SURGICAL DEVICE MANUFACTURER H A N D L E H O U S I N G F O R L A P A R O S C O P I C S E A L E R • Excellent adhesion onto PC/ABS • Good aesthetics with soft touch • RoHS, REACH and FDA compliant • Enhanced ergonomics and functionality with improved soft grip • Met performance requirements for wear resistance and colorability • Customized a thermoplastic elastomer (TPE) solution and had with a faster sample response speed than competitor Versaflex™ Overmolding Formulation KEY REQUIREMENTS WHY AVIENT?

AUTOMOTIVE OEM C E N T R A L C O N S O L E P A R T • Metallic aspect • Good surface appearance • UV resistance • Cost effective alternative to paint • Offered a paint replacement solution with a molded-in-color metallic effect • Provided color matching expertise • Utilized simulation tools to predict part aspect and suggest the best injection point for process and mold optimization • Optimized formulation for metallic effects Smartbatch Combination Colorants & Additives KEY REQUIREMENTS WHY AVIENT?

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.

USES & APPLICATIONS Sorting and conveying equipment, such as: • Raw and processed food • Mined/quarried rock, ore, coal, sand • Pharmaceutical products • Powder • Forestry products • Agricultural products • Recycled materials Furniture, including indoor and outdoor seating Other applications requiring high cyclic fatigue resistance, repeatability and high performance including high temperature applications up to 300°F (149°C). TEMPERATURE, MPa Temperature (C) Fl ex ur al S tr en gt h (M Pa ) Fl ex ur al M od ul us (G Pa ) 20 25 30 35 40 Glass/Epoxy High Temp Glass/Vinyl ester 1409040-10-60 0 300 600 900 1200 1500 Glass/Epoxy High Temp Epoxy/Glass Glass/Vinyl Ester 1901409040-10-60 200 400 600 800 1000 1200 14801280108088068048028080 FLEXURAL MODULUS VS. Exposure to finishing operations: One time exposure to elevated temperatures of up to 400°F (204°C) for 15 to 20 minutes, typical for the application of coatings, have no effect on the performance of the composite springs.

主要特性 生产符合高于CAS编号级别的变更控制原则 （与MEVOPUR母粒类似），降低变更风险 不含动物源性物质和邻苯二甲酸盐 适用于吹膜、注塑、吹塑和挤出 • • • 注册药品主文件（III型） 食品接触符合FDA/EU*要求 法规支持 原材料根据以下法规测试：- ISO 10993-1 - USP第、章，包括VI级别，符合眼 科和鼻腔用药物要求 - 欧洲药典3.1.3/3.1.5（聚烯烃） - 美国药典（聚乙烯） - ICH Q3D 杂质元素 - USP和USP，透光率 • • • 载体材料 耐光性 热稳定性 产品代码颜料含量/类型 HDPE 50% TiO2 8 300°C PH00075525 LLDPE 60% TiO2 8 300°C PL00075542 LLDPE 70% TiO2 8 300°C PL00075545 PP 50% TiO2 8 300°C PP00075717 适用医疗保健使用限制—见下文。埃万特的产品不为以下目的或用途而设计，也不会宣传或预期用于以下目的或用途：(a) 被美国食品药品监督管理局（FDA）或国际标准化组织（ISO）归类为“植入”类器械的医疗器械；或美国药典（USP）或ISO标准定义的“永久”使用器械；或 (b) 经修订的欧盟指令90/385/EEC中定义的有源植入式医疗器械；或者 (c) 经修订的欧盟指令93/42/EEC中定义的“长期”使用的医疗器械。

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?

OFC TECHNOLOGY LEADER M I C R O B U N D L E S I N B L O W I N G A P P L I C A T I O N F O R R A I L W A Y S • Strippable with fingers for easy installation/access to fibers • High speed processing at a low wall thickness • Low shrinkage • Resistance to chemicals and filling compounds • Meet XP C93-850-1-1 standard • Re-designed cable to provide advantageous functional and economical value • Improved flexibility compared to PBT and PP tubes, allowing longer blowing distances on paths with angles of 90° • Increased processing speed and improved ease of installation • Provided better cable lifetime value compared to alternative solutions ECCOH™ 6151 UV SEPAP Formulation KEY REQUIREMENTS WHY AVIENT?

DEVICE MANUFACTURER M E D I C A L D E V I C E H O U S I N G • Improved chemical resistance compared to PC/ABS, PC/PET & COPE • Flame retardant (FR) rating of V-1 at 0.75 mm • Zero BPA & non-halogenated FR material • Available in standard hospital grade pre-colors • Provided a cost-effective material with superior chemical resistance to traditional materials • Formulated a medical-grade, semi-crystalline blend to support regulatory testing and approvals • Demonstrated superior property retention and crack resistance after exposure to hospital- grade disinfectants, including Virex® Tb, helping to extend the device life Trilliant™ HC8900 Thermoplastics KEY REQUIREMENTS WHY AVIENT?