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.

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:

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;and • 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 Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. For the same reasons, Avient is unable to address the probable significance of the unavailable information. 2 3 AVIENT OVERVIEW OUR VISION: Creating specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world 2023 Financial ResultsCompany Overview Revenue By: 9,300 Employees 102 Manufacturing Sites 20,000+ Customers Key Highlights  Premier formulator of specialized and sustainable materials solutions  Asset-light business model, with flexibility to adapt to customer needs  Best-in-class technology and service (140+ PhDs / 2,500+ patents)  History of transformation through successful M&A while consistently returning cash to shareholders  Poised for continued future growth in excess of GDP $3.14B Revenue $2.36 Adjusted EPS $502M Adjusted EBITDA 16.0% Adjusted EBITDA Margins $186M Adjusted Free Cash Flow Over $1B in share buybacks since 2011 Raised dividend for 13 consecutive years, a 15% CAGR since 2011 U.S. & Canada EMEA Asia Latin America 64% 36% Specialty Engineered Materials Color Additives and Inks 41% 36% 18% 5% 7% 7% 23% 19% 9% 16% 10% 5% 4% Defense Healthcare Packaging Consumer Building & Construction Industrial Transportation Energy Telecom Geography Segment Industry 4 CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 1. 6% annualized long term sales growth leveraging sustainable solutions, composites, healthcare and emerging regions 2.

High Strength, Customized Solutions Browse and download our literature to learn more about Avient solutions and services. Product/Service Overview

Versatile colorants in single-pigment or custom multi-pigment options. Browse and download our literature to learn more about Avient solutions and services. Product/Service Overview

Customer destocking was also less impactful during the quarter." Conference call participants in the question and answer session should pre-register using the link at avient.com/investors, or here, to receive the dial-in numbers and personal PIN. 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.

POMMERLOCH, Luxembourg – March 21, 2024 – Avient Corporation, a premier provider of specialized and sustainable materials solutions and services, today announced the introduction of new Gravi-Tech™ Density Modified Formulation grades with low shrinkage, offering luxury packaging customers an alternative to acrylonitrile butadiene styrene (ABS) based materials.   To enable customers to use their existing ABS molds, Avient has developed new PP-based grades with comparable shrinkage to traditionally used ABS materials. To support customer needs, manufacturing of these grades may be translated to other Avient sites in North America and Asia.  

Glasforms™ pultruded and filament wound continuous glass and carbon fiber rods, tubes, and custom profiles PolyOne Corporation, with 2017 revenues of $3.2 billion, is a premier provider of specialized polymer materials, services and solutions. The company is dedicated to serving customers in diverse industries around the globe by creating value through collaboration, innovation and an unwavering commitment to excellence.

Rich is a proven performer, who will lead DSS with a results-oriented approach that will deliver improved innovation, service, quality, and value to our customers.” The innovative technologies and services offered within DSS are exceptional, and the potential for collaboration and increased customer value through the broader PolyOne portfolio is limitless.” McAlindon, who is leaving the company after five years of dedicated service.

Standard and Custom Availability Custom or standard colors with quick turnaround Product/Service Overview