This usually still results in unbalanced filling and is not a recommended design.2 “H” Pattern Runner This type of runner delivers a geometrically balanced type of fill, and is recommended for most multi-cavity tools. Figure 24 shows the various runner cross sections.2 Full- Round Runner Parting Line Trapezoidal Runner Modified Trapezoidal Runner Half- Round Runner Rectangular Runner FIGURE 21 - Herringbone runner FIGURE 22 - “H” pattern runner FIGURE 23 - Radial runner FIGURE 24 - Runner cross sections Design Guide 15 Runner Sizing Runners need to be large enough to allow for filling and packing phases. Only naturally balanced runner systems (“H” patterns) are recommended.

Global Compact & fulfilled Communication of Progress (COP) requirements • New Sustainability Strategy overview page including our 2022 AIP ESG metrics • New ESG Performance page with ESG ratings, awards, and certifications • Increased disclosures on carbon emissions, including disclosure of Climate Change Scenario Analysis • Added new Product Stewardship and Chemical Management policies • Enhanced data reporting for Workforce Demographics • Improved social disclosures on human rights, dependent care and special leave and strategic training management 2021 SUSTAINABILITY REPORT Launching integrated sustainability website in parallel with report Aligned with leading reporting frameworks 6 Released July 2022 ESG RATINGS PERFORMANCE ESG AWARDS AND CERTIFICATIONS ESG PERFORMANCE & AWARDS 84th 3 1 2 7 T RAN S FO R MAT IO NAL OVE RV IE W Avient Protective Materials Dyneema ® RECENT TRANSACTIONS Acquired Divested $1.45 B $0.95 B 9 Distribution UPDATED CAPITAL STRUCTURE & LIQUIDITY • Proceeds from completed sale of Distribution used to pay near-term maturing debt to strengthen balance sheet • Fixed/floating debt ratio of ~55/45 • Proven track record of deleveraging following major acquisitions through strong free cash flow generation • 2022 pro forma net debt/adjusted EBITDA expected to be 3.1x $725 $725 $575 $500 $600 $525 $650 $650 $600 Capital Structure Cas h $544 Undr awn Rev olve r $250 Liquidity $3.15B $2.40B 2030 Notes 2029 Term Loan 2026 Term Loan 2025 Notes 2023 Notes After Dyneema Acquisition After Distribution Divestiture $794M (1) (1) $250M reflects estimated undrawn revolver following the divestiture of Distribution 10 PREVIOUS TRANSACTIONS Performance Solutions Products & $0.8 B COLOR $1.4 B Acquired (2020)Divested (2019) 11 • Acquisition of Clariant Color business significantly expanded presence in healthcare, packaging and consumer end markets • Strength of portfolio – double-digit annual EBITDA growth since acquisition • $75 million of realized synergies anticipated in 2022 • Acquisition completed on July 1, 2020 for $1.45 billion. EBITDA Margins (1) • Focus on organic growth combined with transformative and bolt-on acquisitions • Divested commodity businesses tied to more cyclical end markets • Expanded presence in high growth areas of sustainable solutions, specialty healthcare applications, composites and more resilient end markets 5.4% 11.5% 16.1% 2006 2018 2022PF $142 $408 $585 2006 2018 2022PF 2006 figures exclude joint venture results 19 RETURNING CASH TO SHAREHOLDERS Growing Dividend 0.1 0.1 0.2 0.5 0.6 0.7 0.8 0.9 0.9 1.0 1.0 1.0 11 12 13 14 15 16 17 18 19 20 21 22 0.16 0.20 0.26 0.34 0.42 0.50 0.58 0.72 0.79 0.81 0.85 0.95 0.99 11 12 13 14 15 16 17 18 19 20 21 22 23 ~$1Bn REPURCHASED OVER LAST 11 YEARS ~$550MM PAID OVER LAST 11 YEARS Dividends Share Repurchases Cumulative Buybacks $B n $ p e r sh ar e $2.95 2022 PRO FORMA ADJUSTED EPS Earnings Growth Expanding Profitability $0.15 $1.09 $2.08 $2.67 $2.95 2009 2012 2015 2018 2022PF T H IR D Q UART ER 2022 RE S U LTS $110 $119 2021 2022 $0.61 $0.59 2021 2022 Q3 2022 PERFORMANCE (TOTAL COMPANY CONT.

ACTIVE INGREDIENTS RESISTANCE RATING Clorox® Disinfecting Wipes 5813-79 Quaternary ammonium +++++ +++++ +++++ ++ +++ ++++ Formula 409® Heavy Duty Degreaser N/A Lauramine oxide, ethanolamine +++++ +++++ +++++ + ++ +++ Lysol® All-Purpose Cleaner 777-66 Quaternary ammonium +++++ +++++ +++++ + + ++ $$$ $$$ $$$$ $ $$$ $ MATERIAL COMPARISON WITH COMMON CONSUMER DISINFECTANTS FR P C/ AB S FR P C/ PE T FR P C/ PB T Ed ge te k™ E T8 90 0 CR Ed ge te k™ E T8 90 0 H I C R Ed ge te k™ E T8 92 0 FR C RCRITERIA FOR RESISTANCE RATING + strength and elongation at yield retention between 90-110% + strength and elongation at yield retention between 75-125% + no statistically significant reduction in elongation at break (p < 0.05) + visual observation score of 4 or better (minor/no crazing, no cracks) + samples survived disinfectant exposure in strain jig Lysol® is a trademark of Reckitt Benckiser LLC Formula 409® is a trademark of The Clorox Company Clorox® is a trademark of The Clorox Company An independent, A2LA-accredited lab tested the following polymers with various disinfectants to help customers choose the material suitable for their specific application requirements.

Following are top reasons why many manufacturers and designers choose high-performance thermoplastics: • High-temperature resistance • Chemical resistance • Flame/smoke/toxicity (FST) performance • Chemically inert PLUS, ALL THE BENEFITS OF PLASTIC In addition to their elite-level properties, high-performance thermoplastics deliver the typical advantages of polymers over other material types such as metal, glass and ceramic, including: • Light weight • Design freedom/part consolidation • Easy colorability • Efficient, high-volume processing • Elimination of secondary operations • Enhanced product experience for the end user - quieter environment - improved tactile feel - better usability ADVANTAGES Going Above and Beyond • Amorphous structure • High marks for toughness, chemical resistance, hydrolytic stability, resistance to boiling water, and extreme thermal capabilities • Best for: aerospace interiors, hot water fittings, and medical and dental devices that are subjected to repeated steam sterilization • Also used in food equipment exposed to temperature extremes, such as coffeemakers or freezer-to-microwave cookware Polyaryletherketones Polysulfones Liquid crystal polymers Polyetherimides Polyphenylene sulfides There are five major families of high-performance thermoplastics PO LY AR YL ET H ER KE TO N ES PO LY SU LF O N ES• Semi-crystalline structure • High marks for thermal stability, chemical resistance and mechanical properties over a wide temperature range • Better-than-average levels of combustion resistance and electrical performance • Some PAEK materials, like polyetheretherketone (PEEK), are also extremely tough and have excellent impact strength • Best for: aerospace, automotive, industrial and medical components • May be used to create stock shapes such as rods, bars, and tubes All in the Family PO LY PH EN YL EN E SU LF ID ES • Semi-crystalline structure • Excellent temperature resistance with continuous service temperatures up to 230°C • High marks for modulus and resistance to creep, corrosion, and chemicals • Above-average electrical properties • Best for: complex parts with extremely tight tolerances; often used as an alternative to metals and thermosets in automotive underhood parts, appliances, electronics, and industrial applications Polyaryletherketones Polysulfones Liquid crystal polymers Polyetherimides Polyphenylene sulfides There are five major families of high-performance thermoplastics PO LY ET H ER IM ID ES LI Q U ID C RY ST AL P O LY M ER S • Semi-crystalline structure • High degree of anisotropy: strength, stiffness and thermal expansion will be greater in one direction vs. the other • High marks for temperature, chemical and electrical resistance • Exceptional mechanical strength and high flow rates; often used to fill extremely long parts with thin walls • Best for: electronic connectors, sensors, bullet-resistant vests, jet engine enclosures, brake and transmission friction parts, and gaskets • Amorphous structure • High marks for thermal, mechanical, and chemical properties • Often selected for demanding applications requiring ultra-high mechanical strength combined with high temperature, corrosion and wear resistance • Impact resistance may be lower than that of PSUs and PAEKs • Best for: aerospace interiors, automotive lighting, medical devices, and electrical and fiber optic connectors All in the Family Source: https://www.craftechind.com/standard-and-custom-parts-in-high-performance-plastics/ TEMPERATURE AND MATERIAL TYPE The two broad classifications of high-performance thermoplastics—amorphous and semi-crystalline— have different temperature characteristics.

Microsoft PowerPoint - AVNT Q3 2022 Earnings Presentation AVIENT CORPORATION T H I R D Q U A R T E R 2 0 2 2 R E S U L T S (NYSE: AVNT) N OV E M B E R 2 , 2 0 2 2 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. EBITDA Margins (1) • Focus on organic growth combined with transformative and bolt-on acquisitions • Divested commodity businesses tied to more cyclical end markets • Expanded presence in high growth areas of sustainable solutions, specialty healthcare applications, composites and more resilient end markets 5.4% 11.5% 16.1% 2006 2018 2022PF $142 $408 $585 2006 2018 2022PF 2006 figures exclude joint venture results 14 RETURNING CASH TO SHAREHOLDERS Growing Dividend 0.1 0.1 0.2 0.5 0.6 0.7 0.8 0.9 0.9 1.0 1.0 1.0 11 12 13 14 15 16 17 18 19 20 21 22 0.16 0.20 0.26 0.34 0.42 0.50 0.58 0.72 0.79 0.81 0.85 0.95 0.99 11 12 13 14 15 16 17 18 19 20 21 22 23 ~$1Bn REPURCHASED OVER LAST 11 YEARS ~$550MM PAID OVER LAST 11 YEARS Dividends Share Repurchases Cumulative Buybacks $B n $ p e r sh ar e $2.95 2022 PRO FORMA ADJUSTED EPS Earnings Growth Expanding Profitability $0.15 $1.09 $2.08 $2.67 $2.95 2009 2012 2015 2018 2022PF T H IR D Q UART ER 2022 RE S U LTS $110 $119 2021 2022 $0.61 $0.59 2021 2022 Q3 2022 PERFORMANCE (TOTAL COMPANY CONT.

REP A NR 2394/2011 NOTARIUSZ ANNA KOPCZYŃSKA KANCELARIA NOTARIALNA W ŁODZI - ZMIANA §§ 4, 7, 8, 9, 11 UST.2 PKT G; NOWY § 11 UST.2 PKT H; ZMIANA NUMERACJI PKT-ÓW: H,I,J,K,L W § 11 UST.2 NA PKT:I,J,K,L,M; ZMIANA § 11 UST.2 I 5, ZMIANA NR §11A NA § 12 I ODPOWIEDNIA ZMINA NUMERACJI KOLEJNYCH PARAGRAFÓW; ZMIANA §§: 12, 13 UST.1,2,4,5; USUNIĘCIE § 13 UST.6; ZMIANA § 14 UST.2 I § 15; USUNIĘCIE § 16 UST.2, § 18 UST.1 UMOWY SPÓŁKI 4 11.06.2012R.

Abernathy (2) (2) (2) Richard H. Preete, William H. Fearon William H.

James DOC ID ----> 202018203934 S T A T E OF O H I O C E R T I F I C A T E Ohio Secretary of State, Frank LaRose 4463782 It is hereby certified that the Secretary of State of Ohio has custody of the business records for and, that said business records show the filing and recording of: AVIENT CORPORATION United States of America State of Ohio Office of the Secretary of State Witness my hand and the seal of the Secretary of State at Columbus, Ohio this 23rd day of April, A.D. 2020.

Ezcabarte C/H N°3

This usually still results in unbalanced filling and is not a recommended design.2 “H” Pattern Runner This type of runner delivers a geometrically balanced type of fill, and is recommended for most multi-cavity tools. Figure 24 shows the various runner cross sections.2 Full- Round Runner Parting Line Trapezoidal Runner Modified Trapezoidal Runner Half- Round Runner Rectangular Runner FIGURE 21 - Herringbone runner FIGURE 22 - “H” pattern runner FIGURE 23 - Radial runner FIGURE 24 - Runner cross sections Design Guide 15 Runner Sizing Runners need to be large enough to allow for filling and packing phases. Only naturally balanced runner systems (“H” patterns) are recommended.