The company’s approach to product design is deeply rooted in the principles of the circular economy and BIC’s 4R philosophy: reducing the amount of raw materials, including as much recycled or alternative materials as possible, making more refillable products, and improving the recyclability of both products and packaging. reSound™ REC post-industrial recycle (PIR) and post-consumer recycle (PCR) TPEs help brand owners create sustainable end-user products.

The company’s approach to product design is deeply rooted in the principles of the circular economy and BIC’s 4R philosophy: reducing the amount of raw materials, including as much recycled or alternative materials as possible, making more refillable products, and improving the recyclability of both products and packaging. reSound™ REC post-industrial recycle (PIR) and post-consumer recycle (PCR) TPEs help brand owners create sustainable end-user products.

The company’s approach to product design is deeply rooted in the principles of the circular economy and BIC’s 4R philosophy: reducing the amount of raw materials, including as much recycled or alternative materials as possible, making more refillable products, and improving the recyclability of both products and packaging. reSound™ REC post-industrial recycle (PIR) and post-consumer recycle (PCR) TPEs help brand owners create sustainable end-user products.

PCR grades are formulated with different types of recycled content: ocean plastics; food packaging from a variety of sources (including content that received a No Objection Letter from the U.S.

PCR grades are formulated with different types of recycled content: ocean plastics; food packaging from a variety of sources (including content that received a No Objection Letter from the U.S.

Q 2 2021 P E RFO R MA N CE U P DAT E $69 $122 $0.42 $0.87 Q2 2021 – ORGANIC PERFORMANCE 4 Sales Adjusted Operating Income $870 $1,235 + 42% + 77% + 107% (1) (1) (1) Q2 2021 SEGMENT PERFORMANCE 5 CAI $488 $624 ($ in millions) SEM Distribution $54 $86 +28% +59% $239 $404 $15 $24 +69% +60% $159 $241 $17 $37 +52% +118% SPECIALTY EBITDA MARGIN EXPANSION 6 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% 18.5% 2018 2019 2020 YTD 2021 14.8% 15.2% 17.6% 19.1% 2018 2019 2020 YTD 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 7 Legacy CAI 18.9% 18.9% 20.3% 2019 2020 YTD 2021 Legacy 11.9% 13.8% 16.8% 2019 2020 YTD 2021 • Synergy capture translating to the bottom line • Positive mix with growth in healthcare, consumer and packaging end-markets • World-class vitality index of 35% represents sales from products introduced in the last five years. ColorWorks innovation centers are specially designed to foster imagination and enable creative exploration of innovative solutions • Focus on customers’ sustainability initiatives through recyclability and post-consumer recycled materials for packaging applications • Supports 8-12% long-term revenue growth expectations across our sustainable solutions portfolio 8 2020 Pro forma $870 $69 Sustainable Solutions 66 37% 26 Healthcare 29 20% 7 Composites 12 36% 6 Growth in Asia / LATAM 47 39% 11 Other 190 48% 22 Sub-total $1,214 40% $141 COVID Response Applications (15) (8) FX Impact 36 4 Synergies 11 Incentives, Travel, Other Employee Costs (26) 2021 Actual $1,235 42% $122 Q2 2021 ORGANIC SALES AND OPERATING INCOME 9 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Sales Growth Rate Operating Income$ millions 10 Q2 2020PF Q2 2021 (2) Financial information is presented on a constant currency basis (1,2) (44% of total revenue) (56% of total revenue) Q2 END MARKET SALES PERFORMANCE +26% +38% +46% +103% +51% +9% +7% +67% Energy Telecom Building & Transportation Industrial Healthcare Packaging Consumer Q2 YEAR-OVER-YEAR EBITDA BRIDGE Q2 2020 Pro forma $ 106 Demand 69 11 EBITDA$ millions • Demand impact driven by growth in sustainable solutions and consumer products • Price increases more than offset raw material and supply chain impacts (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition CAI: Price / Mix 40 Inflation (32) SEM: Price / Mix 23 Inflation (18) Distribution: Price / Mix 81 Inflation (77) Net Price Benefit 17 Supply Chain Disruptions (14) COVID Response Applications (8) Synergies 11 Incentives, Travel, FX, Other (22) Q2 2021 Actual $ 159 Q1 2021 Actual $ 161 CAI: Price / Mix 32 Inflation (22) SEM: Price / Mix 15 Inflation (9) Distribution: Price / Mix 50 Inflation (48) Net Price Benefit 18 Supply Chain Disruptions (12) Demand / Seasonality (6) Other (2) Q2 2021 Actual $ 15912 EBITDA$ millions • Price increases more than offset raw material and freight inflation impacts • Demand impact driven by Q2 seasonality for the business Q1 TO Q2 SEQUENTIAL EBITDA BRIDGE Q 3 AN D FU LL Y EA R 2021 O U TLO O K $74 $98 $0.46 $0.68 ORGANIC GROWTH PROJECTIONS – Q3 14 Sales Adjusted Operating Income $925 $1,150 + 24% + 32% + 48% FULL YEAR GUIDANCE INCREASED 15 Sales Adj. Enable 100% of products manufactured for packaging applications to be recyclable or reusable.

In alignment with our customers, we set a 2030 sustainability goal to enable 100% of our materials for the consumer packaging market to be recyclable, reusable, or compostable. HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | IndexHOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 40Sustainability Report | 2023 40 https://www.avient.com/company/sustainability/sustainability-report/products/how-our-products-enable-sustainability Service Innovation Enables Quality Recycle Post-Consumer Recycle (PCR) Color Predictive Tool Innovation Award, Winner: Product Technology Innovation, Winner: Plastics Recycling Awards Europe 2023 Product Innovation Enables PCR Claims + Low CO2 reSound™ Ultra-Low Carbon Footprint TPE Innovation Award, Finalist: Rejoin™ 100% PCR Masterbatch Sustainable Packaging Innovation Finalist: U.S. HIGHLIGHTS from 2023: • Meet aggressive sustainability goals • Develop strategies to minimize plastic waste • Increase post consumer recycle (PCR) utilization and PCR availability • Meet legislation requirements • Solutions enabling increased use of PCR content • Specialty solutions incorporating recycle and biobased content • PCR Color Predictive Service, enabling increased use of recycled content • Avient Design Services to enable circular solutions RENEW Packaging Consumer Transportation 35-60% BIO-RENEWABLE CONTENT reSound™ BIO Thermoplastic Elastomers 35% LOWER CARBON EMISSIONS ColorMatrix™ SmartHeat™ RHC PCR Performance Additives EXPANDS PCR USAGE Design for Recycling CycleWorks™ Center for Mechanical Recycling 60% Nymax™ REC Recycled Nylon Formulations LEARN MORE RECYCLE CONTENT ENABLES 100% PCR UTILIZATION Cesa™ Nox A4R Additives for Enhanced Recycling BIOBASED FIBER ENABLING 10-20% LIGHTER WEIGHT SOLUTIONS Dyneema® SB301 Biobased UD Fiber 85% PCR Color Prediction Service Winner: Innovation Award, Plastics Industry Association & Product Technology Innovation, Plastics Recycling Awards Europe 2023 OF CONSUMERS CHOOSE BASED ON COLOR 35-40% RECYCLED CONTENT reSound™ REC PCR TPE for Automotive Interiors HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 42Sustainability Report | 2023 42 https://www.avient.com/products/thermoplastic-elastomers/resound-bio-thermoplastic-elastomers https://www.avient.com/products/polymer-additives/reheat-additives-pet/colormatrix-smartheat-rhc https://www.avient.com/resource-center/services/cycleworks-innovation-center-plastic-recycling https://www.avient.com/products/engineered-polymer-formulations/sustainable-formulations/nymax-rec-recycled-nylon-formulations https://www.avient.com/products/polymer-additives/antioxidant-additives https://www.dyneema.com/latest-news/dyneema-unveils-breakthrough-innovation https://www.avient.com/products/thermoplastic-elastomers/resound-rec-recycled-content-thermoplastic-elastomers REDUCE Avient’s portfolio of REDUCE solutions include design and materials solutions that enable customers to reduce weight, energy consumption and emissions.

In addition, the Nymax™ REC series offers PA6 and PA66 grades with post-industrial recycled (PIR) or post-consumer recycled (PCR) nylon to support a circular economy. Injection Molding Parameters Base Resin PA6 PA6 IM/ST PA6 GF PA6 GMF PA66 IM/ST PA66 GF Barrel Temperatures °F (°C) Rear Zone 450–490 (232–254) 440–490 (226–254) 490–510 (254–265) 480–500 (249–260) Center Zone 460–500 (238–260) 450–500 (232–260) 500–520 (260–271) 490–510 (254–265) 520–540 (271–282) Front Zone 470–510 460–510 (237–265) 500–520 (260–271) Nozzle 480–520 (249–271) 470–510 515–530 (268–276) 530–560 (276–293) 540–560 (282–293) Melt Temperature °F (°C) 480–520 (249–271) 470–510 515–530 (268–276) 540–560 (282–293) Mold Temperature °F (°C) 120–180 (49–82) 120–180 (49–82) 120–200 (49–93) 120–200 (49–93) 140–220 (60–104) 140–220 (60–104) Pack and Hold Pressure 50–80% of Injection Pressure Injection Velocity 1.0–4.0 in/sec Back Pressure 25–100 psi Screw Speed 35–80 rpm Drying Parameters 4 hours @ 180°F (82°C) Moisture Allowable 0.1–0.2% Cushion 0.250 in Screw Compression Ratio 2.0:1–2.5:1 Nozzle Type Reverse Taper Clamp Pressure 3–5 tons/in2 Processing Guide 3 Start Up & Shut Down Recommendations Purge Compound Polypropylene Recycling Recycling prime grades up to 20% is permissible and recycling PIR or PCR grades up to 10% is permissible.

Post-Consumer Recycled (PCR) Color Prediction Service is a digital service using sophisticated technology to help illustrate the color possibilities or limitations of certain types of PCR for customers, including polyolefins and polyethylene terephthalate (PET) resins.

The Complēt™ REC portfolio consists of long fiber reinforced composites incorporating post-consumer recycled (PCR) nylon 6 resin, post-industrial recycled (PIR) nylon 66 resin, and PIR thermoplastic polyurethane (TPU) resin. The PCR content is derived from end-of-life fishing nets that could otherwise contribute to ocean plastic.