Standard metallic shades include Brilliant Rose Gold, Brilliant Ice Blue, Brilliant Silver and Brilliant Gun Metal, but any hue can be achieved through customization.

Standard metallic shades include Brilliant Rose Gold, Brilliant Ice Blue, Brilliant Silver and Brilliant Gun Metal, but any hue can be achieved through customization.

 Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to:  Our ability to realize anticipated savings and operational benefits from the realignment of assets, including the planned closure of certain manufacturing facilities;  The timing of closings and shifts of production to new facilities related to asset realignments and any unforeseen loss of customers and/or disruptions of service or quality caused by such closings and/or production shifts;  Separation and severance amounts that differ from original estimates and amounts for non-cash charges related to asset write-offs and accelerated depreciation realignments of property, plant and equipment, that differ from original estimates;  Our ability to identify and evaluate acquisition targets and consummate acquisitions;  The ability to successfully integrate acquired companies into our operations, retain the management teams of acquired companies and retain relationships with customers of acquired companies including, without limitation, Spartech Corporation and Accella Performance Materials;  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 financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability;  The speed and extent of an economic recovery, including the recovery of the housing market;  Our ability to achieve new business gains; the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks;  Changes in polymer consumption growth rates and laws and regulations regarding the disposal of plastic materials in jurisdictions where we conduct business;  Changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online in the industries in which we participate;  Fluctuations in raw material prices, quality and supply and in energy prices and supply;  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;  An inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions and employee productivity goals;  An inability to raise or sustain prices for products or services;  An inability to maintain appropriate relations with unions and employees;  Our ability to continue to pay regular quarterly cash dividends and the amounts and timing of any future dividends;  The amount and timing of repurchases of our common shares, if any;  Other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation  The above list of factors is not exhaustive S&P 500 PolyOne Corporation Page 14 Well Positioned for Accelerated Growth $40 billion of market potential • Megatrends favor our solutions $1.9 billion of opportunities in our specialty innovation pipeline • Increased $200m from a year ago 44% of Specialty products introduced in the last 5 years World class leadership team drives next phase of specialty transformation: From Gold to Platinum PolyOne Corporation Page 15 Global Color, Additives & Inks John V. Garratt President, Performance Products and Solutions PolyOne Corporation Page 48 2014 Revenue by Industry Segment 2014 Revenues: $0.8 Billion At a Glance Performance Products & Solutions United States 80% Canada 14% Asia 2% Latin America 4% Appliances 8% Building & Construction 33% Consumer 5% Electrical & Electronics 3% Healthcare 1% Industrial 11% Packaging 5% Transportation 18% Wire & Cable 16% PolyOne Corporation Page 49 What We Have Delivered 4.3% 6.3% 7.2% 7.7% 2011 2012 2013 2014 Operating Margin $28 $39 $56 $63 2011 2012 2013 2014 Operating Income ($M) • Relentless focus on portfolio mix optimization • Lean Six Sigma drives operational excellence • Innovating in new markets such as healthcare • Expanding presence in Mexico and China Performance Products & Solutions PolyOne Corporation Page 50 $96 $109 2006* 2014 To Value Gross Margin ($ in millions) +13% 1,431 1,124 2006* 2014 From Volume… (lbs in millions) -21% Performance Products & Solutions *2006 = Near peak housing PolyOne Corporation Page 51 Accelerating Growth Market Growth/ Megatrends Innovation Collaboration Geographic Expansion Performance Products & Solutions PolyOne Corporation Page 52 Who We Are Growing With Performance Products & Solutions http://www.google.com/url?

Chemically resistant replacement for FR PC/ABS, FR PC/PET & FR COPE providing UL 94 Yellow Card V-0 flame rating at 1.5 mm, V-1 at 0.75 mm thicknesses for a broad color spectrum Explore What's Possible Explore What's Possible

This follows Avient’s recent Gold Rating certification achievement from EcoVadis, a globally renowned sustainability ratings platform, for its commitment to sustainability, ethics, and responsible business practices.

Complete assessments requested by Avient upon partnership and continuously improve ESG performance and rating. Responsibly source Tantalum, Tin, Tungsten and Gold or their derivatives (3TG metals).

Complete assessments requested by Avient upon partnership and continuously improve ESG performance and rating. Responsibly source Tantalum, Tin, Tungsten and Gold or their derivatives (3TG metals).

RTF Template Place and date: For the issuing office: Shanghai, 19 March, 2021 DNV GL - Business Assurance Suite A, Building 9, No.1591 Hongqiao Road, Changning District, Shanghai 200336, P.R. TEL:+31(0)102922689. www.dnvgl.com/assurance Certificate No: 1614-2000-AE-RGC-RvA Initial certification date: 23 May, 2000 Valid: 23 May, 2021 – 23 May, 2024 This is to certify that the management system of PolyOne-Shanghai, China No. 88, Guo Shou Jing Road, Z.

Avient 2024 Investor Day What We Do

Governance and Corporate Responsibility Charter Proposed Revisions March 2025 Final and Approved.pdf AVIENT CORPORATION GOVERNANCE AND CORPORATE RESPONSIBILITY COMMITTEE CHARTER Membership The Governance and Corporate Responsibility Committee (the “Committee”) of the Board of Directors (the “Board”) of Avient Corporation (the “Company”) will consist entirely of directors who meet the definition of “independent” as set forth in the Corporate Governance Standards of the New York Stock Exchange. March 14, 2025