With our hardware fabrication capabilities and Avient’s knowledge of composite ballistic protection technology, we were able to create modular systems that reduce time and logistic requirements for our brave soldiers.” 1 https://www.erdc.usace.army.mil/Missions/Military-Engineering/Deployable-Force-Protection-Demo/ To learn more about ballistic resistant solutions from Avient, visit avient.com or click to request a quote. SOLID FOUNDATIONS: SAFETY FIRST © 2024, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 https://www.erdc.usace.army.mil/Missions/Military-Engineering/Deployable-Force-Protection-Demo/ www.avient.com https://www.avient.com/content/ballistic-panel-quote-request-form

Our filings are available to the public at the SEC’s website at http://www.sec.gov. s/ ROBERT M. s/ Robert M.

Onus Managing Director DEKRA Certification, Inc. 1945 The Exchange SE #300 Atlanta, GA 30339 USA (215) 997-4519 https://www.dekra.us/en/audits/ DEKRA Certification Inc. is an accredited Aerospace Registration Management Program Certification Body, under the ICOP scheme. https://www.dekra.us/en/audits/

https://www.avient.com/products/polymer-colorants/colorant-dispersions https://www.avient.com/products/vinyl-formulations/vinyl-plastisols-organosols/core-vinyl-plastisols

https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/maxxam-polyolefin https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/maxxam-polyolefin Denso

 Addressable market exceeds $40 billion  Strong performance demonstrates that our strategy and execution are working  Megatrends and emerging opportunities align with strengths  Innovation and services provide differentiation, incremental pricing power and competitive advantage  Strong and proven management team driving growth and performance 21 POLYONE CORPORATION Segment Highlights POLYONE CORPORATION 22 2015 Revenue: $0.8 Billion At a Glance: Color, Additives & Inks Key Applications 2015 Revenue by Industry Expanding Profits 1.7% 4.6% 5.1% 5.5% 7.2% 8.1% 9.7% 12.2% 14.7% 16.7% 17.0% 20%+ 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2020 Operating Income % of Sales Platinum Vision United States 48% Europe 33% Asia 12% Latin America 5% Canada 2% Packaging 31% Industrial 13% B & C 11% W & C 11% Transportation 9% Consumer 8% Textiles 8% Healtchare 6% Appliances 2% E & E 1% POLYONE CORPORATION 23 2015 Revenue: $0.5 Billion At a Glance: Specialty Engineered Materials 2015 Revenue by Industry Expanding Profits 1.1% 1.3% 3.4% 5.1% 9.6% 8.0% 8.6% 9.3% 12.1% 14.7% 15.2% 20%+ 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2020 Operating Income % of Sales Platinum Vision Consumer 20% Transportation 19% E & E 16% W & C 15% Healthcare 11% Industrial 8% Packaging 5% Appliances 3% B & C 3% United States 49% Europe 29% Asia 20% Canada 2% Key Applications POLYONE CORPORATION 24 2015 Revenue: $0.5 Billion At a Glance: Designed Structures & Solutions 2015 Revenue by Industry Expanding Profits 1.4% 5.6% 7.3% 3.0% 8-10% 0.3% 2012 2013 2014 2015 2016 YTD 2020 Operating Income % of Sales Platinum Vision Transportation 33% Industrial 24% Packaging 19% B & C 9% Healthcare 7% Consumer 5% Appliances 3% United States 97% Canada 3% Key Applications http://www.google.com/url? sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&uact=8&ved=0CAcQjRw&url=http://www.mullerquaker.com/products/greek100/greek100-peach-and-passion-fruit&ei=-acYVZq7EIqwyASDjYL4CA&bvm=bv.89381419,d.cWc&psig=AFQjCNGNCQY1_dCN2RPLzxtap_Pu0omTXQ&ust=1427765484498432 POLYONE CORPORATION 25 2015 Revenue: $0.7 Billion At a Glance: Performance Products & Solutions 2015 Revenue by Industry Expanding Profits 5.5% 6.9% 3.8% 3.6% 5.5% 4.3% 6.3% 7.2% 7.7% 8.3% 12-14% 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2020 Operating Income % of Sales Platinum Vision 11.6% B & C 31% Transportation 19% W & C 16% Industrial 13% Appliances 7% Consumer 5% Packaging 5% E & E 3% Healthcare 1% United States 79% Canada 14% Latin America 5% Asia 2% Key Applications POLYONE CORPORATION 26 2015 Revenue: $1.0 Billion At a Glance: Distribution Key Suppliers ROIC Expanding Profits 2.6% 3.0% 3.5% 4.0% 4.6% 5.6% 6.4% 5.9% 6.1% 6.6% 6.5-7.5% 6.6% 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2020 Operating Income % of Sales Platinum Vision 15% 53% 2006 3Q 2016 Transportation 24% Healthcare 23% Industrial 16% Consumer 13% E & E 6% Appliances 6% W & C 4% Packaging 4% B & C 4% http://www.avient.com/Pages/VariationRoot.aspx 27 POLYONE CORPORATION Application Examples POLYONE CORPORATION 28 Luxury Packaging with Gravitech Density Modified Polymers  Impart weight, sound and metallic finish to caps and closures for cosmetics and spirits applications  Elevate quality and prestige perceptions among high-end consumers  Eliminate time and cost associated with secondary operations and assembly POLYONE CORPORATION 29 Medical Device Housings with Chemically Resistant Engineered Polymers  Durable, long-lasting products stand up to the most aggressive disinfectants  Minimize environmental stress cracking and discoloration  One of the broadest medically approved polymer and colorant portfolios POLYONE CORPORATION 30 Printed Circuit Boards with Thermally Conductive Polymers  Replaces 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 31 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 32 Outdoor Applications  Leading provider of high performance specialty materials for the recreational and sports & leisure industry  Well positioned across all segments to address market needs  Metal to Polymer Conversion  Lightweighting  Thermal Management  Impact Performance Source: Outdoor Industry Association POLYONE CORPORATION 33 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 solid masterbatch POLYONE CORPORATION 34  Improve performance and reduce cost through light-weighting, reduced waste, faster cycle times and extended shelf life  Aligned with megatrend of facing climate and resource challenges:  Sustainability benefits include lower package weight and improved recyclability of package at end of use Shelf-life extension Greater product consistency Recyclability and reduced carbon footprint Color and Special Effects Weight reduction Enhanced product aesthetics High heat resistance Preservative Technology POLYONE CORPORATION 35 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  Simplifies manufacturing and lowers total production cost POLYONE CORPORATION 36 High-Barrier Packaging Containers  Capability to extrude up to 13 layers  Strong oxygen and moisture vapor transmission protection  Can be made symmetrical or asymmetrical to meet customized needs of broad variety of applications  Barrier protection and superior sensory properties 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.

 Addressable market exceeds $40 billion  Strong performance demonstrates that our strategy and execution are working  Megatrends and emerging opportunities align with strengths  Innovation and services provide differentiation, incremental pricing power and competitive advantage  Strong and proven management team driving growth and performance 21 POLYONE CORPORATION Segment Highlights POLYONE CORPORATION 22 2015 Revenue: $0.8 Billion At a Glance: Color, Additives & Inks Key Applications 2015 Revenue by Industry Expanding Profits 1.7% 4.6% 5.1% 5.5% 7.2% 8.1% 9.7% 12.2% 14.7% 16.7% 17.0% 20%+ 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2020 Operating Income % of Sales Platinum Vision United States 48% Europe 33% Asia 12% Latin America 5% Canada 2% Packaging 31% Industrial 13% B & C 11% W & C 11% Transportation 9% Consumer 8% Textiles 8% Healtchare 6% Appliances 2% E & E 1% POLYONE CORPORATION 23 2015 Revenue: $0.5 Billion At a Glance: Specialty Engineered Materials 2015 Revenue by Industry Expanding Profits 1.1% 1.3% 3.4% 5.1% 9.6% 8.0% 8.6% 9.3% 12.1% 14.7% 15.2% 20%+ 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2020 Operating Income % of Sales Platinum Vision Consumer 20% Transportation 19% E & E 16% W & C 15% Healthcare 11% Industrial 8% Packaging 5% Appliances 3% B & C 3% United States 49% Europe 29% Asia 20% Canada 2% Key Applications POLYONE CORPORATION 24 2015 Revenue: $0.5 Billion At a Glance: Designed Structures & Solutions 2015 Revenue by Industry Expanding Profits 1.4% 5.6% 7.3% 3.0% 8-10% 0.3% 2012 2013 2014 2015 2016 YTD 2020 Operating Income % of Sales Platinum Vision Transportation 33% Industrial 24% Packaging 19% B & C 9% Healthcare 7% Consumer 5% Appliances 3% United States 97% Canada 3% Key Applications http://www.google.com/url? sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&uact=8&ved=0CAcQjRw&url=http://www.mullerquaker.com/products/greek100/greek100-peach-and-passion-fruit&ei=-acYVZq7EIqwyASDjYL4CA&bvm=bv.89381419,d.cWc&psig=AFQjCNGNCQY1_dCN2RPLzxtap_Pu0omTXQ&ust=1427765484498432 POLYONE CORPORATION 25 2015 Revenue: $0.7 Billion At a Glance: Performance Products & Solutions 2015 Revenue by Industry Expanding Profits 5.5% 6.9% 3.8% 3.6% 5.5% 4.3% 6.3% 7.2% 7.7% 8.3% 12-14% 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2020 Operating Income % of Sales Platinum Vision 11.6% B & C 31% Transportation 19% W & C 16% Industrial 13% Appliances 7% Consumer 5% Packaging 5% E & E 3% Healthcare 1% United States 79% Canada 14% Latin America 5% Asia 2% Key Applications POLYONE CORPORATION 26 2015 Revenue: $1.0 Billion At a Glance: Distribution Key Suppliers ROIC Expanding Profits 2.6% 3.0% 3.5% 4.0% 4.6% 5.6% 6.4% 5.9% 6.1% 6.6% 6.5-7.5% 6.6% 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2020 Operating Income % of Sales Platinum Vision 15% 53% 2006 3Q 2016 Transportation 24% Healthcare 23% Industrial 16% Consumer 13% E & E 6% Appliances 6% W & C 4% Packaging 4% B & C 4% http://www.avient.com/Pages/VariationRoot.aspx 27 POLYONE CORPORATION Application Examples POLYONE CORPORATION 28 Luxury Packaging with Gravitech Density Modified Polymers  Impart weight, sound and metallic finish to caps and closures for cosmetics and spirits applications  Elevate quality and prestige perceptions among high-end consumers  Eliminate time and cost associated with secondary operations and assembly POLYONE CORPORATION 29 Medical Device Housings with Chemically Resistant Engineered Polymers  Durable, long-lasting products stand up to the most aggressive disinfectants  Minimize environmental stress cracking and discoloration  One of the broadest medically approved polymer and colorant portfolios POLYONE CORPORATION 30 Printed Circuit Boards with Thermally Conductive Polymers  Replaces 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 31 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 32 Outdoor Applications  Leading provider of high performance specialty materials for the recreational and sports & leisure industry  Well positioned across all segments to address market needs  Metal to Polymer Conversion  Lightweighting  Thermal Management  Impact Performance Source: Outdoor Industry Association POLYONE CORPORATION 33 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 solid masterbatch POLYONE CORPORATION 34  Improve performance and reduce cost through light-weighting, reduced waste, faster cycle times and extended shelf life  Aligned with megatrend of facing climate and resource challenges:  Sustainability benefits include lower package weight and improved recyclability of package at end of use Shelf-life extension Greater product consistency Recyclability and reduced carbon footprint Color and Special Effects Weight reduction Enhanced product aesthetics High heat resistance Preservative Technology POLYONE CORPORATION 35 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  Simplifies manufacturing and lowers total production cost POLYONE CORPORATION 36 High-Barrier Packaging Containers  Capability to extrude up to 13 layers  Strong oxygen and moisture vapor transmission protection  Can be made symmetrical or asymmetrical to meet customized needs of broad variety of applications  Barrier protection and superior sensory properties 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.

Softening demand conditions in the fourth quarter most heavily impacted the Performance Products and Solutions (PP&S) and Specialty Engineered Materials (SEM) segments. Specifically, end markets negatively impacting PP&S were building & construction and appliance.

This quarter, our Specialty Engineered Materials, Performance Products & Solutions (PP&S) and Distribution segments led the way, as all three achieved year-over-year increases in operating income." Underlying organic sales growth, plus contributions from the company's recently acquired businesses, offset lower year-over-year selling prices in Distribution, PP&S, and Designed Structures and Solutions (DSS), due to lower hydro-carbon based raw material costs.

The company noted customers are citing concerns over tariffs and persistent inflation as possible drivers of these demand conditions, which most heavily impacted the Performance Products and Solutions (PP&S) and Distribution segments.  If so, lower operating income from PP&S and Distribution could offset continued growth in Color, Additives & Inks and Engineered Materials in the fourth quarter.