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WET GRIP TECHNOLOGY PROVIDES POWERFUL SOLUTION FOR SURFCO HAWAII © 2021, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 1 Wax Mat® is a trademark of SurfCo Hawaii, Inc.

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We thank you for your understanding, and we look forward to serving your needs. 3 Table of contents A Message from our Global Quality Manager ...............................................................2 Avient Corporation: Overview ............................4 Avient Policy for Customer Audits ......................5 Management Responsibility ...............................6 Product Liability Insurance .............................6 Ethics - Code of Conduct.................................6 Modern Slavery Statement .............................6 Conflict Mineral Policy ....................................6 Technical Data Sheets.....................................6 Safety Data Sheets..........................................6 Regulatory Requests and Certificates (FDA certificate, Absence declaration, REACH, SDS) ........................................6 Safety Performance ........................................6 Environmental Performance...........................6 Energy Management ......................................6 Business Continuation Plan.............................6 Preventive - Predictive Maintenance..............6 Financial Report..............................................6 Quality Management..........................................7 3rd Party Certification ......................................7 Complaint Handling ........................................7 Continuous Improvement ...............................7 Traceability .....................................................7 Record Retention............................................7 IT Security.........................................................8 Firewall .........................................................8 Critical Data ..................................................8 IT Disaster Recovery .....................................8 IT Systems of Use Policy ...............................8 Annex 1 - Special dispositions related to ISO 13485 certification for Mevopur .......................9 Change control .............................................9 Validation .....................................................9 Control of documents and records ...............9 Supplier approval and supplier evaluation ...9 Traceability ...................................................9 Material management ..................................9 Release of finished products.........................9 Control of Non-conforming products, complaints handling, recall and CAPA..........9 Annex 2 – special dispositions related to ISO 22000 certification............................................10 Change..........................................................10 HACCP ..........................................................10 Control of documents and records ...............10 Material management ..................................10 Supplier approval and supplier evaluation ...10 Traceability ...................................................10 Release of finished products.........................10 Control of Non-conforming products, complaints handling, recall and CAPA..........10 4 Avient Corporation: Overview The Avient website is your home base for information about the company: http://www.avient.com/ To find our facility locations: http://www.avient.com/contact/global-directory-and-contacts For more information about our management systems certifications, including ISO, go to: http://www.avient.com/company/sustainability/environmental/global-iso-certificate-library Avient Governance (corporate policies and the Avient Code of Conduct): http://www.avient.com/investors/governance Financial reports: https://www.avient.com/investors Avient Sustainability Report: https://www.avient.com/company/sustainability http://www.avient.com/ http://www.avient.com/contact/global-directory-and-contacts http://www.avient.com/company/sustainability/environmental/global-iso-certificate-library http://www.avient.com/investors/governance https://www.avient.com/investors https://www.avient.com/company/sustainability 5 Avient Policy for Customer Audits Avient may permit audits of facilities, subject to:  Advanced notice and an audit agenda provided at least thirty (30) days in advance or as agreed by the Avient location to be audited for a routine audit

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. 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.

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TECHNICAL EXPERTISE HELPS ELECTRONIC CONNECTOR COMPANY ENTER NEW MARKET © 2021, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 To learn more about Bergamid™ Nylon Formulations, contact Avient at +1.844.4AVIENT (1.844.428.4368) or visit us at avient.com.