MOVING HIGH PERFORMANCE FIBERS FORWARD Key Features • High Strength & Modulus • Corrosion resistant • Electrical & thermal conductor • Flame Resistant • UV Inert • X-Ray Permeable • Excellent EMI (Electromagnetic Interference) Disadvantages • Susceptible to filamentation • Conductivity may be a hindrance to some processing • Susceptible to galvanic corrosion • Poor abrasion resistance (untreated) FIBER-LINE® PROCESS FOR CARBON FIBER • Coating • Twisting • Extrusion • Pultrusion • Precision Winding FIBER-LINE® CARBON FIBER PRODUCTS • Strength Members • Packing Yarn • Belt & Hose Reinforcement Yarn • Synthetic Wire Rope WHY CARBON FIBER? °C Various Abrasion Resistance Yarn on Yarn Abrasion Ultraviolet (UV) Resistance Flame Resistance Chemical Resistance (Acid) Chemical Resistance (Alkali) Chemical Resistance (Organic Solvent) O X P P P P P This data is provided for informational purposes only, and does not constitute a specification.

& Canada 40% EMEA 38% Asia 17% Latin America 5% Q1 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 18% Packaging 23% Healthcare 7% Industrial 16% Building and Construction 10% Defense 6%Telecommunications 4% Energy 5% 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) 14 Transportation 11% Q1 2 023 SA LES BY R EGI ON Y o Y C H A N G E ( E X C L . F X ) -10% -11% -3% -12% 15 US & Canada Latin America EMEA Asia Avient ex. Avient Specialty Formulators Other Specialty / Chemical Companies 2023E(%) 37 79 89 83 81 76 73 90 82 77 76 74 70 58 22 A vi e n t K W R P P G F U L A V Y R P M F M C C E H X L A S H E C L H U N E M N S C L M U LT I P L E E X PA N S I O N Avient Specialty Formulators Other Specialty / Chemical Companies Source: Peer data per Bloomberg as of May 31, 2023 Note: Avient reflects 2023 adjusted EBITDA guidance of $530M and closing share price of $36.50.

X ET-14545-001 Black X ET9200-0001 RS NAT X ST 14790-001-1

X 44587-1A-02-1 X 161D-5-1 X 161D-5-2

With a rolled storage size of just 7" x 6" (18 x 15 cm), the Revolve packs up at one-third of the size of traditional tripod designs.

X GV #SR-10428 Blue X ST 13442-001-2 X GT-13677-1A

X MF-2172-003 Natural X GT-13279-1A X GT-13279-1B

X HC 215783#SR-16977 Blue X HC 215783#SR-16971 Pink X HC 215783#SR-16974 Gray

X GT-15194-01 X GT-15194-02 X GT-15991-1A

Autoinjector Pen - Avient Application Study.mm (1) AUTO-INJECTOR APPLICATION STUDY M A T E R I A L T E C H N O L O G I E S + S E R V I C E S F O R N E X T G E N E R A T I O N D E S I G N S Avient Corporation 1 Avient Corporation 2 Innovating Design Medical innovations and plastics have gone hand-in-hand to make healthcare safer, cleaner, and more accessible for all. Pigments and eye-catching special effects • Prompt, precise and custom color matching • Biocompatible functional additives • FDA CFR 21, USP VI, ISO 10993-X, and/or USP 661-X • ISO 13485 facilities Avient Corporation 5 4.