W AT E R S TO R AG E M A N U FAC T U R E R P O T A B L E W A T E R T A N K S • Diminish growth of microbials in water tanks to provide differentiating feature for landmark product launch • Prevent undesirable odor associated with bacteria and fungal growth on the product’s polymer surface • Meet FDA, NSF, and UL regulatory requirements • Formulated a multi-polymer solution that ensured microbial and fungal growth were diminished while preserving polymer performance • Utilized antimicrobials to mitigate the causal effect of undesirable tastes and odors • Enabled customer to meet requirements through Avient’s knowledge and expertise of regulatory protocols Cesa™ WithStand™ Antimicrobial Additives KEY REQUIREMENTS WHY AVIENT? https://www.avient.com/products/polymer-additives/performance-enhancement-additives/withstand-antimicrobial-additives

C A S T A N D B L O W N F I L M L E A D I N G PAC K AG I N G F I L M S U P P L I E R • Improve quality, limiting melt fracture and die built up • Increase productivity, reducing cleaning frequency • More sustainable manufacturing process • Regulatory compliance HIFORMER™ Liquid Polymer Processing Aid AV I E N T S O L U T I O N • Increased processing efficiency and overall productivity with low let down ratio • Delivered significant improvement in melt fracture and die build up • Sustainability benefits provided, including possibility for longer production runs, reduced energy consumption and less waste W H Y AV I E N T K E Y R E Q U I R E M E N T S P R O D U C T I V I T Y + S U S T A I N A B I L I T Y L E A R N M O R E

O RT H O P E D I C PA RT S M A N U FAC T U R E R O R T H O P E D I C S O L E I N S E R T • A super soft TPE ( AVIENT SOLUTION HAPTICS + BIOCOMPATIBILITY LEARN MORE © 2024 Avient Corporation, All Rights Reserved https://www.avient.com/products/thermoplastic-elastomers/versaflex-thermoplastic-elastomers

FIBER MANUFACTURER T E X T I L E S & F A B R I C S • Provide a Product Carbon Footprint (PCF) calculation to align with ISO 14067:2018 and to help in meeting sustainability goals • Procure feedstock from renewable resources • Maintain comparative performance to conventional carbon black • Achieve color stability under xenon arc and TUV testing • Offer solutions for rPET, PP, PE, PBT, and PA6 where a desire for environmentally responsible products exists • Offered sustainable platform approach supported by extensive fiber expertise • Helped meet sustainability targets while attaining all design and engineering goals • Supplied necessary PCF calculation certified by TÜV Rheinland and aligning with ISO 14067 requirements • Provided effective alternative to virgin carbon black • Achieved reductions in CO2e emissions vs. https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-rc-environmental-black-color-concentrate

MEDICAL DEVICE MA NUFAC TURER S T E T H O S C O P E S • Provide a silicone paste colorant dispersion for liquid silicone rubber (LSR) to use in stethoscope ear tips • Create a custom-colored vinyl plastisol formulation for stethoscope tubing • Harmonize color across materials to meet specific process and performance requirements • Deliver effective communication and cross-functional collaboration • Offered dependable silicone paste colorants that allowed for comfort and easy sterilization • Provided a colored vinyl plastisol to reduce tackiness and support product longevity • Collaborated internally to align all materials and provide color consistency across components • Supported fast color changes and met quality specifications through constant communication and technical expertise Silcopas Silicone Paste Colorants and CORE Vinyl Plastisols for Healthcare KEY REQUIREMENTS WHY AVIENT? https://www.avient.com/products/vinyl-formulations/vinyl-plastisols-organosols/core-vinyl-plastisols-healthcare https://www.avient.com/products/polymer-colorants/colorant-dispersions/colorants-liquid-silicone-rubber Slide 1: Medical device manufacturer

 Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to:  The final amount of charges resulting from the planned North American asset realignment and the Company’s ability to realize anticipated savings and operational benefits from the asset realignment;  Our ability to achieve the strategic and other objectives relating to the acquisition of Spartech Corporation, including any expected synergies;  Our ability to successfully integrate Spartech and achieve the expected results of the acquisition, including, without limitation, the acquisition being accretive;  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 financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability;  The speed and extent of an economic recovery, including the recovery of the housing market;  Our ability to achieve new business gains;  The effect on foreign operations of currency fluctuations, tariffs, and other political, economic and regulatory risks;  Changes in polymer consumption growth rates in the markets 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 achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions, employee productivity goals, and an inability to raise or sustain prices for products or services;  An inability to raise or sustain prices for products or services;  An inability to maintain appropriate relations with unions and employees;  The inability to achieve expected results from our acquisition activities;  Our ability to continue to pay cash dividends;  The amount and timing of repurchases of our common shares, if any; 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 Platform operating income mix percentage 2005Y* 2008Y* 2010Y* 2013Y 2014Y Global Color, Additives and Inks $ 4.3 $ 28.1 $ 37.7 $ 104.0 $ 124.9 Global Specialty Engineered Materials 0.4 17.6 49.7 57.2 72.4 Designed Structures and Solutions - - - 33.4 45.1 Specialty Platform $ 4.7 $ 45.7 $ 87.4 $ 194.6 $ 242.4 Performance Products and Solutions 75.7 31.3 54.0 56.0 63.1 Distribution 19.5 28.1 42.0 63.3 68.2 Joint ventures 91.9 28.6 18.9 - - Corporate and eliminations (51.5) (425.1) (27.7) (82.4) (218.6) Operating income (loss) GAAP $ 140.3 $ (291.4) $ 174.6 $ 231.5 $ 155.1 Less: Corporate operating expense 51.5 425.1 27.7 82.4 218.6 Operating income excluding Corporate $ 191.8 $ 133.7 $ 202.3 $ 313.9 $ 373.7 Specialty platform operating mix percentage 2% 34% 43% 62% 65% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment. Appendix 2014 Financial Highlights At a Glance�Global Color, Additives and Inks At a Glance�Global Specialty Engineered Materials At a Glance�Designed Structures and Solutions At a Glance�Performance Products and Solutions At a Glance�Distribution Plastics: Key to Future Sustainable Development Commitment to Operational Excellence A Rich Pipeline of Opportunity Application Examples Slide Number 28 Authentication Technology Range Rover Evoque Interior Slide Number 31 Metal Replacement Solutions Next Generation Solar Charger High-Barrier Packaging Containers Aerospace Applications Non-GAAP Reconciliation Sidoti & Company non-GAAP Rec

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to:  The final amount of charges resulting from the planned North American asset realignment and the Company’s ability to realize anticipated savings and operational benefits from the asset realignment;  Our ability to achieve the strategic and other objectives relating to the acquisition of Spartech Corporation, including any expected synergies;  Our ability to successfully integrate Spartech and achieve the expected results of the acquisition, including, without limitation, the acquisition being accretive;  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 financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability;  The speed and extent of an economic recovery, including the recovery of the housing market;  Our ability to achieve new business gains;  The effect on foreign operations of currency fluctuations, tariffs, and other political, economic and regulatory risks;  Changes in polymer consumption growth rates in the markets 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 achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions, employee productivity goals, and an inability to raise or sustain prices for products or services;  An inability to raise or sustain prices for products or services;  An inability to maintain appropriate relations with unions and employees;  The inability to achieve expected results from our acquisition activities;  Our ability to continue to pay cash dividends;  The amount and timing of repurchases of our common shares, if any; 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 Platform operating income mix percentage 2005Y* 2006* 2008Y* 2010Y* 2013Y Global Specialty Engineered Materials $ 0.4 $ 3.9 $ 17.6 $ 49.7 $ 57.2 Global Color, Additives and Inks 4.3 8.9 28.1 37.7 104.0 Designed Structures and Solutions - - - - 33.4 Specialty Platform $ 4.7 $ 12.8 $ 45.7 $ 87.4 $ 194.6 Performance Products and Solutions 75.7 64.2 31.3 54.0 56.0 Distribution 19.5 19.2 28.1 42.0 63.3 SunBelt Joint venture 91.9 102.9 28.6 18.9 - Corporate (51.5) 34.5 (425.1) (27.7) (82.4) Operating income (loss) GAAP $ 140.3 $ 233.6 $ (291.4) $ 174.6 $ 231.5 Less: Corporate operating expense 51.5 (34.5) 425.1 27.7 82.4 Operating income excluding Corporate $ 191.8 $ 199.1 $ 133.7 $ 202.3 $ 313.9 Specialty platform operating mix percentage 2% 6% 34% 43% 62% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment. Reconciliation to Condensed Consolidated Balance Sheets 2013 Short-term debt and current portion of long-term debt $ 12.7 Long-term debt 976.2 Less cash and cash equivalents (365.2) Net debt $ 623.7 Adjusted EBITDA 2013 Income before income taxes $ 151.0 Interest expense, net 63.5 Depreciation and amortization 108.8 Special items in EBITDA 31.7 Adjusted EBITDA $ 355.0 2 Platform sales and operating income (OI) 2006Y* 2013Y Global Specialty Engineered Materials sales $ 345.3 $ 615.5 Global Color, Additives and Inks sales 531.8 852.3 Designed Structures and Solutions sales - 597.4 Specialty Platform sales 877.1 2,065.2 Performance Products and Solutions sales 1,166.2 773.2 PolyOne Distribution sales 732.8 1,075.2 Corporate and eliminations (153.7) (142.4) Total sales $ 2,622.4 $ 3,771.2 Global Specialty Engineered Materials OI $ 3.9 $ 57.2 Global Color, Additives and Inks OI 8.9 104.0 Designed Structures & Solutions OI - 33.4 Specialty Platform OI 12.8 194.6 Performance Products and Solutions OI 64.2 56.0 PolyOne Distribution OI 19.2 63.3 Sunbelt Joint Venture OI 102.9 - Corporate and eliminations (4.6) (52.4) Special items in OI 39.1 (30.0) Operating income GAAP 233.6 231.5 Sunbelt equity income (107.0) - Special items in OI (39.1) 30.0 Adjusted operating income $ 87.5 $ 261.5 Global Specialty Engineered Materials - OI % of sales 1.1% 9.3% Global Color, Additives and Inks - OI % of sales 1.7% 12.2% Designed Structures & Solutions - OI % of sales - 5.6% Specialty platform OI - % of sales 1.5% 9.4% PP&S operating OI - % of sales 5.5% 7.2% Distribution OI - % of sales 2.6% 5.9% PolyOne OI adjusted - % of sales 3.3% 6.9% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment.

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Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application. You have the responsibility to conduct full-scale end-product performance testing to determine suitability in your application, and you assume all risk and liability arising from your use of the information and/or use or handling of any product. AVIENT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, either with respect to the information or products reflected by the information.

Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application. You have the responsibility to conduct full-scale end-product performance testing to determine suitability in your application, and you assume all risk and liability arising from your use of the information and/or use or handling of any product. AVIENT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, either with respect to the information or products reflected by the information.