X ET 11909-01-13 Plasmology Purple Conc X ET #SR-12496 Arctic White

D is t. ) K W R P P G A V Y F U L R P M G C P F M C H X L H U N E C L A S H E M N C E S C L Source: Peer data per Bloomberg market data as of October 25, 2021 Avient reflects 2021 estimated revenue of $4,750M and estimated CAPEX of $80M (excludes one-time synergy capture CAPEX of $20M) Avient Specialty Formulators Other Chemical/Specialty Companies Free Cash Flow Conversion (1) 2021E (%) Being asset light helps us to generate strong free cash flow that is in line with specialty formulators. Free cash flow conversion calculated as (EBITDA – Capex) / EBITDA H I G H F R E E C A S H F L OW C O N V E R S I O N Avient reflects 2021 estimated EBITDA of $580M and estimated CAPEX of $80M (excludes one-time synergy capture CAPEX of $20M) Source: Peer data per Bloomberg market data as of October 25, 2021 86 92 85 82 79 77 74 89 83 82 80 79 79 78 78 72 33 A vi e n t K W R P P G A V Y F U L R P M G C P F M C U N V R C E H X L B N R A S H E C L E M N H U N S C L A L B (12) Source: Peer data per Bloomberg market data as of October 25, 2021 Total Enterprise Value / 2021E EBITDA Our current valuation with updated guidance implies an EBITDA multiple that is below specialty formulator peers and the median of other selected chemical / specialty companies. 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, with increased geographic diversification and a more specialized portfolio that can significantly expand EBITDA margins. 24 Avient reflects 2021 estimated EBITDA of $580M O U R VA LUATI O N V E R S U S P E E R S Avient Specialty Formulators Other Chemical/Specialty Companies 11.0 18.3 16.3 15.4 14.5 11.6 11.1 36.2 28.0 24.9 13.0 11.5 11.3 10.0 9.2 8.8 7.7 6.7 A vi e n t K W R P P G A V Y R P M F U L G C P A L B H X L E C L A S H F M C B N R S C L U N V R E M N C E H U N S U M M A RY: W H Y I N V E S T I N AV I E N T ?

These methods include: PULTRUSION • Fibers are impregnated with liquid thermoset resins, then pulled through a heated die to cure the resin and form the product • This continuous, automated manufacturing process creates constant cross section profiles of any pre-determined length with consistent, uniform quality and exceptional mechanical performance • Applications include rods and profiles of various lengths and complexities, such as utility poles, insulator core rods and structural beams CONTINUOUS FILAMENT WINDING • Combines the principles of filament winding with pultrusion to create constant or tapered cross- sectional tubing in precision sizes • The unique axial and biaxial fiber orientation provides flexural and tensile strength, as well as crush and burst resistance • Applications include lightweight shelter frames and sporting goods components CONTINUOUS RESIN TRANSFER MOLDING (CRTM™) • Engineered core materials are sandwiched between structural composite laminate face sheets • Continuous composite sandwich panels feature high specific strength and stiffness-to-weight ratio • Applications include ballistic resistant panels, truck floors and rail car doors CONTINUOUS FIBER REINFORCED THERMOPLASTICS • Fully recyclable tape, X-Ply™ (0°/90°), and other multi-ply configurations with widths up to 10' wide • Sandwich panels in unlimited lengths, up to 6" thick and 10' wide • High volume production capacity • Applications include structural and aerodynamic components in transportation, and reinforcement of materials such as wood and metal THERMOSET COMPOSITE LAMINATES & BARSTOCK • Unidirectionally reinforced barstock, laminates and hybrid composites engineered to maximize deflection and fatigue resistance • Customizable shapes and sizes • Applications include archery bow limbs, flat springs, prosthetics, sporting equipment THERMOSET FINISHING OPERATIONS • Customized finishing capabilities for barstock and laminates including machining, water-jet cutting, profiling/shaping, sanding, slitting, laminating, molding and coatings TESTING CAPABILITIES • Mechanical – Flexural, tensile, compression, shear, fatigue, impact resistance • Physical – Specific gravity/density, Barcol hardness, water absorption, void content, resin/fiber content, dye penetrant, viscosity • Thermomechanical – Coefficient of linear thermal expansion, glass transition temperature, deflection temperature, degree of cure, curing properties • Electrical – High-voltage, low current dry arc resistance of solid electrical insulation, dielectric strength, water diffusion ABOUT AVIENT ADVANCED COMPOSITES The Avient advanced composites portfolio consists of Glasforms™, Gordon Composites™ and Polystrand™ branded materials.

CT scanners)  Creates value by eliminating the need for machining and secondary operations, removing weight, streamlining production and improving cost efficiencies PolyOne Corporation Page 52 Medical Device Solutions  Catheters made using NEU™ View patent-pending technology are optically translucent, and have superior contrast under X-ray (radiopaque) when compared with alternative catheter materials  Formulations for cardiovascular and intravascular catheters are application-specific, incorporating medical-grade polymers, additives, color, and healthcare-centric manufacturing practices  Only commercially available product that has excellent visibility, both optically and under X-ray, to bolster clinician confidence and offer significant market advantage PolyOne Corporation Page 53 Consumer Electronics Solutions  Ability to offer multiple technology solutions on a global basis for this industry, where many OEMs design in one region, prototype in another, and manufacture in yet another  Sustainable / “green” solutions help customers to differentiate in this market  New formulations for emerging wearables market that meet skin contact requirements and aesthetic needs PolyOne Corporation Page 54 Appliances 4% Building & Construction 4% Consumer 17% Electrical & Electronics 16% Healthcare 12% Industrial 8% Packaging 7% Transportation 19% Wire & Cable 13% At a Glance Global Specialty Engineered Materials 2013 Revenues: $0.6 Billion Solutions 2013 Revenue by Industry Segment Expanding Profits 1.1% 1.3% 3.4% 5.1% 9.6% 8.0% 8.6% 9.3% 12-16% 2006 2007 2008 2009 2010 2011 2012 2013 Q1 2014 2015 Operating Income % of Sales Target United States 43% Europe 33% Canada 2% Asia 18% Latin America 4% 11.6% PolyOne Corporation Page 55 Appliances 2% Building & Construction 11% Consumer 5% Electrical & Electronics 6% Healthcare 7% Industrial 13% Packaging 34% Transportation 10% Wire & Cable 12% Target At a Glance Global Color, Additives and Inks 2013 Revenues: $0.9 Billion Solutions Expanding Profits 1.7% 4.6% 5.1% 5.5% 7.2% 8.1% 9.7% 12.2% 12-16% 2006 2007 2008 2009 2010 2011 2012 2013 Q1 2014 2015 Operating Income % of Sales United States 44% Europe 37% Canada 2% Asia 11% Latin America 6% 2013 Revenue by Industry Segment 13.8% PolyOne Corporation Page 56 At a Glance Designed Structures and Solutions Solutions 2013 Revenues: $0.6 Billion Expanding Profits 2.2% 8 - 10% 6.5% 2012 PF Q1 2013 Q1 2014 2015 Operating Income % of Sales 0.2% Target United States 96% Canada 3% Latin America 1% Appliances 2% Building & Construction 10% Consumer 11% Healthcare 6% Industrial 13% Packaging 32% Transportation 26% 2013 Revenue by Industry Segment PolyOne Corporation Page 57 5.5% 6.9% 3.8% 3.6% 5.5% 4.3% 6.3% 7.2% 2006 2007 2008 2009 2010 2011 2012 2013 Q1 2014 Operating Income % of Sales At a Glance Performance Products and Solutions Solutions Expanding Profits 2013 Revenues: $0.8 Billion United States 81% Europe 1% Canada 14% Asia 2% Latin America 2% 9-12% Target 2013 Revenue by Industry Segment Appliances 8% Building & Construction 34% Consumer 4% Electrical & Electronics 3% Healthcare 1%Industrial 10% Packaging 6% Transportation 16% Wire & Cable 18% 2015 7.7% PolyOne Corporation Page 58 2.6% 3.0% 3.5% 4.0% 4.6% 5.6% 6.4% 5.9% 6 - 7.5% 2006 2007 2008 2009 2010 2011 2012 2013 Q1 2014 2015 Operating Income % of Sales 15.3% 46.0% 2006 Q1 2014 At a Glance Distribution *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period Solutions 2013 Revenues: $1.1 Billion ROIC* Expanding Profits Target Appliances 5% Building & Construction 5% Consumer 14% Electrical & Electronics 5% Healthcare 24% Industrial 16% Packaging 5% Transportation 23% Wire & Cable 3% 6.1% http://www.polyone.com/Pages/VariationRoot.aspx

X HC3210-0002 2705C Purple X ET-63782-274-1 APRICOT ID#154 2

VALUE BENEFITS OF USING THE FLEXCART NANO SYSTEM The FlexCart Nano metering system is market leading: • Robust and dependable system control • Reliable yield (typically above 90%) and sustainable packaging • Fully supported technology • Small footprint designed for very low throughputs FLEXCART™ NANO LIQUID METERING SYSTEM Combined with the PlanetPak™ delivery packaging ATTRIBUTE FLEXCART NANO Footprint (LxW cm) 55 x 30 Controller options 3000 Typical max.

EUROPEAN CABLE MANUFACTURER S E M I - T I G H T B U F F E R F O R I N D O O R D U P L E X C A B L E S • Low shrinkage for connectorization • Easy to strip for efficient installation • Good kink resistance • Resistance to chemicals and filling compounds • Provided an alternative solution, with improved performance, compared to PA12 and PBT materials on the market • Reduced shrinkage and improved strippability for easier installation • Reduced smoke production, improving overall fire performance • Increased processing speeds, reducing overall manufacturing cost ECCOH™ 6151 Formulation KEY REQUIREMENTS WHY AVIENT?

X MF-2172-003 Natural X MF-11038-006-5 Natural X MF-11038-006-6 Natural

X HC 38045-01A-01 10% GF X HC 38045-01A-01 20% GF CORE(TM) MB3242 SILVER PLUG 101 NP

X ET-21644-001-6 Black X GT-20459-1E LC 485-101