GLOBAL ELECTRICAL EQUIPMENT PROVIDER S W I T C H G E A R P L U N G E R • Customer looking to replace metal. Material needs to: • Pass ampere test at 10A and 16A conditions • Pass glow wire test at 750°C at 1.5mm thickness • Have a lubrication effect and dimensional stability at an elevated temperature of 110°C • Meet test criteria of 250K cycles switch on/off without failure or dimensional changes • Reduced risk of shock by replacing brass with polymer formulation that met all key electrical and functional performance criteria • Eliminated the need for secondary lubricant due to self- lubricating properties of LubriOne materials • Enabled in-house molding which removed reliance on external part supplier and allowed direct management of global inventory levels LubriOne™ Internally Lubricated Formulations KEY REQUIREMENTS WHY AVIENT?

LEARN MORE TIER 2 MOLDER P A N E L F O R C O N S T R U C T I O N V E H I C L E S • Transition from painting extruded sheet (3-5mm) to molded-in color for two different thermoplastics • UV stability • Good appearance for visible part • Expedited approved solution that delivered the appearance and performance of a painted part • Developed formulations for two materials- PMMA and ABS • Offered aluminum appearance and required UV stability SmartBatch™ FX for Paint Replacement KEY REQUIREMENTS WHY AVIENT?

ELECTRICAL APPLIANCE BRAND H O U S E H O L D P R O D U C T S I N R E C Y C L E D A B S A N D P S • Support to qualify a new raw material sourcing process • Color prediction feasibility for new material grades • Color design guidance to maintain brand identity and differentiation • Color solutions that work with mixed grades of rABS and recycled polystyrene • Worked with the brand owner to test multiple styrenic grades and understand the best fit across colors and recycled resins • Supported integration of multiple resin solutions for the best rendering and aesthetics in rABS and rPS • Helped approve 7 colors to be launched within the forthcoming 18 months PCR Color Prediction Service KEY REQUIREMENTS WHY AVIENT?

AUTO DATA CABLE MANUFACTURER C O A X I A L S I G N A L C A B L E J A C K E T • Provide good chemical resistance like that of machine oil • Pass 3,000 hours aging test of finish goods • Have low dielectric property - characteristic impedance of transmission line: 100Ω, capacitance in water: around 102.8pf/m • Provided excellent performance with low dielectric constant to make the jacket layer of signal cables have low capacitance loss • Offered a solution by combining physical and chemical foaming products in the foaming layer to reduce the dielectric constant further • Maintained exceptional mechanical properties under high temperatures Maxxam Polyolefin Formulations KEY REQUIREMENTS WHY AVIENT?

APPLIANCE MANUFACTURER E L E C T R O N I C C A R D H O L D E R • UL 94 and glow wire properties • Easy to mold for complex geometries • Mechanical properties for snap hooks • Easy to process • Good cost/performance • Utilized material expertise and experience to provide a formulation that met UL and IEC standards • Met agreed specification within narrow tolerances • Provided consistent quality • Met Turkish and EU regulations including REACH and RoHS Maxxam NHFR Non-Halogen Flame Retardant Polyolefin Formulation KEY REQUIREMENTS WHY AVIENT?

D is t. ) K W R P P G F U L R P M A V Y F M C H U N H X L S C L E C L E M N C E A S H Source: Peer data per Bloomberg market data as of February 15, 2022. Free cash flow conversion calculated as (EBITDA – Capex) / EBITDA HIGH FREE CASH FLOW CONVERSION Avient reflects 2021 estimated EBITDA of $635M and estimated CAPEX of $90M (excludes IT system upgrade of $25M and synergy capture CAPEX of $20M) Source: Peer data per Bloomberg market data as of February 15, 2022 86 89 85 80 76 76 89 85 79 78 76 76 76 70 69 63 8 A vi e nt K W R P P G F U L A V Y R P M F M C U N V R H U N B N R H X L E C L C E A S H E M N S C L A LB Source: Peer data per Bloomberg market data as of February 15, 2022 Total Enterprise Value / 2022E EBITDAWith the Clariant Color business acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets. OUR VALUATION VERSUS PEERS Avient Specialty Formulators Other Chemical/Specialty Companies 5.4 8.5 10.1 10.0 15.7 15.0 14.2 12.7 10.2 25.0 19.7 17.7 13.2 12.3 10.0 9.9 8.9 8.5 8.3 6.6 A vi en t (2 01 1) A vi en t (2 01 6) A vi en t (2 02 1) A vi en t (T o da y) R P M K W R P P G A V Y F U L A L B E C L H X L A S H F M C B N R E M N U N V R C E S C L H U N Historic Multiple SUMMARY: WHY INVEST IN AVIENT?

& 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 2023 SALES BY REGION Yo Y C H A N G E ( E X C L . 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 en 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 MULTIPLE EXPANSION 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. Avient 2011 and 2018 valuations reflect trailing 12 months EBITDA at December 31 of the respective years. 38 EV / 2023E EBITDA Historic Multiple 6.5 8.3 9.6 13.2 13.0 12.8 11.3 8.6 17.9 16.8 10.7 8.8 8.8 8.7 7.5 6.9 A vi en t (2 01 1) A vi en t (2 01 8) A vi en t (2 02 3) K W R P P G R P M A V Y F U L E C L H X L F M C S C L C E A S H E M N H U N 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.

Cable constructions using FireCon CPE formulations are suitable for the following UL Standards: UL 13 - Power-Limited Circuit Cables UL 44 - Thermoset-Insulated Wire and Cable UL 62 - Flexible Cords and Cables UL 1277 - Electrical Power and Control Tray Cables with Optional Optical-Fiber Members UL 2250 - Instrumentation Tray Cable KEY CHARACTERISTICS • Retains flexibility at temperatures below 0°C • Resistant to acids, alkalis, oils, fuels and chemical solvents • Excellent balance of physical properties • Suitable for VW1 and tray cable rated applications • Available in UV resistant grades • Available in custom colors MARKETS AND APPLICATIONS • Oil, gas and petroleum applications • Tray cable • Industrial cable • Low-voltage power cables • Medium-voltage power cables • Control cables • VW1 applications PRODUCT BULLETIN To learn more about FireCon CPE jacketing solutions, contact Avient at 1.844.4AVIENT www.avient.com FIRECON™ CPE 30-33 RoHS Black CPE 37-36 RoHS Black CPE 37-31 RoHS Black CPE 37-31 RoHS Natural Specific Gravity 1.31 1.38 1.39 1.39 MFI (190°C, 21.6 Kg) 15 22.4 34.3 34 Durometer Hardness 39D 31D 34D 34D Tensile Strength, PSI 1,499 2,200 2,096 1,800 Tensile Elongation (%) 350 300 325 300 UL Temperature Rating °C 90 90 90 90 LOI (% Oxygen) 30 37 37 37 Brittleness Temperature °C -33 -36 -31 -31 TECHNICAL PROPERTIES Copyright © 2020, Avient Corporation.

Standard ISO 900 1:2O15 Scope of supply c o II +t (u U t-r- '.F t- (u () (n rU '- c) l cu q) t_ l m Design, development, marketing & sales and related application support of UHMWPE, Ultra-High-Motecutar-Weight PolyEthytene fibers and UniDirecfionat sheets. Avient Protective Materiats (Heerten) Eisterweg 3, 6422 pN Heerten, The NetherIands Design, devek:pment, marketing & sales and related apptication support of UHA4WPE, Uttra - High -Motecutar-Weigh t PolyEthytene fibers and UniDirectionat sheets Site Address Scope @ EIT:TilU rE:I:.TETCI c o t rrl +,t (u U tr-rf. r- +-t r_ o CJ V) CU '(- (.) f co (.) t_ f m Appendix awarded to Avient Protective Materials Urmonderbaan 22 6167 RD Geleen The Netherlands This certificate arso concerns berow mentioned organization(s) and site(s). rii"e r8, 3821 BB Amersfoorr Further ctarifications reqarding.the scope of this certificare 9nd the.dppricabitity of Lhe rnanagement system requirements mav be obrarned bv consurting the organization. i"'ii'"ii'ini, cerrificate variaiiv prease c;r: r31 (0) 88 450 5500 Paae Z of z certificare No: NL027324 tp, R ltfiilt. sy$. fivA [ 248

Product Name Material/ Product Code Type Initiation Temp, C Optimum Gas Yield Temp, C Gas Yield Range, cc/g Uses/ Applications Usage Resins POWDER Hydrocerol BIH PEAUFF Endo 140 160 140–150 • Weight reduction • Sink mark removal • Warpage reduction EVA, polyethylene, PE copolymers, TPEs/TPOs, PVC Hydrocerol Compound EMASAD Endo 140 200 135–145 • Weight reduction • Sink mark removal • Warpage reduction Polyethylene, polypropylene, TPEs/TPOs, styrenes, acrylics, TPUs, POM, PVC Hydrocerol HK EMA0766025 Endo 200 210 135–145 • Weight reduction • Sink mark removal • Warpage reduction Polypropylene, styrenes, acrylics, polyamides Hydrocerol 1480 EMA0766027 Endo-Exo 140 180 240–259 • Weight reduction • Sink mark removal • Warpage reduction EVA, polyethylenes, PE copolymers, TPEs/TPOs, styrenes, acrylics, PVC Product Name Material/ Product Code Type Initiation Temp, C Optimum Gas Yield Temp, C Gas Yield Range, cc/g Uses/ Applications Usage Resins MASTERBATCH Hydrocerol 862 PLASAD Endo 140 160 10–20 • Sink mark removal • Warpage reduction EVA, polyethylene, PE compolymers, TPOs/TPEs Hydrocerol BIH-40-E PLASAF Endo 140 160 55–65 • Weight reduction • Sink mark removal • Warpage reduction EVA, polyethylene, PE compolymers, TPOs/TPEs Hydrocerol 1004 PEAUFQ Endo 140 160 80–90 • Weight reduction EVA, polyethylene, PE compolymers, TPOs/TPEs Hydrocerol CF-5-E PEASCF Endo 140 200 5–10 • Sink mark removal • Warpage reduction Polyethylene, polypropylene, TPEs/TPOs, styrenes, acrylics, TPUs, POM Hydrocerol 1602 PRASAD Endo 140 200 50–60 • Weight reduction • Sink mark removal • Warpage reduction Polyethylene, polypropylene, TPEs/TPOs, styrenes, acrylics, TPUs, POM Hydrocerol PEA0820021 PEA0820021 Endo 140 200 25–35 • Weight reduction • Sink mark removal • Warpage reduction Styrenes Hydrocerol PEA08200095 PEA0820095 Endo-Exo 140 180 100–120 • Weight reduction • Sink mark removal • Warpage reduction PVC Hydrocerol ITP-820 PRAN698588 Endo 200 210 5–10 • Sink mark removal • Warpage reduction EVA, polyethylene, PE copolymers, TPEs/TPOs, PVC Hydrocerol HK-40-E PLASAH Endo 200 210 55–65 • Weight reduction • Sink mark removal • Warpage reduction Polyethylene, polypropylene, TPEs/TPOs, styrenes, acrylics, TPUs, POM, PVC Hydrocerol CT-3205-B OMA0698633 Endo 200 210 50–60 • Weight reduction • Sink mark removal • Warpage reduction PLA Hydrocerol 1135 PEAN698616 Exo 170 190 20–30 • Sink mark removal • Warpage reduction Polyethylene, polypropylene, TPEs/TPOs, styrenes, acrylics, TPUs, POM Hydrocerol 8418M PHA0698418 Exo 170 190 50–60 • Weight reduction • Sink mark removal • Warpage reduction Polyethylene, polypropylene, TPEs/TPOs, styrenes, acrylics, TPUs, POM Product Name Material/ Product Code Type Initiation Temp, C Optimum Gas Yield Temp, C Gas Yield Range, cc/g Uses/ Applications Usage Resins MASTERBATCH Hydrocerol 141 PEASCH Exo 200 210 10–20 • Sink mark removal • Warpage reduction Polypropylene, styrenes, acrylics, polyamides Hydrocerol 1191 PRAN698433 Exo 200 210 55–65 • Weight reduction • Sink mark removal • Warpage reduction Polypropylene, styrenes, acrylics, polyamides Hydrocerol NBA0820012 NBA0820012 Exo 240 260 25–35 • Weight reduction • Sink mark removal • Warpage reduction Polyesters, high-temperature resins Hydrocerol XH-901 SAASCC Exo 240 260 30–40 • Weight reduction • Sink mark removal • Warpage reduction Polycarbonate blends, polycarbonate, high-temperature resins Hydrocerol 1376-4 PRAN698541 Endo-Exo 200 210 90–100 • Weight reduction • Sink mark removal • Warpage reduction Polypropylene, styrenes, acrylics, polyamides, PVC LIQUID Excelite FA-37 CC10212522 Endo-Exo 120 140 65–75 • Weight reduction/ WPC Polyethylene Excelite PF-1 CC01053625 Endo-Exo 120 140 55–65 • Weight reduction Vinyl Excelite FA-185 CC10303252 Endo 140 200 75–85 • Weight reduction • Direct gas assist Polyolefin Excelite Foam PPRO CC10250288 Endo 160 200 50–60 • Weight reduction • Warpage reduction Polypropylene Excelite FA-77 CC10232527 Endo-Exo 120 140 85–95 • Weight reduction/ WPC Polyethylene Excelite FA-108 CC10290626 Endo 180 200 55–65 • Weight reduction • Sink mark removal Polyolefin Excelite FA-112 CC10313065 Endo 140 200 50-60 • Weight reduction • Sink mark removal Polyolefin 1.844.4AVIENT www.avient.com Copyright © 2022, Avient Corporation.