STOCK PERFORMANCE PolyOne’s stock performance has significantly outpaced the S&P 500 index and the S&P Mid Cap Chemicals index. 12.31.09 12.31.10 12.31.11 12.31.12 12.31.13 12.31.14 12.31.15 12.31.16 OPERATING INCOME % OF SALES Color, Additives & Inks Specialty Engineered Materials PP&S Distribution Designed Structures & Solutions 2006 “Where we were” 1.7% 1.1% 5.5% 2.6% N/A 2016 “Where we are” 16.0% 14.3% 11.1% 6.4% -0.9% 2020 Platinum Vision 20% + 20% + 12–14% 6.5–7.5% 8–10% 500 400 300 200 100 0 P E R C E N TA G E POL S&P MID CAP CHEMICALS S&P 500 A N N U A L D IV ID E N D $ /S H A R E RETURNING CASH TO SHAREHOLDERS .50 .40 .30 .20 .10 5+30+36+45+59+80+88+95 2.20 2.00 1.80 1.60 1.40 1.20 1.00 .80 .60 .40 .20 0 ADJUSTED EARNINGS PER SHARE*^ U .S . These monomers are then polymerized into chains called polymers, or plastic resin, such as polyethylene and polypropylene, in their most basic forms. The major types of thermoplastics include polyethylene, polyvinyl chloride, polypropylene, polystyrene, polyester and a range of specialized engineering resins.

STOCK PERFORMANCE PolyOne’s stock performance has significantly outpaced the S&P 500 index and the S&P Mid Cap Chemicals index. 12.31.09 12.31.10 12.31.11 12.31.12 12.31.13 12.31.14 12.31.15 Operating Income % Specialty Color, Additives & Inks Specialty Engineered Materials Designed Structures & Solutions PP&S Distribution Specialty Platform Operating Income % of Total ROIC** (after-tax) Adjusted EPS Growth 2006 “Where we were” 1.7% 1.1% — 5.5% 2.6% 6.0% 5.0% N/A 2015 “Where we are” 16.7% 14.7% 3.0% 8.3% 6.6% 65% 11.8% 25 Consecutive Quarters of YOY EPS Growth 2020 Platinum Vision 20% + 20% + 12–14% 10–12% 6.5–7.5% 80% + 15% Double Digit Expansion **ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period 500 400 300 200 100 0 P ER CE NT AG E POL S&P MID CAP CHEMICALS S&P 500 ANNUAL REPORT 2015 SPECIALTY DISTRIBUTION PP&S JV’S % O F O PE RA TI NG IN CO M E 2005 2007 2009 2011 2013 2015 OPERATING INCOME MIX SHIFT*^ 100 80 60 40 20 0 100+100+100+100+10050+77+80+97+100+10010+32+53+82+82+841+18+34+51+61+64 *Operating Income excludes Corporate charges and special items ^2005–2009 has not been restated for subsequent changes in accounting principles or discontinued operations +5 +33 +41 +50 +65 +90 +98 2.00 1.80 1.60 1.40 1.20 1.00 .80 .60 .40 .20 0 2009 2010 2011 2012 2013 2014 2015 ADJUSTED EARNINGS PER SHARE ◊† U. These monomers are then polymerized into chains called polymers, or plastic resin, such as polyethylene and polypropylene, in their most basic forms. The major types of thermoplastics include polyethylene, polyvinyl chloride, polypropylene, polystyrene, polyester and a range of specialized engineering resins.

These monomers are then polymerized into chains called polymers, or plastic resin, such as polyethylene and polypropylene, in their most basic forms. The major types of thermoplastics include polyethylene, polypropylene, polystyrene, polyester and a range of specialized engineering resins. We also have what we believe is the broadest composite platform of solutions, which 61 AVIENT CORPORATION include a full range of thermoset and thermoplastic composites, reinforced with glass, carbon, aramid, and ultrahigh molecular weight polyethylene fibers.

We offer a full range of material solutions for photovoltaic wire and cable that enable renewable energy infrastructure, including Syncure™ Crosslinked Polyethylene Formulations, which provide high- performance, UL 4703 and VW 1-compliance and eliminate the need to use two separate insulation and jacketing formulations. HOME | Contents | Message from the CEO | Who We Are | People | Products | Planet | Performance | Metrics | IndexHOME | Contents | Message from the CEO | Who We Are | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2021 48 https://www.avient.com/products/engineered-polymer-formulations/flame-retardant-formulations/syncure-crosslinked-polyethylene-formulations https://www.avient.com/products/engineered-polymer-formulations/flame-retardant-formulations/syncure-crosslinked-polyethylene-formulations https://www.avient.com/products/polymer-colorants/color-additive-combination-masterbatches/smartbatch-color-additive-concentrates https://www.avient.com/products/engineered-polymer-formulations/eco-conscious-formulations/eccoh-cross-linkable-solutions https://www.avient.com/products/engineered-polymer-formulations/eco-conscious-formulations/eccoh-cross-linkable-solutions https://www.avient.com/products/advanced-composites/pultrusion-and-continuous-filament-winding-technology/glasforms-pultruded-rods-tubes-custom-profiles https://www.avient.com/products/polymer-additives/performance-enhancement-additives/cesa-ir-additives 5G as a Sustainability Enabler The need for better, faster and more reliable technology is stronger than ever. 5G, fiber optic cabling components and other network supporting infrastructure have been crucial in the response and recovery.

Initiative category & Initiative type Energy efficiency in buildings Heating, Ventilation and Air Conditioning (HVAC) Estimated annual CO2e savings (metric tonnes CO2e) 21 Scope(s) Scope 2 (location-based) Scope 2 (market-based) Voluntary/Mandatory Voluntary Annual monetary savings (unit currency – as specified in C0.4) 4,200 Investment required (unit currency – as specified in C0.4) 400 Payback period 30 years Comment This represents an aggregate of all HVAC projects implemented in 2020.

These monomers are then polymerized into chains called polymers, or plastic resin, such as polyethylene and polypropylene, in their most basic forms. The major types of thermoplastics include polyethylene, polyvinyl chloride, polypropylene, polystyrene, polyester and a range of specialized engineering resins.

Whether they need vinyl, color concentrates, manufacturing & production services, crosslinked polyethylene, halogen-free or other specialty materials, we have the polymer solutions and services that will streamline projects and meet challenges.

We now have what we believe to be the strongest portfolio offering in the history of the company with 100% of sales now being generated from specialty applications. 2022 Company highlights include: • Completed the acquisition of the DSM Protective Materials business ("APM"), including the Dyneema® brand, the World's Strongest Fiber™ (the "APM Acquisition"); • Completed the sale of our Distribution business for $950.0 million; • Full-year GAAP EPS from continuing operations was $0.90 in 2022, compared to $1.65 in 2021; • Increased pro forma adjusted EPS from continuing operations from $3.02 in 2021 (pro forma for the APM Acquisition and the sale of our Distribution business) to $3.04(1) in 2022; • Strong working capital performance to finish the year resulted in cash flow from operations of approximately $400 million for 2022; • Generated approximately $290 million(1) of free cash flow, paid down $950 million of debt and ended the year with a net debt-to-EBITDA leverage ratio of 2.9x(1); • Increased our dividend on an annualized basis by 4% to $0.99; the 12th consecutive year of annual increase; • Our injury incident rate was 0.51 (per 100 full-time workers per year) compared to the industry average of 3.40 in 2021; • Certified again as an ACC Responsible Care® organization for outstanding environmental, health, safety and security performance; and • Continued our journey of improving our culture: received our 4th certification as a Great Place to Work® by the Great Place to Work Institute, and the highest scores in the Company's history. (1) Adjusted EPS, Adjusted EPS pro forma for the APM Acquisition and the sale of our Distribution business, free cash flow, and net debt-to-EBITDA leverage ratio are financial measures that are not presented in accordance with generally accepted accounting principles ("GAAP"). We now have what we believe to be the COMPENSATION DISCUSSION AND ANALYSIS 60 PROXY STATEMENT 2023 | Annual Meeting of Shareholders strongest portfolio offering in the history of the company with 100% of sales now being generated from specialty applications. 2022 Company performance highlights include: • Completed the acquisition of the DSM Protective Materials business ("APM"), including the Dyneema® brand, the World's Strongest Fiber™ (the "APM Acquisition"); • Completed the sale of our Distribution business for $950.0 million; • Full-year GAAP EPS from continuing operations was $0.90 in 2022, compared to $1.65 in 2021; • Increased pro forma adjusted EPS from continuing operations from $3.02 in 2021 (pro forma for the APM Acquisition and the sale of our Distribution business) to $3.04(1) in 2022; • Strong working capital performance to finish the year resulted in cash flow from operations of approximately $400 million for 2022; • Generated approximately $290 million(1) of free cash flow, paid down $950 million of debt and ended the year with a net debt-to-EBITDA leverage ratio of 2.9x(1); • Increased our dividend on an annualized basis by 4% to $0.99; the 12th consecutive year of annual increase; • Our injury incident rate was 0.51 (per 100 full-time workers per year) compared to the industry average of 3.40 in 2021; • Certified again as an ACC Responsible Care® organization for outstanding environmental, health, safety and security performance; and • Continued our journey of improving our culture: received our 4th certification as a Great Place to Work® by the Great Place to Work Institute, and the highest scores in the Company's history. (1) Adjusted EPS, Adjusted EPS pro forma for the APM Acquisition and the sale of our Distribution business, free cash flow, and net debt-to-EBITDA leverage ratio are financial measures that are not presented in accordance with GAAP. Because Covered Years are presented in the table in reverse chronical order (from top to bottom), the table should be read from bottom to top for purposes of understanding cumulative returns over time. (4) For purposes of this pay versus performance disclosure, our peer group is the S&P 400 Chemicals index.

These monomers are then polymerized into chains called polymers, or plastic resin, such as polyethylene and polypropylene, in its most basic form. The major types of thermoplastics include polyethylene, polyvinyl chloride, polypropylene, polystyrene, polyester and a range of specialized engineering resins.

These monomers are then polymerized into chains called polymers, or plastic resin, such as polyethylene and polypropylene, in their most basic forms. The major types of thermoplastics include polyethylene, polypropylene, polystyrene, polyester and a range of specialized engineering resins.