Avient enabled us to quickly meet our utility customers’ growing demand for improved, customized physical asset protection,” said Dave Lombardo, vice president and general manager, Service Division, Southern States LLC. Using GlasArmor panels, Ballisti-Wall® and Ballisti- Cover® solutions enable utility companies to add a superior level of protection to critical components and meet FERC security requirements within a modular, adaptable construction. 1 https://www.nbcnews.com/news/us-news/three-substations- attacked-washington-state-rcna63214 2 https://www.ferc.gov/sites/default/files/2020-04/E-4_10.pdf © 2023, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 To learn more about Avient’s advanced composite solutions, visit www.avient.com/composites. https://www.nbcnews.com/news/us-news/three-substations-attacked-washington-state-rcna63214 https://www.nbcnews.com/news/us-news/three-substations-attacked-washington-state-rcna63214 https://www.ferc.gov/sites/default/files/2020-04/E-4_10.pdf http://www.avient.com/composites

Polymer science, industry-leading expertise with colors and additives, and our in-house color design service make us a powerful collaborator during bottle design, manufacturing, and product marketing. Barrier solutions (Oxygen, Moisture) • UV absorbers • Light blockers • Drop impact performance • Anti-static performance 2 • Ease of evacuation • Scratch and mar resistance • Organoleptic protection • Flavor preservation INCREASE CONSUMER ENGAGEMENT Collaborate with our in-house color and design service. http://www.avient.com/content/product-selection-help-form

La ligne d’assistance est exploitée par une société externe qui propose ces services à de nombreuses entreprises. Garantir la sécurité de chacun exige une sensibilisation constante et un souci du détail. http://Avient.com/sustainability http://Avient.com/sustainability 25 Q : Mon superviseur m’a demandé de suivre une nouvelle procédure de mise au rebut des déchets, mais je ne suis pas certain qu’elle soit sans danger ni même légale.

NYSE: POL) today announced that the underwriters of its previously consummated public offering of 13,333,333 common shares have fully exercised their option to purchase an additional 2,000,000 common shares at the public offering price of is a premier provider of specialized polymer materials, services and solutions. masterbatch business and achieve the expected results of the acquisitions, including, without limitation, the acquisitions being accretive; 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; changes in polymer consumption growth rates and laws and regulations regarding plastics in jurisdictions where we conduct business; changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online; 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 raise or sustain prices for products or services; an inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to acquisition and integration, working capital reductions, costs reductions and employee productivity goals; information systems failures and cyberattacks; and 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.

Browse our library of product data sheets containing technical descriptions and details. Product/Service Overview Details on performance, processing and more

The company noted it will provide more details on its second quarter results and outlook during the webcast scheduled for Webcast Details The webcast can be viewed live at avient.com/investors, or by clicking here: https://edge.media-server.com/mmc/p/p4owuchb.

The company noted it will provide more details on its third quarter results and outlook during the webcast scheduled for Webcast Details Refer to Attachment 7 Reconciliation of Non-GAAP Financial Measures for details regarding adjustments to previously reported results to arrive to the pro forma financial metrics.

The Company noted it will provide more details on its 2021 outlook during the webcast scheduled for Webcast Details The webcast can be viewed live at avient.com/investors, or by clicking here: https://edge.media-server.com/mmc/p/eaivs28r.

Inside Information may include, but is not limited to, matters regarding a company’s business or financial condition, its strategic plans (including acquisitions or the sale of significant assets) or other important events that could affect the market price of the company’s securities. It is important that you document the details of a trading plan properly. The policy does apply, however, to any sale of stock as part of a broker-assisted cashless exercise of an option, or any other market sale for the purpose of generating the cash needed to pay the exercise price of an option.

PROPOSAL 3 — APPROVAL OF THE POLYONE CORPORATION 2020 EQUITY AND INCENTIVE COMPENSATION PLAN General Why We Recommend That You Vote for this Proposaly p Our Board recommends a vote FOR this Proposal to approve the PolyOne Corporation 2020 Equity and Incentive Compensation Plan. 2020 Plan Highlights g g Administration Reasonable 2020 Plan Limits Allowances for Conversion Awards and Assumed Plans Limited Share Recycling Provisions Minimum Vesting No Repricing Without Shareholder Approval Change of Control Definition Exercise or Base Price Limitation. Tax Consequences to the Company or its Subsidiaries Registration with the SECg EQUITY COMPENSATION PLAN INFORMATION AS OF DECEMBER 31, 2019 Number of securities to be issued upon exercise of outstanding options, warrants and rights Weighted-average exercise price of outstanding options, warrants and rights Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column (a)) PROPOSAL 4 — RATIFICATION OF APPOINTMENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Our Board recommends a vote FOR this Proposal to ratify the Audit Committee’s appointment of EY as our independent registered public accounting firm for 2020. Other Benefits. 2019 Grants of Plan-Based Awards Estimated Future Payouts Under Non-Equity Incentive Plan Awards (columns (c), (d) and (e)) (1) 2019 Annual Incentive Program Payments Maximum All Other Stock Awards: Number of Shares of Stock or Units Estimated Future Payouts Under Equity Incentive Plan (a) Grant Date Grant Date Fair Value of Stock and Option Threshold Exercise or Base Price of Option Awards ($/Sh) Threshold (f)ff Estimated Future Payouts Under Non-Equity Incentive Plan Awards ( ) ( ) ( ) (j)( )( )(g)( ) ( )( ) (j)( )( )(g)( ) ( )( )( ) ( ) ( ) (2) Cash-Settled Performance Units.