Avient has transitioned our Material Safety Data Sheets (MSDSs) to Safety Data Sheets (SDSs) for our manufactured products to meet the requirements of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS), and CLP classification in Europe. Technical Data Sheets Safety Data Sheets

Avient has transitioned our Material Safety Data Sheets (MSDSs) to Safety Data Sheets (SDSs) for our manufactured products to meet the requirements of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS), and CLP classification in Europe. Technical Data Sheets Safety Data Sheets

Avient has transitioned our Material Safety Data Sheets (MSDSs) to Safety Data Sheets (SDSs) for our manufactured products to meet the requirements of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS), and CLP classification in Europe. Technical Data Sheets Safety Data Sheets

Avient has transitioned our Material Safety Data Sheets (MSDSs) to Safety Data Sheets (SDSs) for our manufactured products to meet the requirements of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS), and CLP classification in Europe. Technical Data Sheets Safety Data Sheets

Avient has transitioned our Material Safety Data Sheets (MSDSs) to Safety Data Sheets (SDSs) for our manufactured products to meet the requirements of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS), and CLP classification in Europe. Technical Data Sheets Safety Data Sheets

DATA STORAGE UNIT MANUFACTURER D A T A S T O R A G E C A R R I E R • Excellent dimensional stability • Good mechanical properties with excellent wear resistance • Flame retardant requirement – FRv0 compliance • UL certification • Provided a customized formulation to meet application-specific lubricity, physical and thermal requirements • Delivered on short lead times to help customer manage working capital LubriOne™ CY1000-000/5T FR V0 BLK001 Formulation KEY REQUIREMENTS WHY AVIENT?

Rose Vice President, Corporate Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com 5 Attachment 1 Avient Corporation Summary of 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 Operating Income 128.6 120.4 Net income attributable to Avient shareholders 84.2 79.3 Basic earnings per share attributable to Avient shareholders $ 0.92 $ 0.87 Diluted earnings per share attributable to Avient shareholders $ 0.91 $ 0.86 Senior management uses comparisons of adjusted net income attributable to Avient shareholders and diluted adjusted earnings per share (EPS) attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results. 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 Three Months Ended March 31, 2022 2021 Sales: Color, Additives and Inks $ 649.5 $ 609.3 Specialty Engineered Materials 244.7 216.5 Distribution 432.9 362.7 Corporate and eliminations (33.3) (26.2) Sales $ 1,293.8 $ 1,162.3 Gross margin: Color, Additives and Inks $ 192.1 $ 197.5 Specialty Engineered Materials 69.8 64.7 Distribution 39.3 39.3 Corporate and eliminations (7.5) 0.9 Gross margin $ 293.7 $ 302.4 Selling and administrative expense: Color, Additives and Inks $ 97.6 $ 108.7 Specialty Engineered Materials 30.1 30.5 Distribution 15.1 15.3 Corporate and eliminations 22.3 27.5 Selling and administrative expense $ 165.1 $ 182.0 Operating income: Color, Additives and Inks $ 94.5 $ 88.8 Specialty Engineered Materials 39.7 34.2 Distribution 24.2 24.0 Corporate and eliminations (29.8) (26.6) Operating income $ 128.6 $ 120.4 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 120.5 $ 116.2 Specialty Engineered Materials 47.5 42.0 Distribution 24.4 24.2 Corporate and eliminations (26.0) (24.9) Other income, net (0.6) 1.5 EBITDA $ 165.8 $ 159.0 11 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses gross margin before special items and operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance.

Avient has transitioned our Material Safety Data Sheets (MSDSs) to Safety Data Sheets (SDSs) for our manufactured products to meet the requirements of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS), and CLP classification in Europe. Technical Data Sheets Safety Data Sheets

Avient has transitioned our Material Safety Data Sheets (MSDSs) to Safety Data Sheets (SDSs) for our manufactured products to meet the requirements of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS), and CLP classification in Europe. Technical Data Sheets Safety Data Sheets

Avient has transitioned our Material Safety Data Sheets (MSDSs) to Safety Data Sheets (SDSs) for our manufactured products to meet the requirements of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS), and CLP classification in Europe. Technical Data Sheets Safety Data Sheets