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MAR2005)1, J2412, J2527; BO 116-01 Xenon Arc Weathering (Exposure Testing) SAE J361 Visual Inspection of Automotive Trim GM9302P, GMW17141 Stress Mark Susceptibility GMW14688 Scratch and Mar Resistance (Erichsen) BN108-13, BO162-01 Resistance to Scratching GMW3205 Resistance to Odor Propagation of Interior Materials 1 This laboratory’s scope contains a superseded method.

Any times or dates for delivery communicated by Seller (including those contained in Seller’s order confirmation) are estimates only and are not terms of the sale. Buyer acknowledges that Seller has furnished to Buyer Safety Data Sheets, which include warnings together with safety and health information concerning the Product and/or the containers for such Product. No modification or addition to the contract shall occur by the acknowledgment or acceptance by Seller of a purchase order, acknowledgment, release or other form submitted by Buyer containing additional or different terms or conditions. 21.

The company reported second quarter sales of $866.5 million, compared to $849.7 million in the prior year quarter. On behalf of our entire Avient team, I’m pleased to report organic revenue growth for the fifth consecutive quarter driven by our focus on executing our strategy," said Dr. Visit www.avient.com to learn more. 4 Forward-looking Statements In this press release, statements that are not reported financial results or other historical information are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995.

Our Code of Conduct is available in over 20 languages and can be found at: https://www.avient.com/company/policies-and-governance/code-conduct https://www.avient.com/company/policies-and-governance/code-conduct Our Ethics Hotline is available 24 hours a day, 7 days a week, by phone or web, for our associates and the community to report any concerns or make inquiries. Those making reports can remain anonymous.

In this training guide specific to Avient suppliers, we will define: ➢ How to view and manage Avient POs through the CSP ➢ How to view PO lines ➢ How to add shipment tracking information to a PO ➢ How to view and manage Advanced Shipment Notifications (ASN) ➢ How to create costume views for reports View and manage POs Click on the Orders tab on the main menu. You can create custom views (tables for reports) for orders, order lines, order changes, order line changes, advance ship notices (ASN), invoices and catalogs.

Corporate Responsibility • Provide oversight and guidance with regard to how the Board and management evaluate and integrate corporate responsibility and sustainability matters into the Company’s business strategy and decision-making, including overseeing risks relating to the Company's programs, policies, and practices on sustainability and environmental, social, and governance matters, by receiving regular updates from management, as well as reviewing reports on corporate responsibility and/or sustainability published by the Company. Committee Meetings and Action • A majority of the Committee members will be a quorum for the transaction of business. • The action of a majority of those present at a meeting at which a quorum is present will be the act of the Committee. • Any action that may be taken at a meeting of the Committee may be taken by written consent so long as the written consent is unanimously approved and filed with the Corporate Secretary. 4 • The Company’s General Counsel and Corporate Secretary will be the management liaison to the Committee. • The Committee may appoint subcommittees from time to time as needed, and may delegate authority to such subcommittees or to officers of the Company, when appropriate, consistent with applicable laws, regulations, and listing standards. • The Corporate Secretary or his or her designee will be responsible for keeping minutes of the Committee meetings. • The Committee will meet at least two times a year and at such other times as may be requested by its Chairman. • The Committee will regularly report the Committee’s activities and any recommendations to the Board in such manner and at such times as the Committee or the Board deems appropriate. • The Committee will annually review its charter and recommend any changes to the Board of Directors.

Corporate Responsibility Provide oversight and guidance with regard to how the Board and management evaluate and integrate corporate responsibility and sustainability matters into the Company’s business strategy and decision-making, including overseeing risks at a strategic level relating to the Company's programs, policies, and practices on sustainability and environmental, social, and governance matters, by receiving regular updates from management, as well as reviewing reports on corporate responsibility and/or sustainability published by the Company. The Committee will regularly report the Committee’s activities and any recommendations to the Board in such manner and at such times as the Committee or the Board deems appropriate.

Our Code of Conduct is available in over 20 languages and can be found at: https://www.avient.com/company/policies-and-governance/code-conduct Our Ethics Hotline is available 24 hours a day, 7 days a week, by phone or web, for our associates and the community to report any concerns or make inquiries. Those making reports can remain anonymous.

For more information, visit www.avient.com/. http://www.avient.com/investors https://edge.media-server.com/mmc/p/edkwvu9r https://edge.media-server.com/mmc/p/edkwvu9r http://www.avient.com/investors https://www.avient.com/ 3 Forward-looking Statements In this press release, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. 4 Non-GAAP Financial Measures The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Three Months Ended March 31, 2022 Three Months Ended March 31, 2021 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income attributable to Avient shareholders $ 84.2 $ 0.91 $ 79.3 $ 0.86 Special items, after tax (Attachment 3) 7.2 0.08 2.6 0.03 Adjusted net income / EPS - excluding special items $ 91.4 $ 0.99 $ 81.9 $ 0.89 6 Attachment 2 Avient Corporation Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended March 31, 2022 2021 Sales $ 1,293.8 $ 1,162.3 Cost of sales 1,000.1 859.9 Gross margin 293.7 302.4 Selling and administrative expense 165.1 182.0 Operating income 128.6 120.4 Interest expense, net (16.9) (19.3) Other (expense) income, net (0.6) 1.5 Income before income taxes 111.1 102.6 Income taxes (26.6) (22.9) Net income 84.5 79.7 Net income attributable to noncontrolling interests (0.3) (0.4) Net income attributable to Avient shareholders $ 84.2 $ 79.3 Earnings per share attributable to Avient common shareholders - Basic $ 0.92 $ 0.87 Earnings per share attributable to Avient common shareholders - Diluted $ 0.91 $ 0.86 Cash dividends declared per share of common stock $ 0.2375 $ 0.2125 Weighted-average shares used to compute earnings per common share: Basic 91.5 91.3 Diluted 92.3 92.2 7 Attachment 3 Avient Corporation Summary of Special Items (Unaudited) (In millions, except per share data) Special items (1) Three Months Ended March 31, 2022 2021 Cost of sales: Restructuring costs, including accelerated depreciation and amortization $ (4.4) $ (1.8) Environmental remediation costs (2.0) (0.5) Reimbursement of previously incurred environmental costs 0.6 4.5 Impact on cost of sales (5.8) 2.2 Selling and administrative expense: Restructuring, legal and other 0.9 (1.3) Acquisition related costs (2.9) (3.3) Impact on selling and administrative expense (2.0) (4.6) Impact on operating income (7.8) (2.4) Other income, net 0.1 — Impact on income before income taxes (7.7) (2.4) Income tax benefit on above special items 2.0 0.9 Tax adjustments(2) (1.5) (1.1) Impact of special items on net income attributable to Avient Shareholders $ (7.2) $ (2.6) Diluted earnings per common share impact $ (0.08) $ (0.03) Weighted average shares used to compute adjusted earnings per share: Diluted 92.3 92.2 (1) Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; costs incurred directly in relation to acquisitions or divestitures; employee separation costs resulting from personnel reduction programs, plant realignment costs, executive separation agreements; asset impairments; settlement gains or losses and mark-to- market adjustments associated with actuarial gains and losses on pension and other post-retirement benefit plans; environmental remediation costs, fines, penalties and related insurance recoveries related to facilities no longer owned or closed in prior years; gains and losses on the divestiture of operating businesses, joint ventures and equity investments; gains and losses on facility or property sales or disposals; results of litigation, fines or penalties, where such litigation (or action relating to the fines or penalties) arose prior to the commencement of the performance period; one-time, non-recurring items; and the effect of changes in accounting principles or other such laws or provisions affecting reported results. (2) Tax adjustments include the net tax benefit/(expense) from one-time income tax items, the set-up or reversal of uncertain tax position reserves and deferred income tax valuation allowance adjustments. 8 Attachment 4 Avient Corporation Condensed Consolidated Balance Sheets (In millions) (Unaudited) March 31, 2022 December 31, 2021 ASSETS Current assets: Cash and cash equivalents $ 562.6 $ 601.2 Accounts receivable, net 757.9 642.3 Inventories, net 475.4 461.1 Other current assets 131.0 122.4 Total current assets 1,926.9 1,827.0 Property, net 661.9 676.1 Goodwill 1,283.4 1,286.4 Intangible assets, net 904.1 925.2 Operating lease assets, net 67.1 74.1 Other non-current assets 200.3 208.4 Total assets $ 5,043.7 $ 4,997.2 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 607.5 $ 8.6 Accounts payable 642.3 553.9 Current operating lease obligations 21.7 24.2 Accrued expenses and other current liabilities 284.8 353.9 Total current liabilities 1,556.3 940.6 Non-current liabilities: Long-term debt 1,250.2 1,850.3 Pension and other post-retirement benefits 98.5 100.0 Deferred income taxes 99.4 100.6 Non-current operating lease obligations 45.9 50.1 Other non-current liabilities 164.1 165.1 Total non-current liabilities 1,658.1 2,266.1 SHAREHOLDERS' EQUITY Avient shareholders’ equity 1,813.2 1,774.7 Noncontrolling interest 16.1 15.8 Total equity 1,829.3 1,790.5 Total liabilities and equity $ 5,043.7 $ 4,997.2 9 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Three Months Ended March 31, 2022 2021 Operating Activities Net income $ 84.5 $ 79.7 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 35.7 36.6 Accelerated depreciation and amortization 2.1 0.5 Share-based compensation expense 3.2 2.7 Changes in assets and liabilities, net of the effect of acquisitions: Increase in accounts receivable (118.8) (137.6) Increase in inventories (15.1) (35.1) Increase in accounts payable 90.5 67.3 Decrease in pension and other post-retirement benefits (4.0) (7.1) Decrease in accrued expenses and other assets and liabilities, net (59.2) (3.4) Net cash provided by operating activities 18.9 3.6 Investing activities Capital expenditures (13.3) (16.5) Other investing activities — (2.0) Net cash used by investing activities (13.3) (18.5) Financing activities Purchase of common shares for treasury (15.8) (4.2) Cash dividends paid (21.7) (19.5) Repayment of long-term debt (2.4) (2.3) Payments of withholding tax on share awards (3.9) (3.1) Net cash used by financing activities (43.8) (29.1) Effect of exchange rate changes on cash (0.4) (11.0) Decrease in cash and cash equivalents (38.6) (55.0) Cash and cash equivalents at beginning of year 601.2 649.5 Cash and cash equivalents at end of period $ 562.6 $ 594.5 10 Attachment 6 Avient Corporation Business Segment Operations (Unaudited) (In millions) Operating income and earnings before interest, taxes, depreciation and amortization (EBITDA) at the segment level does not include: special items as defined in Attachment 3; corporate general and administration costs that are not allocated to segments; intersegment sales and profit eliminations; share-based compensation costs; and certain other items that are not included in the measure of segment profit and loss that is reported to and reviewed by the chief operating decision maker.