CLEVELAND – September 25, 2018 – PolyOne recently collaborated with Rapid Oxygen, a Stamford, CT-based company founded in 2013, on polymer selection for the development of its new emergency oxygen device called R15. PolyOne was instrumental in helping to streamline the development and production cycles through regulatory support, material expertise and selection, and supply chain solutions. The Rapid Oxygen Company (ROC) develops, designs, manufactures and sells portable oxygen generators for emergency use.

To aid customers in making that connection, our designers investigate global megatrends and perform deep and broad color research to develop palettes that resonate with evolving and longer-term societal trends.     Public Privacy: Without a doubt, we live in an age where technology often outpaces our ability to develop safeguards against hacking. Together with Color Inspiration 2018, designers and brand owners can work with InVisiO experts to develop new color palettes or even adapt existing colors to accommodate a new phase in a product’s lifecycle.

ElectriPlast Corp. is a leading technology innovator in conductive plastics with a broad intellectual property portfolio and deep application development expertise. Using our formulation expertise, we plan to develop ElectriPlast materials tailored for housings and other shielding applications, working in tandem with our customers and the application development experts at Integral Technologies." Integral Technologies Inc. and wholly owned subsidiary ElectriPlast Corp, engage in the discovery, development, and commercialization of electrically conductive plastics used in the production of industrial, commercial and consumer products.

The award recognizes PolyOne’s work in designing and developing the USee™ self-refraction device for Global Vision 2020, a nonprofit organization founded by the device inventor J. Unlike vision care in the developed world, the USee enables those with blurred vision to dial in their best optical acuity while viewing an eye chart, thus determining their correct prescription. VIDEO NOTE: For a video detailing this project, click here: A Pioneering Vision Correction Solution for the Developing World

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; • our ability to service our indebtedness and restrictions on our current and future operations due to our indebtedness; • 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; • 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, tariffs, and any recessionary conditions; and • other factors described in our Annual Report on Form 10-K under Item 1A, “Risk Factors.” All Rights Reserved 2025 4 Key messages Avient is evolving to its next phase as an innovator of materials solutions to help our customers succeed, while enabling a sustainable world Our primary focus is on organic revenue growth and margin expansion ► intersect secular trends and high growth markets with our technologies ► build businesses in high growthcatalyze growth in our core markets ► hybridization Our strategy is enabled and driven by our focus on (a) portfolio prioritization, (b) amplifying innovation, (c) digital for operational excellence and growth, and (d) leadership, talent and culture for the Avient of the future 5Copyright © . All Rights Reserved 2025 9 Strategic approach to drive sustainable growth GROWING AT GROWING AT 1 Core grows above macro driven by share wins and faster business development in prioritized portfolios (growth vectors) CATALYZE THE CORE 2 Portfolios in high growth markets grow faster than core – building sizeable businesses of scale rapidly BUILD NEW PLATFORMS OF SCALE ► Prioritizing ► differently ► Creating “space” ► focused front-end and back-end structures Avient sales growth Copyright © .

Colorant Chromatics™ Metallic Sulfone Pre-colored Colorants are developed for ultra-high heat and high-performance applications requiring a brilliant metallic finish. Developed for ultra-high heat applications Polyetherimide colorants that boost color consistency and streamline your product development

These silicone paste colorants are single-pigment or custom-made dispersions using a silicone carrier developed for liquid silicone rubber (LSR) injection molding applications. Formulations can be developed for indoor or outdoor light-fastness, chemical resistance, heat stability, ease of dispersion, and heavy-metal replacement. Select one of our standard colors, or speak to our team of formulation experts to develop a custom color for your product.

The new facility enables collaborative innovation, accelerates application development and increases speed-to-market for customers in the Asia Pacific region. The state-of-the-art facility is strategically located in a hi-tech industrial park in the JinQiao Development Zone in Shanghai. The new Innovation Center houses cutting-edge laboratory facilities, an interactive product display and a modern training facility, where customers can collaborate with PolyOne’s technical and marketing experts to accelerate development.

Each site has an active safety committee which is used as a mechanism to voice issues, communicate changes, prioritize activities, and investigate incidents and develop corrective actions. Training and Development Advancing Development of Treated Bed Nets for Malaria Control

Avient customers can work directly with ColorWorks teams in the early stages of product development to help shorten their time to market, control costs, and manage color consistently across the globe.   With the addition of our Mexico site, we will be more accessible to customers in the Mexico and Central America regions and as a result, offer more opportunities for onsite collaboration to help streamline product development,” said Allan Bojorge, General Manager, North LATAM at Avient.   As with all Avient ColorWorks facilities, the new location will offer Color, Material, and Finish (CMF) trend consultation, in-person or virtual color development, rapid prototyping, and more.