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1https://www.avient.com/sites/default/files/2020-09/stat-tech-tri-fold-processing-guide.pdf 2https://www.avient.com/sites/default/files/2020-12/therma-tech-processing-guide.pdf https://www.avient.com/products/engineered-polymer-formulations/high-temperature-polymer-formulations/compl-t-long-fiber-reinforced-structural-thermoplastics 1Gravi-Tech Processing Guide https://www.avient.com/sites/default/files/2020-10/2020-gravi-tech-processing-guide.pdf

For more information, visit www.avient.com. Investor Relations Contact: Giuseppe (Joe) Di Salvo, Vice President, Treasurer and Investor Relations, Avient Corporation, +1 440-930-1921, giuseppe.disalvo@avient.com, or Media Contact: Kyle G. Investor Contacts

Tel: (603) 5101 2888 Fax: (603) 5191 8718 Tel: (604) 588 0668 Fax: (604) 588 0590 www.avient.com Date : 17 May 2021 Dear Valued Customer, RE : Electronics Payment Info COMPANY : Bank Account Name: Avient Colorants Malaysia Sdn Bhd Formerly known as CLARIANT MASTERBATCHES (M) SB Business Registration No.: 199701025292 (440790X ) Address : Lot 1232, MK 15, Kawasan Industri Kecil & Sederhana, Simpang Ampat, 14120 S.P.S. Telephone No.: 604-588 0668 (CSD) & 603-5101 2820 (Finance) Fax No. : 604-588 0590 (CSD) & 603-5101 2882 (Finance) E-mail address* : ar_my@clariant.com;leelee.tang@avient.com; jennifer.tung@avient.com; Contact Person*: CSD - Ms Tang Lee Lee & Ms Jennifer Tung BANK : Bank Name : Citibank Berhad Bank Address : Menara Citibank, 165 Jalan Ampang, 50450 Kuala Lumpur Bank Account Number : MYR - 0114599018 USD - 0114599069 Swift Code : CITIMYKL *Please e-mail us your payment remittance so that we can update our records.

Specific grades are available to meet food contact requirements and also as nucleating additives for physical foaming agents. EXCELITE VS POWDER • Enables a greater level of density control, through consistent distribution in the polymer • Simplifies and optimizes resin compounding capabilities (PVC dry blends) • Enables greater control over foaming and expands processing window when re-introducing regrind • Clean and highly accurate dosing process, with fewer of the health and safety concerns that can become apparent with powder CFAs EXCELITE VS PELLET • Being significantly more concentrated, Excelite additive enables lower total cost to foam • Can achieve lower density, less carrier influence • Finer and tighter cell structure through better additive distribution • Improved linear consistency of cell structure as ColorMatrix pumps continually meter output, giving greater stability over material dosing • Improved plant working capital as lower let down ratios means less material is consumed and reduces inventory holdings TECHNICAL SUPPORT • Avient has a market leading service team which understands foaming processes, we assist customers to deliver performance and production efficiencies with Excelite™ technology • Please contact your local Avient representative for additional information on our line of foaming additives www.avient.com Copyright © 2020, Avient Corporation.

Complēt LGF50-PA6 Complēt REC LGF50-PA6 Complēt REC LGF50-PA6 Post-Consumer Recycled Resin 0% 50% 100% Long Glass Fiber 50% 50% 50% Tensile Strength 35,000 psi 241 MPa 34,000 psi 234 MPa 31,500 psi 217 MPa Tensile Modulus 2,300 ksi 15,862 MPa 2,250 ksi 15,517 MPa 2,200 ksi 15,172 MPa Flexural Strength 52,000 psi 359 MPa 51,500 psi 355 MPa 51,500 psi 355 MPa Flexural Modulus 2,200 ksi 15,172 MPa 2,150 ksi 14,828 MPa 2,100 ksi 14,483 MPa Izod Notched Impact 5.5 ft-lb/in 294 J/m 4.5 ft-lb/in 240 J/m 4.0 ft-lb/in 214 J/m Izod Un-Notched Impact 25.0 ft-lb/in 1,335 J/m 23.0 ft-lb/in 1,228 J/m 20.5 ft-lb/in 1,095 J/m Complēt LGF50-PA66 Complēt REC LGF50-PA66 Complēt REC LGF50-PA66 Post-Industrial Recycled Resin 0% 50% 100% Long Glass Fiber 50% 50% 50% Tensile Strength 36,000 psi 248 MPa 34,500 psi 238 MPa 34,000 psi 234 MPa Tensile Modulus 2,500 ksi 17,241 MPa 2,400 ksi 16,552 MPa 2,300 ksi 15,862 MPa Flexural Strength 54,000 psi 372 MPa 52,000 psi 359 MPa 51,000 psi 352 MPa Flexural Modulus 2,500 ksi 17,240 MPa 2,400 ksi 16,552 MPa 2,300 ksi 15,862 MPa Izod Notched Impact 5.5 ft-lb/in 294 J/m 4.0 ft-lb/in 214 J/m 3.5 ft-lb/in 187 J/m Izod Un-Notched Impact 22.5 ft-lb/in 1,202 J/m 19.5 ft-lb/in 1,041 J/m 19.0 ft-lb/in 1,015 J/m COMPLĒT REC PIR TPU COMPARISON Complēt REC PIR TPU materials are available in black or natural. Complēt LGF40-TPU Complēt REC LGF40-TPU Complēt REC LGF40-TPU Complēt REC LGF40-TPU Post-Industrial Recycled Resin 0% 25% 50% 75% Long Glass Fiber 40% 40% 40% 40% Tensile Strength 29,500 psi 203 MPa 28,000 psi 193 MPa 25,000 psi 172 MPa 21,500 psi 148 MPa Tensile Modulus 1,700 ksi 11,724 MPa 1,650 ksi 11,379 MPa 1,600 ksi 11,034 MPa 1,550 ksi 10,690 MPa Flexural Strength 45,500 psi 314 MPa 43,000 psi 297 MPa 37,000 psi 255 MPa 32,500 psi 224 MPa Flexural Modulus 1,700 ksi 11,724 MPa 1,650 ksi 11,379 MPa 1,600 ksi 11,034 MPa 1,550 ksi 10,690 MPa Izod Notched Impact 8.0 ft-lb/in 427 J/m 7.5 ft-lb/in 401 J/m 6.5 ft-lb/in 347 J/m 5.5 ft-lb/in 294 J/m Izod Un-Notched Impact 27.0 ft-lb/in 1,442 J/m 26.0 ft-lb/in 1,388 J/m 22.5 ft-lb/in 1,202 J/m 17.5 ft-lb/in 935 J/m 1.844.4AVIENT www.avient.com Copyright © 2022, Avient Corporation.

Gasoline - 30% glass-filled (GF) grade, dry as molded (DAM), room temperature Testing methodology is an adaptation from ASTM D543 • Reapply freshly soaked gauze pad every 24 hours to prevent from drying out • Repeat for a total of 72 hours • Tensile properties recorded *Chemical resistance data for DEET, motor oil, glass cleaner, and sunscreen available upon request KEY CHARACTERISTICS Figure 1 Figure 2 3.34 3.84 3.63 1.96 2.21 0.99 3.43 3.86 3.93 1.76 3.49 2.01 3.26 3.66 3.74 1.45 1.06 0.989 2.98 3.99 3.41 1.41 1.07 0.88 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 30% LGF PKE 30% LGF PA6 30% LGF PA66 30% SGF PKE 30% SGF PA6 30% SGF PA66 Ft -lb /in Notched Izod Impact ASTM D256 23C DAM 23C Conditioned -40C DAM -40C Conditioned 1.47 1.37 1.37 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 Glass-Filled PKE Glass-Filled PA6 Glass-Filled PA66 g/ cm 3 Density of Polyketone vs Nylon ASTM D792 LESS MOISTURE ABSORPTION THAN NYLON 30% Short Glass Fiber (SGF) Comparison Moisture uptake, environmental chamber 62% RH, 70°C SIMILAR DENSITY TO NYLON ASTM D792 COMPARABLE AND CONSISTENT IMPACT PERFORMANCE* Notched Izod Impact (ASTM D256) of LGF and SGF for DAM and Conditioned Materials *3,000 hr weathering data available upon request KEY CHARACTERISTICS 1.844.4AVIENT www.avient.com Copyright © 2024, Avient Corporation. Edgetek™ PKE Glass-Filled Portfolio Polyketone formulations with 20, 30, or 40% short glass fiber reinforcement available in natural or black Complēt™ PKE Portfolio Long fiber reinforced polyketone formulations with 30, 40, or 50% fiber loading and available in natural or black, and available in non-PFAS* formulations to achieve a UL 94 V-0 flame rating at 1.5 mm ET8900-0001 20GF NAT LGF30-PKE 1088 NAT ET8900-0002 30GF NAT LGF30-PKE 2020 BLK ET8900-0003 40GF NAT LGF40-PKE 1088 NAT ET8900-0004 20GF BLK LGF40-PKE 2020 BLK ET8900-0005 30GF BLK LGF50-PKE 1088 NAT ET8900-0006 40GF BLK LGF50-PKE 2020 BLK FEATURED PRODUCTS * Non-PFAS flame-retardant (FR) grades are manufactured without intentionally added PFAS-based raw materials.

Microsoft PowerPoint - AVNT Q4 2023 Earnings Presentation v7 AVIENT CORPORATION F O U R T H Q U A R T E R 2 0 2 3 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) F E B R U A RY 1 4 , 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. A reconciliation of each historical non-GAAP financial measure with the most directly comparable GAAP financial measure is attached to this presentation which is posted on our website at www.avient.com. ASHISH KHANDPUR PRESIDENT & CEO 4 5 PORTFOLIO TRANSFORMATION 5 7% 46% 66% 87% 100% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2020 2023 % o f A dj us te d EB IT D A Commodity JVs Distribution Performance Products & Solutions Specialty Businesses Adjusted EBITDA from Specialty Applications SUSTAINABILITY AS A GROWTH DRIVER 7 LONG-TERM REVENUE GROWTH DRIVERS Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other 60%+ Key Growth Drivers Total Company Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Composites 8–10% Healthcare 8–10% Asia / LATAM 5% Other 0–2% Avient 6% END MARKET OBSERVATIONS (% OF COMPANY SALES) ENERGY 5% DEFENSE 7% TELECOMMUNICATIONS 4% HEALTHCARE 7% 8 TRANSPORTATION 10% INDUSTRIAL 16% BUILDING & CONSTRUCTION 9% CONSUMER 19% PACKAGING 23% 9 REGIONAL OBSERVATIONS (% OF COMPANY SALES) 9 US & Canada Latin America EMEA Asia 41% 36% 18% 5% Q 4 2 0 2 3 R E S U LT S Q4 2023 PERFORMANCE VS.

The Audit Committeeʼs specific responsibilities are described in its charter, which is available on the Companyʼs website at: www.avient.com under the heading “Investors” and the subheading “Governance.” These are also posted and available on our website at www.avient.com, under “Governance” on our investor relations page. If achievement with respect to any performance measure did not reach threshold, then that measure would have been deemed to have 0% attainment.

THERMOPLASTIC ELASTOMERS North America Portfolio PRODUCT SELECTION GUIDE GENERAL PROPERTIES REGULATORY OVERMOLDING PROCESS FEATURES Appearance Hardness Specific Gravity Food Contact UL 94 Suitable Substrates Injection Extrusion ASTM (Shore) ASTM (D792) reSound™ REC Recycled Content Series VX2800-9003 C Natural 47A 0.94 - - PP ✔ - 25% post-consumer recycled (PCR) content (PVB from windshields and laminated glass); 1.77 cradle-to-gate product carbon footprint (PCF) VX2800-9004 C Natural 54A 0.95 - - PP ✔ - 25% PCR content (PVB from windshields and laminated glass) VX2800-0001 I Black 65A 0.89 - - PP ✔ - 25% post-industrial recycled (PIR) content VX2800-0001 I Natural 65A 0.89 - - PP ✔ - 25% PIR content VX2800-0001 C Black 65A 0.89 - - PP ✔ - 25% PCR content (ocean plastics) VX2800-0002 I Black 65A 0.88 - - PP ✔ - 40% PIR content VX2800-0003 C Gray 65A 0.88 ✔ - PP ✔ - 25% PCR/PIR content (food packaging) with application specific FDA rating VX0100-0001 AR I Black 79A 1.05 - - PC, ABS, PC/ABS ✔ - 30% PIR content reSound™ BIO Bio-based Series RS7900-0001 30N Natural 31A 1.00 - - PP ✔ - 35% bio-derived content (Gen 1 biomass) RS7900-0001 45N Natural 48A 1.11 - - PP ✔ - 35% bio-derived content (Gen 1 biomass) RS7900-0001 60N Natural 59A 1.11 - - PP ✔ - 35% bio-derived content (Gen 1 biomass) RS7900-0001 70N Natural 69A 1.09 - - PP ✔ - 35% bio-derived content (Gen 1 biomass) RS2800-0001 30N Natural 33A 0.85 - - PP ✔ - 50–60% bio-derived content (Gen 1 biomass) RS2800-0001 45N Natural 49A 0.85 - - PP ✔ - 50–60% bio-derived content (Gen 1 biomass) RS2800-0001 60N Natural 63A 0.87 - - PP ✔ - 50–60% bio-derived content (Gen 1 biomass) RS2800-0001 70N Natural 71A 0.86 - - PP ✔ - 50–60% bio-derived content (Gen 1 biomass) reSound™ Ultra-Low Carbon Footprint Series RS0200-9001 80 Natural 80A 0.87 - - PP, LDPE ✔ - -0.40 cradle-to-gate PCF RS0200-9001 60 Natural 60A 0.86 - - PP, LDPE ✔ - -0.03 cradle-to-gate PCF FEATURED TPES FOR CONSUMER APPLICATIONS CO NSUM ER Avient’s specialty thermoplastic elastomers (TPEs) are formulated to meet countless performance, application and aesthetic demands. Testing is on a scale of 1–10 (low-high odor) 1.844.4AVIENT www.avient.com Copyright © 2023, Avient Corporation. Contact Avient to tap into our expertise and learn more about our specialty TPEs.