The company noted that GAAP EPS includes $0.24 of special items (see Attachment 3) and $0.16 of intangible amortization expense (see Attachment 1). Eastern Time on May 3, 2023. 3 Webcast Details Avient will host a webcast on Wednesday, May 3, 2023 at 8:00 a.m. See Attachment 3 for a definition and summary of special items.

MEVOPUR Bio-based Solutions Application Bulletin_CN5.30-1 生物基聚合物解决方案 可持续发展关注的焦点 生物聚合物 应用公告 用于医疗器械和药品包装的MEVOPUR™ 越来越多的医疗器械和药品包装制造商面临着将 可持续性融入其产品设计的挑战。 主要特性 可用于聚乙烯、聚丙烯、ABS、聚碳酸酯和苯 乙烯 树脂载体的生物含量从70%到100%不等，具 体取决于聚合物⸺按照ASTM D6866标准计 算 由四家通过ISO 13485认证的工厂生产，稳定 的供应链覆盖全球，品质始终如一 变更控制记录的级别高于CAS编号级别，降低 变更风险 可以像加工化石基聚合物般在普通注塑机和挤 出设备上进行产品加工的嵌入式解决方案 可以以即用型预着色或添加剂配方的形式提供 法规支持 原材料根据以下标准检测： - ISO 10993-1 - 美国药典和（包括VI类） - 欧洲药典，各论3.1.3/3.1.5（聚烯烃包装材 料） - 美国药典（聚乙烯） - 杂质元素符合ICH Q3D要求 注册药品管理档案（III类）和/或器械主文件 食品接触声明符合美国FDA和EU规范 适用医疗保健使用限制—见下文。 在不限制本声明的一般性的情况下，不得将埃万特的产品用于旨在用于以下目的的任何医疗器械应用： (1) 接触人体组织或体液长达30天或更长时间； (2)“整形”（整容或重建）手术； (3) 生殖植入物或任何节育器械；或者 (4) 用于支持或维持人类生命的永久性（超过30天）植入式医疗器械中的任何关键组件。

PMMA Considering lens performance, Resilience™ LS Frost PVC offers properties and material performance similar to PMMA, often at a significantly lower cost. 1 ASTM D-1003 measured by Polymer Diagnostics, Inc. PDI) on extruded profiles 2 ASTM D-638 3 ASTM 256 4 ASTM D-648 66 psi, unannealed, 0.125" 5 Savings depends on profile size and production volume Acrylite is a registered trademark of Evonik Performance Materials Lens Performance Resilience™ LS Frost PVC Acrylite® Satinice Frost PMMA Light Transmission1 at 0.060" (1.5mm) 83% Low Diffusion 78% Medium Diffusion 75% High Diffusion 81% Low Diffusion Diffusion Half Power Angle (DLD) 26° Low Diffusion 41° Medium Diffusion 58° High Diffusion 26° Low Diffusion Tensile Strength2 Tensile Modulus2 Tensile Elongation (break)2 7,360 psi 400,000 psi 20% 7,330 psi 330,000 psi 43% Flammability (UL 94) V-0 @ 1.5mm 5VA @ 2.0mm HB @ 1.6mm Notched Izod Impact (73°F)3 2.3 ft-lb/in 0.6 ft-lb/in Heat Deflection Temperature4 157°F/69°C 182°F/83°C UV Stability Good Excellent Chemical Resistance Excellent Good Typical Lens Profile Cost 10–15% Savings5 Baseline 1.866.POLYONE www.polyone.com Copyright © 2018, PolyOne Corporation.

POLYMER FAMILY MATERIAL PRODUCT NAME PRODUCT TYPE DOSAGE Polyolefin PEAN698413 CESA Antimicro SE 99-58 Silver 2–7.5% Polyolefin PEAN698432 CESA Antimicro J8146 Zinc 1–4% Polypropylene PPA0698636 CESA Antimicro J8259 Zinc 1–4% Nylon ABA0820032 CESA Antimicro ABA0820032 Silver 2–7.5% Polyester NBAN698441 CESA Antimicro S58441 Silver 2–7.5% Polycarbonate NCAN820009 CESA Antimicro NCAN820009 Silver 2–7.5% TPU RUA0698433 CESA Antimicro J8843 Zinc 1–4% Styrenic SLA0820011 CESA Antimicro SLA0820011 Zinc 1–4%

X GT-22105-002-2 X GT-22105-002-3 X ET #23732-1 Blue

Global Policy on Antitrust Updated February 2021 Table of Contents Guide For Compliance 1 Policy Overview 1 An Overview of U.S. Avient’s legal department will help you protect yourself and the Company should questions later arise. 3. Do not otherwise obtain information (particularly price information) directly from competitors. 4.

VERSALLOY(TM) XL9045-1 P X ET-32318-01C-1 Natural X ET-32318-01C-3 Natural

Abrasion  Yarn on Yarn Abrasion Ultraviolet (UV) Flame  Chemical (Acid) Chemical (Alkali) Chemical (Organic Solvent) P O X P P P P LOCATIONS Headquarters, R&D, Manufacturing FIBER-LINE® LLC 3050 Campus Drive Hatfield, PA 19440 +1 215.997.9181 fiber@fiber-line.com Manufacturing Operations FIBER-LINE® LLC 280 Performance Drive SE Hickory, NC 28602 +1 828.326.8700 fiber@fiber-line.com EMEA & Asia Pacific Operations FIBER-LINE® INTERNATIONAL B.V. Uranusweg 3 8938 AJ Leeuwarden The Netherlands +31(0) 58 216 75 99 info@fiber-line.com ABOUT FIBER-LINE® NOTICE: The information and data contained herein do not constitute sales specifications.

FIBER-LINE® makes no warranty, express or implied, that the product PFA PFA BARE PERFORMANCE Operating Temperature Range -200°C - 260°C POLYPROPYLENE BARE PERFORMANCE Operating Temperature Range -45°C - 105°C Flex Properties X EXTRUSION FIBERS PROCESSES PRODUCTS POLYETHYLENE BARE PERFORMANCE Operating Temperature Range -65°C - 80°C Flex Properties O POLYURETHANE BARE PERFORMANCE Operating Temperature Range -55°C -125°C POLYETHYLENE POLYPROPYLENE POLYURETHANE This data is provided for informational purposes only, and does not constitute a specification. FIBER-LINE® makes no warranty, express or implied, that the product PVC PVC BARE PERFORMANCE Operating Temperature Range -55°C - 105°C EXTRUSION FIBERS PROCESSES PRODUCTS PVDF BARE PERFORMANCE Operating Temperature Range -40°C - 140°C PVDF LOCATIONS Headquarters, R&D, Manufacturing FIBER-LINE® LLC 3050 Campus Drive Hatfield, PA 19440 +1 215.997.9181 fiber@fiber-line.com Manufacturing Operations FIBER-LINE® LLC 280 Performance Drive SE Hickory, NC 28602 +1 828.326.8700 fiber@fiber-line.com EMEA & Asia Pacific Operations FIBER-LINE® INTERNATIONAL B.V. Uranusweg 3 8938 AJ Leeuwarden The Netherlands +31(0) 58 216 75 99 info@fiber-line.com ABOUT FIBER-LINE® NOTICE: The information and data contained herein do not constitute sales specifications.

Key Features • Excellent strength to weight ratio • High abrasion resistance • UV Stable • Chemically inert except for strong oxidizing acids • Resistant to fatigue & internal friction Disadvantages • Poor temperature resistance • Susceptible to creep • Flammable FIBER-LINE® PROCESS FOR UHMWPE • Coating • Twisting • Precision Winding FIBER-LINE® UHMWPE PRODUCTS • Strength Members • Industrial Fabric Yarn • Synthetic Wire Rope • Windshield Removal Cord Abrasion  Yarn on Yarn Abrasion Ultraviolet (UV) Flame (Acid) (Alkali) (Organic Solvent) P P P X P P P Property UOM Value Breaking Tenacity g/d 28.0 Specific Gravity Ratio  0.97 Elongation @ Break % 3.6 Tensile Modulus g/d 850 Moisture Regain* %   UHMWPE DATA UHMWPE BARE FIBER PERFORMANCE * Equilibrium moisture regain @ 55% RH ** Creep @ 40%-58% ultimate tensile strength *** Shrinkage in dry air @ 177 C for 30 minutes  ABOUT FIBER-LINE® LOCATIONS Headquarters, R&D, Manufacturing FIBER-LINE® LLC 3050 Campus Drive Hatfield, PA 19440 +1 215.997.9181 fiber@fiber-line.com Manufacturing Operations FIBER-LINE® LLC 280 Performance Drive SE Hickory, NC 28602 +1 828.326.8700 fiber@fiber-line.com EMEA & Asia Pacific Operations FIBER-LINE® INTERNATIONAL B.V. Uranusweg 3 8938 AJ Leeuwarden The Netherlands +31(0) 58 216 75 99 info@fiber-line.com NOTICE: The information and data contained herein do not constitute sales specifications.