More Sustainable Packaging with Collapsible Totes Learn about these efficient, safe and sustainability-enabling containers More New Life for Aging Pipe Learn how a pipe liner helped a major equipment manufacturer and customer extend the longevity of a piping system and reduce exposure to unsafe chemicals.

MAJORITY VOTING FOR DIRECTORS Our Corporate Governance Guidelines contain a policy relating to majority voting. 2) Based on information contained in a Schedule 13G/A filed by The Vanguard Group with the SEC on February 9, 2022. None of the agreements contain a single trigger or a modified single trigger for benefits.

Any additional, different or other terms and/or conditions contained in any purchase order, document, website, or other communication by or from Buyer are hereby objected to and rejected by Seller. もし売主がデ ィスカウントを提供する場合には、当該ディスカウント は、売主の注文確認書に記載されている本製品の数 5 contained in Seller’s order confirmation) are estimates only and are not terms of the sale. Buyer acknowledges that Seller has furnished to Buyer Safety Data Sheets, which include warnings together with safety and health information concerning the Product and/or the containers for such Product.

AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) N OV E M B E R 2 0 2 3 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995.

AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) AU G U S T 2 0 2 2 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995.

Microsoft PowerPoint - AVNT June IR Conferences_6.1.2023 1130AM AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) J U N E 2 0 2 3 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995.

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All Rights Reserved 2025 2 Disclaimer Forward-looking statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995.

 Addressable market exceeds $40 billion St f d t t th t t t d ti Strong performance demonstrates that our strategy and execution are working  Megatrends and emerging opportunities align with our strengths  Innovation and services provide differentiation, incremental pricing power, and competitive advantage  Strong and proven management team driving growth and performance The New PolyOne: A Specialty Growth Company g p g g g p PolyOne Corporation Page 21 The New PolyOne: A Specialty Growth Company Appendix PolyOne Corporation Page 22 2Q 2016 Financial Highlights  Performance Products & Solutions operating margin grew 370 basis $18 $16 $21 $22 PP&S Operating Profit points year-over-year to 12.3% $11 $16 $10 $14 SEM O ti P fit  SEM operating margin expanded 50 basis points to a record second $19 $20 $21 $22 SEM Operating Profit Adjusted EPS quarter level of 14.9% $13 $10 $14 $0.37 $0.51 $0.57 $0.63 $0.45 $0.70 Adjusted EPS  Second quarter adjusted EPS has grown on average 20% per year PolyOne Corporation Page 23 $0.30 $ since 2012 Note: $ in millions, except per share data Color, Additives and Inks 2015 Revenues: $0.8 Billion Solutions 48% 33% 16.7% 18.0% 20%+Operating Income % of Sales Expanding Profits2015 Revenue by Industry Segment Textiles 4.6% 5.1% 5.5% 7.2% 8.1% 12.2% Building & C i PolyOne Corporation Page 24 Electrical & 1% Specialty Engineered Materials 2015 Revenues: $0.5 Billion Solutions 49%49% 29% 14.7% 14.9% 20%+Operating Income % of Sales 2015 Revenue by Industry Segment Expanding Profits 19% 1.1% 1.3% 3.4% 5.1% 9.6% 8.0% 8.6% 9.3% 12.1%Building & Electrical & PolyOne Corporation Page 25 Designed Structures and Solutions Solutions2015 Revenues: $0.5 Billion 97% 8-10% Operating Income % of Sales Expanding Profits2015 Revenue by Industry Segment Packaging 19% 1.4% 5.6% 7.3% 3.0% 1.0%Building & Construction Industrial 24% Transportation 33% PolyOne Corporation Page 26 2012 2013 2014 2015 2Q'16 2020 Appliances, Construction Performance Products and Solutions Solutions2015 Revenues: $0.7 Billion 79% CanadaCanada 5% Transportation 19% Wire & Cable 12-14% Operating Income % of Sales Expanding Profits 12.3% 2015 Revenue by Industry Segment Building & Electrical & El t i 1% % 5.5% 6.9% 3.8% 3.6% 5.5% 4.3% 6.3% 7.2% 8.3%7.7% PolyOne Corporation Page 27 Distribution Key Suppliers2015 Revenues: $1.0 Billion 24% Building & 4%Consumer 13%Healthcare Electrical & 23% 6 6% 6.5-7.5% 6 5% Operating Income % of Sales53% ROIC Expanding Profits 2.6% 3.0% 3.5% 4.0% 4.6% 5.6% 6.4% 5.9% 6.6% 6.5% 6.1% PolyOne Corporation Page 28 2006 2Q 2016 Platinum Plastics: Key to Future Sustainable Development 2 lbs Plastic = 3 lbs aluminum Requires 91% less energy to  recycle a pound of plastic versus  a pound of paper3 lbs aluminum 8 lbs steel a pound of paper 27 lbs glass 33% less material by weight  than aluminum 75% less material by weight75% less material by weight  than steel 93% less material by weight  than glass PolyOne Corporation Page 29 than glass Source: SPI: Sustainability and the Plastics Industry Application Examples PolyOne Corporation Page 30 Luxury Packaging with Gravitech Density Modified Polymers • Impart weight, sound and  metallic finish to caps andmetallic finish to caps and  closures for cosmetics and  spirits applications • Elevate quality and prestige  perceptions amongperceptions among  high‐end consumers • Eliminate time and cost  associated with secondary  operations and assembly PolyOne Corporation Page 31 p y Medical Device Housings with Chemically Resistant Engineered Polymers • Durable, long‐lasting products  stand up to the most  aggressive disinfectants • Minimize environmental stress  cracking and discolorationg • One of the broadest medically y approved polymer and  colorant portfolios PolyOne Corporation Page 32 Printed Circuit Boards with Thermally Conductive Polymers • Replaces metal by etchingReplaces metal by etching  circuit designs into thermally  conductive plastic • Maintains heat transfer and  cooling capabilities of metals • Reduces both weight and cost • Increases the lifetime and  reliability of electronic systems PolyOne Corporation Page 33 Color & Design Services • Greater control of color  development and supply chain • Work across entire design  process from concept to  commercialization • Inspire creativity in the use of    polymer materials, colors                 and effects • Innovative brand differentiation • Faster development timelines PolyOne Corporation Page 34 • Faster development timelines Outdoor Applications • Leading provider of high  performance specialty materials for the recreational and sports & p leisure industry • Well positioned across all segments  to address market needs  Metal to Polymer Conversion  Lightweighting  Thermal Management  Impact Performance PolyOne Corporation Page 35 Source: Outdoor Industry Association Fiber Colorants Solutions for clothing, apparel, footwear, automotive & sporting goods • ColorMatrix Fiber Colorant Solutions Proprietary advanced liquid color  formulations and equipment enable   greater efficiency and productivity Eliminates aqueous dyeing and its  associated wastewater treatment • Solid Color Concentrates Extrusion spun fibers colored viaExtrusion‐spun fibers colored via  solid masterbatch PolyOne Corporation Page 36 PET Bottling Technology • $1.5 billion attractive, growing market  Shelf‐life  extension Weight  reduction • Improve performance and reduce cost through light‐weighting,  d d t f t l ti Greater product  consistency l b l Enhanced product  aesthetics reduced waste, faster cycle times  and extended shelf life Recyclability and  reduced carbon  footprint aesthetics High heat • Aligned with megatrend of facing  climate and resource challenges: Color and Special Effects High heat resistance Sustainability benefits include  lower package weight and  improved recyclability of package  at end of use PolyOne Corporation Page 37 at end of use  Metal Replacement Solutions • Replaces metal in LED lighting • Extends LED durability and life  span eliminating hot spots • Greater design flexibility with  fewer parts • Weight reduction l f f d• Simplifies manufacturing and  lowers total production cost PolyOne Corporation Page 38 High-Barrier Packaging Containers • Capability to extrude up to 13 layers• Capability to extrude up to 13 layers • Strong oxygen and moisture vapor  transmission protectiontransmission protection • Can be made symmetrical or  asymmetrical to meet customizedasymmetrical to meet customized  needs of broad variety of applications • Barrier protection and superiorBarrier protection and superior  sensory properties PolyOne Corporation Page 39 1 Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data) Below is a reconciliation of non-GAAP financial measures to the most directly comparable measures calculated and presented in accordance with U.S.