TIER 2 SUPPLIER I N T E R I O R T R A Y S • A low FOG material with low odor • Low gloss finish • Easy processability • Enabled easier processing than the incumbent TPE-v • Eliminated pre-drying step and delivered pre-colored material, improving process efficiencies • Met needs for low fogging (≤2 mg) and low odor (≤3.0) with low gloss finish OnFlex™ S EH 80A-3S7005 Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?

ENERGY STORAGE OEM A Q U E O U S B A T T E R Y G A S K E T • Sealing performance from -40 to 110°F • Ability to flow in a long, thin seal design • Chemical resistance to a proprietary electrolyte solution • Natural color • Provided a chemically resistant TPE that outperformed competitive TPE and thermoplastic rubber in rigorous customer testing • Offered material expertise and education to empower an informed material decision • Enabled OEM to model and evaluate sealing performance via design support and data files • Met global production needs through material consistency and local technical support Dynaflex™ Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?

H Y D RO P O N I C G ROW I N G S YS T E M B R A N D F L E X I B L E N E C K F O R L A M P • High flow performance capabilities • Beautiful finish • Soft touch • Supported the development process, from initial design to product launch, to meet the needs of both the molder and OEM • Delivered a TPE solution that enabled a 22” flow line with a wall thickness of 0.225” • Provided technical support and shared process best practices to minimize cosmetic defects Versalloy™ XL Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?

FABRIC MASK MANUFACTURER P P N O N W O V E N M U L T I L A Y E R S • Meet regulatory requirements for the application • Provide technical support including specific color, processing and molding recommendations • Deliver a highly hydrophilic performance • Developed a compliant additives solution to meet necessary regulatory specifications • Provided technical expertise throughout the design and manufacturing process • Offered an effective solution to make it soft touch while hydrophilic Cesa Fiber Additives KEY REQUIREMENTS WHY AVIENT?

Avient corporation first quarter 2023 results AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) J A N U A R Y 2 0 2 4 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. Continue fostering our Great Place to Work® culture Strategic Objectives Long Term Growth Rates Growth Drivers $340 $455 $790 $1,120 2016 2018 2020 2023E $51 $84 $212 $650 2016 2018 2020 2023E $108 $113 $231 $230 2016 2018 2020 2023E $265 $358 $726 $730 2016 2018 2020 2023E 8-12% 8-10% 8-10% 5% Sustainable Solutions Composites Healthcare Asia/Emerging Regions Profitable Growth Great Place to Work 5.4% 10.9% 16.0% 2006 2014 2023E EBITDA Margins $0.14 $1.93 $2.30 2006 2014 2023E Adjusted EPS TOP -T IE R S US TAINABIL IT Y P E RF ORM ANCE AND RE COGNIT ION Industry Sustainability Standards ESG Ratings Performance 1 3 5 87th 94th percentile 5 Innovation is the lifeblood of a specialty company. Avient reflects 2023 adjusted EBITDA guidance of $500M and estimated run-rate CAPEX of $110M. 2023E (%) 27 78 89 83 80 78 74 86 79 76 67 66 55 50 (39) A vi en t K W R FU L P P G A V Y R P M FM C C E E C L A S H H X L H U N E M N S C L Avient Specialty Formulators Other Specialty / Chemical Companies MULTIPLE EXPANSION Source: Peer data per Bloomberg as of December 29, 2023 Note: Avient reflects 2023 adjusted EBITDA guidance of $500M and closing share price of $41.57.

Chúng ta cũng phải chấp nhận ý kiến từ những người khác theo cách tương tự. Đảm bảo an toàn cho mọi người đòi hỏi phải có ý thức liên tục và chú ý đến chi tiết. Xác nhận Tuân thủ: Tôi đã đọc, hiểu và đồng ý tuân thủ Bộ Quy tắc Ứng xử của Avient.

Purchase price multiple rapidly declining on strength of business and synergy capture (1) (1) (1) Financial information is pro forma to include a full year of Clariant Color acquisition ($ in millions) 11.9% 16.3% 2019PF 2021E EBITDA Margins (1) Avient Corporation 12 People C U L T U R E I S E V E R Y T H I N G Avient Corporation 13 Community Service 7x Safer than Industry Average World-Class Safety Leadership Development Over $16 million raised since 2010 Diversity & Inclusion Future Growth in Excess of GDP is Driven By: Our company is positioned to sustainably grow at a rate that exceeds GDP. Develop and implement solutions to end plastic waste while supporting AEPW $1.5B investment in key initiatives. 2030 Sustainability Targets 27Avient Corporation Sustainalytics 2021 ESG Risk Ranking RANK (1st = lowest risk) PERCENTILE (1st – lowest risk) Chemicals INDUSTRY 75/449 17th Specialty Chemicals SUBINDUSTRY 21/124 17th ISS November 2021 ESG Scores SCORE (1 = Best, 10 = Worst) Environmental 2 Social 1 Governance 4 28Avient Corporation Avient ESG Ratings Products 8 W A Y S W E H E L P C U S T O M E R S B E M O R E S U S T A I N A B L E 29Avient Corporation Enabling Customers’ Recycling Goals R E S O U N D ™ R R E C Y C L E D - C O N T E N T T P E 62% recycle content High performance and quality Reduce waste with refillable features 30Avient Corporation Lightweighting Commercial Trucks P O L Y S T R A N D ™ T H E R M O P L A S T I C C O M P O S I T E L A M I N A T E S 60% Weight reduction in box truck panels Improve fuel economy 100% recyclable 31Avient Corporation 75% less water Enabling Customers to Conserve Resources, Reduce Waste R E N O L ™ S P I N D Y E C O L O R I N G M E T H O D 30% less energy 25% lower carbon footprint 32Avient Corporation Sustainability for a Better Tomorrow *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business Revenue From Sustainable Solutions* 2016-2021 2016 2017 2018 2019 2020PF** 2021E $405M $455M $340M $550M $790M $930M $270 215 170 90 90 30 45 20 $930M2021E Sales ($ in millions) Avient Corporation 33 The Challenge and the Opportunity Avient Corporation 34 Plastic is Part of the Solution PLASTIC ALTERNATIVE PACKAGING (GLASS & ALUMINUM) Requires… Avient Corporation 35 Source: Franklin Associates, A Division of Eastern Research Group (ERG) 2x more Energy 6x more Water 5x more Weight 2x more Greenhouse gas emissions Brand Owners Goals: Substantially Increase use of Recycled Materials 1 1 2 3 5 7 7 7 9 10 30 40 14 25 13 22 35 9 19 13 18 41 Current Additional share needed to reach 2025 target Brand Owner 1 Brand Owner 3 Brand Owner 2 Brand Owner 7 Brand Owner 4 Brand Owner 10 Brand Owner 6 Brand Owner 11 Brand Owner 5 Brand Owner 8 Brand Owner 9 Brand Owner 12 Brand Owner 13 Percent recycled plastic used: (examples and not exhaustive) (1) (1) Latest year reported. Avient is High Touch Avient Corporation 130 86 93 85 82 79 77 74 89 85 82 81 79 78 77 74 72 25 A vi e n t K W R P P G A V Y F U L R P M G C P F M C U N V R C E B N R H X L E C L E M N H U N A S H S C L 2021E (%) 1.

S E M I C O N D U C TO R PAC K A G IN G O E M S P E C I A L T Y , S T A T I C D I S S I P A T I V E P A C K A G I N G • Provide protection against electrostatic discharge (ESD) and environmental variations • Ensure highly specialized, clean manufacturing conditions • Deliver stringent quality control of ionic and metal contamination • Maintain availability of raw materials across a global supply chain • Ability to translate production globally • Protected critical electronics from ESD while providing an environmental barrier • Adhered to strict quality and cleanliness controls from raw material handling through production to help maintain high-purity standards, such as ultra-clean feeders, deionized water, and specific HVAC systems, supporting quality initiatives, including PCS reviews, eCoA, and HA assessments • Exceeded customer expectations for controlling ionic and metal contamination down to parts per billion (PPB) • Offered global capabilities with local support and material supply to meet growing semiconductor industry needs Stat-Tech Static Dissipative Formulations KEY REQUIREMENTS WHY AVIENT?

BOS B A T T E R Y S F R A M E • Recycled materials where possible • Non-halogen flame retardant performance to V0 rating • BOS company color RAL9004 (on visible parts) • Thermal performance for some parts • High strength at low thickness for load-bearing parts • Provided multiple polymer solutions for the battery frame including recycled nylon, thermoplastic elastomers and thermally conductive formulations • Utilized recycled nylon with up to 35% glass fiber content to provide high strength for load-bearing parts at a low thickness to minimize weight • Enabled customer to launch a new innovative battery system with a modular design for use in multiple applications – maximizing the working life of the battery Nymax™ REC Recycled Nylon Formulations and Therma-Tech™ Thermally Conductive Formulations KEY REQUIREMENTS WHY AVIENT?

© 2019, All Right Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 B U I L D I N G A N D C O N S T R U C T I O N S U P P L I E R H E A T E X C H A N G E R : G A S R E C O V E R Y • Resistance to corrosion and fouling • Good thermal conductivity • Good pressure resistance • Compatible with current processing methods – extrusion • Eliminated the effects of corrosion and fouling by replacing aluminum • Improved thermal performance over time • Developed a customized solution that utilized the customers existing extrusion processing methods Therma-Tech™ Thermally Conductive Formulation KEY REQUIREMENTS WHY AVIENT?