Avient engineered materials that combined the heat transfer and cooling capabilities of metals with the design freedom, weight reduction and cost advantages of conventional thermoplastics. By replacing metal with engineered thermal composites, Kruunutekniikka has been able to drive growth in the emerging solid-state LED lighting market with a solution that is innovative, sought after, cost effective and consistent with the company’s ongoing effort to facilitate sustainable practices. To learn more about the benefits of custom engineered thermoplastics, contact an expert at Avient today!

Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility Continuing operations Continuing operations

FX -11% FX -3% Total Avient -14% YoY Comparison against 2022 pro forma results • Aging infrastructure driving need for greater technological advancements and upgrades • Increased focus on strength and capacity of electrical grid plays into further adoption of composites into the market Where Avient Wins:  UV, weather-resistance, customized capabilities  Best-in-class customer responsiveness  Local high-quality manufacturing, unparalleled breadth of portfolio  Expanding position in insulators, utility poles, crossarms, and wind energy Avient Confidential 11 ENERGY 11 • Fiber-optic investments from AT&T, Corning, Commscope continue to drive industry toward innovation • $42B BEAD program in Infrastructure Bill to increase cable deployments; well-positioned to capitalize on “Made in America” requirement and “last mile” buildout Where Avient Wins:  Flame retardance, weather-resistance enables faster, safer, more reliable connections  Local manufacturing, unparalleled breadth of portfolio  Expanding position in insulation for wire jacketing, 5G buildout TELECOMMUNICATIONS Source: U.S. Avient 2011 and 2018 valuations reflect trailing 12 months EBITDA at December 31 of the respective years. 33 EV / 2023E EBITDA Historic Multiple 6.5 8.3 9.9 14.6 13.7 13.0 11.9 8.8 18.7 17.4 11.8 10.0 9.7 9.1 8.0 7.9 A vi en t (2 01 1) A vi en t (2 01 8) A vi en t (2 02 3) K W R P P G R P M A V Y F U L E C L H X L F M C A S H S C L C E E M N H U N Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results. We also monitor earnings (defined as net income from continuing operations) before interest, taxes, depreciation and amortization (EBITDA) and adjusted EBITDA (EBITDA before the impact of special items) as a supplement to our GAAP measures.

SHANGHAI – March 11, 2024 – Avient Corporation, a premier provider of specialized and sustainable materials solutions and services, is proud to introduce its new Versaflex™ TF Adhesive Thermoplastic Elastomer (TPE) solutions for adhesive films in laminations with nylon and polyester textile fabrics. Dyneema®, the world’s strongest fiber™, enables unmatched levels of performance and protection for end-use applications, including marine and sustainable infrastructure and outdoor sports    Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility  

CLEVELAND – July 10, 2023 – Today, Avient Corporation announced the availability of its newest bio-derived healthcare solution, Versaflex™ HC BIO thermoplastic elastomer (TPE). Dyneema®, the world’s strongest fiber™, enables unmatched levels of performance and protection for end-use applications, including ballistic personal protection, marine and sustainable infrastructure and outdoor sports   Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility     

CLEVELAND – July 19, 2023 – Today, Avient Corporation announces the addition of two reSound™ REC Recycled Content Thermoplastic Elastomers (TPEs). Dyneema®, the world’s strongest fiber™, enables unmatched levels of performance and protection for end-use applications, including marine and sustainable infrastructure and outdoor sports   Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility  

Thermoplastic Elastomers for Overmolding Applications The growth of the thermoplastic elastomers continues over the last three decades and the projections are very optimistic3. As an example, in order to bond to engineering thermoplastic, the continuous phase in a TPV has to be modified significantly. Polypropylene which is normally the continuous phase in a TPV does not lend itself for functional modifications needed to meet the adhesion requirements for a wide variety of engineering thermoplastics that are being used in the consumer market.

Suitable for aerospace applications such as optical fiber or data transmission cables Smarter Materials™ High Performance Thermoplastics: eBook Learn about high-performance thermoplastics that surpass commodity and engineering resins

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 do so though our investments and focus on sustainable solutions for high-growth markets, including healthcare, consumer, packaging and composites/5G.

This includes the launch of OnFlex™ LO thermoplastic elastomers (TPEs), featuring reduced levels of volatile organic compounds (VOCs) for vehicle interiors, and the availability of its IQ Design Labs service in Europe. PolyOne continues to introduce new polymer solutions and design services to help our customers innovate,” explained Holger Kronimus, vice president and general manager, Specialty Engineered Materials, Europe, at PolyOne.