Complēt™ LFT formulations are stronger, tougher and lighter solutions engineered to meet highly demanding performance and design requirements. Formulations are available with glass, carbon or specialty fiber reinforcements, including glass/carbon hybrids, in engineering polymers ranging from polypropylene to PEEK. SEARCH INVESTOR NEWS

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 phase-in costs, executive separation agreements; asset impairments; 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; the effect of changes in accounting principles or other such laws or provisions affecting reported results; and tax adjustments. Tax adjustments include the net tax expense/benefit from one-time income tax items, the set-up or reversal of uncertain tax position reserves and deferred income tax valuation allowance adjustments. Segment Highlights At a Glance: Color, Additives & Inks At a Glance: Specialty Engineered Materials At a Glance: Designed Structures & Solutions At a Glance: Performance Products & Solutions At a Glance: Distribution Application Examples Luxury Packaging�with Gravitech Density Modified Polymers Medical Device Housings�with Chemically Resistant Engineered Polymers Printed Circuit Boards�with Thermally Conductive Polymers Color & Design Services Outdoor Applications Fiber Colorants�Solutions for clothing, apparel, footwear, automotive & sporting goods Slide Number 34 Metal Replacement Solutions High-Barrier Packaging Containers

A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations immediately following the conference call and will be accessible for one year. https://www.avient.com/investors https://edge.media-server.com/mmc/p/fqwbh5zv https://www.avient.com/investors https://register.vevent.com/register/BI3f68f18c2b10416fa722221e3f01ea50 http://www.avient.com/investors/events-presentations 4 About Avient Avient Corporation (NYSE: AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Three Months Ended September 30, 2022 Three Months Ended September 30, 2021 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net (loss) income from continuing operations attributable to Avient shareholders $ (27.4) $ (0.30) $ 33.7 $ 0.37 Special items, after tax (Attachment 3) 68.3 0.75 11.7 0.13 Amortization expense, after-tax 13.4 0.14 $ 11.0 $ 0.11 Adjusted net income / EPS $ 54.3 $ 0.59 $ 56.4 $ 0.61 Nine Months Ended September 30, 2022 Nine Months Ended September 30, 2021 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 99.8 $ 1.08 $ 143.3 $ 1.56 Special items, after tax (Attachment 3) 77.9 0.85 26.0 0.28 Amortization expense, after-tax 34.9 0.38 $ 33.6 0.36 Adjusted net income / EPS $ 212.6 $ 2.31 $ 202.9 $ 2.20 8 Attachment 2 Avient Corporation Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Sales $ 823.3 $ 818.0 $ 2,606.5 $ 2,508.5 Cost of sales 627.9 602.4 1,895.8 1,781.2 Gross margin 195.4 215.6 710.7 727.3 Selling and administrative expense 154.8 162.8 467.8 497.7 Operating income 40.6 52.8 242.9 229.6 Interest expense, net (37.3) (19.0) (70.4) (57.8) Other (expense) income, net (32.3) 1.6 (31.3) 4.3 (Loss) income from continuing operations before income taxes (29.0) 35.4 141.2 176.1 Income tax benefit (expense) 1.2 (2.0) (41.5) (32.1) Net (loss) income from continuing operations (27.8) 33.4 99.7 144.0 Income from discontinued operations, net of income taxes 17.1 19.2 58.8 57.7 Net (loss) income (10.7) 52.6 158.5 201.7 Net loss (income) attributable to noncontrolling interests 0.4 0.3 0.1 (0.7) Net (loss) income attributable to Avient common shareholders $ (10.3) $ 52.9 $ 158.6 $ 201.0 (Loss) earnings per share attributable to Avient common shareholders - Basic: Continuing operations $ (0.30) $ 0.37 $ 1.09 $ 1.57 Discontinued operations 0.19 0.21 0.65 0.63 Total $ (0.11) $ 0.58 $ 1.74 $ 2.20 (Loss) earnings per share attributable to Avient common shareholders - Diluted: Continuing operations $ (0.30) $ 0.37 $ 1.08 $ 1.56 Discontinued operations 0.19 0.20 0.64 0.62 Total $ (0.11) $ 0.57 $ 1.72 $ 2.18 Cash dividends declared per share of common stock $ 0.2375 $ 0.2125 $ 0.7125 $ 0.6375 Weighted-average shares used to compute earnings per common share: Basic 90.9 91.4 91.3 91.3 Diluted 90.9 92.2 92.0 92.1 9 Attachment 3 Avient Corporation Summary of Special Items (Unaudited) (In millions, except per share data) Special items (1) Three Months Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Cost of sales: Restructuring costs, including accelerated depreciation $ (2.8) $ (5.3) $ (9.8) $ (8.6) Environmental remediation costs (18.8) (9.4) (23.8) (22.4) Reimbursement of previously incurred environmental costs 0.1 — 8.3 4.5 Acquisition related costs (10.3) (2.6) (10.3) (1.2) Impact on cost of sales (31.8) (17.3) (35.6) (27.7) Selling and administrative expense: Restructuring, legal and other (0.2) — — (1.7) Acquisition related costs (8.2) (2.7) (13.2) (7.2) Impact on selling and administrative expense (8.4) (2.7) (13.2) (8.9) Impact on operating income (40.2) (20.0) (48.8) (36.6) Interest expense, net - costs related to committed financing (10.0) — (10.0) — Mark-to-market on derivative instruments (31.8) — (30.9) — Other — 0.1 0.1 0.1 Impact on other (expense)/income, net (31.8) 0.1 (30.8) 0.1 Impact on income from continuing operations before income taxes (82.0) (19.9) (89.6) (36.5) Income tax benefit on above special items 20.5 4.6 22.5 8.9 Tax adjustments(2) (6.8) 3.6 (10.8) 1.6 Impact of special items on net income from continuing operations $ (68.3) $ (11.7) $ (77.9) $ (26.0) Diluted earnings per common share impact $ (0.75) $ (0.13) $ (0.85) $ (0.28) Weighted average shares used to compute adjusted earnings per share: Diluted 91.6 92.2 92.0 92.1 (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. 10 Attachment 4 Avient Corporation Condensed Consolidated Balance Sheets (In millions) (Unaudited) September 30, 2022 December 31, 2021 ASSETS Current assets: Cash and cash equivalents $ 544.4 $ 601.2 Accounts receivable, net 504.6 439.9 Inventories, net 441.5 305.8 Current assets held for sale 367.8 360.2 Other current assets 130.0 119.9 Total current assets 1,988.3 1,827.0 Property, net 965.4 672.3 Goodwill 1,491.0 1,284.8 Intangible assets, net 1,525.7 925.2 Operating lease assets, net 56.0 58.2 Non-current assets held for sale — 22.0 Other non-current assets 280.7 207.7 Total assets $ 6,307.1 $ 4,997.2 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 613.9 $ 8.6 Accounts payable 448.7 429.5 Current operating lease obligations 18.1 21.1 Current liabilities held for sale 170.3 141.3 Accrued expenses and other current liabilities 304.6 340.2 Total current liabilities 1,555.6 940.7 Non-current liabilities: Long-term debt 2,502.9 1,850.3 Pension and other post-retirement benefits 91.6 99.9 Deferred income taxes 210.4 100.6 Non-current operating lease obligations 35.7 37.3 Non-current liabilities held for sale — 13.1 Other non-current liabilities 174.8 164.8 Total non-current liabilities 3,015.4 2,266.0 SHAREHOLDERS' EQUITY Avient shareholders’ equity 1,720.4 1,774.7 Noncontrolling interest 15.7 15.8 Total equity 1,736.1 1,790.5 Total liabilities and equity $ 6,307.1 $ 4,997.2 11 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Nine Months Ended September 30, 2022 2021 Operating Activities Net income $ 158.5 $ 201.7 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 110.3 105.8 Accelerated depreciation 4.0 1.9 Share-based compensation expense 9.5 8.4 Changes in assets and liabilities, net of the effect of acquisitions: Increase in accounts receivable (66.5) (199.7) Increase in inventories (12.5) (156.2) Increase in accounts payable 43.5 95.3 Decrease in pension and other post-retirement benefits (15.8) (14.2) (Decrease) increase in accrued expenses and other assets and liabilities, net (7.1) 67.0 Net cash provided by operating activities 223.9 110.0 Investing activities Capital expenditures (55.1) (62.7) Business acquisitions, net of cash acquired (1,426.1) (47.6) Settlement of foreign exchange derivatives 93.3 — Net cash proceeds used by other assets — (2.0) Net cash used by investing activities (1,387.9) (112.3) Financing activities Debt proceeds 1,300.0 — Purchase of common shares for treasury (36.4) (4.2) Cash dividends paid (65.2) (58.2) Repayment of long-term debt (6.8) (16.5) Payments of withholding tax on share awards (4.2) (9.1) Debt financing costs (49.3) — Other financing activities — (3.5) Net cash provided (used) by financing activities 1,138.1 (91.5) Effect of exchange rate changes on cash (30.9) (10.5) Decrease in cash and cash equivalents (56.8) (104.3) Cash and cash equivalents at beginning of year 601.2 649.5 Cash and cash equivalents at end of period $ 544.4 $ 545.2 12 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. Three Months Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Sales: Color, Additives and Inks $ 565.6 $ 586.6 $ 1,864.2 $ 1,820.3 Specialty Engineered Materials 258.2 231.7 743.6 685.3 Corporate and eliminations (0.5) (0.3) (1.3) 2.9 Sales $ 823.3 $ 818.0 $ 2,606.5 $ 2,508.5 Gross margin: Color, Additives and Inks $ 161.3 $ 172.1 $ 546.8 $ 563.0 Specialty Engineered Materials 66.9 61.4 201.3 192.6 Corporate and eliminations (32.8) (17.9) (37.4) (28.3) Gross margin $ 195.4 $ 215.6 $ 710.7 $ 727.3 Selling and administrative expense: Color, Additives and Inks $ 92.7 $ 105.3 $ 290.1 $ 321.1 Specialty Engineered Materials 35.5 31.4 96.4 94.2 Corporate and eliminations 26.6 26.1 81.3 82.4 Selling and administrative expense $ 154.8 $ 162.8 $ 467.8 $ 497.7 Operating income: Color, Additives and Inks $ 68.6 $ 66.8 $ 256.7 $ 241.9 Specialty Engineered Materials 31.4 30.0 104.9 98.4 Corporate and eliminations (59.4) (44.0) (118.7) (110.7) Operating income $ 40.6 $ 52.8 $ 242.9 $ 229.6 Depreciation & amortization: Color, Additives and Inks $ 24.2 $ 26.6 $ 76.1 $ 79.2 Specialty Engineered Materials 12.9 7.9 28.4 23.8 Corporate and eliminations 2.7 2.1 9.2 4.1 Depreciation & Amortization $ 39.8 $ 36.6 $ 113.7 $ 107.1 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 92.8 $ 93.4 $ 332.8 $ 321.1 Specialty Engineered Materials 44.3 37.9 133.3 122.2 Corporate and eliminations (56.7) (41.9) (109.5) (106.6) Other (expense) income, net (32.3) 1.6 (31.3) 4.3 EBITDA $ 48.1 $ 91.0 $ 325.3 $ 341.0 13 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.

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 phase-in costs, executive separation agreements; asset impairments; 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; the effect of changes in accounting principles or other such laws or provisions affecting reported results; and tax adjustments. Tax adjustments include the net tax expense/benefit from one-time income tax items, the set-up or reversal of uncertain tax position reserves and deferred income tax valuation allowance adjustments. Segment Highlights At a Glance: Color, Additives & Inks At a Glance: Specialty Engineered Materials At a Glance: Designed Structures & Solutions At a Glance: Performance Products & Solutions At a Glance: Distribution Application Examples Luxury Packaging�with Gravitech Density Modified Polymers Medical Device Housings�with Chemically Resistant Engineered Polymers Printed Circuit Boards�with Thermally Conductive Polymers Color & Design Services Outdoor Applications Fiber Colorants�Solutions for clothing, apparel, footwear, automotive & sporting goods Slide Number 34 Metal Replacement Solutions High-Barrier Packaging Containers Investor Presentation - November 2016 r4 (2).pdf Investor Presentation - November 2016

Additionally, Adjusted EPS excludes the impact of special items and amortization expense associated with intangible assets. 2 O P E N I N G RE MARK S B O B P A T T E R S O N C H A I R M A N , P R E S I D E N T A N D C E O Complementary technologies and customer relationships offer opportunity to advance commercial strategy Dyneema®, the world’s strongest fiber™, to accelerate growth of sustainable, ultralight and high performance applications AVIENT PROTECTIVE MATERIALS FIRST YEAR 4 Composites comprises over half of Specialty Engineered Materials, compared to 9% in 2016 Proven history of success in areas such as outdoor high performance, defense and sustainable solutions Composites 44% 56% 2023E Sales Collaboration & InnovationComposites as a % of SEM People & Culture Talented, passionate, and creative associates drive continued integration success and allow two cultures to come together as one Avient Lightweight Protective Laminates: PROJECTILE PROTECTION Dyneema® Fiber Solutions Cushioning + Fit + Comfort: LONG-TERM WEAR reSound™ Versaflex™ Thermoplastic Elastomers Strength + Durability + Light-Weighting: SOLID MOUNTING BRACKETS Nymax™ Bergamid™ Complēt™ Engineered Materials Durability + Lubricity: HELMET LATCHES Lubri-One™ Internally Lubricated Polymers Color Consistency and Weatherability CUSTOMIZED SPECIFICATIONS Avient Color and Additive Solutions Antennae Performance FAST, RELIABLE CONNECTIONS PREPERM™ Low-Loss Dielectric Thermoplastics AVIENT PROTECTIVE MATERIALS CROSS SELLING OPPORTUNITIES Wired Connections CONSTANT COMMUNICATION Syncure™ Cross-linkable Wire & Cable Formulations5 6 AVIENT PROTECTIVE MATERIALS CROSS SELLING OPPORTUNITIES 6 Q 3 P E RFO RMAN CE 15.4% 16.3% 2022 PF 2023 Results vs.

NYSE: AVNT) has declared a quarterly cash dividend of twenty-one and one-quarter cents ($0.2125) per share on common stock outstanding, representing the tenth consecutive annual increase.  SEARCH INVESTOR NEWS

One example is Avient’s patented AA scavenger, ColorMatrix™ AAnchor™ Acetaldehyde Scavenger, developed to mitigate the issues associated with ATA-based solutions. Standard testing protocols typically involve one full recycle loop, but as the use of rPET increases, it becomes essential to test through multiple recycle loops.

One example is Avient’s patented AA scavenger, ColorMatrix™ AAnchor™ Acetaldehyde Scavenger, developed to mitigate the issues associated with ATA-based solutions. Standard testing protocols typically involve one full recycle loop, but as the use of rPET increases, it becomes essential to test through multiple recycle loops.

One example is Avient’s patented AA scavenger, ColorMatrix™ AAnchor™ Acetaldehyde Scavenger, developed to mitigate the issues associated with ATA-based solutions. Standard testing protocols typically involve one full recycle loop, but as the use of rPET increases, it becomes essential to test through multiple recycle loops.

The textile industry is currently one of many major industries under pressure to rapidly reduce its environmental impact. One way clothing and footwear producers are working to address these priorities is by using more recycled raw materials, such as recycled polyester from polyethylene terephthalate (PET) bottles, within their synthetic fibers.