Playbook in current environment 1. Executing flawlessly and continue advancing our strategy while prioritizing investments and resources for our growth vectors 1. 2. 3. 4. 5. 6. Color, Additives & Inks END MARKETS REGIONS 34% 21% 15% 11% 8% Packaging Telecom 1%Energy 1% 34% US & Canada Latin America Europe, Middle East Construction 15Copyright © .

Data not dependent on company form 1. Tax number of the company 21/1. Company numbers 49/1.

Avient acquired the Clariant Masterbatch business (CMB) on July 1, 2020 (the “Acquisition Date”). Operating Income $3,783 $4,100 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Previous Guidance Current Guidance $3,783 $4,300 $308 $360 $308 $410 $1.93 $2.40 $1.93 $2.80 (1) (1)(1) (1)(1) (1) 12 BALANCE SHEET • Deleveraging to 1.9x net debt to adjusted EBITDA by the end of 2021 • Driven by record adjusted EBITDA performance and strong free cash flow generation from asset light business • Future cash deployment: M&A, opportunistic share repurchases and balance sheet / continued leverage reduction 3.5x 2.7x 1.9x Net Debt / Adjusted EBITDA ($ in millions) 2021E Adjusted EBITDA 560$ Free Cash Flow 275$ Total Debt 1,860 Less: Cash (800) Net Debt 1,060$ 2021E Net Debt / Adjusted EBITDA 1.9x (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition SUSTAINABILITY • Most recent Sustainability report substantially expanded disclosure on key environmental and social topics Reduce Scope 1 & 2 greenhouse gas emissions by 35%.

TPEE AND TPU FILM MANUFACTURER H O T M E L T A D H E S I V E F I L M • Anti-phenol yellowing after storage • Keep natural color of product • No impact on melt flow ability • Prevented the appearance quality from yellowing after storage • Had no negative impact on the product’s mechanical properties • Extended the shelf life and durability of the product CesaTM Anti-phenolic Yellowing Additive KEY REQUIREMENTS WHY AVIENT AVIENT SOLUTION FUNCTIONALITY + CONVENIENCE LEARN MORE Avient Corporation 1 https://www.avient.com/products/polymer-additives Slide 1: TPEE and TPU Film MANUFACTURER

1. 1. 检查热电偶和加热圈 1. 2. 3. 4. 5. 6. 1. 2. 3. 4. 1. 2. 1. 2. 1. 2. 1. 2. 3. 1. 2. 3.

This information is as of March 1, 2023. Nicolas (1) 111,000 140,027 251,027 K.J. Name Number of Deferred Shares(1) R.E.

Base Resin PC PC/PSU PES PEI PP ABS PEEK PA Barrel Temperatures* °F (°C) Rear Zone 530–560 (277–293) 550–575 (288–302) 660–700 (349–371) 675–725 (357–385) 390–420 (199–216) 425–460 (219–238) 680–730 (360–388) 430–500 (221–260) Center Zone 515–560 (269–288) 540–565 (282–296) 650–690 655–710 (352–377) 380–405 (193–207) 415–450 (213–232) 670–710 (354–377) 420–490 (216–254) Front Zone 510–525 (266–274) 530–555 (277–291) 640–680 (338–360) 655–700 (346–371) 370–395 (188–202) 405–440 (207–227) 410–480 (210–249) Nozzle 520–535 (271–280) 540–565 (282–296) 650–690 665–710 (352–377) 380–400 (193–204) 415–450 (213–232) 660–700 (349–371) 420–490 (216–254) Melt Temperature 525–560 (274–293) 530–580 (277–304) 650–700 (343–371) 660–730 (349–388) 375–395 (191–202) 410–460 (210–238) 650–730 (343–388) 420–500 (216–260) Mold Temperature 175–250 (80–121) 160–220 (71–104) 280–350 (138–177) 275–350 (135–177) 100–135 (38–57) 150–180 (66–82) 300–425 (149–219) 160–230 (71–110) Pack & Hold Pressure 50%–75% of Injection Pressure Injection Velocity in/s 0.5–2.0 Back Pressure psi 50 Screw Speed rpm 40–70 40–70 40–70 40–70 40–70 40–70 40–70 40–70** Drying Parameters °F (°C) 6 hrs @ 250 4 hrs @ 250 4 hrs @ 275 (135) 4 hrs @ 250 3 hrs @ 300 (150) 2 hrs @ 200 (93) 3 hrs @ 275 (135) 4 hrs @ 180 (82) Cushion in 0.125–0.250 Screw Compression Ratio 2.0:1–2.5:1 2.0:1–2.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 Nozzle Type General General General General General General General Reverse Taper Clamp Pressure 5–6 Tons/in2 * A reverse temperature profile is important to obtain optimum conductive properties. Step each 90° bend in the system down in size (from sprue to gate) approximately 1/16" (1.5mm) to reduce pressure drop Draft Angle • Maintain a minimum draft angle of 1/2° per side.

RECYCLABILITY METHOD-1 • Preforms were produced by dosing 0.09% of Avient Fortis Amber-1 and 4% of our nylon- based oxygen scavenger Amosorb SolO2-2 • Preforms were ground down to a coarse granule size (~2mm) using a Retsch mill Figure 1. Picture of plaques originally made from preforms containing Fortis Amber-1 and Amosorb Solo2-2.

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. To provide comparable results, the company references “pro forma” financial metrics, which include the business results of Avient Protective Materials for periods prior to the Acquisition Date, as if the transaction occurred on January 1, 2021 and reflect Distribution as a discontinued operation. GUIDANCE 11 14.8% 15.8% Adjusted EBITDA Margin % Better-than-expected margins driven by: • Resilient demand for composites and sustainable solutions which improved mix of higher margin applications • Deceleration of raw material inflation • Cost reduction activities Q1 EBITDA BRIDGE 12 $ millions CAI: Price / Mix 19) Inflation (4) SEM: Price / Mix 6) Inflation (4) Net Price Benefit 17) Wage and Energy Inflation (13) Cost Reductions 8) FX (6) Q1 2023 Actual $134) Adjusted EBITDA Q1 2022 Pro Forma $ 176) Demand (48) • Weak demand conditions in-line with previous expectations • Pricing continues to cover inflation of raw materials, wages and energy U.S. & Canada 40% 38% 17% Q1 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 18% 23% Building and 6%Telecommunications END MARKET REVENUE (1) Total company sales and adjusted EBITDA of $846M and $134M, respectively, include intercompany sales eliminations and corporate costs $537M $91M $310M $64M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $134M$846M (1) 13 Q1 2023 SALES BY REGION Yo Y C H A N G E ( E X C L .

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. To provide comparable results, the company references “pro forma” financial metrics, which include the business results of Avient Protective Materials for periods prior to the Acquisition Date, as if the transaction occurred on January 1, 2021 and reflect Distribution as a discontinued operation. Avient 2011, 2018 and 2021 multiples reflect trailing 12 months EBITDA at December 31. 28 EV / 2023E EBITDA 6.5 8.5 11.0 10.8 16.1 15.5 14.1 14.0 10.3 21.0 19.0 14.3 12.1 11.8 11.7 11.5 9.7 11 21 23 PM AV FM Avient Historic Multiple Avient Specialty Other Specialty / AP P E N DI X 30 Performance Additives 16% Pigments 12% TiO2 Dyestuffs 2% Polyethylene Nylon Polypropylene Styrenic Block Copolymer Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 2022 pro forma results for the acquisition of Avient Protective Materials RAW MATERIAL BASKET SEGMENT DATA U.S. & Canada 40% 37% 18% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Building and END MARKET REVENUE $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) 9% 32 (1) Total company sales and adjusted EBITDA of $3,653M and $592M, respectively, include intercompany sales eliminations and corporate costs 2022 REVENUE | $2 .4 BILLION US & Canada 34% 38% END MARKET REGION 33 34% 21% Building & 1% Energy 2% COLOR, ADDITIVES & INKS 2022 PRO FORMA REVENUE | $1 .3 BILLION US & Canada 52% 35% 34 19% 8%Industrial 16% 9% Defense Building & END MARKET REGION SPECIALTY ENGINEERED MATERIALS 32% 27% 14% Building & 3% 1% Defense 1% (18% of sales) 9% 2022 PROFORMA AVIENT REGIONAL SALES 27% 14% 17% Building & (37% of sales)Transportation 12% Building & US & Canada (40% of sales) 7% 56% 23% 7% Building & 1% LATAM (5% of sales) 3% 35 BY END MARKET 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.