PR 254 Opaque RED LAKE C YS C.I. SPECTROPHOTOMETER CONFIGURATION FOR COA Type: Datacolor Illuminate: D65 Daylight Observer: 10 degree, large area view, specular included EXPLANATION OF SPECTROPHOTOMETRIC VALUES DL* Lightness/Darkness Difference (Delta L*) The shade of gray (black/white) + = Lighter - = Darker Da* Red/Green Color Difference (Delta a*) + = Hue is redder (or less green than) - = Hue is greener (or less red than) Db* Yellow/Blue Color Difference (Delta b*) + = Hue is yellower (or less blue than) - = Hue is bluer (or less yellow than) DC* Difference Attributed to Chromaticity (Delta C*) + = More saturated than (more color intensity) - = Less saturated than (less color intensity) DH* Difference Due to Hue Only (Delta H*) DE* Total Color Difference (Delta E*) DE is a mathematical calculation utilizing the DL*, Da* and Db*, and therefore, used alone this number can be misleading as to the true color of a material.

Autoinjector Pen - Avient Application Study.mm (1) AUTO-INJECTOR APPLICATION STUDY M A T E R I A L T E C H N O L O G I E S + S E R V I C E S F O R N E X T G E N E R A T I O N D E S I G N S Avient Corporation 1 Avient Corporation 2 Innovating Design Medical innovations and plastics have gone hand-in-hand to make healthcare safer, cleaner, and more accessible for all.

在针对各种洗衣机和 洗涤模式的试验中，这些产品展现出了优异的 剥离强度，在60°C水温下也不会出现变色、褪 色或色彩迁移现象。 ™ 产品公告 市场和应用 Versaflex TF TPE热熔胶解决方案专为以下应用 而设计: 主要特性 柔软舒适、回弹力强 与涤纶和尼龙织物紧密无缝粘合 通过OEKO-TEX 100-2测试 在高达60°C水温下具有出色的耐洗性 无毒配方，VOC含量低且不含增塑剂 是TPU胶膜和传统胶水的理想替代品 内衣弹性带 运动和健身服饰中的接缝带 1.844.4AVIENT www.avient.com 版权所有©2024 埃万特公司。

Microsoft PowerPoint - AVNT Nov 2022 Earnings Presentation AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) D E C E M B E R 2 0 2 2 AVIENT: WHO WE ARE 40 23 9 36 • U.S. and Canada • Latin America • Europe, Middle East & Africa • Asia 25,000+ CUSTOMERS Headquartered in Avon Lake, OH (Cleveland) 9,300+ employees 100+ manufacturing plants Key Financial Data 2022PF Sales $3.6 billion 2022PF EBITDA $585 million 2022PF EPS $2.95 100% ARE CUSTOMIZED SOLUTIONS TO UNIQUE SPECIFICATIONS of sales 2 Guidance as of November 2, 2022 Webcast WHO WE ARE – VISION, STRATEGY, CULTURE 3 Avient Corporation (NYSE: AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Sales EBITDA Specialty Engineered Materials Color Additives and Inks $585M$3,635M 29 C O L O R , A D D I T I V E S & I N K S 2022 REVENUE | $2 .3 B ILL ION US & Canada Latin America END MARKET REGION 30 33% Building & 1% Energy Figures represent 2022 full year estimates S P E C I A LT Y E N G I N E E R E D M AT E R I A L S 2022 PRO FORMA REVENUE | $1 .3 B ILL ION END MARKET US & Canada 50% REGION 31 Figures represent 2022 full year estimates 19% 8%Industrial 16% Building & 31% 28% Building & 3% 2% Defense (20% of sales) 2022 PROFORMA AVIENT REGIONAL SALES BY END MARKET 29% 17% Building & (35% of sales) 14% Building & 12% US & Canada (40% of sales) 49% Building & LATAM (5% of sales) 3%Telecommunications Figures represent 2022 full year estimates32

AVIENT CORPORATION P R O F O R M A F I N A N C I A L S F O R D Y N E E M A A C Q U I S I T I O N A N D D I S T R I B U T I O N A S D I S C O N T I N U E D O P E R A T I O N S (NYSE: AVNT) S E P T E M B E R 2 7 , 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.

IR Deck - AVNT-2024.06.30 (Earnings) AVIENT CORPORATION S E C O N D Q U A R T E R 2 0 2 4 R E S U L T S A N D 2 0 2 4 F I N A N C I A L G U I D A N C E (NYSE: AVNT) AU G U S T 6 , 2 0 2 4 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.

Microsoft PowerPoint - AVNT Nov 2022 Earnings Presentation AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) D E C E M B E R 2 0 2 2 AVIENT: WHO WE ARE 40 23 9 36 • U.S. and Canada • Latin America • Europe, Middle East & Africa • Asia 25,000+ CUSTOMERS Headquartered in Avon Lake, OH (Cleveland) 9,300+ employees 100+ manufacturing plants Key Financial Data $3.6 billion2022PF Sales $585 million2022PF EBITDA $2.952022PF EPS 100% ARE CUSTOMIZED SOLUTIONS TO UNIQUE SPECIFICATIONS of sales 2 Guidance as of November 2, 2022 Webcast WHO WE ARE – VISION, STRATEGY, CULTURE 3 Avient Corporation (NYSE: AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Sales EBITDA Specialty Engineered Materials Color Additives and Inks $585M$3,635M 29 C O L O R , A D D I T I V E S & I N K S 2022 REVENUE | $2 .3 B ILL ION US & Canada Latin America END MARKET REGION 30 33% Building & 1% Energy Figures represent 2022 full year estimates S P E C I A LT Y E N G I N E E R E D M AT E R I A L S 2022 PRO FORMA REVENUE | $1 .3 B ILL ION END MARKET US & Canada 50% REGION 31 Figures represent 2022 full year estimates 19% 8%Industrial 16% Building & 31% 28% Building & 3% 2% Defense (20% of sales) 2022 PROFORMA AVIENT REGIONAL SALES BY END MARKET 29% 17% Building & (35% of sales) 14% Building & 12% US & Canada (40% of sales) 49% Building & LATAM (5% of sales) 3%Telecommunications Figures represent 2022 full year estimates32

Sweden Filial Address: Drottninggatan 56 411 07 GÖTEBORG County and municipality: Västra Götaland, Göteborg Note: MANAGING DIRECTOR 630516 Palm, Christoph, Gruss Strooss 35, L-9991 WEISWAMPACH, LUXEMBURG AUDITORS 556053-5873 Ernst & Young Aktiebolag, Box 7850, 103 99 STOCKHOLM Represented by: 850807-5135 PRINCIPALLY RESPONSIBLE AUDITOR 850807-5135 Edman, Mikael Thomas Gunnar, c/o Ernst & Young AB, 401 82 GÖTEBORG SIGNATORY POWER Signatory power alone by Palm, Christoph FINANCIAL YEAR Registered financial year: 0101 - 1231 DATE OF REGISTRATION OF CURRENT AND PREVIOUS BUSINESS NAMES 2021-11-29 Avient S.à r.l., Sweden Filial 2018-08-28 PolyOne S.à.r.l., Sweden Filial INFORMATION ABOUT THE FOREIGN COMPANY B226205 Avient S.á.r.l. 19, Route de Bastogne L-9638 Pommerloch LUXEMBURG Registered office of the foreign company: Pommerloch Name of the register in which the foreign company is registered: 3 (3) RCS, Registre de Commerce, Luxembourg Business Register LUXEMBURG Foreign company's financial year: 0101 - 1231 The above information is an extract from the Trade and Industry Register Bolagsverket, the Swedish Companies Registration Office.

PROFILE/SHEET EXTRUDER R A I L S A N D K I C K P L A T E S • Convert existing PVC profile and sheet rails and kick plates to polyolefin resin to meet Class A fire safety (ASTM E84) • Provide a system that meets healthy building certifications and approvals • Utilize a more sustainable flame retardant technology, removing brominated or halogenated flame retardants from the environment • Achieve non-compromising performance in aesthetics, impact, dimensional stability, CLTE, and E84 testing • Provided broad flame retardant platform, backed by extensive application and industry expertise, to meet global flammability standards • Has largest UL94 recognized Prospector membership with HB, V-0, V-1, V-2 and 5VA/5VB ratings, and broad glow wire performance products • Included in-house UL certified labs and manufacturing locations to perform UL94 material sampling and testing • Supported application development to meet fire safety standards, address current or emerging healthy building codes, smart home requirements, and LEED credits • Offered custom formulations in small lot quantities Cesa™ Flam Non-Halogen Flame Retardants KEY REQUIREMENTS WHY AVIENT?

TEL:+31(0)102922689. www.dnvgl.com/assurance Page 2 of 2 Appendix to Certificate PolyOne-Shanghai, China Locations included in the certification are as follows: Site Name Site Address Site Scope PolyOne Polymer (Tianjin) Company Limited No.28#C, Jin Bin Hi-Tech Industrial Park, 156 Nan Hai Road, Tianjin Economic-Technological, Tianjin, China, 300457 Manufacture of Masterbatch PolyOne-Shanghai, China No. 88, Guo Shou Jing Road, Z.