TECHNICAL BULLETIN UV RESISTANCE • UV testing: QUV-A Test, 0.68 @ 45C • Comparable results to traditional TPEs reSound OM 5510-45N reSound OM 5510-60N Bio-derived Content (%) 40% 50% Hardness, Shore A 45 60 Delta E after 150 hrs. 0.22 0.23 Delta E after 300 hrs. 1.68 0.56 AGING – BONDING STRENGTH ONTO ABS reSound OM 5520-55N Room Temperature 70C 1 day 1 week 2 weeks 6 months 1 week 2 weeks 3 weeks Bio-derived Content (%) 49% 49% 49% 49% 49% 49% 49% Hardness, Shore A 54 54 55 54 55 56 OM Substrate ABS ABS ABS ABS ABS ABS ABS OM Avg. Peel, PLI 12 19 23 20 19 reSound OM 5510 for PP reSound OM 5510-60N Room Temperature 70C 1 day 1 week 2 weeks 6 months 1 week 2 weeks 3 weeks Bio-derived Content (%) 50% 50% 50% 50% 50% 50% 50% Hardness, Shore A 60 60 60 60 60 60 60 Specific Gravity 0.89 0.89 0.89 0.89 0.89 0.89 0.90 50% Modulus, PSI 247 241 244 251 234 244 240 100% Modulus, PSI 343 333 338 339 321 331 326 Tensile Strength, PSI 625 621 647 610 633 662 642 Elongation, % 306 314 309 313 312 315 315 Tear Strength, PLI 109 108 113 113 111 117 115 reSound OM 5520-55N Room Temperature 70C 1 day 1 week 2 weeks 6 months 1 week 2 weeks 3 weeks Bio-derived Content (%) 49% 49% 49% 49% 49% 49% 49% Hardness, Shore A 54 54 55 55 54 55 56 Specific Gravity 0.95 0.95 0.96 0.96 0.95 0.96 0.96 50% Modulus, PSI 258 256 256 265 266 271 257 100% Modulus, PSI 353 355 357 362 373 379 367 Tensile strength, PSI 637 615 637 669 651 674 642 Elongation, % 319 315 319 333 313 319 315 Tear Strength, PLI 146 136 133 142 137 138 141 reSound OM 5510-45N Room Temperature 70C 1 day 1 week 2 weeks 6 months 1 week 2 weeks 3 weeks Bio-derived Content (%) 40% 40% 40% 40% 40% 40% 40% Hardness, Shore A 45 46 47 46 46 45 45 Specific Gravity 0.88 0.89 0.89 0.89 0.89 0.89 0.90 50% Modulus, PSI 153 158 154 162 137 136 133 100% Modulus, PSI 251 259 259 261 226 222 218 Tensile Strength, PSI 438 481 451 495 417 470 486 Elongation, % 215 240 211 243 204 227 238 Tear Strength, PLI 84 81 87 82 83 85 84 AGING – PROPERTY RETENTION • Tested at room temperature and 70° C for comparison • Hardness, tensile strength elongation and modulus showed great retention Overmolding onto PP Overmolding onto ABS RHEOLOGY Suitable for injection molding and overmolding 1.0 10 100 1000 10000 100000 10.0 100.0 1000.0 reSound OM 5510-30N reSound OM 5510-45N reSound OM 5510-60N reSound OM 5510-70N Shear Rate, 1/s C ap ill ar y Vi sc os it y, P a* s 1.0 10 100 1000 10000 100000 10.0 100.0 1000.0 reSound OM 5520-55N Shear Rate, 1/s C ap ill ar y Vi sc os it y, P a* s Capillary viscosity at 200°C Capillary viscosity at 200°C reSound OM 5510 for PP reSound OM 5520 for ABS www.avient.com Copyright © 2020, Avient Corporation.

Pro Forma Financial Information The Company acquired Avient Protective Materials (“Dyneema”) on September 1, 2022 (the “Acquisition Date”) and sold the Distribution segment on November 1, 2022. EBITDA Margins (1) 5.4% 11.5% 16.2% 2006 2018 2022PF $142 $408 $592 2006 2018 2022PF 2006 figures exclude joint venture results 2022 pro forma for the acquisition of Avient Protective Materials Adj. Avient 2011 and 2018 valuations reflect trailing 12 months EBITDA at December 31 of the respective years. 29 EV / 2023E EBITDA Historic Multiple 6.5 8.3 10.0 15.6 13.9 13.7 12.8 9.5 18.0 17.5 12.3 10.2 9.7 8.8 8.4 5.9 A vi e n t (2 0 1 1 ) A vi e n t (2 0 1 8 ) A vi e n t K W R P P G R P M A V Y F U L H X L E C L F M C A S H S C L H U N E M N C E SEGMENT DATA U.S. & Canada 40% EMEA 37% Asia 18% Latin America 5% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 20% Packaging 24% Industrial 15% Building and Construction 10% Telecommunications 4% Energy 4% Defense 6% END MARKET REVENUE (1) Total company adjusted EBITDA of $592M includes corporate costs $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) Transportation 9% Healthcare 8% 31 C O L O R , A D D I T I V E S & I N K S 2 0 2 2 R E V E N U E | $ 2 . 4 B I L L I O N US & Canada 34% EMEA 38% Asia 20% Latin America 8% END MARKET REGION 32 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 8% Building & Construction 11% Telecommunications 1% Energy 2% S P E C I A L T Y E N G I N E E R E D M A T E R I A L S 2 0 2 2 P R O F O R M A R E V E N U E | $ 1 . 3 B I L L I O N END MARKET US & Canada 52% EMEA 35% Asia 13% REGION 33 Packaging 5% Consumer 19% Healthcare 8%Industrial 16% Transportation 10% Telecommunications 10% Energy 9% Defense 15% Building & Construction 8% Packaging 32% Consumer 27% Healthcare 8% Industrial 14% Building & Construction 5% Telecommunications 3% Energy 1% Defense 1% Asia (18% of sales) Transportation 9% 2 0 2 2 P R O F O R M A AV I E N T R E G I O N A L S A L E S B Y E N D M A R K E T Packaging 27% Consumer 14% Healthcare 5% Industrial 17% Building & Construction 10% Energy 5% Defense 8% EMEA (37% of sales)Transportation 11% Packaging 13% Consumer 24% Healthcare 12% Industrial 15% Building & Construction 13% Energy 5% Defense 5% US & Canada (40% of sales) Transportation 7% Packaging 56% Consumer 23% Healthcare 4% Industrial 7% Building & Construction 4% Telecommunications 1% LATAM (5% of sales) Transportation 5% Telecommunications 3% Telecommunications 6% 34 Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

Committees: 1, 2 Gregory J. Committees: 1, 4 Kim Ann Mink, Ph.D. Committees: 1, 3 Ernest Nicolas Chief Enterprise Operations Officer, HP Inc.

CESA™ Extend Additives Chain Extension CESA EXTEND – STANDARD OFFERINGS PRODUCT SELECTION GUIDE POLYMER FAMILY MATERIAL PRODUCT NAME PRODUCT TYPE DOSAGE Nylon ABA0698501 CESA Extend 78501L Linear 1–6% Nylon ABA0698502 CESA Extend 78502X Branched 1–6% Polyester NBA0698490 CESA Extend 58490 Linear 1–6% Polyester NBA0820023 CESA Extend NBA0820023 Branched 1–6% Polycarbonate NCA0820004 CESA Extend 90032 Linear 1–6% Polycarbonate NCA0820005 CESA Extend 90033 Branched 1–6% TPU RUA0698460 CESA Extend 88460 Linear 1–6% TPU RUA0698455 CESA Extend 88455 Branched 1–6% CESA Extend additives can be used in combination with other CESA masterbatches, and formulations can be customized for most applications.

Runners 1. Venting 1. Draft Angle 1.

Pro Forma Financial Information The Company acquired Avient Protective Materials (“Dyneema”) on September 1, 2022 (the “Acquisition Date”) and sold the Distribution segment on November 1, 2022. Purchase price multiple rapidly declining on strength of business and synergy capture 7 $133 $201 2019PF 2022E 7 Clariant Color EBITDA Growth Purchase Price Multiple 10.8x 7.0x 6.4x 2019PF 2021 2022E w/ Full Synergies (1) (1) 11.9% 16.3% 2019PF 2022E EBITDA Margins (1) CLARIANT COLOR: TRANSFORMATIONAL ACQUISITION ($ in millions) (1) Financial information is pro forma to include a full year of Clariant Color business SUNBELT PVC Resins DSS 20 Acquisitions $4.8B Investment $2.7B of Annual Revenue 5 Divestments $2.3B Proceeds TPE PP&S HISTORI C SPECI AL IZATION THROUGH M& A 8 Distribution DSM Protective Materials BOLT-ON AC QUI SITI ON HISTORY 9 Commercial Resources Operating Income ($ in millions) Operating Margins 259 363 At Acquisition 2022E $40 $139 At Acquisition 2022E 9% 22% At Acquisition 2022E Established Acquisitions (> 7 years) + 40% + 248% + 1300 bps I N V E S T T O G R O W S P E C I A LT Y T R A N SF O R M ATI O N T O D A Y 7% 46% 67% 86% 100% 0% 20% 40% 60% 80% 100% 2005 2010 2019 2021 2022 PF % o f A d ju st e d E B IT D A • Commodity JVs • Distribution • Performance Products & Solutions • Specialty Businesses (1) Adjusted EBITDA is EBITDA excluding corporate costs and special items (2) Pro forma for the acquisition of Dyneema® and divestiture of Distribution (1 ) (2) 10 Healthcare 4% Packaging 8% Consumer 10% Building & Construction 43% Industrial 15% Transportation 14% Energy 4% Telecom. 2% 2006 2022 Pro Forma Healthcare 8% Packaging 23% Consumer 21% Building & Construction 10% Industrial 15% Transportation 9% Energy 4% Telecom. 4% Defense 6% END MAR KET F OCUS ON LESS CYCL IC AL I ND USTRI ES 11 14.8% 17.6% 21.0% 2018 2020 2022 PF 1.8% 2006 15.3% 16.2% 17.0% 2018PF 2020PF 2022E CAI 2.7% 2006 SEM SPEC IA LTY EBI TDA MA RGI N EX PANSION 12 • Portfolio transformation accelerates growth in less cyclical, higher margin end markets • Investments in our composites platform continue to drive margin expansion (1) (1) (1) 2018 and 2020 financial information is pro forma to include a full year of Clariant Color acquisition PORTFOLIO EVOLUTION OVER THE YEARS 13 Adj. The Q3 2022 "Pro Forma APM" adjustments reflect periods prior to the acquisition date and are preliminary estimates for APM’s results for the months of July and August. 2 Reconciliation of Avient consolidated pro forma EBITDA Q3 2022 Q3 2021 Avient(1) Pro forma APM(1) Pro forma Avient Avient Pro forma APM Pro forma Avient Net income from continuing operations (27.8) 3.9 (23.9) 33.4 0.3 33.7 Income tax expense (1.2) 0.6 (0.6) 2.0 2.5 4.5 Interest expense 37.3 1.8 39.1 19.0 11.2 30.2 Depreciation and amortization 39.8 10.9 50.7 36.6 18.4 55.0 EBITDA 48.1 17.2 65.3 91.0 32.4 123.4 Special items, before tax 82.0 — 82.0 19.9 — 19.9 Interest expense included in special items (10.0) — (10.0) — — — Depreciation included in special items (0.8) — (0.8) (0.9) — (0.9) Adjusted EBITDA $ 119.3 $ 17.2 $ 136.5 $ 110.0 $ 32.4 $ 142.4 (1) - Q3 2022 Avient results reflect one month of APM’s results while owned by Avient, as the acquisition closed on September 1, 2022.

Committees: 1, 2 GREGORY J. Birmingham, Alabama 1. Santa Clara, Mexico 1.

Name of topic CABLE PRODUCER P H O T O V O L T A I C C A B L E • Simplified supply chain and inventory by providing one solution for both insulation and jacket coating • Provided a material that gave cable a good surface finish and improved cable life time value (passed Arrhenius life time prediction as per IEC 60216-1 in internal lab test) • Reduced catalyst dosage resulting in lower material cost • Improved customer processing speeds • Enabled flame retardant performance to EN 50618 and IEC 60332-1 standards on complete cable ECCOH™ XL 8148 + ECCOH XL CAT 005 Formulations KEY REQUIREMENTS WHY AVIENT?

Page 1 / 1 has been assessed and certified as meeting the requirements of ISO 14001:2015 For the following activities The Design and Manufacturing of Plastic Color Concentrated, Plastic Additive Concentrated and Pigment Powder for Thermoplastic & Rubber Industries.

AVIENT SOLUTION SUSTAINABILITY + AESTHETICS LEARN MORE Avient Corporation 1 https://www.avient.com/products/polymer-colorants/high-temperature-color-concentrates/colorant-chromatics-metallic-effect-pre-colored-sulfone-colorants Slide 1: Aviation COMPONENTs manufacturer