ONFLEX™ LO 7120-45 ONFLEX™ HT 40A-3S2131 BERGAFLEX™ BFIG 45A-300 Applications HVAC Seals HVAC Seals HVAC Seals Interior - direct airflow Interior & exterior Interior - direct airflow HVAC feature Low VOC/FOG & odor Low VOC/FOG & odor Low odor Cold air Hot air Cold air VDA 270 ≤3.0 ≤3.0 ≤3.0 VOC/FOG VDA 278 (VOC) 97µg/g 100µg/g 196µg/g VDA 278 (FOG) 1131µg/g 1116µg/g 1707µg/g DIN 75201 (FOG) 0.3mg 1.7mg 1.1mg 73°F (23°C) 72 hrs 15% 12% 15% 158°F (70°C) 22 hrs 45% 28% 50% 212°F (100°C) 22 hrs 70% 45% 90% Density 1.15 g/ml 1.00 g/ml 1.17 g/ml Processing Injection Molding Injection Molding/ Extrusion Injection Molding Bonds to Polypropylene Polypropylene/ Polyethylene Polypropylene Hardness range 35–65 Shore A 40–70 Shore A 35–65 Shore A HOW GLS TPEs MAKE THE DIFFERENCE IN AUTOMOTIVE HVAC APPLICATIONS • Low VOC/FOG – externally tested to VDA 278 and shows significant reductions in volatile organic compounds and fogging when compared to current TPE technologies • Industry standards – helps to achieve VOC/ FOG performance standards for improved VIAQ • Reduced manufacturing steps – does not require pre-drying or post heating to reduce VOC in parts produced • Design optimization – color can be added at the machine • Easy to process – can be extruded, injection molded and extrusion blow molded • Recyclable – Our automotive TPEs are compatible with most municipal recycle streams • Global support – Avient automotive TPEs can be manufactured in locations that are convenient to your operations, including North America, Europe or China To learn more about GLS TPEs for automotive applications, contact Avient at +1.844.4AVIENT (+1.844.428.4368).

Page 93 2011 Highlights • Versus 2010, revenue growth of 9% drives 23% increase in adjusted operating income • Adjusted EPS expands 29% to all-time high of $1.02 Net Sales Adjusted Operating $1.02 Adjusted EPS $2,622 $2,643 $2,739 $2,061 $2,622 $2,864 Net Sales $88 $87 $72 $59 $147 $181 Adjusted Operating Income $0.12 $0.27 $0.21 $0.13 $0.79 $1.02 ($ millions) ($ millions) Page 94 2011 Highlights • Each platform contributed to our year over year operating income growth • Record OI achieved in Specialty and POD • Ten quarters of double-digit adjusted EPS expansion POD PP&SSpecialty Platform ROS%* 0.6% 1.5% 3.2% 4.3% 5.3% 8.4% 8.0% 2.9% 2.6% 3.0% 3.5% 4.0% 4.6% 5.6% 6.7% 5.5% 6.1% 3.1% 5.0% 7.0% 7.2% $20 $19 $22 $28 $25 $42 $56 O p e ra ti n g I n c o m e POD $76 $64 $66 $31 $33 $54 $62 O p e ra ti n g In c o m e PP&S $5 $13 $31 $46 $46 $87 $89 O p e ra ti n g I n c o m e Specialty Platform *ROS% is defined as adjusted operating income % of revenue ($ millions) Page 95 2011 Highlights • Continued portfolio repositioning � Sale of SunBelt equity investment � Acquisition of specialty companies ColorMatrix and Uniplen • World-class working capital of 9.6% maintained while improving on-time delivery to 94%improving on-time delivery to 94% 81% 87% 88% 95% 93% 92% 94% 2005 2006 2007 2008 2009 2010 2011 14.3% 16.2% 14.4% 18.9% 11.7% 9.6% 9.6% 2005 2006 2007 2008 2009 2010 2011 On-Time Delivery Working Capital % of Sales Page 96 First Quarter 2012 Highlights • Revenues increased 9% over Q1 2011 to a new quarterly record • Adjusted EPS increased 12% $0.26 $0.29 Q1 2011 Q1 2012 Adjusted EPS • Adjusted EPS increased 12% over prior year • All platforms delivered double-digit operating income growth Q1 2011 Q1 2012 $25.2 $14.7 $29.1 $17.8 $16.7 Specialty PP&S POD Q1 2011 Q1 2012 Adjusted Operating Income $14.3 ($ millions) Page 97 • Total Debt at 3/31/12 Less: Cash Net Debt • Available Liquidity $706 186 $520 $300 $360 $250 $300 $350 $400 $450 Debt Maturities As of March 31, 2012 ($ millions) Debt Maturities & Liquidity Summary – 3/31/12 • Available Liquidity Cash ABL Availability Total Liquidity • Net Debt / EBITDA* = 1.9x $186 156 $342 *Adjusted EBITDA TTM Pro forma for ColorMatrix $50 $300 $0 $50 $100 $150 $200 $250 2015 2017 2020 Page 98 • Repurchased 6 million shares in 2011 Share Share RepurchaseRepurchase • Introduced a quarterly dividend in Q1 2011 and increased in Q1 DividendsDividends • Expanding our sales, marketing, and technical capabilities is top Organic Organic GrowthGrowth • Targets that expand our: • Specialty offering • End market presence AcquisitionsAcquisitions Use of Cash Current Cash Balance = $186M Net Debt / EBITDA* = 1.9X • 7.9 million shares remain available for repurchase under the current authorization increased in Q1 2012 • Objective of maintaining and growing capabilities is top priority • Investing in operational and LSS initiatives • CAPEX • End market presence • Geographic footprint • Synergy opportunities • Adjacent material solutions *Adjusted EBITDA TTM Pro forma for ColorMatrix Page 99 Page 100

Key Features • Excellent heat & flame resistance • High chemical resistance • Low thermal shrinkage • Self-extinguishing flame retardant properties • Soft-hand yields good textile properties Disadvantages • Low tenacity • Low modulus FIBER-LINE® PROCESS FOR NOMEX® META-ARAMID • Coating • Twisting • Precision Winding FIBER-LINE® NOMEX® PRODUCTS • Packing Yarn • Wire Harness Yarn • Industrial Fabric Yarn Property UOM Value Breaking Tenacity g/d 5.0 Specific Gravity Ratio 1.38 Elongation @ Break % 30.0 Tensile Modulus g/d 125 Moisture Regain* % 4.5 Creep** % N/A Shrinkage*** % .4 Melt Point °C None Decomposition Temp. °C TBD Meta-Aramid Properties CHEMICAL COMPATIBILITY Chemical Resistance to Acid: Strength loss in H2SO4 below acid dew point. NOMEX® META-ARAMID DATA META-ARAMID (HM) BARE FIBER PERFORMANCE * Equilibrium moisture regain @ 55% RH ** Creep @ 40%-58% ultimate tensile strength *** Shrinkage in dry air @ 177 C for 30 minutes MOVING HIGH PERFORMANCE FIBERS FORWARD ABOUT FIBER-LINE® LOCATIONS Headquarters, R&D, Manufacturing FIBER-LINE® LLC 3050 Campus Drive Hatfield, PA 19440 +1 215.997.9181 fiber@fiber-line.com Manufacturing Operations FIBER-LINE® LLC 280 Performance Drive SE Hickory, NC 28602 +1 828.326.8700 fiber@fiber-line.com EMEA & Asia Pacific Operations FIBER-LINE® INTERNATIONAL B.V.

Abrasion Resistance Ultraviolet (UV) Resistance Flame Resistance Chemical Resistance (Acid Chemical Resistance (Alkali) Chemical Resistance (Organic Solvent) Strength Retention (H2O) O P P P P P P Property UOM Value Breaking Tenacity g/d 1.5 Specific Gravity Ratio 1.27 Elongation @ Break % 30.0 - 40.0 Tensile Modulus g/d 2.5 - 5.0 Moisture Regain* % 6.0 Creep** % N/A Shrinkage*** % < 0.1 Melt Point °C N/A Decomposition Temp. °C > 150 NOVOLOID NOVOLOID DATA Standard Modulus * Equilibrium moisture regain @ 55% RH ** Creep @ 40%-58% ultimate tensile strength *** Shrinkage in dry air @ 177 C for 30 minutes CHEMICAL COMPATIBILITY Chemical Resistance to Acid: Degrades in concentrated or hot Nitric and Sulfuric acid.

FIBER-LINE™ High Performance Synthetic Fibers PRODUCT SELECTION GUIDE FIBER-LINE™ HIGH PERFORMANCE SYNTHETIC FIBERS Kevlar® Para-Aramid Nomex® Meta-Aramid Vectran® LCP Zylon® PBO Carbon Fiber UHMWPE PET Polyester Fiberglass Novoloid Technora® Filament Yarn TECHNICAL PROPERTIES Standard Modulus High Modulus Standard Modulus Standard Modulus High Modulus Standard Modulus High Modulus Standard Modulus Standard Modulus High Modulus High Tenacity Low Shrink E-Glass S-Glass Standard Modulus Standard Modulus Breaking Tenacity (g/d) 23.0 23.6 5.0 23.0 30.0 42.0 42.0 23.0 28.0 38 9.3 8.4 6.0 - 7.3 6.7 - 9.4 1.5 28.0 Specific Gravity (Ratio) 1.44 1.44 1.38 1.40 1.40 1.54 1.56 1.80 0.97 0.97 1.38 1.38 2.58 2.48 1.27 1.39 Elongation at Break (%) 3.5 2.5 30.0 3.8 2.8 3.5 2.5 1.5 3.5 3.1 14.6 19.5 3.5 5.5 30.0 - 40.0 4.6 Tensile Modulus (g/d) 555 885 125 600 830 1200 1800 1480 850 1250 120 70 200–275 140–170 2.5–5.0 590 Equilibrium Moisture Regain at 55% RH (%) 5.0 5.0 4.5

Matrix Resin Fiber Reinforcement Fiber Content, by Weight (%) Epoxy E-CR or E-Glass >70% MATERIAL TECHNICAL DATA Property Test Procedure Rod Diameter 1.25 in (31.75 mm) 1.50 in (38.10 mm) Glass Transition Temp (Tg) ASTM 1356 100°C Minimum 100°C Minimum Water Absorption 24 hours at 50°C (122°F) ASTM D570 0.03% 0.03% Short Beam Strength (ILSS) ASTM 2344 8,400 psi (58 MPa) 9,200 psi (64 MPa) Transverse Shear Strength ASTM 7617 23,400 psi (160 MPa) 24,640 psi (170 MPa) Traceability Lot number shall be clearly marked on each package/shipment.

Page 2 of 4 https://abs.ez2xs.com https://abs.ez2xs.com A B S Q u al it y E va lu at io n s C er ti fic at io n E Avient Corporation - Cergy, France Design and Manufacture of Color and Additive Concentrates and Specialty Compounds , 14 Avenue de l'Eguillette Saint Ouen l'Aumône - 95310 France Avient Corporation - Esenyurt, Turkey Design and Manufacture of Specialty Engineered Thermoplastics Orhangazi Mah. 1683 Sok. Page 3 of 4 https://abs.ez2xs.com https://abs.ez2xs.com A B S Q u al it y E va lu at io n s C er ti fic at io n E Avient Corporation - Mountain Top, PA Manufacturing, Shipping and Receiving , 855 Oak Hill Road Mountain Top - PA 18707 United States Avient Corporation - Oricain (Pamplona), Spain Design and Manufacture of Color and Additive Concentrates and Specialty Compounds Pol. Central No. 200 50200 Toluca Mexico Avient Corporation - Tossiat, France Design and Manufacture of Color and Additive Concentrates and Specialty Compounds , 43 Place de la gare Tossiat - 01250 France Avient Corporation - Vic (Barcelona), Spain Design, development and production of color concentrates and additives for plastic and synthetic fibers Carretera de Vic a Olot,C-153, km 5 08500 Masies de Roda Spain Avient Corporation - Vonore Warehouse Warehouse , 225 Industrial Drive Vonore - TN 37885 United States Avient Corporation - Vonore, TN Manufacture of Colorants for Plastics , 245 Avecor Drive Vonore - TN 37885 United States Avient Corporation- Suwanee, GA Design and Sampling , 2900 Shawnee Industrial Way Suwanee - GA 30024 United States NEU Specialty Engineered Materials, LLC Compound and supply of thermoplastics for the medical device industry , 15 Corporate Drive North Haven - CT 06473 United States PolyOne Polymers India Pvt.

AVIENT CORPORATION T H I R D Q U A R T E R 2 0 2 3 R E S U L T S (NYSE: AVNT) N O V E M B E R 2 , 2 0 2 3 D I S C L A I M E R 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. Additionally, Adjusted EPS excludes the impact of special items and amortization expense associated with intangible assets. 2 O P E N I N G R E M A R K S B O B P A T T E R S O N C H A I R M A N , P R E S I D E N T A N D C E O Complementary technologies and customer relationships offer opportunity to advance commercial strategy Dyneema®, the world’s strongest fiber™, to accelerate growth of sustainable, ultralight and high performance applications AVIENT PROTECTIVE MATERIALS FIRST YEAR 4 Composites comprises over half of Specialty Engineered Materials, compared to 9% in 2016 Proven history of success in areas such as outdoor high performance, defense and sustainable solutions Composites 44% 56% 2023E Sales Collaboration & InnovationComposites as a % of SEM People & Culture Talented, passionate, and creative associates drive continued integration success and allow two cultures to come together as one Avient Lightweight Protective Laminates: PROJECTILE PROTECTION Dyneema® Fiber Solutions Cushioning + Fit + Comfort: LONG-TERM WEAR reSound™ Versaflex™ Thermoplastic Elastomers Strength + Durability + Light-Weighting: SOLID MOUNTING BRACKETS Nymax™ Bergamid™ Complēt™ Engineered Materials Durability + Lubricity: HELMET LATCHES Lubri-One™ Internally Lubricated Polymers Color Consistency and Weatherability CUSTOMIZED SPECIFICATIONS Avient Color and Additive Solutions Antennae Performance FAST, RELIABLE CONNECTIONS PREPERM™ Low-Loss Dielectric Thermoplastics AVIENT PROTECTIVE MATERIALS C R O S S S E L L I N G O P P O R T U N I T I E S Wired Connections CONSTANT COMMUNICATION Syncure™ Cross-linkable Wire & Cable Formulations5 6 AVIENT PROTECTIVE MATERIALS C R O S S S E L L I N G O P P O R T U N I T I E S 6 Q 3 P E R F O R M A N C E 15.4% 16.3% 2022 PF 2023 Results vs. GUIDANCE $800 $754 Guidance Actual $128 $123 Guidance Actual Sales Adjusted EBITDA (in millions) $0.56 $0.57 Guidance Actual Adjusted EPS (in millions) 9 • Demand impacted by destocking and cautious customer sentiment • Positive net price benefit: o CAI - Pricing flat and raw material deflation o SEM - Pricing flat with unfavorable mix related to healthcare, more than offset with raw material deflation • Cost reductions driven by Clariant synergies and reduced administrative costs Q3 EBITDA BRIDGE ($ millions) CAI: Price / Mix -) Deflation 22) SEM: Price / Mix (6) Deflation 13) Net Price Benefit 29) Cost Reductions 13) Wage Inflation (8) FX 1) Q3 2023 Actual $ 123) Adjusted EBITDA Q3 2022 Pro Forma $ 137) Demand (49) 10 2 0 2 3 G U I D A N C E Q4 2023 GUIDANCE VS.

The adhesion is categorized based on adhesive failure (A)- if no TPE residue is left on the substrate, or cohesive failure (C)- if the failure is in TPE. All products were dried as per the recommended conditions including the developed products which were dried in Desiccant oven at 70 C for 2 hr. Set 22hr. @ 70 C 88 85 86 85 85 91 73 Table 2: Adhesion data of developed products in pli units.

Name of topic C A R G O T R A I L E R M A N U FA C T U R E R T R A I L E R W A L L S & F L O O R • Replace metal sheet skin and framing on current trailer design • Reduce trailer weight and labor costs • Provide a reliable supply chain and quality control system • Provided an impact resistant and corrosion- proof composite material to prevent dents and rust • Reduced labor costs by delivering a customized three-layer composite with a polymer film to replace sheet metal and metal framing • Ensured supply chain reliability with fast delivery and quality control located in North America Polystrand™ APET Thermoplastic Composite Tri-ply Laminate KEY REQUIREMENTS WHY AVIENT?