Product/Service Overview Learn how Avient helps customers use the power of polymer technology to make great products. reFlex 100 bio-derived plasticizer can help you reach new customers, improve productivity and grow your bottom line

Real Reality: As a growing number of consumers begin to opt out of technology, human interaction rises on the priority list. PolyOne Corporation (NYSE: POL), with 2018 revenues of $2.9 billion, is a premier provider of specialized polymer materials, services and solutions. The company adds value to global customers and improves sustainability through formulating materials, such as:

PARIS – May 18, 2022 – Avient Corporation, a premier provider of specialized and sustainable material solutions and services, today announced expansion of its line of bio-based Mevopur™ medical-grade polymer solutions. Documented change control beyond CAS number is practiced and Registered Drug Master File (DMF) / Device Master File (MAF) documentation is maintained.  Avient Corporation (NYSE: AVNT), with 2021 revenues of $4.8 billion, provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world.

KEY CHARACTERISTICS • Manufactured at four ISO 13485 certified manufacturing sites, providing global consistency and increased security of supply • Documented change control beyond CAS number, reducing risk of change • Non-phthalate and formulated without animal-derived substances • Available as concentrates or ready-to-use formulations in a wide range of polymers • Functionality and color can be combined in one product for convenience REGULATORY SUPPORT • Raw materials tested to: - ISO 10993-1 and USP biological evaluation - European Pharmacopeia 3.1.3/3.1.5 (polyolefin) - USP (polyethylene) - ICH Q3D elemental impurities • Registered Drug Master File (Type III) and/or Device Master File • Documentation support for approval or transition to comply with (new) regulations such as IVDR APPLICATION BULLETIN Healthcare use limitations apply—see below. Avient is committed to the needs of our healthcare customers. As part of our commitment, we publish Avient’s Mevopur™ product policy and use limitations to assist customers in their product selection.

Product/Service Overview Product/Service Overview Learn how Avient helps customers use the power of polymer technology to make great products.

Avient Extends Recycled TPE Portfolio with Grades Containing up to 60% Recycled Content, Supporting Global Customers  Material experts from Avient will be at booth 5106 in Hall B5 to meet with customers and discuss their material challenges. Avient Corporation provides specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world.

The technical services team at Avient worked closely with the European material engineering team at DENSO under the lead of Mr. Avient engineered a new customized formulation for the part, which provided both the processability required for extremely short cycle injection-compression molding, as well as including an additive to stabilize the material when in contact with copper. THE IMPACT Through a combination of its global footprint, expert technical services, and local production, Avient accepted DENSO’s challenge and responded with a new customized formulation that exceeded performance requirements, eliminated overmolding, and reduced cycle times.

We also offer compounds and special services such as custom color design or combination concentrates containing color and additive and pre-colored solutions. PRODUCT STEWARDSHIP At Avient we are focused on providing our customers with the highest levels of service and are dedicated to meeting their needs for regulatory support and global regulatory compliance. We continually monitor global regulations to stay current with the needs of our customers.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; • The effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • Disruptions or inefficiencies in our supply chain, logistics, or operations; • Changes in laws and regulations in jurisdictions where we conduct business, including with respect to plastics and climate change; • Fluctuations in raw material prices, quality and supply, and in energy prices and supply; • Demand for our products and services; • Production outages or material costs associated with scheduled or unscheduled maintenance programs; • Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; • Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • Information systems failures and cyberattacks; • Amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including the implementation of a cloud-based enterprise resource planning system, S/4HANA; • Other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation, geopolitical conflicts and any recessionary conditions; and • Other factors described in our Annual Report on Form 10-K for the year ended December 31, 2023 under Item 1A, “Risk Factors.” For the same reasons, Avient is unable to address the probable significance of the unavailable information. 3 AVIENT OVERVIEW 2023 Financial ResultsCompany Overview Revenue By: 9,300 Employees 102 Manufacturing Sites 20,000+ Customers  Innovating materials and processing solutions to solve our customers’ challenges while enabling a sustainable world  Broad portfolio of technologies with market leading positions and flexibility to anticipate and meet customer needs  Focus is on organic revenue growth and margin expansion, following our successful portfolio transformation $3.14B Revenue $2.36 Adjusted EPS $502M Adjusted EBITDA 16.0% Adjusted EBITDA Margins $186M Adjusted Free Cash Flow U.S. & Canada 64% Specialty Engineered Materials Color Additives and Inks 41% 23% 19% 10% 5% 4% Building & Energy Telecom Geography Segment Industry 2024 Financial Guidance $525 to $530 million Adjusted EBITDA $2.63 to $2.67 Adjusted EPS 4 Industry Sustainability Standards ESG Ratings Performance 1 4 87th 94th percentile Avient CDP Score: A- SUSTAINABILITY PERFORMANCE AND RECOGNITION O CTO BE R 3 1 , 2024 W EB CAS T P RE SE N TATI O N 6 Q3 2024 HIGHLIGHTS • 8.5% organic sales growth driven by broad-based growth across all regions and most end markets in both CAI and SEM segments • Growth stemmed from gaining share, winning new product specifications and restocking in certain end markets • Both segments expanded YoY EBITDA margins by 40 bps each • Adjusted EPS of $0.65, an increase of 14% vs the prior year • Successfully refinanced $650M outstanding senior notes due 2025; extending maturity to 2031 • Increased dividend 5% to $1.08 on an annualized basis; 14th consecutive increase Adj.

Product/Service Overview Product/Service Overview Customized Gravi-Tech™ formulation allowed electroplating to achieve weight, look and feel of metal