Except in the case of a pre-existing master agreement in effect between Buyer and Seller, no statement or agreement, oral or written, made before or at the signing of the relevant purchase order(s) shall vary or modify the written terms hereof, and neither party shall claim any amendment, modification or release from any provision hereof unless such change occurs in a writing signed by the other party and specifically identifying it as an amendment to these Terms and Conditions.

Orangeville Compound (Update 1) Report Preview National Pollutant Release Inventory (NPRI) and Partners Home Submission Management Help My Profile:Brian Greer Logout Ec.gc.ca Report Preview Report Details Company and Facility Details Permits Contacts Details Report Year 2016 Report Type: NPRI Report Status: Update 1 ­ Submitted Modified Date/Time: 13/03/2018 2:04 PM Report Update Comments: As per email from NPRI QC team Feb 13, 2018 Company Name: Polyone Canada Inc.

It enables: • Increased rPET content • Reduced CO2 emissions When added to PET preforms and bottles, ColorMatrix AAzure helps to: • Improve bottle quality - Reduced preform acetaldehyde by up to 80% - Improved mechanical strength - Lightweighting • Improve processability - Reduced bottle blowouts - Reduced scrap - Improved productivity • Reduce energy consumption during bottle blowing process ColorMatrix AAzure has a slight blue tint, which is useful for off-setting yellowing often associated with the use of rPET, and has minimal impact on final product color or aesthetics. ColorMatrix AAzure has shown to have a much improved impact on the recycling process, with reduced yellowing through multiple heat histories. LD R (% Impact of 5 Melt Heat Histories on Preform Color Reference ColorMatrix AAzure Reduction in AA Level 35% 55% 70% ColorMatrix AAzure allows for further optimization of the polymer weight distribution during the bottle blowing process, which improves mechanical strength and bottle quality.

During injection molding, longer fibers align and intertwine to form an internal skeletal network, enabling a unique set of performance characteristics, including: • High strength-to-weight ratio which facilitates metal replacement to achieve weight reduction • Added stiffness and strength to carry loads while resisting creep deformation • Increased toughness to absorb impact forces without permanent damage • High cyclical fatigue endurance to resist cracking and crack propagation • Mechanical performance that is retained across a wide temperature range • Improved dimensional stability with nearly isotropic properties and low thermal expansion • Corrosion and chemical resistance Long fiber composites provide a combination of stiffness, strength, and toughness performance enhancements not available together when using other reinforcing methods, while retaining the single- step processing simplicity of injection molding. Complēt™ MT Maximum toughness, long fiber reinforced nylons (polyamides) formulated for extra impact and fatigue resistance. OVERCOME MATERIAL CHALLENGES Deploy long fiber reinforced composites to meet these needs: • Metal replacement for weight reduction • Failure of lower performing plastics • Structural load carrying requirements • Increased impact or fatigue durability • Wide temperature range performance • Thermoplastic design freedom • Manufacturing process cost savings 1.844.4AVIENT www.avient.com Copyright © 2024, Avient Corporation.

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: the time required to consummate the proposed divestiture; the satisfaction or waiver of conditions in the sale agreement; any material adverse changes in the business supporting the PP&S assets being sold; the ability to obtain required regulatory or other third-party approvals and consents and otherwise consummate the proposed divestiture; our ability to identify and evaluate acquisition targets and consummate and integrate acquisitions; 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 polymer consumption growth rates and laws and regulations regarding plastics in jurisdictions where we conduct business; changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online; 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; an inability to raise or sustain prices for products or services; an ability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to acquisitions and integration, working capital reductions, cost reductions and employee productivity goals; information systems failures and cyberattacks; and other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation. Select Financial Information for Estimated Impacts of Discontinued Operations Estimated adjusted EPS from continuing operations and estimated adjusted EPS from discontinued operations are subject to change as the company finalizes accounting for the Performance Products and Solutions segment as held for sale and the related income tax impacts from the anticipated sale.

When showing constant dollar figures on GAAP and non-GAAP financial measures, the foreign exchange impact is calculated by using current foreign exchange rates and applying them to the prior period results. Unless otherwise stated, Adjusted EBITDA figures included in this presentation exclude the impact of special items as defined in our quarterly earnings releases. We also monitor earnings (defined as net income from continuing operations) before interest, taxes, depreciation and amortization (EBITDA) and adjusted EBITDA (EBITDA before the impact of special items) as a supplement to our GAAP measures.

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; • Disruptions or inefficiencies in our supply chain, logistics, or operations; • Changes in laws and regulations in jurisdictions where we conduct business, including with respect to plastics and climate change; • Fluctuations in raw material prices, quality and supply, and in energy prices and supply; • Demand for our products and services; • 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 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; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including the implementation of a cloud-based enterprise resource planning system, S/4HANA; • 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, geopolitical conflicts and any recessionary conditions; and • Other factors described in our Annual Report on Form 10-K for the year ended December 31, 2023 under Item 1A, “Risk Factors.” When showing constant dollar figures on GAAP and non-GAAP financial measures, the foreign exchange impact is calculated by using current foreign exchange rates and applying them to the prior period results. We also monitor earnings (defined as net income from continuing operations) before interest, taxes, depreciation and amortization (EBITDA) and adjusted EBITDA (EBITDA before the impact of special items) as a supplement to our GAAP measures.

The non-GAAP financial measures include: Organic Performance (which excludes the impact of foreign exchange), Adjusted Earnings Per Share, Adjusted EBITDA, Adjusted EBITDA margins, Free Cash Flow and Adjusted Free Cash Flow. EPS $2.66 15.2% (2.5%) 12.7% Copyright © . 2025 16 Full-year 2024 organic revenue growth - by region ▲5% ▲1% ▲5% ▲15% Year-over-year revenue growth, excludes the impact of foreign exchange US & Canada Europe, Middle East & Africa Asia Latin America Copyright © . 2025 17 Color, Additives & Inks – full year 2024 performance 2,007 2,047 358 384 • Driven by new applications for drug delivery and building & construction as well as demand recovery in packaging and consumer • Adjusted EBITDA margin expansion driven by higher sales and net price benefit Adj. 17.8% Adj. 18.7% Copyright © . 2025 18 Specialty Engineered Materials – full year 2024 performance 1,138 1,197 224 249 • Growth headlined by strong demand for applications in defense end market and composites used in building & construction and engineered materials used in healthcare • Adjusted EBITDA margin expansion driven by higher sales and favorable mix Adj. 19.7% Adj. 20.8% Copyright © . 2025 19 Avient full year 2024 performance vs. full year 2023 3,143 3,240 502 526 Adj. EPS guidance 2025 financial guidance ▲ Further Fed rate cuts ▲ Chinese stimulus ▲ Economic recovery in Europe ▲ Continued strength in defense applications for both military and local law enforcement ▼ Policy uncertainty and changes ▼ Persistent inflation impacting consumer spending / slowdown of US economy ▼ Further deterioration of Europe economy ▼ FX volatility MACRO ASSUMPTIONS INFLUENCING RANGE 23Copyright © .

Unless otherwise stated, Adjusted EBITDA figures included in this presentation exclude the impact of special items as defined in our quarterly earnings releases. They’re willing to change their shopping habits to reduce environmental impact and they care about sustainability and recycling.” Chantal Nestor-Saury, Product Development Manager Avient Corporation 48 Brand Commitment: Percent Recycled Plastic Used Demand by Feedstock Type 39% 29% 37% 16% 6% 0% 10% 20% 30% 40% 50% Brand 1 Brand 2 Brand 3 Brand 4 Brand 5 Brand 6 Brand 7 Brand 8 Brand 9 Brand 10 Progress through 2022 Gap to reach 2025 targets Source: Ellen MacArthur Foundation 2022 12% CAGR Recycled Virgin Plastics3% CAGR RENEW – TAKEAWAY Demand for Recycled Content Drives Growth Projections Examples Covered Other Applications 45% 2022 Source: McKinsey HOW WE ENABLE SUSTAINABILITY Reduce Chris Pederson Senior Vice President, President of Specialty Engineered Materials Avient Corporation 49 REDUCE Avient Corporation 50 • Improving Fuel Economy - Incorporating innovative lighter-weight alternative materials as a cost-effective way to reduce fuel consumption • Reducing Energy Consumption and Dependence on Fossil Fuels - Negative public perceptions of fossil fuels are challenging companies to utilize alternative energy sources and also to reduce overall demand (consumption) • Reducing Carbon Footprint - Companies are seeking assistance from their suppliers to address the ever-increasing pressure to reduce their carbon footprint • Lessening Environmental Impact - Manufacturers are looking to reduce dependence on processes with high environmental impact such as the release of Volatile Organic Compounds (VOCs) during painting Solutions to reduce weight and energy consumption Avient Corporation 51 Lightweight Dashboards Hydrocerol™ Chemical Foaming Agents • Reduces part weight • No impact on performance • Highly cost effective 20% LESS MATERIAL 2022 Revenue: $46M Body + Trim SmartBatch™ Paint Replacement • Reduces emission of volatile organic compounds (VOCs) REDUCES VOCs Protective Film Versaflex™ Protective Film • Protects new cars from damage during shipping • High-tack eliminates solvent containing adhesives Avient Corporation 52 LED Lighting Components ThermaTech™ Thermally Conductive Formulations • Reduces weight vs. aluminum • Removes heat – extends LED life • Will not corrode LIGHTER THAN ALUMINUM 2022 Revenue: $3M REDUCES FUEL CONSUMPTION Running Boards, Side Steps Complēt™ Long Fiber Reinforced Structural Thermoplastics • High strength-to-weight • Replaces steel/aluminum • Excellent load carrying and fatigue resistance Avient Corporation 53 Battery Frame Maxxam™ Polyolefin Formulations • Critical stiffness and rigidity • Chemical and thermal performance • Replaces a heavier, aluminum frame LIGHTER THAN ALUMINUM Design for Lightweighting Avient Design Services • Comprehensive design for sustainability capabilities • Materials agnostic • 10% reduction in weight increases range by 14% SUSTAINABLE DESIGN 2022 Revenue: $4M EV Battery Cooling System Versaflex™ Thermoplastic Elastomers • Thermal management • Chemically resistant • More efficient and longer life battery EXTENDS BATTERY LIFE Avient Corporation 54 EV Connectors Edgetek™ PKE Non-halogen flame retardant Formulations • Provides reduced carbon footprint alternative to traditional materials (Nylon) LESS CO2 THAN NYLONCharging Cable Infrastructure ECCOH™ Wire and Cable Formulations • Low smoke, zero halogen • Flame resistance exceeds EVM1/EVL2 requirements ZERO HALOGEN 2022 Revenue: $2M Avient Corporation 55 Trailer Flooring Polystrand™ R Recycled PET Composite Tapes • Minimum 95% post-consumer recycle content • Improved carbon footprint without sacrificing performance 95% RECYCLED PET Aerodynamic Side Shield Polystrand™ Thermoplastic Composite Laminates • Can be post-formed • High impact and fatigue resistance LIGHTER Commercial Transportation, Aerospace 2022 Revenue: $8M Rail Car Doors Glasforms™ Composite Panels • Replaces steel • Will not corrode • Reduces weight LIGHT & DURABLE Air Cargo Nets Bio-based Dyneema® Fiber • Extends product life from 3 to 5 years 59% LESS WEIGHT Arm Rests & Seat Frames Complēt™ Long Fiber Composites • Replaces steel • High strength-to-weight ratio LIGHT & STRONG Commercial Transportation, Aerospace 2022 Revenue: $8M Air Cargo Containers Polystrand™ Composite Sandwich Panels • Lighter and stronger than aluminum 95% Avient Corporation 56 Avient Corporation 57 Aquaculture/ Fishing Nets Dyneema® Fishing Net Fibers • High bite resistance – lowers maintenance costs and fish loss • Lighter weight reduces fuel consumption – allows for larger net sizes LIGHTER THAN NYLON/ POLYESTER 70% LIGHTER THAN STEEL Lifting Slings Dyneema® Fiber • Facilitates heavy lift in harsh environments • Accredited by DNV GL, ABS, Bureau Veritas Mooring Lines Dyneema® Mooring Rope Fibers • Able to handle heavy loads common to modern shipping • Improves handling • Reduces dock worker injuries 2x SERVICE LIFE Marine Infrastructure 2022 Revenue: $41M Solar Power Station UV Solutions Smartbatch™ Combination Colorants • Protects solar power panels from UV weathering and outdoor exposure • Meets critical performance standards ENERGY SAVINGS (VS.

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