A LIFE SCIENCE COMPANY S E R U M C O L L E C T I O N C A R T R I D G E • Excellent clarity • Good bonding and peel strength onto PP • Heat resistance • Meet sterilization needs • Easy processing • Formulated transparent Shore 50A TPE with excellent adhesion onto PP and good sealing performance • Met regulatory requirements for USP Class VI and ISO 10993-4,5 • Provided a short lead time and on-site technical service Versaflex™ CL Thermoplastic Elastomers KEY REQUIREMENTS WHY AVIENT?

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?

ORTHOPEDIC PARTS MANUFACTURER O R T H O P E D I C S O L E I N S E R T • A super soft TPE (

LEADING GARDEN TOOLS BRAND O S C I L L A T I N G S P R I N K L E R S • Superior abrasion resistance performance • Ability to pass standard UV testing as well as the customer’s more stringent UV criteria • Global support and material availability • Developed a customized TPE material with superior UV resistance, adhesion to ABS, and demolding • Leveraged in-house UV chamber tests to exceed UV parameter requirements • Worked closely with customer’s product development, engineering and quality teams to test and specify material • Supplied grade globally with local technical and manufacturing support OnFlex™ S KE Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?

SBD cordless power tool GLOBAL CLOUD SERVICE PROVIDER I N T E R N A L H O L D O F S E R V E R C A B I N E T S • PC-based solution with good impact strength • UL 94 V-0 certification • Dimensionally stable • Offered a 40% glass fiber-reinforced PC solution with high modulus and high impact strength • Achieved a UL 94 V-0 flammability rating at 3.0 mm • Provided pre-colored formulation that met specific white requirements and maintained good color stability even after long-term production at high temperatures • Ensured high flowability so the material could be injected with low pressure, avoiding damage to the metal frame Edgetek Engineered Polymer Formulations KEY REQUIREMENTS WHY AVIENT?

AUTOMOTIVE OEM I N T E R I O R D O O R P A N E L • Available for multiple resins and approved OEM colors • Maintain performance characteristics of traditional raw materials that use conventional carbon black • Pass REACH and RoHS requirements • Retain color consistency and stability • Provide a Product Carbon Footprint (PCF) calculation that aligns with ISO 14067:2018 • Provided recycled content formulations that met all design and engineering goals while achieving sustainability targets • Provided effective alternative to materials using virgin carbon black • Achieved color stability under xenon arc and TUV methodology • Supplied necessary PCF calculation certified by TÜV Rheinland and aligning with ISO 14067 requirements OnColor™ REC Polymer Colorants KEY REQUIREMENTS WHY AVIENT?

Entry door 1-page case study EXTERIOR DOORS R E S I D E N T I A L & C O M M E R C I A L Reinforcement of steel to reduce weight and provide: • Corrosion resistance • Improved dent resistance to withstand windborne debris • Structural performance to meet regional wind load requirements • Improved resistance to corrosion and moisture degradation • Increased dent resistance up to 60% vs. unreinforced metal • Enabled reduction in thickness of sheet metal while maintaining structural performance Polystrand™ PETG continuous fiber reinforced composite laminate thermally bonded to steel door skin KEY REQUIREMENTS WHY AVIENT?

Trilliant HC - OCD Microwells IVD Testing - Application Snapshot ORTHO CLINICAL DIAGNOSTICS M I C R O W E L L S F O R I V D D E V I C E • PS-based material • Strict TiO2 content/filling to secure accurate performance • Material to be suitable and complaint with the IVDD/IVDR standards • Surface chemical performance essential for the application • Worked in close collaboration with customer and internal teams to fully understand and overcome current material challenges • Identified anomalies in existing formulation using material science expertise and customized an alternative formulation • Enabled customer to improve processing efficiency, reduce scrap rate and respond to the increased market demand Trilliant™ HC7410-5001 X4 thermoplastics in white KEY REQUIREMENTS WHY AVIENT?

LEADING WASTE MANAGEMENT OEM I N D U S T R I A L C O N T A I N E R S • Eliminate shrinkage and warpage, and control dimensional aspects of finished parts • Improve quality assurance metrics and reduce downtime associated with quality rejections • Reduce process parameter changes and maintain consistency when running multiple colors • Lightweighting solution offering energy savings, process optimization & extended manufacturing run times • Preserved industrial waste container quality while maintaining functional performance and application dimensional stability • Provided xpertise in process optimization and polymer formulation, where material & mold flow, reducing cycle times, and color harmony between diverse polymers matter most • Accelerated speed to market by several weeks with versatile agnostic product forms (solid and liquid) coupled with technical service Hydrocerol™ and Excelite™ Chemical Foaming Agents (CFA) KEY REQUIREMENTS WHY AVIENT?

Microsoft PowerPoint - AVNT Q2 2021 Earnings Presentation - Website AVIENT CORPORATION S E C O N D Q U A R T E R 2 0 2 1 R E S U LT S (NYSE: AVNT) J U LY 3 0 , 2 0 2 1 DISCLAIMER 2 Forward-Looking Statements In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Free cash flow conversion calculated as (EBITDA – Capex) / EBITDA Median: 81% Median: 78% HIGH FREE CASH FLOW CONVERSION Avient reflects 2021 estimated EBITDA of $580M and excludes one-time synergy capture CAPEX ($20M) Source: Peer data per Bloomberg market data as of July 28, 2021 87 90 86 82 80 78 73 87 82 82 79 79 78 78 77 76 71 67 46 A vi en 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 IF F A S H E C L B N R E M N H X L H U N K R A S C L A L B (6) Source: Peer data per Bloomberg market data as of July 28, 2021 Total Enterprise Value / 2021E EBITDA Our current valuation with updated guidance implies an EBITDA multiple that is below specialty formulator peers and the median of other selected chemical / specialty companies. With the Clariant Masterbatch acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets, with increased geographic diversification and a more specialized portfolio that can significantly expand EBITDA margins. 25 Avient reflects 2021 estimated EBITDA of $580M OUR VALUATION VERSUS PEERS Avient Specialty Formulators Other Chemical/Specialty Companies 9.5 18.5 15.1 15.1 14.0 11.0 10.4 29.5 28.2 23.9 18.7 12.4 12.2 11.1 9.3 9.2 9.2 7.6 7.6 6.0 A vi en t K W R P P G A V Y R P M F U L G C P A L B H X L E C L IF F F M C B N R A S H S C L E M N U N V R K R A C E H U N Median: 11.1xMedian: 14.6x SUMMARY: WHY INVEST IN AVIENT?