Composition of the Board, director responsibilities, access to management and independent advisors, director compensation, and director orientation and continuing education Avient's commitment to continuous improvement and operational excellence

As we continue to embrace the dichotomy of land and sea, the sheer fragility of the earth is expressed in this relationship, like a wave washing away a castle in the sand. The continued success of these hues exemplifies the desire for clean, straightforward color. Incorporating translucency allows the lines and layers of an object’s composition to shine through.

Hygiene fiber manufacturer HYGIENE FIBER MANUFACTURER P P N O N W O V E N M U L T I L A Y E R S • Meet FDA requirements specified by the customer • Provide technical support including specific color, processing and molding recommendations • Deliver the brighter white colorants to make the final product look whiter and cleaner • Developed an FDA colorant to meet customer regulatory specifications • Provided technical expertise throughout the design and manufacturing process • Offered a brighter white color for the final product Remafin Fiber Colorants for PP KEY REQUIREMENTS WHY AVIENT? https://www.avient.com/products/polymer-colorants/fiber-colorants/remafin-fiber-colorants Slide 1: Hygiene fiber manufacturer

COLORANT CHROMATICS HIGH-TEMPERATURE POLYMER FORMULATIONS PRODUCT SELECTION GUIDE COLORANT CHROMATICS HIGH TEMPERATURE COMPOUNDS PROPERTY ISO Test Method Units PES PPSU PEI LCP PEEK PSU PHYSICAL Density 1183 — 1.37 1.29 1.27 1.40 1.30 1.24 Mold Shrinkage Flow/X-flow 294–4 % 0.8/0.85 0.7/XX 0.6/0.7 0/0.7 1.0/1.3 0.7 MECHANICAL Tensile Strength 527 Mpa 85 70 85 200 100 70 Tensile Elongation Yield 527 % 7 7.5 6 — — 6 Tensile Elongation Break 527 % >25 >60 60 3 30 >50 Izod Notched 180 kJ/m2 7 55 5 95 7 5.5 THERMAL HDT 1.8 MPa 75 °C 205 200 190 190 150 175 FLAMMABILITY Flame Rating UL-94 — V-0 V-0 V-0 V-0 V-0 HB ADDITIONAL Steam Sterilizable — Cycles 100 2000 2000 1500 1000 100 CUSTOM OPTIONS Color — — Yes Yes Yes Yes Yes Yes Reinforced — — Yes Yes Yes Yes Yes Yes Conductive — — Yes Yes Yes Yes Yes Yes Lubricated — — Yes Yes Yes No Yes Yes Radiopaque — — Yes Yes Yes No Yes Yes Trade Names — — Veradel Ultrason E Radel Ultrason P Ultem Vectra Zenite Xydar KetaSpire Victrex Vestakeep Udel Ultrason S Avient high temperature precolored and specialty compounds are your solutions for high performance products. Customized with high quality pigments and select fiber reinforcements, fillers and additives, these solutions are designed to meet the performance your application requires.

Colorant Chromatics™ Reinforced Formulations Fiber Colorants Renol™ Fiber Colorants

CARPET PRODUCER N Y L O N C A R P E T • Antimicrobial effectiveness for residential and hospital carpets • Suitable for Bulked Continuous Filament (BCF) processed polyamide (nylon) • Limited impact on color • Quick development to address growing market needs for hygienic surface coverings • Developed efficient antimicrobial solution adapted to BCF processing for high-quality yarns • Reduced risk of discoloration with a smartbatch alternative • Leveraged global capabilities to offer quick development, trials and production quantities • Cesa™ Fiber Additives – antimicrobial additives KEY REQUIREMENTS WHY AVIENT?

Examples include: • Barrier technologies that preserve the shelf-life and quality of food, beverages, medicine and other perishable goods through high- performance materials that require less plastic • Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation • Breakthrough technologies that minimize wastewater, improve the recyclability of materials and advance a circular economy • Composite solutions to support accelerated growth of 5G / fiber-optic infrastructure investment as the world demands greater and faster connectivity Avient employs approximately 8,400 associates and is certified ACC Responsible Care® and a founding member of the Alliance to End Plastic Waste. Operational Excellence Empowers us to respond to the voice of the customer with relentless continuous improvement. We will deliver for our stakeholders through multiple value creation levers—many of which are unique to Avient: o Demand for sustainable solutions, healthcare, and composites, together with Clariant Color revenue synergies, that will drive long-term revenue growth in excess of GDP o Clariant Color cost synergy capture will result in significant near-term benefit In addition, we remain committed to increasing annual dividends in line with earnings growth and opportunistically buying back shares, all while remaining modestly levered.

Microbial susceptibility of various polymers and evaluation of thermoplastic elastomers with antimicrobial additives R E S E A R CH AR T I C L E Microbial susceptibility of various polymers and evaluation of thermoplastic elastomers with antimicrobial additives Zachary Zander1 | Deirdre Newton2 | Heather Scaglione1 | Averie Reiber1 | Parminder Agarwal2 1Avient Corporation, Avon Lake, Ohio, USA 2Lonza LLC, Morristown, New Jersey, USA Correspondence Zachary Zander, Avient Corporation, 33587 Walker Road, Avon Lake, OH 44012, USA. Control samples (top row) are shown for comparison to samples post-incubation and washing (bottom row) TABLE 1 Summary of ASTM G21 results for initial susceptibility screening of untreated resins/compounds Fungal growth Resin/compound 4 = Heavy growth (61%– 100% coverage, fail) TPE, 6 formulations 3 = Moderate growth (31%–60% coverage, fail) Poly(urethane), 2 formulations 2 = Light growth (11%– 30% coverage, fail) Nylon-6,10, PBT, poly(amide) elastomer, ABS, 3 formulations, reinforced Nylon, 2 formulations 1 = Trace growth ( Clarity and yellowness remains an industry challenge for thermoplastics with bulk- imbedded antimicrobial additives.

The addition of the Dyneema portfolio will raise Avient’s material offerings to the highest levels on the performance spectrum of composites and engineered fibers.” The foundation of the protective materials business of DSM is the renowned technology and globally admired brand of Dyneema®, the World’s Strongest Fiber™. The non-GAAP financial measures include estimated 2022 Dyneema business and Composites Platform pro forma EBITDA.

Composites is a high-growth area where we’ve invested, such as in January when we purchased Fiber-Line, a global leader in customized engineered fibers and composite materials that serves the fiber optic cable, oil & gas, industrial and consumer industries. At PolyOne, we take action in many ways, including through community clean-up efforts as well as efficiency initiatives and continuous improvement in our operations. Based Participants Withholding No Right to Continued Employment Effective Date of the 2020 Plan Amendment and Termination of the 2020 Plan: New Plan Benefits U.S.