requirements • Maintain performance in extreme temperatures • Enabled repeated twisting and flexing without failure, up to 90˚ bends, due to exceptional mechanical properties • Customized finishing to meet specific shape and edge surface requirements • Improved supply reliability with product manufactured in Montrose, CO Gordon Composites™ Thermoset Composite Springs KEY REQUIREMENTS WHY AVIENT? https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/gordon-composites-thermoset-laminates-barstock

NEVER SUMMER S N O W B O A R D S • Lightweight reinforcement that combines both structure and flexibility • Corrosion and moisture resistant • Consistent, durable performance • Provided structural integrity with strong yet flexible composite materials • Prevented rot and corrosion in a waterproof core layer • Added fatigue and stress resistance for reliable performance and long product life • Simplified manufacturing with consolidated material, reducing VOCs and labor intensive composite lay-up assembly Gordon Composites™ thermoset laminates KEY REQUIREMENTS WHY AVIENT? https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/gordon-composites-thermoset-laminates-barstock

$86 $123 $0.53 $0.89 Q1 2021 – ORGANIC PERFORMANCE 3 Sales Adjusted Operating Income $991 $1,162 + 17% + 43% + 68% (1) (1) (1) Q1 2021 SEGMENT PERFORMANCE 4 CAI $536 $609 ($ in millions) SEM Distribution $64 $89 +14% +39% $290 $363 $19 $24 +25% +26% $185 $217 $22 $34 +17% +55% SPECIALTY EBITDA MARGIN EXPANSION 5 CAI (1) 2018-2020 financial information is pro forma to include a full year of Clariant Masterbatch business acquisition 15.3% 15.2% 16.2% 19.1% 2018 2019 2020 Q1 2021 14.8% 15.2% 17.6% 19.4% 2018 2019 2020 Q1 2021 SEM • Continued portfolio transformation to high-growth end markets and sustainable solutions • Clariant Masterbatch synergy realization • Investments in composites and outdoor high performance applications drive growth and mix improvements CAI EBITDA MARGIN EXPANSION 6 Legacy CAI 18.9% 18.9% 21.0% 2019 2020 Q1 2021 Legacy 11.9% 13.8% 17.4% 2019 2020 Q1 2021 • Early synergy capture translating to the bottom line • Positive mix with growth in healthcare, consumer and packaging end-markets • World-class vitality index of 36% represents sales from products introduced in the last five years. This innovation drives performance and is reflective of consistent, strategic investments in our portfolio…and people. 2020 Pro forma $991 $86 Sustainable Solutions 15 11% 6 Healthcare 28 22% 6 Composites 6 10% 3 Growth in Emerging Regions 44 30% 10 Other 53 10% 7 Sub-total $1,137 15% $118 FX Impact 25 - 2 Synergies - - 11 Incentives, Travel, Other Employee Costs - - (8) 2021 Actual $1,162 17% $123 Q1 2021 ORGANIC SALES AND OPERATING INCOME 7 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Sales Growth Rate Operating Income$ millions 8 Wire & Cable Transportation Industrial Healthcare Packaging Consumer Q1 2020PF Q1 2021 (2) Financial information is presented on a constant currency basis (1,2) (42% of total revenue) (58% of total revenue) Q1 END MARKET SALES PERFORMANCE +17% +14% +8% +10% +8% +22% +5% +24% Q 2 AN D FU LL Y EA R 2021 O U TLO O K $69 $112 $0.42 $0.80 ORGANIC GROWTH PROJECTIONS – Q2 10 Sales Adjusted Operating Income $870 $1,100 + 26% + 62% + 90% (1) (1) (1) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition FULL YEAR GUIDANCE INCREASED 11 Sales Adj. We will deliver for our stakeholders through multiple value creation levers—many of which are unique to Avient: o Demand for sustainable solutions, healthcare, and composites, together with Clariant Masterbatch revenue synergies, that will drive 2021 revenue growth of 14% and long-term growth in excess of GDP o Clariant Masterbatch cost synergy capture will result in significant near-term benefit In addition, we remain committed to increasing annual dividends in line with earnings growth and opportunistically buying back shares, all while remaining modestly levered.

reSound™ NF Natural Fiber Reinforced Formulations OnForce™ LFT Long Fiber Reinforced Composites

Polypropylene Nucleating Agents Hiformer™ NuAge™  nucleating agents give polypropylene converters added control and efficiency by speeding and regulating the crystallization process.

The new container, to be made from an impact-modified polypropylene, needed good sidewall stiffness and excellent impact resistance. Teams from both companies worked closely to understand the specific property needs, and then searched for an impact modifier solution that the manufacturer could readily blend into polypropylene at the molding machine.

The new container, to be made from an impact-modified polypropylene, needed good sidewall stiffness and excellent impact resistance. Teams from both companies worked closely to understand the specific property needs, and then searched for an impact modifier solution that the manufacturer could readily blend into polypropylene at the molding machine.

Hammerhead™ Marine Panels: with a weight savings of more than 50% versus plywood, these continuous-fiber reinforced thermoplastic sandwich panels offer boat manufacturers a lighter, more efficient alternative to traditional marine construction materials. Its EMI/RFI portfolio – including new long-fiber conductive materials – helps shield ADAS cameras, sensors and electronic control units to eliminate cross talk. Lightweighting is also part of this trend, and its Polystrand™ thermoplastic composite continuous fiber tapes and laminates are providing the structural strength to replace metals while amplifying design freedom.