Lower-concentration solutions can be developed to meet specific customer needs It works by injecting liquid color at high pressure into the polymer melt- flow between the end of the extruder, or melt-pipe, and the spin head. Avient’s liquid fiber colorant solutions can help achieve the color precision and color fastness of conventional spin-dyeing concentrates, while giving the production flexibility of traditional aqueous dyeing.

Engineered Polymer Services

LEADING PRODUCER OF CLOSURES FOR SPIRITS L U X U R Y C L O S U R E S • Replace metal while providing metallic look and feel • Customization of density and color • Easy processing • FDA compliance • Replaced metal with a weighted polymer solution to maintain high-quality perception • Minimized the appearance of chips from everyday wear better than metal by matching closure interior and metalized coating colors • Enabled the customer to introduce their luxury closures to a new market segment Gravi-Tech™ Density Modified Formulation KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION AESTHETICS + HAPTICS LEARN MORE Copyright © 2020, Avient Corporation. https://www.avient.com/products/engineered-polymer-formulations/eco-conscious-formulations/gravi-tech-density-modified

Electric Vehicle (EV) Charging Market Solutions for Level 1, 2, and DC public charging equipment INDUSTRY BULLETIN With funding a priority for the industry, considerable growth of the infrastructure supporting the EV charging market is expected. The Avient portfolio of solutions for the EV market includes a number of polymer additives and colorants that can improve the performance and aesthetics of electric vehicle charging stations. This literature shall NOT operate as permission, recommendation, or inducement to practice any patented invention without permission of the patent owner. 1.844.4AVIENT www.avient.com ADDITIVE TECHNOLOGIES Flame retardant additives Mitigates fire hazard by reducing flame spread and heat release Anti-static and conductive additives Controls build-up of static charges to reduce risk of fire and enhance safety Antimicrobial technology Reduces bacterial, mold and fungal growth on the surface and through the thickness of the part Light spectrum management Provides UV protection to prevent discoloration or degradation of mechanical properties for lasting outdoor durability and color fastness Scratch and mar resistant additives Adds protection to stand up to surface abrasion and wear and tear COLORANT TECHNOLOGIES UL 94 colorants Over 2,000 UL 94-recognized color concentrates, including for high temperature resins Special effect colorants Visual enhancements including metallic, granite, or pearlescent appearance Bio colorants and additives For use in bio-based plastics without compromising performance TECHNOLOGIES AVAILABLE TO ENHANCE PUBLIC CHARGING STATIONS Avient supports all of these solutions with a range of world-class services, including: • Polymer material expertise with a focus on sustainability • Application development expertise with global design centers • Regulatory compliance coordination to help mitigate risk • Reliable field technical services and support • Leading color trend and design services

CERTIFICATE OF INCORPORATION ON CHANGE OF NAME Company Number 3141094 The Registrar of Companies for England and Wales hereby certifies that under the Companies Act 2006: POLYONE CORPORATION UK LIMITED a company incorporated as private limited by shares, havingits registered office situated in England and Wales, has changed its name to: AVIENT MATERIAL SOLUTIONS UK LIMITED Given at Companies House on9th November 2021.

Microsoft PowerPoint - PolyOne Investor Presentation 5.4.20_v8 P E O P LE P RO D U CT S P LA N E T P E RF O R MAN C E JVs Performance Products & Solutions Distribution Specialty To be the world’s premier provider of specialized polymer materials, services and solutions To be the world’s premier provider of specialized polymer materials, services and sustainable solutions 2016 2017 2018 2019 Lightweighting Reduced Material Requirements Improved Recyclability Renewable Energy Applications Eco-conscious Bio-derived Content Reduced Energy Use VOC Reduction $275M $325M $355M $410M 14% Total Annual Growth 9% Organic Annual Growth PolyOne Corporation 33 Adjusted EPS attributable to PolyOne common shareholders is calculated as follows: 2009* 2010* 2011* 2012* 2013* 2014* 2015* 2016** 2017** 2018 2018*** Q1 2019*** 2019 Q1 2020 Net income from continuing operations attributable to PolyOne common shareholders Joint venture equity earnings, after tax Special items, before tax(1) Special items, tax adjustments(1) Adjusted net income from continuing operations attributable to PolyOne common shareholders $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 $ 144.6 $ 166.4 $ 173.5 $ 161.1 $ 87.7 $ 22.4 $ 75.5 $ 33.1 (19.0) (14.7) (3.7) — — — — — — — — — — — (48.7) 24.2 (48.1) 55.1 46.3 164.2 87.6 23.8 32.9 59.5 58.7 12.2 61.7 9.6 (27.2) (96.7) (24.7) (18.9) (13.7) (73.7) (58.7) (15.9) (24.8) (25.3) (25.1) (1.2) (5.9) (1.0) $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 $ 173.5 $ 174.3 $ 181.6 $ 195.3 $ 121.3 $ 33.4 $ 131.3 $ 41.7 Diluted shares 93.4 96.0 94.3 89.8 96.5 93.5 88.7 84.6 82.1 80.4 80.4 78.2 77.7 86.7 Adjusted EPS attributable to PolyOne common shareholders $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 $ 1.96 $ 2.06 $ 2.21 $ 2.43 $ 1.51 $ 0.43 $ 1.69 $ 0.48 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principle, discontinued operations or the related resegmentation. ** Pro forma for sale of Designed Structures and Solutions segment (DSS). *** Pro forma for sale of Performance Products and Solutions segment (PP&S).

Microsoft PowerPoint - PolyOne Investor Presentation 5.4.20_v8 P E O P LE P RO D U CT S P LA N E T P E RF O R MAN C E JVs Performance Products & Solutions Distribution Specialty To be the world’s premier provider of specialized polymer materials, services and solutions To be the world’s premier provider of specialized polymer materials, services and sustainable solutions 2016 2017 2018 2019 Lightweighting Reduced Material Requirements Improved Recyclability Renewable Energy Applications Eco-conscious Bio-derived Content Reduced Energy Use VOC Reduction $275M $325M $355M $410M 14% Total Annual Growth 9% Organic Annual Growth PolyOne Corporation 33 Adjusted EPS attributable to PolyOne common shareholders is calculated as follows: 2009* 2010* 2011* 2012* 2013* 2014* 2015* 2016** 2017** 2018 2018*** Q1 2019*** 2019 Q1 2020 Net income from continuing operations attributable to PolyOne common shareholders Joint venture equity earnings, after tax Special items, before tax(1) Special items, tax adjustments(1) Adjusted net income from continuing operations attributable to PolyOne common shareholders $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 $ 144.6 $ 166.4 $ 173.5 $ 161.1 $ 87.7 $ 22.4 $ 75.5 $ 33.1 (19.0) (14.7) (3.7) — — — — — — — — — — — (48.7) 24.2 (48.1) 55.1 46.3 164.2 87.6 23.8 32.9 59.5 58.7 12.2 61.7 9.6 (27.2) (96.7) (24.7) (18.9) (13.7) (73.7) (58.7) (15.9) (24.8) (25.3) (25.1) (1.2) (5.9) (1.0) $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 $ 173.5 $ 174.3 $ 181.6 $ 195.3 $ 121.3 $ 33.4 $ 131.3 $ 41.7 Diluted shares 93.4 96.0 94.3 89.8 96.5 93.5 88.7 84.6 82.1 80.4 80.4 78.2 77.7 86.7 Adjusted EPS attributable to PolyOne common shareholders $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 $ 1.96 $ 2.06 $ 2.21 $ 2.43 $ 1.51 $ 0.43 $ 1.69 $ 0.48 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principle, discontinued operations or the related resegmentation. ** Pro forma for sale of Designed Structures and Solutions segment (DSS). *** Pro forma for sale of Performance Products and Solutions segment (PP&S).

CUSTOM SOLUTION PROVIDES SIGNAL DAMPING AND HEAT RESISTANCE FOR ELECTRICAL CONNECTOR CASE STUDY: BERGAMID™ NYLON FORMULATIONS Challe nge Accepted. Traditionally, many connectors of this type are produced using liquid crystal polymers (LCPs) formulated with carbon fiber. THE IMPACT Avient’s solution was a unique, nylon-based material that met the all of the application’s performance requirements.

AEROSPACE INTERIORS OEM S E A T S P A C E R & A R M R E S T • Weight reduction to increase airliner fuel economy • Meet FAA safety requirements for FST compliance and 16G kinetic survivability • Agility to delivery solution within 8-month compressed product development timeline • Achieved 40% weight reduction generating $16,000 per year reduction in fuel costs • Optimized component designs for long fiber material and conducted FEA validation • Performed prototype molding and testing for load and impact specifications to expedite development Complēt™ Long Carbon Fiber PES Composite KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION LIGHTWEIGHTING LEARN MORE Copyright © 2020, Avient Corporation. https://www.avient.com/products/engineered-polymer-formulations/high-temperature-polymer-formulations/compl%C4%93t-long-fiber-reinforced-structural-thermoplastics

PERSONAL CARE DEVICES P A T I E N T M O B I L I T Y • Diminish the growth of harmful microbes on surfaces without compromising product performance • Achieve cohesive color across different polymeric materials with the addition of antimicrobial ingredients • Accelerate product development timeline • Preserved polymer performance by minimizing undesirable microbes • Designed a masterbatch solution that achieved color harmony between diverse polymeric materials even with the addition of antimicrobial ingredients • Accelerated speed to market by several weeks with Avient’s pre-tested material and supplier expertise while reducing costs of lab testing fees by up to $50,000 Cesa™ WithStand™ Antimicrobial Additives with OnColor™ Colorants KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION SAFETY + PREVENTION LEARN MORECopyright © 2022, Avient Corporation. https://www.avient.com/products/polymer-additives/performance-enhancement-additives/withstand-antimicrobial-additives