We partner with Brand Owners / OEMs, processors and assemblers to enable their goals in applications like packaging, healthcare, consumer goods, transportation, wire & cable, building & construction and textiles. Global Compact & fulfilled Communication of Progress (COP) requirements • New Sustainability Strategy overview page including our 2022 AIP ESG metrics • New ESG Performance page with ESG ratings, awards, and certifications • Increased disclosures on carbon emissions, including disclosure of Climate Change Scenario Analysis • Added new Product Stewardship and Chemical Management policies • Enhanced data reporting for Workforce Demographics • Improved social disclosures on human rights, dependent care and special leave and strategic training management 2021 SUSTAINABILITY REPORT Launching integrated sustainability website in parallel with report Aligned with leading reporting frameworks 6 Released July 2022 ESG RATINGS PERFORMANCE ESG AWARDS AND CERTIFICATIONS ESG PERFORMANCE & AWARDS 84th 3 1 2 7 T RAN S FO R MAT IO NAL OVE RV IE W Avient Protective Dyneema ® RECENT TRANSACTIONS Acquired Divested $1.45 B $0.95 B 9 Distribution UPDATED CAPITAL STRUCTURE & LIQUIDITY • Proceeds from completed sale of Distribution used to pay near-term maturing debt to strengthen balance sheet • Fixed/floating debt ratio of ~55/45 • Proven track record of deleveraging following major acquisitions through strong free cash flow generation • 2022 pro forma net debt/adjusted EBITDA expected to be 3.1x $725 $725 $575 $500 $600 $525 $650 $650 $600 Capital Structure Cas h $544 Undr awn Rev olve r $250 Liquidity $3.15B $2.40B 2030 Notes 2029 Term Loan 2026 Term Loan 2025 Notes 2023 Notes After Dyneema Acquisition After Distribution Divestiture $794M (1) $250M reflects estimated undrawn revolver following the divestiture of Distribution 10 PREVIOUS TRANSACTIONS Performance Solutions Products & $0.8 B COLOR $1.4 B Acquired (2020)Divested (2019) 11 • Acquisition of Clariant Color business significantly expanded presence in healthcare, packaging and consumer end markets • Strength of portfolio – double-digit annual EBITDA growth since acquisition • $75 million of realized synergies anticipated in 2022 • Acquisition completed on July 1, 2020 for $1.45 billion.

Use of Non-GAAP Measures Page 3 PolyOne Commodity to Specialty Transformation • Volume driven, commodity producer • Heavily tied to cyclical end markets • Performance largely dependent on non- controlling joint ventures 2000-2005 2006 - 2009 2010 – 2014 2015 and beyond • Steve Newlin appointed, Chairman, President and CEO • New leadership team appointed • Implementation of four pillar strategy • Focus on value based selling, investment in commercial resources and innovation to drive transformation • 18 consecutive quarters of double- digit adjusted EPS growth • Shift to faster growing, high margin, less cyclical end markets • Key acquisitions propel current and future growth, as well as margin expansion • Established aggressive 2015 targets • Continue specialty transformation • Targeting $2.50 Adjusted EPS by 2015, nearly double 2013 EPS • Drive double digit operating income and adjusted EPS growth Page 4 2013 Revenues: $3.8 Billion End Markets 2013 Revenues: $3.8 Billion Page 5 PolyOne At A Glance United States 67% Europe 14% Canada 7% Asia Latin America Specialty 54% PP&S 18% Distribution 28% $13 $31 $46 $46 $92 $96 $122 $195 $0 $50 $100 $150 $200 2006 2007 2008 2009 2010 2011 2012 2013 Specialty Operating Income Building & Construction 13% Industrial 12% Transportation 18% Wire & Cable 9% Packaging 16% Consumer 10% HealthCare 11% Appliance Electronics & Electrical 5% Old PolyOne Transformation *Operating Income excludes corporate charges and special items 2% 34% 43% 62% 64% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2013 Q1 2014 2015 % o f O pe ra tin g In co m e* JV's Performance Products & Solutions Distribution Specialty 65-75% Specialty OI $5M $46M $87M $195M $60M Target Mix Shift Highlights Specialty Transformation 2015 Target Page 6 Confirmation of Our Strategy The World’s Premier Provider of Specialized Polymer Materials, Services and Solutions Specialization Globalization Operational Excellence Commercial Excellence Page 7 -150.00% -50.00% 50.00% 150.00% 250.00% 350.00% 450.00% 550.00% PolyOne S&P 500 Strategy and Execution Drive Results $0.12 $0.27 $0.21 $0.13 $0.68 $0.82 $1.00 $1.31 '06 '07 '08 '09 '10 '11 '12 '13 ‘06-‘13 EPS CAGR = 41% EPS Share Price vs. S&P 500 All time high of $39.55 May 13th, 2014 Page 8 2006 Q1 2014 2015 “Where we were” “Where we are” Target 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 13.8% 12 – 16% Global Specialty Engineered Materials 1.1% 11.6% 12 – 16% Designed Structures & Solutions -- 6.5% 8 – 10% Performance Products & Solutions 5.5% 7.7% 9 – 12% Distribution 2.6% 6.1% 6 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 64% 65 – 75% 3) ROIC* 5.0% 9.4% 15% 4) Adjusted EPS Growth N/A 42% Double Digit Expansion Proof of Performance & 2015 Goals *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period Page 9 Bridge to $2.50 Adjusted EPS by 2015 2015 EPS: $2.50 2013 EPS: $1.31 Continued Gross Margin Expansion Mergers & Acquisitions Spartech Accretion Incremental share buybacks Ongoing LSS Programs (50-100 bps/yr) Accelerated Innovation & Mix Improvement Several Levers to Drive Growth Mid single digit revenue CAGR Page 10 Innovation Drives Earnings Growth *Percentage of Specialty Platform revenue from products introduced in last five years Page 11 $20 $53 2006 2013 Research & Development Spending ($ millions) Specialty Platform Vitality Index Progression* 14.3% 30.7% 2006 2013 Specialty Platform Gross Margin % 19.5% 43.0% 2006 2013 Healthcare Consumer Packaging and Additive Technology Transportation Page 12 Unique and Innovative Solutions https://www.dropbox.com/sh/dwe4t8aacvhb8ui/uD3p_bdglP/Presentation revise pics/GLS Beverage can closure XO 2.jpg https://www.dropbox.com/sh/dwe4t8aacvhb8ui/-YgkycKypw/Anti-Counterfeiting release & images/GN1979.JPG 60% 100% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2008 2014 Pension Funding** As of March 31, 2014 Debt Maturities & Pension Funding – 3/31/14 Net Debt / EBITDA* = 1.9x $48 $317 $600 $0 $100 $200 $300 $400 $500 $600 $700 $800 2015 2020 2023 Debt Maturities As of March 31, 2014 ($ millions) Coupon Rates: 7.500% 7.375% 5.250% ** includes US-qualified pension plans only *TTM 3/31/2014 Page 13 Free Cash Flow and Strong Balance Sheet Fund Investment / Shareholder Return $0.16 $0.20 $0.24 $0.32 $0.10 $0.20 $0.30 $0.40 2011 2012 2013 2014 Annual Dividend  Expanding our sales, marketing, and technical capabilities  Targets that expand our: • Specialty offerings • End market presence • Geographic footprint • Operating Margin  Synergy opportunities  Adjacent material solutions  Repurchased 1.4 million shares in Q1 2014  Repurchased 6.4 million shares since April 2013  13.6 million shares are available for repurchase under the current authorization Organic Growth Acquisitions Share Repurchases Dividends  Investing in operational and LSS initiatives (including synergy capture) Manufacturing alignment Page 14 The New PolyOne: A Specialty Growth Company Why Invest In PolyOne?

We partner with Brand Owners / OEMs, processors and assemblers to enable their goals in applications like packaging, healthcare, consumer goods, transportation, wire & cable, building & construction and textiles. Global Compact & fulfilled Communication of Progress (COP) requirements • New Sustainability Strategy overview page including our 2022 AIP ESG metrics • New ESG Performance page with ESG ratings, awards, and certifications • Increased disclosures on carbon emissions, including disclosure of Climate Change Scenario Analysis • Added new Product Stewardship and Chemical Management policies • Enhanced data reporting for Workforce Demographics • Improved social disclosures on human rights, dependent care and special leave and strategic training management 2021 SUSTAINABILITY REPORT Launching integrated sustainability website in parallel with report Aligned with leading reporting frameworks 6 Released July 2022 ESG RATINGS PERFORMANCE ESG AWARDS AND CERTIFICATIONS ESG PERFORMANCE & AWARDS 84th 3 1 2 7 T RAN S FO R MAT IO NAL OVE RV IE W Avient Protective Dyneema ® RECENT TRANSACTIONS Acquired Divested $1.45 B $0.95 B 9 Distribution UPDATED CAPITAL STRUCTURE & LIQUIDITY • Proceeds from completed sale of Distribution used to pay near-term maturing debt to strengthen balance sheet • Fixed/floating debt ratio of ~55/45 • Proven track record of deleveraging following major acquisitions through strong free cash flow generation • 2022 pro forma net debt/adjusted EBITDA expected to be 3.1x $725 $725 $575 $500 $600 $525 $650 $650 $600 Capital Structure Cash $544 Undrawn Revolver $250 Liquidity $3.15B $2.40B 2030 Notes 2029 Term Loan 2026 Term Loan 2025 Notes 2023 Notes After Dyneema Acquisition After Distribution Divestiture $794M (1) $250M reflects estimated undrawn revolver following the divestiture of Distribution 10 PREVIOUS TRANSACTIONS Performance Solutions Products & $0.8 B COLOR $1.4 B Acquired (2020)Divested (2019) 11 • Acquisition of Clariant Color business significantly expanded presence in healthcare, packaging and consumer end markets • Strength of portfolio – double-digit annual EBITDA growth since acquisition • $75 million of realized synergies anticipated in 2022 • Acquisition completed on July 1, 2020 for $1.45 billion.

The collected material is processed into Social Plastic® feedstock for reuse in products and packaging by some of the world’s most advanced companies.

KEY CHARACTERISTICS • Formulated with 25–100% recycled resin from PIR & PCR sources • Reduces waste and supports the circular economy • Achieves equivalent performance to standard polyolefin formulations • Can be recycled at end of life • Provides good stiffness, durability, impact resistance and UV stability • Enables customized performance characteristics depending on application need MARKETS AND APPLICATIONS Maxxam REC Polyolefins are suitable for use across many industries and applications where traditional polyolefin materials are used, including: • Transportation - HVAC systems, engine guards, battery housings, flame retardant applications • Industrial - Structural parts, furniture • Consumer - Household appliances, personal care items, packaging, office supplies, food contact applications • Electrical and Electronic – Housings, buttons, junction boxes SUSTAINABILITY BENEFITS • Formulated with 25–100% recycled resin from PIR and/or PCR sources • Reduces waste and supports the circular economy • Reduces carbon footprint • Can be recycled at end of life PRODUCT BULLETIN CHARACTERISTICS UNITS Maxxam REC RS5200-5029 C BLACK X2 Maxxam REC MX5200-5036 HS I BLACK Maxxam REC MX5200-5037 Maxxam REC MX5200-5038 Maxxam REC MX5200-5039 Filler/ Reinforcement – Unfilled Unfilled 20% Mineral 40% Mineral 30% Glass Fiber Recycled Content – 95% PCR 97% PIR 75% PIR 55% PIR 65% PIR Density (ISO 1183) g/ccm 0.93 0.95 1.09 1.28 1.15 Tensile Modulus (ISO 527-1) MPa 1250 950 1500 2150 4250 Tensile Stress (ISO 527-2) MPa 25 175 10 15 50 Tensile Strain Break (ISO 527-2) % >20 >80 >30 17 4.5 Charpy Notched (ISO 179) kJ/m 3 8 5 4 11 TECHNICAL PERFORMANCE CHARACTERISTICS UNITS Maxxam REC RS5200-5026 RS NHFR BLACK 70 Maxxam REC FR H8 V2 BLACK RG 70 Maxxam REC L6 GF/30 H BLACK T RG 70 Maxxam REC MX5200-5027 RS HS BLACK RG Maxxam REC MX5200-5028 RS HS BLACK RG Maxxam REC C10 H-UV AS EP RG BLACK 70 Filler/ Reinforcement – 30% Glass Fiber Unfilled 30% Glass Fiber 30% Glass Fiber 40% Talcum Unfilled Recycled Content – 37% PIR 90% PIR 55% PIR 35% PIR 50% PIR 25% PIR Density (ISO 1183) g/ccm 1.42 0.950 1.13 1.15 1.23 1.03 Tensile Modulus (ISO 527-1) MPa 8250 1300 6100 6400 – 700 Tensile Stress (ISO 527-2) MPa 71.0 30.0 70.0 70.0 28.0 15.0 Notched Izod (ISO 180) kJ/m – 4.0 10 5.8 2.7 No Break Flame Rating @ 1.6mm thickness (UL 94) – V-0 V-2 HB HB HB HB TECHNICAL PERFORMANCE Copyright © 2023, Avient Corporation.

FEATURE BENEFIT • Liquid technology • More accurate dose control • Less variation in melt flow and product IV • Can be coupled to an on-line rheometer • Shorter transition times • Does not require pre-drying • Less dust • Higher IV in melt phase • Improved uniformity when replacing virgin PET in PCR sheet • Eliminate/reduce solid phase polymerization (rPET) • Increased use of post consumer flake or re-grind (Sheet) • Reduced brittleness, less breakages and scrap • More consistent melt flow • Reduced cost • Higher productivity • Cleaner working environment PROCESS HIGHLIGHTS • Higher productivity • Cleaner working environment • New product designs and applications • Improved shelf appeal PET SHEET • Increases final IV • Less variation in product IV • More consistent melt flow • Increased use of flake or regrind • Shorter transition times • Reduced scrap • Reduced dust • Improved impact strength • Improved low temperature performance • Improved aesthetics Information and photographs supplied by Sunwell Global Ltd • Higher productivity • Improved sustainability • Lighter weight, higher strength • Properties comparable to PS packaging • Recyclable PET MONO/MULTI LAYERED SHEET XPET FOAM SHEET ROUND DIE • Improved melt flow consistency • Improved IV consistency • Increased recycle content • Reduced rejects and scrap • Increased product strength • Improved low temperature performance • Increase final IV • Increased use of regrind • Impossible to start up without it • Faster product changeover • Easier to cut • Increased strength • Lighter weight • Good sealing ColorMatrix™ rePrize is a PET compatible formulated liquid dispersion, designed to increase the polymer chain length via reactive extrusion.

THE CHALLENGES Improving rPET Quality • Reduce yellowing, improve color and assure IV uniformity Enhancing Bottle Performance • Improve bottle strength, reduce acetaldehyde and minimize thread pulls & blowouts that cause high scrap rates Reducing Carbon Footprint • Reduce energy consumption and raw material usage while driving product efficiencies OUR SOLUTIONS Aligning our work with sustainability demands, we address those challenges for rPET producers, convertors and brand owners alike with technologies to improve both quality and performance, ensuring the recyclability of plastic packaging.

COLORANTS & ADDITIVES FOR HEALTHCARE Essential polymer solutions for critical healthcare applications WHEN MATERIAL EXPERTISE IS CRITICAL AESTHETIC APPEAL Regulatory compliant and approved masterbatch colors use custom polymer colorants to achieve any shade SPECIAL EFFECTS Enhance your brand and stand apart with pearlescent, metallic, iridescent, fluorescent or thermo-chromatic effects SOLID TO LIQUID SOLUTIONS Choose from a full range of available color solutions, from liquid color to solid product forms ANTIMICROBIALS Efficacy performance and regulatory requirements are met in a wide range of resins compatible with Withstand™ antimicrobial technology SURFACE ENERGY MODIFICATION Additive technologies such as low retention, hydrophobic, lubricious, light diffusion, or anti-stat provide desired surface manipulation Materials used for today’s medical devices, parts and pharmaceutical packaging contribute significantly to performance and, in turn, to a patient’s health and well-being.

Matrix Resin Fiber Reinforcement Fiber Content, by Weight (%) Epoxy E-CR or E-Glass >70% MATERIAL TECHNICAL DATA Property Test Procedure Rod Diameter 1.25 in (31.75 mm) 1.50 in (38.10 mm) Glass Transition Temp (Tg) ASTM 1356 100°C Minimum 100°C Minimum Water Absorption 24 hours at 50°C (122°F) ASTM D570 0.03% 0.03% Short Beam Strength (ILSS) ASTM 2344 8,400 psi (58 MPa) 9,200 psi (64 MPa) Transverse Shear Strength ASTM 7617 23,400 psi (160 MPa) 24,640 psi (170 MPa) Traceability Lot number shall be clearly marked on each package/shipment.

We partner with Brand Owners / OEMs, processors and assemblers to enable their goals in applications like packaging, healthcare, consumer goods, transportation, wire & cable, building & construction and textiles. We will do so though our investments and focus on sustainable solutions for high-growth markets, including healthcare, consumer, packaging and composites/5G. This innovation drives performance and is reflective of consistent, strategic investments in our portfolio…and people. 2020 Pro forma $991 $86 Sustainable Solutions 15 11% 6 Healthcare 28 22% 6 Composites 6 10% 3 Growth in Emerging Regions 44 30% 10 Other 53 10% 7 Sub-total $1,137 15% $118 FX Impact 25 - 2 Synergies - - 11 Incentives, Travel, Other Employee Costs - - (8) 2021 Actual $1,162 17% $123 Q1 2021 ORGANIC SALES AND OPERATING INCOME 18 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Sales Growth Rate Operating Income$ millions 19 Wire & Cable Transportation Industrial Healthcare Packaging Consumer Q1 2020PF Q1 2021 (2) Financial information is presented on a constant currency basis (1,2) (42% of total revenue) (58% of total revenue) Q1 END MARKET SALES PERFORMANCE +17% +14% +8% +10% +8% +22% +5% +24% Q 2 AN D FU LL Y EA R 2021 O U TLO O K A S O F A P R I L 3 0 , 2 0 2 1 W E B C A S T $69 $112 $0.42 $0.80 ORGANIC GROWTH PROJECTIONS – Q2 21 Sales Adjusted Operating Income $870 $1,100 + 26% + 62% + 90% (1) (1) (1) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition FULL YEAR GUIDANCE INCREASED 22 Sales Adj.