Using Hydrocerol with core-back molding technology, a process in which the mold is opened slightly to further reduce pressure and allow the foam core to expand, Avient helped the customer leverage density reduction to lower finished part weight.

Using Hydrocerol with core-back molding technology, a process in which the mold is opened slightly to further reduce pressure and allow the foam core to expand, Avient helped the customer leverage density reduction to lower finished part weight.

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; • The effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • Changes in laws and regulations regarding plastics in jurisdictions where we conduct business; • Fluctuations in raw material prices, quality and supply, and in energy prices and supply; • Production outages or material costs associated with scheduled or unscheduled maintenance programs; • Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including Avient Protective Materials (APM); • An inability to raise or sustain prices for products or services; • Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • Information systems failures and cyberattacks; • Amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; and • Other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation and any recessionary conditions Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Avient Corporation 19 Sustainability is integral to achieving our vision, mission, and performance that: • creates a safe and accepting environment that empowers associates to perform to their fullest potential • gives back to the communities where we work and live • enables customers to innovate solutions that help make the planet more sustainable • protects the environment by addressing climate change, conserving natural resources and preventing pollution • actively manages risk for investors & yields financial performance Avient Corporation 20 EXTERNAL ALIGNMENT DEEPLY EMBEDDED IN OUR CULTURE Avient Corporation 21 MEGATRENDS OFFER OPPORTUNITIES FOR SUSTAINABLE SOLUTIONS Advancements in Technology Transformation of Municipalities Lifestyle Refresh Rethinking Globalization Evolution of Healthcare Avient Corporation 22 SUSTAINABILITY TRENDS DRIVING AVIENT’S GROWTH Changes in consumer behavior driven by climate change & desire to reduce plastics waste Consumers seeking to buy more sustainable products from more sustainable companies Brand owner and retailer demand to meet sustainability targets & needs Rising emphasis on preserving and protecting natural resources & human life Increased current and pending government legislation and regulations CONSUMERS WANT SUSTAINABLE PRODUCTS Source: Simon Kucher 2022 Avient Corporation 23 85% Consider sustainability when they purchase 60% Rate sustainability as a key criterion in purchasing decisions 34% Are willing to pay more for sustainable products 25% Average premium consumers are willing to pay for sustainable products PURPOSE-DRIVEN CONSUMERS NOW LARGEST SEGMENT Source: IBM / National Retail Federation 2022 Avient Corporation 24 “Purpose-driven consumers seek products and brands that align with their values and provide health and wellness benefits. Conventionally-Marketed Products Growth 2017-2022 Sustainability-Marketed Products Conventionally-Marketed Products Sustainably-marketed products account for 1/5 of the market share ... yet deliver 1/3 of growth 9% 4% CAGR Source: NY Stern School of Business 2023 MAKING RECYCLABILITY COMMITMENTS Avient Corporation 26 100% recyclable, compostable or reusable packaging by 2025 35% recycled content for all plastic packaging by 2025 30% recycled content by 2030 100% recyclable, compostable or reusable packaging by 2025 20% renewable and recycled plastics by 2025 100% recyclable, compostable or reusable packaging by 2025 To source 100% recycled or renewable resources 25% recycled content by 2025 80% of waste recycled back into Nike products and other goods by 2025 25% recycled content by 2025 100% recyclable, compostable or reusable packaging by 2025 BRAND-SPECIFIC RECYCLED CONTENT ANNOUNCEMENTS x …the entire DASANI product lineup will be made from recycled plastic.

Sustainability remains at the add value to our customers, and ultimately deliver for ou needs of the present witho generations to do the sam Last year we were succes a challenging and unpred end market and regional impacted industry and c waste problem remains education eff orts on the run in parallel with collab With that as the backdkdrro around the wororldld went to of adjustetedd earnings per s saafefetyty first, used service as our proven four-pillar strate of Performance Products & agreement to acquire Clarian two truly transformational sh than 85% of our EBITDA to com The year well represented how Po the challenges of today and tomorr thinking and tireless work ethic in mo That’s what great companies do. Lean Six Sigma (LSS) is at the heart of our Operational Excellence strategic pillar, and was first introduced back in 2009. D O L L A R S Photos: (Top) Donating their time to mentor local youth, PolyOne associates in Pommerloch, Luxembourg increase self-esteem and inspire the importance of giving back in their community.

TEMPERATURE Material Rear °F (°C) Center °F (°C) Front °F (°C) Nozzle °F (°C) Melt °F (°C) Mold °F (°C) Nylon 6,6 14% NiCF 540–570 (280–300) 530–560 (275–290) 530–560 (275–290) 540–570 (280–300) 540–570 (280–300) 200–300 (90–150) Nylon 6,6 30% SS 540–570 (280–300) 530–560 (275–290) 530–560 (275–290) 540–570 (280–300) 540–570 (280–300) 200–300 (90–150) PBT 14% NiCF 510–410 (265–280) 490–540 (255–280) 480–530 (250–275) 480–530 (250–275) 480–530 (250–275) 150–250 (65–120) PC 14% NiCF 540–570 (280–300) 540–570 (280–300) 530–560 (275–290) 530–560 (275–290) 530–560 (275–290) 150–250 (65–120) ABS 14% NiCF 470–520 (240–270) 460–520 (240–270) 460–520 (240–270) 460–530 (240–275) 460–530 (240–275) 100–200 (40–90) PP 14% NiCF 440–480 (225–250) 440–480 (225–250) 430–470 (220–245) 420–460 (215–240) 420–460 (215–240) 125–175 (50–80) DRYING Material Temperature °F (°C) Time Minimum Moisture Maximum Moisture Nylon 6,6 14% NiCF 180 (80) 4–5 hours 0.05% 0.20% Nylon 6,6 30% SS 180 (80) 4–5 hours 0.05% 0.20% PBT 14% NiCF 250 (120) 6-8 hours 0.02% 0.03% PC 14% NiCF 250 (120) 3–4 hours 0.02% 0.02% ABS 14% NiCF 200 (90) 2–4 hours 0.05% 0.10% PP 14% NiCF 180 (80) 2–4 hours 0.20% 0.30% Equipment • Feed throats smaller than 2.5" may cause bridging due to pellet size - Larger feed throats will be more advantageous with long fiber EMI shielding resins • General purpose metering screw is recommended - Mixing/barrier screws are not recommended • L/D ratio - 18:1–20:1 (40% feed, 40% transition, 20% metering) • Low compression ratio - 2:1–3:1 • Deep flights recommended - Metering zone 3.5 mm - Feed zone 7.5 mm • Check ring - Three-piece, free-flowing check ring • General purpose nozzle (large nozzle tips are recommended) - Minimum orifice diameter of 7/32" - Tapered nozzles are not recommended for long fiber EMI shielding resins • Clamp tonnage: - 2.5–5 tons/in2 Gates • Large, free-flow gating recommended - 0.25" x 0.125" land length - 0.5" gate depth Runners • Full round gate design • No sharp corners • Minimum of 0.25" diameter • Hot runners can be used PROCESSING Screw Speed Slower screw speeds are recommended to protect fiber length Back Pressure Lower back pressure is recommended to protect fiber length Pack Pressure 60–80% of max injection pressure Hold Pressure 40–60% of max injection pressure Cool Time 10–30 seconds (depends on part geometry and dimensional stability) PROCESS CONSIDERATIONS Recommended – retain fiber length (maximize conductivity) • Low shear process • Low screw speed and screw RPM • Slow Injection speed • Fill to 99–100% on first stage of injection - Reduces potential nesting of fibers at gate location - Improves mechanical performance near gate location - Promotes ideal fiber orientation Resin Rich Surface • Achieved when using a hot mold temperature and longer cure times ≥ Max mold temperature recommendation • Improved surface aesthetic • Reduced surface conductivity • Could reduce attenuation performance in an assembly Fiber Rich Surface • Achieved when using a cold mold temperature and shorter cure times ≤ Minimum mold temperature recommendation • Improved surface aesthetic • Reduced surface conductivity • Could improve attenuation performance in an assembly www.avient.com Copyright © 2020, Avient Corporation.

Inspired by regenerative ecosystems found in nature, the circular economy proposes that all goods and products find their way back into supporting the same system from which they were created once a person is finished using them. You can find ideas applying this circular ecosystem to modern economics and manufacturing as far back as post-World War II. To stay competitive and relevant, businesses must create solutions for end- of-use materials and reintegrate them back into the ecosystem.

EY will provide us a description of work scope and supporting back-up documentation regarding the specific services they will provide. Pay-for-Performance. Results of Say-on-Pay Vote.

Sink-mark With chemical foaming, no sink-marks Core-Back Expansion molding allows greater density reductions than typical injection molding. The sliding back of the mold cavity at the end of fill allows a greater pressure drop and herewith more expansion. THERE ARE 3 PHASES IN THE CORE-BACK EXPANSION MOLDING Core-Back Expansion (CBE) molding principle 1.844.4AVIENT www.avient.com Copyright © 2023, Avient Corporation.

Decrease back pressure 3. Decrease back pressure 3. Reduce back pressure Machine related 1.

Barrel Temperatures °F (°C) PP Mineral-Filled PP Glass-Filled PP HDPE LDPE Rear Zone 360–390 (182–200) 400–420 (204–216) 415–435 (213–224) 400–420 (204–216) 370–390 (188–199) Center Zone 370–400 (188–204) 410–430 (210–221) 425–445 (218–229) 410–430 (210–221) 380–400 (193–204) Front Zone 390–410 (200–210) 420–440 (216–227) 435–455 (224–235) 420–440 (216–227) 390–410 (199–210) Nozzle 400–425 (204–219) 415–435 (213–224) 430–450 (221–232) 430–450 (221–232) 400–425 (204–219) Melt Temperature 400–425 (204–219) 415–435 (213–224) 430–450 (221–232) 430–450 (221–232) 400 - 425 (204–219) Mold Temperature °F (°C) 60–120 (16–49) Pack & Hold Pressure 50–75% of injection pressure Injection Velocity (in/s) 1.0–3.0 Back Pressure (psi) 50–100 Screw Speed (rpm) 30–100 Drying Parameters Hours @ °F (°C) Not typically required. Increase the vent depth to 0.010" at 0.100" away from the cavity and vent to atmosphere. • Vents should be placed at the intersection of each 90° bend in the runner system off of the cold slug well and vented to atmosphere PROBLEM CAUSE SOLUTION Black Specks Contamination • Purge barrel with general purpose PP • Verify correct nozzle is being used • Pull screw for cleaning Degraded/overheated material • Decrease melt temperature • Decrease back pressure • Decrease injection speed • Use appropriately sized barrel Brittleness Degraded/overheated material • Decrease melt temperature • Decrease back pressure • Decrease injection speed • Use appropriately sized barrel Gate location and/or size • Relocate gate to nonstress area • Increase gate size to allow higher flow rate and lower molded-in stress Burning Process related • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease injection rate Mold design • Clean, widen and increase number of vents • Increase gate size to reduce shear Fibers/Minerals on Surface or Uneven Surface Appearance Melt temperature too low • Increase melt temperature • Increase mold temperature • Increase injection speed Insufficient packing • Increase hold pressure and time • Increase shot size Flash Injection pressure too high • Decrease injection pressure • Increase clamp pressure • Decrease injection rate • Increase transfer position Excess material volume • Adjust transfer position • Decrease pack pressure • Decrease shot size • Decrease injection rate Melt and/or mold too hot • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease screw speed Loose clamp • Reset mold height • Increase clamp tonnage Troubleshooting Recommendations PROBLEM CAUSE SOLUTION Incomplete Fill Melt and/or mold too cold • Increase nozzle and barrel temperatures • Increase mold temperature • Increase injection rate Mold design • Enlarge or widen vents and increase number of vents • Check that vents are unplugged • Check that gates are unplugged • Enlarge gates and/or runners • Perform short shots to determine fill pattern and verify proper vent location • Increase wall thickness to move gas trap to parting line Shot size • Adjust transfer position to 98% full • Increase shot size Nozzle Drool Nozzle temperature too hot • Decrease nozzle temperature • Decrease back pressure • Increase screw decompression Shrink Too much shrink • Increase cooling time • Decrease mold temperature Too little shrink • Decrease cooling time • Increase mold temperature Sink Marks Part geometry too thick • Reduce wall thickness • Reduce rib thickness Melt too hot • Decrease nozzle and barrel temperatures • Decrease mold temperature Insufficient material volume • Adjust transfer position • Increase shot size • Increase injection rate • Increase packing pressure Troubleshooting Recommendations (continued) PROBLEM CAUSE SOLUTION Sticking in Mold Overfilled cavity • Decrease injection rate and pressure • Decrease hold pressure • Adjust transfer position • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease cooling time Mold design • Increase draft angle • Polish cores in direction of ejection Part is too hot • Decrease nozzle and barrel temperatures • Decrease mold temperature • Increase cooling time Warp Process related • Increase cooling time • Increase melt temperature • Increase pack pressure • Increase pack time • Decrease mold temperature Mold design • Inspect for non-uniform mold cooling Part design • Inspect for non-uniform wall thickness Temperature control unit incorrect temperature • Check settings • Inspect thermocouple Weld Lines Melt front temperatures are too low • Increase pack and hold pressure • Increase melt temperature • Increase injection rate • Increase mold temperature Mold design • Increase gate size • Perform short shots to determine fill pattern and verify proper vent location • Add vents and/or false ejector pin • Move gate location 1.844.4AVIENT www.avient.com Copyright © 2022, Avient Corporation.