PolyOne Corporation Page 4 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 • Substantial EPS growth from $0.13 to all-time high of $1.80 • Shift to faster growing, high margin, less cyclical end markets • Key acquisitions propel current and future growth, as well as margin expansion • Specialty mix expands to 65% of Operating Income – strongest mix of earnings in history • Accelerating growth • Deliver consistent double digit annual EPS growth • Maintain >35% vitality index • Pursue strategic acquisitions that expand specialty offerings and geographic breadth • Invest and grow current and next generation talent PolyOne Corporation Page 5 Building & 10% Electrical & 11% 9% Distribution 28% PP&S 52% 69% 13% 7% Asia 2014 Revenues: $3.8 Billion End Markets 2014 Revenues: $3.8 Billion PolyOne At A Glance $13 $31 $46 $46 $92 $96 $122 $195 $242 2006 2007 2008 2009 2010 2011 2012 2013 2014 Specialty Operating Income ($M) PolyOne Corporation Page 6 Old PolyOne *Operating Income excludes corporate charges and special items 2% 34% 43% 62% 65% 69% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2013 2014 Q1 2015 2020 % o f O pe ra tin g In co m e* JV's Performance Products & Solutions Distribution Specialty 80%+ Specialty OI $5M $46M $87M $195M $242M $60M Mix Shift Highlights Specialty Transformation Transformation 2020 Platinum Vision Platinum Vision PolyOne Corporation Page 7 Confirmation of Our Strategy The World’s Premier Provider of Specialized Polymer Materials, Services and Solutions Specialization Globalization Operational Excellence Commercial Excellence PolyOne Corporation Page 8 -100% 0% 200% 300% 400% 500% 600% Strategy and Execution Drive Results $0.12 $0.27 $0.21 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 '06 '07 '08 '09 '10 '11 '12 '13 '14 ‘06-‘14 Adjusted EPS CAGR = 40% Adjusted EPS Share Price vs.  Addressable market exceeds $40 billion  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 PolyOne Corporation Page 18 Appendix PolyOne Corporation Page 19 $0.17 $0.22 $0.24 $0.31 $0.44 $0.46 $0.00 $0.25 $0.50 Q1'10 Q1'11 Q1'12 Q1'13 Q1'14 Q1'15 Adjusted EPS $30 $34 $25 $30 $35 Q1 2014 Q1 2015 GCAI Operating Income (in millions) $18 $23 $15 $20 $25 Q1 2014 Q1 2015 GSEM Operating Income (in millions) Q1 2015 Financial Highlights  Global Specialty Engineered Materials’ operating margin of 16.3% above the 2015 target  Global Color Additives and Inks’ operating margin grew to 16.2%  First quarter adjusted EPS has grown on average 23% per year since 2010 +26% +11% PolyOne Corporation Page 20 Building & 7% Electrical & 1% 31% Textiles 7% 12% 1.7% 4.6% 5.1% 5.5% 7.2% 8.1% 9.7% 12.2% 16.2% 20%+ 2006 2007 2008 2009 2010 2011 2012 2013 2014 Q1 2015 2020 Operating Income % of Sales At a Glance Global Color, Additives and Inks 2014 Revenues: $0.9 Billion Solutions Expanding Profits 2014 Revenue by Industry Segment 14.7% Platinum Vision 36% PolyOne Corporation Page 21 4% Building & 18% Electrical & 16% At a Glance Global Specialty Engineered Materials 2014 Revenues: $0.6 Billion Solutions 2014 Revenue by Industry Segment Expanding Profits 1.1% 1.3% 3.4% 5.1% 9.6% 8.0% 8.6% 9.3% 16.3% 20%+ 2006 2007 2008 2009 2010 2011 2012 2013 2014 Q1 2015 2020 Operating Income % of Sales Platinum Vision 12.1% 33% 19% PolyOne Corporation Page 22 2% Building & 23% 27% 30% 96% At a Glance Designed Structures and Solutions Solutions 2014 Revenues: $0.6 Billion Expanding Profits 2014 Revenue by Industry Segment 1.4% 5.6% 7.3% 2.7% 12-14% 2012 2013 2014 Q1 2015 2020 Operating Income % of Sales Platinum Vision PolyOne Corporation Page 23 Building & 33% 5% Electrical & 1% 11% 18% 16% 5.5% 6.9% 3.8% 3.6% 5.5% 4.3% 6.3% 7.2% 6.5% 2006 2007 2008 2009 2010 2011 2012 2013 2014 Q1 2015 2020 Operating Income % of Sales At a Glance Performance Products and Solutions Solutions Expanding Profits 2014 Revenues: $0.8 Billion 10-12% Platinum Vision 2014 Revenue by Industry Segment 7.7% PolyOne Corporation Page 24 Building & 13% Electrical & 23% 15% 25% 2.6% 3.0% 3.5% 4.0% 4.6% 5.6% 6.4% 5.9% 5.9% 6.5-7.5% 2006 2007 2008 2009 2010 2011 2012 2013 2014 Q1 2015 2020 Operating Income % of Sales 15% 50% 2006 Q1 2015 At a Glance Distribution Key Suppliers 2014 Revenues: $1.1 Billion ROIC Expanding Profits 6.1% Platinum Vision http://www.polyone.com/Pages/VariationRoot.aspx PolyOne Corporation Page 25 2 lbs Plastic = 3 lbs aluminum or 8 lbs steel or 27 lbs glass 33% less material by weight than aluminum 75% less material by weight than steel 93% less material by weight than glass Requires 91% less energy to recycle a pound of plastic versus a pound of paper Source: SPI: Sustainability and the Plastics Industry Plastics: Key to Future Sustainable Development PolyOne Corporation Page 26 Commitment to Operational Excellence 81% 93% 2006 2014 16.2% 9.9% 2006 2014 On-Time Delivery Working Capital % of Sales 5% 43% 2006 2014 Percent of Associates Trained in LSS  Four consecutive years – CFO Magazine Best Working Capital Management in the chemical industry World’s Best Business Process Excellence Program in 2012*  103 trained Black Belts  247 trained Green Belts  127 trained Kaizen Leaders World’s Best Start-up Program for Lean Six Sigma Deployment in 2009* *Both awards received from International Quality and Productivity Center PolyOne Corporation Page 27 Application Examples PolyOne Corporation Page 28  $1.5 billion attractive, growing market  Additives improve performance and reduce cost through light-weighting, reduced waste, faster cycle times, and extended shelf life of finished product  Aligned with megatrend of protecting the environment:  Sustainability benefits include lower package weight and improved recyclability of package at end of use Market Opportunity Leading Global Supplier of Additives In Growing PET Market Shelf-life extension Greater product consistency Recyclability and reduced carbon footprint Color and Special Effects Weight reduction Enhanced product aesthetics High heat resistance PET Bottling Technology 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 2009 2014 2019 Asia Pacific North America Latin America Western Europe Eastern Europe Middle East and Africa Global PET Packaging Growth 2009-2019 Source: Euromonitor retail off-trade consumption (PET bottles & jars, home care, personal care, food & non-alcoholic beverages) B ill io n un its 5% CAGR PolyOne Corporation Page 29 • Includes formulation and consultative services to assist manufacturers and brand owners in positively identifying their finished goods • Protects brand equity & consumer welfare • Reduces exposure to unwarranted recall expenses • Secures supply chain integrity – support for safe expansion into new geographies Authentication Technology PolyOne Corporation Page 30 • Color harmonization across 15 unique color-and-polymer combinations • Eliminated need for multiple pre- colored materials • Reduced Land Rover’s working capital 2015 Range Rover Evoque Interior PolyOne Corporation Page 31 • Reduced health and environmental impact • System cost reduction • Radiation-shielding performance • Parts consolidation • Design freedom CT Scanner PolyOne Corporation Page 32 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 Page 33 Next Generation Solar Charger • Ginkgo Solar Tree charger utilizing our unique reSound™ material • reSound™ is a durable material consisting of 50% bio-derived plastic and 50% traditional petroleum-based plastic • Use of reSound™ reduced the carbon footprint for this product by 35% • reSound™ Is classified as a PolyOne Sustainable SolutionSM PolyOne Sustainable SolutionSM PolyOne Corporation Page 34 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 organoleptic properties PolyOne Corporation Page 35 Aerospace Applications • Leading provider of specialty materials for the aerospace industry • Typical applications  Mil-spec aircraft windows, canopies, windscreens, instrument panels, wingtip lenses  Interior – gallery furnishings, tray tables, arm rests, trim strips, joint/edge coverings • Benefits:  High impact strength  Resistant to UV rays  Flame and smoke compliance  Easy to clean with aggressive cleaners; anti-microbial grades available  Range of sizes, thicknesses, colors, etc.

461C LT YELLOW 10% GLASS PG 111564.02 BK PP PP FR 8-6 LMS-1000

GLASS YELLOW PG 327823.02 BU PP PP DK.

Examples include: • Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy • Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation and reduce carbon footprint • Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility Avient employs approximately 8,400 associates and is certified ACC Responsible Care®, a founding member of the Alliance to End Plastic Waste and certified Great Place to Work®.

Develop and implement solutions to end plastic waste while supporting AEPW $1.5B investment in key initiatives. 2030 Sustainability Targets 27Avient Corporation Sustainalytics 2021 ESG Risk Ranking RANK (1st = lowest risk) PERCENTILE (1st – lowest risk) Chemicals INDUSTRY 75/449 17th Specialty Chemicals SUBINDUSTRY 21/124 17th ISS November 2021 ESG Scores SCORE (1 = Best, 10 = Worst) Environmental 2 Social 1 Governance 4 28Avient Corporation Avient ESG Ratings Products 8 W A Y S W E H E L P C U S T O M E R S B E M O R E S U S T A I N A B L E 29Avient Corporation Enabling Customers’ Recycling Goals R E S O U N D ™ R R E C Y C L E D - C O N T E N T T P E 62% recycle content High performance and quality Reduce waste with refillable features 30Avient Corporation Lightweighting Commercial Trucks P O L Y S T R A N D ™ T H E R M O P L A S T I C C O M P O S I T E L A M I N A T E S 60% Weight reduction in box truck panels Improve fuel economy 100% recyclable 31Avient Corporation 75% less water Enabling Customers to Conserve Resources, Reduce Waste R E N O L ™ S P I N D Y E C O L O R I N G M E T H O D 30% less energy lower carbon footprint 32Avient Corporation Sustainability for a Better Tomorrow *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business Revenue From Sustainable Solutions* 2016-2021 2016 2017 2018 2019 2020PF** 2021E $405M $455M $550M $790M $270 215 170 $930M2021E Sales Avient Corporation 33 The Challenge and the Opportunity Avient Corporation 34 Plastic is Part of the Solution PLASTIC ALTERNATIVE PACKAGING (GLASS & ALUMINUM) Requires… Avient Corporation 35 Source: Franklin Associates, A Division of Eastern Research Group (ERG) 2x more 6x more Water 5x more Weight 2x more Greenhouse gas emissions Brand Owners Goals: Substantially Increase use of Recycled Materials 10 40 14 25 13 22 35 19 13 18 41 Current Additional share needed to reach 2025 target Brand Owner 1 Brand Owner 3 Brand Owner 2 Brand Owner 7 Brand Owner 4 Brand Owner 10 Brand Owner 6 Brand Owner 11 Brand Owner 5 Brand Owner 8 Brand Owner 9 Brand Owner 12 Brand Owner 13 Percent recycled plastic used: (examples and not exhaustive) (1) Latest year reported. Avient reflects 2021 estimated revenue of $4,750M and estimated CAPEX of $80M (excludes one-time synergy capture CAPEX of $20M) 129Avient Corporation 474 644 1,002 107 147 216 467 616 872 2014 2018 2021E R&D / Technical Marketing Sales Commercial Resources Headcount figures all Pro Forma for sale of Designed Structures and Solutions (DSS) and Performance Products and Solutions (PP&S) segments. 2021E data as of October 31, 2021. D tr ib u tio 2021 Expansion Goals With the Clariant Color business acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets.

PRODUCT FR™ 0521-48 R1 FR™ 0587-21 R3 TYPE LSFOH PP ✔ Halogenated FR PP ✔ APPLICATION Crossweb ✔ ✔ Insulation ✔ GENERAL PROPERTIES Specific gravity g/cm3 1.50 1.46 LOI % 31 34 Tensile Strength MPa 13.8 15.9 Elongation % 320 320 Dielectric constant 1MHz 3.06 2.88 Shore D - 72 75.6 T°C max/T°F Max °C/°F 232/450 232/450 FIRE PERFORMANCE UL 444 ✔ ✔ Plenum yellow card ✔ ✔

Version / Date: 1 (no adjustments) / 30.12.2024 Page 2 of 2 Annex I to the certificate: Sustainable materials handled by the certified site (This annex is applicable for all scopes except of Trader, Trader with storage, Warehouse, Logistic centres, MTBE and ETBE) This annex is only valid in connection with the certificate: ISCC-PLUS-Cert-PL214-26100824 issued on 30.12.2024 Input material Output material Add-ons (voluntary)1) Raw material category2) SAI FSA3) FEFAC4) Polypropylene (PP) Plastic Compounds (PP) NO Bio Bio-circular Circular N/A N/A Polyethylene (PE) Plastic Compounds (PE) NO Bio Bio-circular Circular N/A N/A 1) ISCC PLUS add-ons (voluntary application, see www.iscc-system.org for further information): • 202-04: Food Security Standard • 205-02: Consumables • 202-07: Low ILUC-risk feedstock • 205-03: Non GMO for food and feed • 205-01: GHG emission requirements • 205-04: Non GMO for technical markets 2) Bio raw materials complies with the ISCC Principles 1 – 6 for the cultivation and harvesting of sustainable biomass.

STAN-TONE VC-25634 FROSTED GLASS PG 69673.00 BU PP PG 69674.00 BU PP

AMARILLO 116C PP RED UV/FR PP GOLD P123 UV GLASS NY HM

PP ORANGE 130C PURPLE P268C UV GLASS PP PP FR 8-6 LMS-1000