Jurong, Singapore 7. Winona, Minnesota 7. s/ ASHISH K.

Goff’ff s deep understanding of ethe energy industry and specialty chemical businesses provid ses valuable insight into PolyOne’s strategic planning. 7) Represents a grant of performance shares on March 13, 2014. B-7 4.

AVNT-2024.03.31-News Release 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces First Quarter 2024 Results • First quarter GAAP EPS from continuing operations of $0.54 compared to $0.23 in the prior year quarter • First quarter adjusted EPS of $0.76 exceeded guidance of $0.68 primarily as a result of better-than-expected customer demand from defense applications and lower raw material costs • First quarter adjusted EPS increased 21% over the prior year driven by improved margins from lower raw material costs and favorable mix, and lower net interest expense • Revised 2024 full-year adjusted EPS guidance range to $2.50 to $2.65, from prior guidance of $2.40 to $2.65 given strong first quarter results; Revised full-year guidance range reflects 6% to 12% growth in adjusted EPS over the prior year CLEVELAND – May 7, 2024 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable materials solutions, today announced its first quarter results for 2024. Eastern Time on May 7, 2024. Webcast Details Avient will host a webcast on Tuesday, May 7, 2024 at 8:00 a.m.

Seller has based any recommendations to Buyer upon information that Seller considers reliable, but Seller makes no warranty as to any results Buyer might obtain in Buyer’s use(s) for the Product. Thereafter, Buyer automatically approves the invoice. 7. Därefter anses Köparen automatiskt ha godkänt fakturan. 7.

A L R T 2 0 17 A N N U A L R E P O R T 2 0 1 7 C R E AT I N G A WO R L D - C L A S S , S U S TA I N A B L E O R G A N I Z AT I O N PolyOne Corporation (NYSE: POL), with 2017 revenues of $3.2 billion, is a premier provider of specialized polymer materials, services and solutions. Statesville, North 7. Barbastro, Spain 7.  

Louis, Missouri Jersey 5.La Mirada, Tennessee 4.Gaggenau, Germany 5.Sullivan, Missouri 5.Statesville, North California 7.Pasadena, Texas 5.Istanbul, Turkey 6.Massillon, Ohio Carolina 6.Manitowoc, 8.Seabrook, Texas 6.Barbastro, Spain 7.Norwalk, Ohio 6.Elyria, Ohio Wisconsin 9.Orangeville, Ontario, 7.Melle, Germany 8.North Baltimore, 7.La Porte, Texas 7.McMinnville, Canada 8 & 9. s/ ROBERT M. s/ Robert M.

Garratt — 2,289 (1) 183,137 (1) 366,274 (1) — — — — — — 19,750 (2) 158,000 (2) 316,000 (2) — — — — — 2/22/2024 — — — 6,867 (2) 20,600 (2) — 39.27 254,580 7/22/2024 — — — (4) (4) — 39.27 271,822 7/22/2024 — — — (4) (4) 42.93 73,607 7/22/2024 — — — (4) (4) — 52.64 12,035 2/22/2024 — — — — — 6,400 (6) — 251,328 7/22/2024 — — — — — (7) — 253,779 7/22/2024 — — — — — (7) — 137,257 7/22/2024 — — — — — (7) — 41,150 Estimated Future Payouts Under Non-Equity Incentive Plan Awards (columns (c), (d) and (e)) (1) 2024 Annual Incentive Program Opportunities. 7) Modification of RSUs in Connection with Retirement. Our Purpose and Strategic Framework Director Nominees Governance Highlights 7.

Statesville, North 7. Dyersburg, Tennessee   7. Milan, Italy   7. 

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: 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/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 page=19 7 Quality Management 3rd Party Certifications All manufacturing facilities are certified to the ISO 9001 standard. The record retention period for these records is seven (7) years.

Patterson President and Chief Executive Officer PolyOne Corporation Page 6 PolyOne Corporation Page 7 Robert M. S&P 500 PolyOne Corporation Page 14 Well Positioned for Accelerated Growth $40 billion of market potential • Megatrends favor our solutions $1.9 billion of opportunities in our specialty innovation pipeline • Increased $200m from a year ago 44% of Specialty products introduced in the last 5 years World class leadership team drives next phase of specialty transformation: From Gold to Platinum PolyOne Corporation Page 15 Global Color, Additives & Inks John V. S&P 500 -100% 200% 300% 400% 500% 600% POL S&P 500 PolyOne Corporation Page 85 Formula for Success Innovation Market Beating Performance Excellence in Execution PolyOne Corporation Page 86 Track Record of Successful Acquisitions $12 $50 2007 2014 $22 $39 2012 2014 $24 $69 2012 2014 GLS ColorMatrix Spartech OI in $ millions PolyOne Corporation Page 87 Driving Toward Premier Profitability EBIT Margins for top tier companies Victrex 41% 18% Albemarle Eastman 17% Hexcel 17% FMC 16% Ecolab 14% 12% Specialty EBIT Margin – 2014 IFF 19% Celanese 13% PolyOne Corporation Page 88 2006 2014 2020 “Where we were” “Where we are” Platinum Vision Operating Income % Specialty: Global Color, Additives & Inks 1.7% 14.7% 20%+ Global Specialty Engineered Materials 1.1% 12.1% 20%+ Designed Structures & Solutions 1.4%(2012) 7.3% 12 – 14% Performance Products & Solutions 5.5% 7.7% 10 – 12% Distribution 2.6% 6.1% 6.5 – 7.5% Specialty Platform % of Operating Income 6.0% 65% 80%+ ROIC 5.0% 11.3% 15% Adjusted EPS Growth N/A 37% Double Digit Expansion 2020 Platinum Vision PolyOne Corporation Page 89 Platinum Vision: Pathway to Accelerated Growth Organic Sales Growth Margin Expansion Share Repurchases Acquisitions PolyOne Corporation Page 90 2006 2010 2014 2020 Driving Toward a Premium Specialty Multiple 6x 4x Commodity POL 8x Hybrid 10x 14x+ Mid-Tier Specialty Premium Specialty M ul tip le POL POL POL PolyOne Corporation Page 91 The New PolyOne: A Specialty Growth Company Why Invest In PolyOne?