Our performance was supported by strong demand for our Dyneema® fiber technology used in personal protection applications and raw material deflation. We are focused on driving profitable, organic, top-line growth while expanding margins," added Dr. Examples include: • Dyneema®, the world’s strongest fiber™, enables unmatched levels of performance and protection for end-use applications, including ballistic personal protection, marine and sustainable infrastructure and outdoor sports • Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy • Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation and reduce carbon footprint • Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility Avient is certified ACC Responsible Care®, a founding member of the Alliance to End Plastic Waste and certified Great Place to Work®.

WHAT WE DO: WE ARE A FORMULATOR 6 CUSTOM FORMULATION M AY 3 , 2023 W EB CAS T Keeping Safety First o Relentless focus on best-in-class safety performance as an ACC Responsible Care® organization Exceeding Customer Expectations o Complementary technologies and customer relationships offer opportunity for future revenue synergies o Proven innovation-led commercial strategy with strong brands and participation across the full value chain Collaboration in Innovation o Leveraging Dyneema®, the world’s strongest fiber™, to accelerate growth of sustainable, ultralight and high performance applications People – Culture is Everything o Talented, passionate and collaborative associates drive an effective integration strategy o Strong Great Places to Work® scores reflect positive integration efforts in first year AVIENT PROTECTIVE MATERIALS INTEGRATION 8 AVIENT PROTECTIVE MATERIALS K E Y I N D U S T R I E S PERSONAL PROTECTION Military • Law Enforcement • First Responders • Body Armor • Helmets • Vehicle Protection 50% MARINE & SUSTAINABLE INFRASTRUCTURE Towing / Mooring • Aquaculture • Floating Wind • Offshore Cranes 30% CONSUMER Consumer • Outdoor High Performance • Safety Equipment 20% 9 Figures reflect approximate proportions of 2022 sales Q 1 P ER FO RM A N CE Q1 2023 PERFORMANCE VS. GUIDANCE (TOTAL COMPANY) 12 14.8% 15.8% Guidance Actual Adjusted EBITDA Margin % Better-than-expected margins driven by: • Resilient demand for composites and sustainable solutions which improved mix of higher margin applications • Deceleration of raw material inflation • Cost reduction activities Q1 EBITDA BRIDGE (TOTAL COMPANY) 13 $ millions CAI: Price / Mix 19) Inflation (4) SEM: Price / Mix 6) Inflation (4) Net Price Benefit 17) Wage and Energy Inflation (13) Cost Reductions 8) FX (6) Q1 2023 Actual $134) Adjusted EBITDA Q1 2022 Pro Forma $ 176) Demand (48) • Weak demand conditions in-line with previous expectations • Pricing continues to cover inflation of raw materials, wages and energy U.S. & Canada 40% EMEA 38% Asia 17% Latin America 5% Q1 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 18% Packaging 23% Healthcare 7% Industrial 16% Building and Construction 10% Defense 6%Telecommunications 4% Energy 5% END MARKET REVENUE (1) Total company sales and adjusted EBITDA of $846M and $134M, respectively, include intercompany sales eliminations and corporate costs $537M $91M $310M $64M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $134M$846M (1) 14 Transportation 11% Q1 2023 SALES BY REGION Yo Y C H A N G E ( E X C L . FX -11% FX -3% Total Avient -14% YoY Comparison against 2022 pro forma results • Aging infrastructure driving need for greater technological advancements and upgrades • Increased focus on strength and capacity of electrical grid plays into further adoption of composites into the market Where Avient Wins:  UV, weather-resistance, customized capabilities  Best-in-class customer responsiveness  Local high-quality manufacturing, unparalleled breadth of portfolio  Expanding position in insulators, utility poles, crossarms, and wind energy Avient Confidential 16 ENERGY 16 • Fiber-optic investments from AT&T, Corning, Commscope continue to drive industry toward innovation • $42B BEAD program in Infrastructure Bill to increase cable deployments; well-positioned to capitalize on “Made in America” requirement and “last mile” buildout Where Avient Wins:  Flame retardance, weather-resistance enables faster, safer, more reliable connections  Local manufacturing, unparalleled breadth of portfolio  Expanding position in insulation for wire jacketing, 5G buildout TELECOMMUNICATIONS Source: U.S.

Our overarching performance objective is to deliver organic topline growth with margin expansion on the bottom line. LEARN MORE Dyneema® from Bio-circular Feedstocks Dyneema fiber sourced from bio-circular raw materials and ISCC-certified offers reduced carbon footprint than traditional high molecular weight polyethylene fibers. PRESERVE Key Markets Key Customer Challenges • Preserving key natural resources • Increasing healthcare regulations • Enabling connectivity & alternative energy • Increasing regulatory compliance Avient Solutions & Services • Specialty formulations and additives for drug delivery devices • Non-PFAS containing functional additives • Advanced composite and fiber solutions for energy infrastructure • Regulatory compliance expertise PRESERVE Healthcare Energy Consumer LEARN MORE Avient Sustainability Fiber-Line™ Engineered Fibers Innovative carbon fiber reinforcement material enables pipeline infrastructure to be retrofitted for hydrogen energy distribution.

Company Trade Name: * Polyone Canada Inc Business Number: * 898451794 Mailing Address Delivery Mode General Delivery PO Box Rural Route Number Address Line 1 17 Tideman Drive about:/V003/Html http://www.canada.gc.ca/home.html http://www.servicecanada.gc.ca/eng/home.shtml http://www.canada.gc.ca/aboutgov-ausujetgouv/depts/menu-eng.html https://ec.ss.ec.gc.ca/auth/en/Services about:blank# about:blank# about:blank# about:/V003/Logout_Deconnexion http://ec.gc.ca/default.asp? lang=En&n=FD9B0E51-1 https://ec.ss.ec.gc.ca/auth/en/Services about:/ about:/ about:/ City * Orangeville Province/Territory ** Ontario Postal Code: ** L9W3K3 Physical Address Address Line 1 17 Tideman Drive City Orangeville Province/Territory ** Ontario Postal Code ** L9W3K3 Additional Information Land Survey Description National Topographical Description Parent Companies Empty Facility Validation The information in this section was copied from the Single Window Information Manager (SWIM) at the time the plan summary was created. Facility Information Facility Name: * Orangeville Plasticizer NAICS Code: * 326198 NPRI Id: * 2277 ON Reg 127/01 Id Facility Mailing Address Delivery Mode General Delivery PO Box Rural Route Number Address Line 1 15 ­ Tideman Drive City * Orangeville Province/Territory ** Ontario Postal Code: ** L9W3K3 Physical Address Address Line 1 15 Tideman Drive City Orangeville Province/Territory ** Ontario Postal Code ** L9W3K3 Additional Information Land Survey Description National Topographical Description NPRI Facility Location Latitude (decimal degrees) * 43.91330 Longitude (decimal degrees) * ­80.11580 UTM Zone UTM Easting UTM Northing Contact Validation The information in this section was copied from the Single Window Information Manager (SWIM) at the time the plan summary was created.

CASE STUDY: PLASTICOMP™ COMPLĒT™ LONG FIBER REINFORCED STRUCTURAL THERMOPLASTICS Challe nge Accepted. Their pursuit led them to carbon fiber composites and, subsequently, to Avient, a leading supplier of long fiber-reinforced thermoplastics and technologies. The wheel forks utilize a long carbon fiber-reinforced nylon 6/6 composite, while the wheel hub comprises long carbon fiber-reinforced thermoplastic polyurethane.

Caitlin Sexton, Associate Engineer-ELDP, Fiber-Line Employee Resource Groups (ERGs) at Avient LEAD (Leadership, Empowerment, Advancement, and Development) promotes inclusion by increasing access to the tools and resources necessary to build leadership skills and accelerate careers. We have been working with internal and external stakeholders to understand how we can achieve our goal to become carbon neutral in line with climate science. These efforts are in line with our commitment to sustainability and strengthen the health of our communities and operations worldwide.

Caitlin Sexton, Associate Engineer-ELDP, Fiber-Line Employee Resource Groups (ERGs) at Avient LEAD (Leadership, Empowerment, Advancement, and Development) promotes inclusion by increasing access to the tools and resources necessary to build leadership skills and accelerate careers. We have been working with internal and external stakeholders to understand how we can achieve our goal to become carbon neutral in line with climate science. These efforts are in line with our commitment to sustainability and strengthen the health of our communities and operations worldwide.

Liquid fiber colorants and additives for textiles with colorfastness, enhanced fiber properties, and a more efficient and sustainable dyeing process for gowns, masks, wound dressings, and more MagIQ™ Liquid Fiber Additives and Colorants

OFF-ROAD VEHICLE MANUFACTURER U N I F I E D S E A T I N G S H E L L • Consolidate parts to reduce manufacturing costs • Maintain performance while replacing metal seating frame with lightweight composite material • High durability to withstand harsh usage environments • Delivered long glass fiber reinforced thermoplastic solution providing metal-like performance with excellent toughness • Lowered component costs with single-piece injection molded seat shell • Utilized global capabilities to meet manufacturing supply chain needs Complēt™ Long Glass Fiber PA66 Composite KEY REQUIREMENTS WHY AVIENT? All Rights Reserved. https://www.avient.com/products/long-fiber-technology/long-fiber-technologies/compl-t-long-fiber-reinforced-structural-thermoplastics

SWIMMING POOL CLEANER OEM C L E A N E R C O N N E C T O R • Durable and will not rust • Dimensional stability • Easy to process • Delivered a corrosion-resistant, long glass fiber-reinforced material with excellent strength and modulus to replace steel • Offered low moisture absorption and good chemical resistance to maintain performance • Responded quickly and provided local technology support on mold design and injection process OnForce Long Glass Fiber Nylon Composite KEY REQUIREMENTS WHY AVIENT? All Rights Reserved. https://www.avient.com/products/long-fiber-technology/long-fiber-technologies/onforce-long-glass-fiber-reinforced-polypropylene-composites Slide 1: Swimming pool cleaner oem