The company noted it will provide more details on its second quarter results and outlook during the webcast scheduled for 8:00 a.m. 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. Three Months Ended June 30, 2021 Three Months Ended June 30, 2020 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 68.8 $ 0.74 $ 23.0 $ 0.25 Special items, after tax (Attachment 3) 11.7 0.13 2.6 0.03 Adjusted net income / EPS - excluding special items $ 80.5 $ 0.87 $ 25.6 $ 0.28 Six Months Ended June 30, 2021 Six Months Ended June 30, 2020 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 148.1 $ 1.60 $ 56.1 $ 0.63 Special items, after tax (Attachment 3) 14.3 0.16 11.2 0.12 Adjusted net income / EPS - excluding special items $ 162.4 $ 1.76 $ 67.3 $ 0.75 7 Attachment 2 Avient Corporation Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Sales $ 1,235.2 $ 609.1 $ 2,397.5 $ 1,320.6 Cost of sales 946.5 459.4 1,806.4 999.4 Gross margin 288.7 149.7 591.1 321.2 Selling and administrative expense 180.6 111.7 362.6 230.4 Operating income 108.1 38.0 228.5 90.8 Interest expense, net (19.5) (16.2) (38.8) (25.6) Other income, net 1.2 9.5 2.7 11.1 Income from continuing operations before income taxes 89.8 31.3 192.4 76.3 Income taxes (20.4) (7.9) (43.3) (19.8) Net income from continuing operations 69.4 23.4 149.1 56.5 Loss from discontinued operations, net of income taxes — (0.2) — (0.5) Net income 69.4 23.2 149.1 56.0 Net income attributable to noncontrolling interests (0.6) (0.4) (1.0) (0.4) Net income attributable to Avient common shareholders $ 68.8 $ 22.8 $ 148.1 $ 55.6 Earnings per share attributable to Avient common shareholders - Basic: Continuing operations $ 0.75 $ 0.25 $ 1.62 $ 0.63 Discontinued operations — — — — Total $ 0.75 $ 0.25 $ 1.62 $ 0.63 Earnings per share attributable to Avient common shareholders - Diluted: Continuing operations $ 0.74 $ 0.25 $ 1.60 $ 0.63 Discontinued operations — — — (0.01) Total $ 0.74 $ 0.25 $ 1.60 $ 0.62 Cash dividends declared per share of common stock $ 0.2125 $ 0.2025 $ 0.4250 $ 0.4050 Weighted-average shares used to compute earnings per common share: Basic 91.3 91.4 91.3 88.8 Diluted 92.4 91.8 92.3 89.4 8 Attachment 3 Avient Corporation Summary of Special Items (Unaudited) (In millions, except per share data) Special items (1) Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Cost of sales: Restructuring costs, including accelerated depreciation and amortization $ (1.5) $ (1.2) $ (3.3) $ (1.2) Environmental remediation costs (12.5) (3.1) (13.0) (3.5) Reimbursement of previously incurred environmental costs — 8.5 4.5 8.7 Acquisition related costs 1.4 — 1.4 — Impact on cost of sales (12.6) 4.2 (10.4) 4.0 Selling and administrative expense: Restructuring, legal and other (1.4) (3.5) (2.7) (5.3) Acquisition earn-out adjustments — — — (1.0) Acquisition related costs (0.2) (9.7) (3.5) (16.4) Impact on selling and administrative expense (1.6) (13.2) (6.2) (22.7) Impact on operating income (14.2) (9.0) (16.6) (18.7) Costs related to committed financing in interest expense, net — (0.5) — (0.5) Other income, net — 0.2 — 0.3 Pension settlement gain and mark-to-market adjustment — 6.9 — 6.9 Impact on income from continuing operations before income taxes (14.2) (2.4) (16.6) (12.0) Income tax benefit on above special items 3.4 0.7 4.3 2.7 Tax adjustments(2) (0.9) (0.9) (2.0) (1.9) Impact of special items on net income from continuing operations attributable to Avient Shareholders $ (11.7) $ (2.6) $ (14.3) $ (11.2) Diluted earnings per common share impact $ (0.13) $ (0.03) $ (0.16) $ (0.12) Weighted average shares used to compute adjusted earnings per share: Diluted 92.4 91.8 92.3 89.4 (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

Patterson added, “We will provide more details on our upcoming webcast, but our headline projection for 2021 is that we expect revenue growth of approximately 8% pro forma will drive adjusted EPS expansion from $1.93 to $2.40 - an increase of 24%.” 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. 2) Tax adjustments include the net tax benefit/(expense) from one-time income tax items, adjustments to uncertain tax position reserves and deferred income tax valuation allowances. 8 Attachment 4 Condensed Consolidated Balance Sheets (Unaudited) ASSETS Current assets: Cash and cash equivalents $ 649.5 $ 864.7 Accounts receivable, net 516.6 330.0 Inventories, net 327.5 260.9 Other current assets 89.9 57.7 Total current assets 1,583.5 1,513.3 Property, net 694.9 407.4 Goodwill 1,308.1 685.7 Intangible assets, net 1,008.5 469.3 Operating lease assets, net 80.9 63.8 Other non-current assets 195.4 133.8 Total assets $ 4,871.3 $ 3,273.3 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 18.6 $ 18.4 Accounts payable 471.7 287.7 Current operating lease obligations 25.1 21.0 Accrued expenses and other current liabilities 289.2 375.4 Total current liabilities 804.6 702.5 Non-current liabilities: Long-term debt 1,854.0 1,210.9 Pension and other post-retirement benefits 115.0 56.6 Deferred income taxes 150.7 63.5 Non-current operating lease obligations 56.0 42.8 Other non-current liabilities 192.8 144.3 Total non-current liabilities 2,368.5 1,518.1 SHAREHOLDERS' EQUITY Avient shareholders’ equity 1,683.6 1,051.9 Noncontrolling interest 14.6 0.8 Total equity 1,698.2 1,052.7 Total liabilities and equity $ 4,871.3 $ 3,273.3 9 Attachment 5 Condensed Consolidated Statements of Cash Flows (Unaudited) Year Ended 2020 2019 Operating activities Net income $ 133.4 $ 588.8 Adjustments to reconcile net income to net cash provided by operating activities: Gain on sale of business, net of tax — (457.7) Depreciation and amortization 111.8 87.5 Accelerated depreciation and fixed asset charges associated with restructuring activities 3.2 — Deferred income tax benefit (1.1) (3.2) Share-based compensation expense 11.3 11.6 Changes in assets and liabilities, net of the effect of acquisitions: (Increase) decrease in accounts receivable (4.6) 29.7 Decrease in inventories 40.2 40.2 Increase (decrease) in accounts payable 79.5 (22.7) Increase (decrease) in pension and other post-retirement benefits 30.7 (19.7) Increase in post-acquisition earnout liabilities 1.0 36.4 (Decrease) increase in accrued expenses and other assets and liabilities - net (3.7) 9.9 Taxes paid on gain on sale of business (142.0) — Payment of post-acquisition date earnout liability (38.1) — Net cash provided by operating activities 221.6 300.8 Investing activities Capital expenditures (63.7) (81.7) Business acquisitions, net of cash acquired (1,380.2) (119.6) Net proceeds from divestiture 7.1 761.8 Net proceeds from other assets 5.2 51.4 Net cash (used) provided by investing activities (1,431.6) 611.9 Financing activities Debt offering proceeds 650.0 — Borrowings under credit facilities — 963.4 Repayments under credit facilities — (1,083.9) Purchase of common shares for treasury (22.4) (26.9) Cash dividends paid (71.3) (60.3) Repayment of other debt — (1.8) Repayment of long-term debt (7.8) (6.5) Payments on withholding tax on share awards (2.3) (2.1) Debt financing costs (9.5) (0.2) Equity offering proceeds, net of underwriting discount and issuance costs 496.1 — Payment of acquisition date earnout liability (50.8) — Net cash provided (used) by financing activities 982.0 (218.3) Effect of exchange rate changes on cash 12.8 (0.6) (Decrease) increase in cash and cash equivalents (215.2) 693.8 Cash and cash equivalents at beginning of year 864.7 170.9 Cash and cash equivalents at end of year $ 649.5 $ 864.7 10 Attachment 6 Business Segment Operations (Unaudited) Operating income 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.

The company noted it will provide more details on its third quarter results and outlook during the webcast scheduled for 8:00 a.m. 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. 5 Non-GAAP Financial Measures The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Three Months Ended September 30, 2021 Three Months Ended September 30, 2020 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 52.9 $ 0.57 $ 1.7 $ 0.02 Special items, after tax (Attachment 3) 11.7 0.13 40.3 0.44 Adjusted net income / EPS - excluding special items $ 64.6 $ 0.70 $ 42.0 $ 0.46 Nine Months Ended September 30, 2021 Nine Months Ended September 30, 2020 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 201.0 $ 2.18 $ 57.8 $ 0.64 Special items, after tax (Attachment 3) 26.0 0.28 51.5 0.57 Adjusted net income / EPS - excluding special items $ 227.0 $ 2.46 $ 109.3 $ 1.21 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, 2021 2020 2021 2020 Sales $ 1,219.8 $ 924.5 $ 3,617.3 $ 2,245.1 Cost of sales 964.4 714.3 2,770.8 1,713.7 Gross margin 255.4 210.2 846.5 531.4 Selling and administrative expense 176.7 176.7 539.3 407.1 Operating income 78.7 33.5 307.2 124.3 Interest expense, net (19.0) (29.7) (57.8) (55.3) Other income, net 1.4 1.5 4.1 12.6 Income from continuing operations before income taxes 61.1 5.3 253.5 81.6 Income taxes (8.5) (2.7) (51.8) (22.5) Net income from continuing operations 52.6 2.6 201.7 59.1 Loss from discontinued operations, net of income taxes — — — (0.5) Net income 52.6 2.6 201.7 58.6 Net loss (income) attributable to noncontrolling interests 0.3 (0.9) (0.7) (1.3) Net income attributable to Avient common shareholders $ 52.9 $ 1.7 $ 201.0 $ 57.3 Earnings per share attributable to Avient common shareholders - Basic: Continuing operations $ 0.58 $ 0.02 $ 2.20 $ 0.64 Discontinued operations — — — — Total $ 0.58 $ 0.02 $ 2.20 $ 0.64 Earnings per share attributable to Avient common shareholders - Diluted: Continuing operations $ 0.57 $ 0.02 $ 2.18 $ 0.64 Discontinued operations — — — (0.01) Total $ 0.57 $ 0.02 $ 2.18 $ 0.63 Cash dividends declared per share of common stock $ 0.2125 $ 0.2025 $ 0.6375 $ 0.6075 Weighted-average shares used to compute earnings per common share: Basic 91.4 91.5 91.3 89.7 Diluted 92.2 91.9 92.1 90.7 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, 2021 2020 2021 2020 Cost of sales: Restructuring costs, including accelerated depreciation and amortization $ (5.3) $ (1.3) $ (8.6) $ (2.5) Environmental remediation costs (9.4) (15.8) (22.4) (19.3) Reimbursement of previously incurred environmental costs — — 4.5 8.7 Acquisition related costs (2.6) (10.5) (1.2) (10.5) Impact on cost of sales (17.3) (27.6) (27.7) (23.6) Selling and administrative expense: Restructuring, legal and other — (4.2) (1.7) (9.5) Acquisition earn-out adjustments — (1.5) — (2.5) Acquisition related costs (2.7) (7.1) (7.2) (23.5) Impact on selling and administrative expense (2.7) (12.8) (8.9) (35.5) Impact on operating income (20.0) (40.4) (36.6) (59.1) Costs related to committed financing in interest expense, net — (9.6) — (10.1) Other income, net 0.1 — 0.1 0.3 Pension settlement gain and mark-to-market adjustment — — — 6.9 Impact on income from continuing operations before income taxes (19.9) (50.0) (36.5) (62.0) Income tax benefit on above special items 4.6 12.7 8.9 15.4 Tax adjustments(2) 3.6 (3.0) 1.6 (4.9) Impact of special items on net income from continuing operations attributable to Avient Shareholders $ (11.7) $ (40.3) $ (26.0) $ (51.5) Diluted earnings per common share impact $ (0.13) $ (0.44) $ (0.28) $ (0.57) Weighted average shares used to compute adjusted earnings per share: Diluted 92.2 91.9 92.1 90.7 (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

Winona, Minnesota 8. Pamplona, Spain 8. AVERAGE TENURE 8 years AVERAGE AGE 61 RACIAL 17% Board of Directors Governance GENDER 25% female TOTAL DIVERSITY 42% HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2022 80 https://www.avient.com/sites/default/files/2023-01/Corporate%20Governance%20Guidelines%20REV%202022.pdf Robert M.

ดำ�เนินการทันที ในการแยกตวัเองออกมาจากการประชุมใด ๆ กับคูแ่ข่งซ่ึงเป็นที่ที่มีการหารอืเรือ่งราคาหรอืหัวข้อใด ๆ ที่มี การสนทนาก่อนหน้าน้ี และแสดงตวัออกจากการประชุมหรอื การชุมนุมอย่างชัดเจนเพื่อให้ผู้ที่อยู่ที่น่ันจำ�ได ้( ในอีกแง่หน่ึง ก็คอือย่าแค ่“หลบฉากออกไป”) ให้บันทึกเหตกุารณ์รวมถึงตอบ คำ�ถามดงัตอ่ไปน้ี: มี ใครอยู่ ในการประชุมน้ันบ้าง การประชุม เกิดขึน้เมื่อใดและที่ ไหน และเกิดอะไรขึน้ที่การประชุมน้ัน 8. ตดิตอ่ฝ่ายกฎหมายของ Avient หากคณุมีคำ�ถามใด ๆ ที่เกี่ยว กับความถูกตอ้งของการปฏิบัติ ใด ๆ ที่คณุกำ�ลังครุน่คดิ 8 การอ้างอิงด่วน: สิง่ท่ีต้องกระทำ�และสิง่ท่ีต้องไม่กระทำ� สิง่ท่ีต้องกระทำ� ✓ ดำ�เนินการเขียนรายงานถึงฝ่ายกฎหมายของ Avient ทันทีที่ ไดร้บัการตดิตอ่ของคูแ่ข่งในการรอ้งขอหรอืการส่ือสารเกี่ยวกับการตัง้ราคาหรอื ข้อมูลการแข่งขันอื่น ๆ ✓ ดำ�เนินการตดับทสนทนาใด ๆ ที่คูแ่ข่งยกขึน้มาพูดเกี่ยวกับเรือ่งการตัง้ราคา หรอืหัวข้อที่ตอ้งห้าม และเขียนรายงานบทสนทนาน้ันไปที่ฝ่าย กฎหมายของ Avient ✓ บันทึกเอกสารเกี่ยวกับแหล่งที่มาและวนัที่ของการไดร้บัรายการราคาของคูแ่ข่งทัง้หมดและข้อมูลการแข่งขันอื่น ๆ จัดเก็บในแฟ้มของคณุ ✓ ออกจากการประชุมใด ๆ ที่คูแ่ข่งหารอืเรือ่งราคาและลูกคา้ทันที ทันทีที่ออกมา ให้จดเวลา สถานที่ บุคคลที่เกี่ยวข้องกับการหารอื ลงนามและ ลงวนัที่ ในบันทึกและส่งไปที่ฝ่ายกฎหมายของ Avient ✓ ดำ�เนินการปรกึษากับฝ่ายกฎหมายของ Avient ก่อนการทำ�ธุรกิจการคา้กับคูแ่ข่ง สิง่ท่ีต้องไม่กระทำ� × ห้ามมิ ให้หารอืกับคูแ่ข่งเรือ่งราคา ( ในอดตี ปัจจุบัน อนาคต) ยุทธศาสตรร์าคา การประมูลหรอืการเสนอราคา เงือ่นไขหรอืข้อกำ�หนดในการ ขาย ลูกคา้ หรอืความชอบ × ห้ามมิ ให้แลกเปลีย่นราคาหรอืข้อมูลการแข่งขันอื่น ๆ กับคูแ่ข่งทัง้โดยตรงหรอืผ่านตวักลาง × ห้ามมิ ให้ถามคูแ่ข่งเกี่ยวกับการตัง้ราคาหรอืข้อมูลการแข่งขันอื่น ๆ หรอืส่ือสารกับคูแ่ข่งเกี่ยวกับราคาปัจจุบันหรอืราคาคาดหวงัของบรษัิท เมื่อมีการรอ้งขอหรอืจะไม่มีการรอ้งขอก็ตาม × ห้ามมิ ให้หารอืกับคูแ่ข่งใด ๆ เกี่ยวกับลูกคา้ที่บรษัิทไม่ตอ้งการขาย หรอืผู้ผลิตที่บรษัิทไม่ตอ้งการซือ้ × ห้ามมิ ให้เห็นดว้ยกับการแบ่งอาณาเขต ผลิตภัณฑ์ และลูกคา้กับคูแ่ข่ง × ห้ามมิ ให้เห็นดว้ยกับการกระตุน้หรอืบอกให้บุคคลอื่นใดทำ�ธุรกิจกับผู้อื่น × ห้ามมิ ให้ปรกึษาแผนยุทธศาสตรท์ี่เฉพาะเจาะจงหรอืข้อมูลการตลาด รวมถึงกำ�ลังการผลิตหรอือรรถประโยชน์ การพัฒนาส่ิงอำ�นวยความ สะดวก ผลิตภัณฑ์ ในอนาคต หรอืแผนการตลาดหรอืข้อมูลการแข่งขันที่เป็นความลับอื่น ๆ หากคุณพบว่าตัวคุณเองอยู่ ในท่ี ท่ี คู่แข่งยกประเด็นเหล่าน้ี ขึ ้ นมา ให้ออกจากห้องน้ันโดยทันที ติดต่อฝ่ายกฎหมายของ Avient เม่ื อมี โอกาสเป็ นอย่างแรก และบันทึกเหตุการณ์ดังกล่าว 9 www.avient.com อเมรกิาเหนอื Global Headquarters Avon Lake, United States 33587 Walker Road Avon Lake, OH, United States 44012 หมายเลขโทรฟร :ี 1-866-765-9663 โทรศพัท:์ 1-440-930-1000 โทรสาร +440 930 3064 เอเช ยีแปซ ฟิ กิ Regional Headquarters Shanghai, China 2F, Block C 200 Jinsu Road Pudong, 201206 Shanghai, China โทรศพัท:์ +86 (0) 21 6028 4888 โทรสาร +86 (0) 21 6028 4999 อเมรกิาใต ้ Regional Headquarters Sao Paulo, Brazil Av.

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. Share gains and geographic penetration all Avient Amplify innovation Copyright © . 2025 8 Build new platforms of scale GROW BUSINESS AT 10% PLUS CAGR 1.

If you receive inquiries of this nature you should refer them to the Investor Relations Department. 8. Transactions under Company Plans: This policy, other than any pre-clearance requirements in Section 8, does not apply to the exercise of an employee stock option if the exercise price is entirely paid in cash or a stock appreciation right settled and held in common shares under the Company’s equity plan(s).

Melle, Germany 8. Mountain Top, 8. ITEM 8.

Kutno, Poland 8. Greenville, North Carolina 8. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK ITEM 8.

Melle, Germany 8. Vonore, Tennessee 8. ITEM 8.