Spiral flow test performed using 0.0625" x 0.375" channel at 400°F

Available in both natural and standard medical pre-colored products, the Trilliant HC family of materials are formulated without BPA ingredients. MRI, X-ray and CT Scanner Components

POPULAR BELT & HOSE REINFORCEMENT PRODUCTS Product ID FIBER-LINE® Coating Base Fiber Nominal Break Strength Nominal Yield Geometry Nominal Diameter Notes K1000T FIBER-LINE® Bondcoat™ Kevlar® 43 LBs (19 KGs) 12987 FT/LB 8725 M/KG Round/Flat .374 mm Twisted Kevlar with heat-activated adhesive coating K2160T FIBER-LINE® Bondcoat™ Kevlar® 100 LBs (45 KGs) 5847 FT/LB 3928 M/KG Round/Flat .558 mm Twisted Kevlar with heat-activated adhesive coating K1500 1x2x3 FIBER-LINE® Bondcoat™ Kevlar® 400 LBs (180 KGs) 1366 FT/LB 917 M/KG Round 1.22 mm Twisted Kevlar cord with heat-activated adhesive coating V1500 2x3 FIBER-LINE® Bondcoat™ Vectran 550 LBS (250 KGs) 1373 FT/LB 921 M/KG Round 1.305 mm Twisted Vectran cord with heat-activated adhesive coating MOVING HIGH PERFORMANCE FIBERS FORWARD 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.

Product ID FIBER-LINE® Coating Base Fiber Nominal Yield Description K9000 FIBER-LINE® Packcoat™ Kevlar® 660 FT/LB (400 M/KG) PFOA Free PTFE & Silicone oil dispersion NX8400 FIBER-LINE® Packcoat™ Nomex® 787 FT/LB (527 M/KG) PFOA Free PTFE & Silicone oil dispersion C24K14000 FIBER-LINE® Packcoat™ Carbon 383 FT/LB (257 M/KG) PFOA Free PTFE & graphite based lubricant dispersion C6K3600 FIBER-LINE® Packcoat™ Carbon 1675 FT/LB (1125 M/KG) PFOA Free PTFE, silicone oil, & graphite based lubricant dispersion PTFE6959 FIBER-LINE® Packcoat™ PTFE 1277 FT/LB (867 M/KG) PFOA Free PTFE & Silicone oil dispersion POPULAR PACKING YARN PRODUCTS MOVING HIGH PERFORMANCE FIBERS FORWARD 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.

Product ID FIBER-LINE® Coating Base Fiber Break Strength Yield Geometry Nominal Diameter Notes K1000 1x3 (HT) FIBER-LINE® Wearcoat™ Kevlar 125 LBs (55 KGs) 3930 FT/LB (2639 M/KG) Round/Flat .762 mm Highly twisted cord lubricated for easy under armor ripping K400 1x3 FIBER-LINE® Wearcoat™ Kevlar 65 LBs (29 KGs) 10989 FT/LB (7384 M/KG) Round/Flat .435 mm Lubricated for fast & easy ripping K1500 1x3 FIBER-LINE® Wearcoat™ Kevlar 200 LBs (91 KGs) 2500 FT/LB (1679 M/KG) Round/Flat .905 mm Lubricated for fast & easy ripping P3000 (HT) FIBER-LINE® Repelcoat™ PET Polyester 60 LBs (27 KGs) 3935 FT/LB (2645 M/KG) Round .695 mm Water repellency coating V1420T FIBER-LINE® Blockcoat™ VectranTM 90 LBs (40 KGs) 9010 FT/LB (6050 M/KG) Round/Flat .456 mm Vectran utilized to eliminate outgassing.

Product ID FIBER-LINE® Coating Base Fiber Nominal Break Strength Nominal Yield Description G675/Colors FIBER-LINE® Colorcoat™ E-Glass 60 LBs (27 KGs) 1897 FT/LB (1274 M/KG) Color formula designed to be compatible with customer specific resin matrix K1420 FIBER-LINE® Flamecoat™ Kevlar® 65 LBs (29 KGs) 6872 FT/LB (4616 M/KG) Flame retardant coating suppresses flame and smoke K1500 FIBER-LINE® Protexcoat™ FIBER-LINE® Colorcoat™ Kevlar® 69 LBs (31 KGs) 8770 FT/LB (5892 M/KG) Kevlar® coated with UV inhibitors and carbon black pigment for UV protection K14200 FIBER-LINE® Repelcoat™ Kevlar® 650 LBs (294 KGs) 877 FT/LB (588 M/KG) Water repellant coating used in ballistic fabric applications V3000T N/A Vectran® 195 LBs (88 KGs) 4390 FT/LB (2950 M/KG) Twisted to improve processing POPULAR INDUSTRIAL FABRIC YARN PRODUCTS MOVING HIGH PERFORMANCE FIBERS FORWARD 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.

Polymers are a class of organic materials that are generally produced by converting natural gas or crude oil derivatives into monomers, such as ethylene, propylene, and styrene. We also provide custom-formulated liquid systems that meet a variety of customer needs and chemistries, including polyester, vinyl, natural rubber and latex, polyurethane and silicone. Beggs, Senior Vice President and Chief Financial Officer 97.1+** Avient Corporation Compensation Clawback Policy Effective October 2, 2023 101 .INS** Inline XBRL Instance Document 101 .SCH** Inline XBRL Taxonomy Extension Schema Document 101 .CAL** Inline XBRL Taxonomy Extension Calculation Linkbase Document 101 .LAB** Inline XBRL Taxonomy Extension Label Linkbase Document 101 .PRE** Inline XBRL Taxonomy Extension Presentation Linkbase Document 101 .DEF** Inline XBRL Taxonomy Definition Linkbase Document 104 Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101) + Indicates management contract or compensatory plan, contract or arrangement in which one or more directors or executive officers of the Registrant may be participants † Certain exhibits and schedules have been omitted pursuant to Item 601(a)(5) of Regulation S-K and will be provided to the Securities and Exchange Commission upon request. ** Filed herewith.

Examples include: • Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy • Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation and reduce carbon footprint • Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility Avient employs approximately 8,800 associates and is certified ACC Responsible Care® and a founding member of the Alliance to End Plastic Waste. WHAT WE DO: MATERIAL SCIENCE 5 CUSTOM FORMULATION SUSTAINABILITY FOR A BETTER TOMORROW Revenue From Sustainable Solutions* 2016-2021 $310 205 140 80 75 45 40 20 $915M2021 Sales ($ in millions) *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business Future Growth Revenue Assumptions From Sustainable Solutions: 8 - 12% 6 S E CO N D Q UART E R 2022 RE S U LT S $122 $134 2021 2022 $0.87 $0.98 2021 2022 Q2 2022 PERFORMANCE (TOTAL COMPANY) 8 Sales Adjusted Operating Income $1,235 $1,302 2021 2022 + 5% Adjusted EPS + 10% + 13% (in millions) (in millions) (+ 10% excluding FX) (+ 16% excluding FX) (+ 20% excluding FX) Q2 2022 SEGMENT PERFORMANCE 9 CAI $624 $649 Sales ($ in millions) SEM Distribution $86 $94 Operating Income + 4% + 9% $404 $443 Sales $24 $27 Operating Income + 10% + 13% (1) $241 $244 Sales $37 $37 Operating Income + 1% Flat (+ 10% excluding FX) (+ 16% excluding FX) (+ 6% excluding FX) (+ 3% excluding FX) Q2 2021 $1,235 $122 Sustainable Solutions 17 7% 7 Healthcare 23 14% 5 Composites (ex Outdoor High Performance) 10 20% 4 Growth in Asia / LATAM 5 3% 1 Other 69 11% 5 Sub-total $1,359 10% $144 Outdoor High Performance Impact (9) (5) Wage Inflation and Overtime (7) Other Supply Chain Costs (2) Clariant Color Integration Synergies 7 Incentives, Other Employee Costs 4 FX (48) (7) Q2 2022 $1,302 5% $134 Q2 2022 SALES AND OPERATING INCOME (TOTAL COMPANY) 10 Sales Growth Rate Adjusted Operating Income$ millions Adjusted EBITDA Q2 EBITDA BRIDGE 11 Price increases more than offsets raw material and supply chain impacts Q2 2021 $ 159 Demand (29) $ millions CAI: Price / Mix 87 Inflation (58) SEM: Price / Mix 36 Inflation (24) Distribution: Price / Mix 45 Inflation (41) Net Price Benefit 45 Wage Inflation and Overtime (7) Other Supply Chain Costs (2) Clariant Color Integration Synergies 7 Incentives, Other Employee Costs 4 FX (7) Q2 2022 $ 170   China Lockdowns / Russia Impact $ (14) Outdoor High Performance (5) Transportation (5)  12 Q2 '21 Adjusted EPS 0.87$ Color, Additives and Inks 0.11 Specialty Engineered Materials 0.01 Distribution 0.03 Corporate Costs 0.01 F/X (0.05) Segment OI 0.11$ Interest Expense 0.03 Tax Rate (0.03) Q2 '22 Adjusted EPS 0.98$ Q2 EPS BRIDGE Key Updates • Provided progress on 2030 Sustainability Goals • Emphasized commitment to U.N. Senior management believes the measures described above are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude.

WIRE HARNESS YARN FIBERS PROCESS PRODUCTS Product ID FIBER-LINE® Coating Base Fiber Break Strength Yield Geometry Nominal Diameter Description NX1200T FIBER-LINE® WearcoatTM FIBER-LINE® ColorcoatTM Nomex 13 LBs (5.9 KGs) 9930 FT/LB (6672 M/KG) Round/Flat .438mm High-temperature resistant coating with colorant for identification K400T FIBER-LINE® WearcoatTM Kevlar® 20 LBs (9.1 KGs) 30303 FT/LB (20362 M/KG) Round/Flat .245mm High-temperature resistant coating NX1200 1x3 FIBER-LINE® ColorcoatTM Nomex 39.9 LBs (18.1 KGs) 3225 FT/LB (2167 M/KG) Round .815mm Color coated for identification G150 1x3 FIBER-LINE® WearcoatTM Glass 16.7 LBs (7.6 KGs) 12987 FT/LB (8726 M/KG) Round .372mm High-temperature resistant coating NX200T N/A Nomex 2.5 LBs (1.1 KGs) 68166 FT/LB (45804 M/KG) Round/Flat .168mm Fiber twisted to improve handling MOVING HIGH PERFORMANCE FIBERS FORWARD This data is provided for informational purposes only, and does not constitute a specification.