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% $123 Q1 2021 ORGANIC SALES AND OPERATING INCOME 7 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Sales Growth Rate Operating Income$ millions 8 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 $69 $112 $0.42 $0.80 ORGANIC GROWTH PROJECTIONS – Q2 10 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 11 Sales Adj. D is t. ) LB Median: 5%Median: 3% Avient reflects 2021 estimated revenue of $4,300M and excludes one-time synergy capture CAPEX ($20M) Avient Specialty Other Free Cash Flow Conversion (1) 2021E (%) Being asset light helps us to generate strong free cash flow that is in line with specialty formulators. Our free cash flow supports shareholder value creation through investing in R&D for organic growth, completing bolt-on acquisitions, and returning cash to shareholders via our dividend program and opportunistic share repurchases. 19 1.

PolyOne Corporation - TS 691920 Certificate of Registration QUALITY MANAGEMENT SYSTEM - IATF 16949:2016 This is to certify that: PolyOne Corporation 4921 I D A Park Drive Lockport New York 14094 operates a Quality Management System which complies with the requirements of IATF 16949:2016 for the following scope: Design and Manufacture of thermoplastic compounds. CertificateNumber=TS+691920&ReIssueDate=10%2f05%2f2018&Template=inc PolyOne Corporation 4921 I D A Park Drive Lockport New York 14094 Manufacture of thermoplastic compounds.

WIR E & CABLE OEM P V D F E X T R U S I O N • Improve extrusion line speed • Minimize defects, optimize coefficient of friction (CoF), control extrusion pressure, and eliminate die drool • Prevent melt fracture (sharkskin) • Reduce energy use in processing to achieve cost savings • Delivered a polyvinylidene fluoride (PVDF) solution that improved extrusion production times • Provided application specialists with deep knowledge of PVDF processing windows (melt and degradation temperatures) to help boost overall processing performance • Enhanced surface aesthetics by reducing friction and improving flow stability • Gained a reduction in energy use and offered added savings for other PVDF applications such as wire jacketing or tube and pipe extrusion Colorant Chromatics PVDF Processing Aid KEY REQUIREMENTS WHY AVIENT?

F L E X IB L E PA C K AG I N G C O M PA N Y P E T F O O D P A C K A G I N G • Incorporate an antistatic additive into pet food packaging to dissipate static in hot and dry environments • Improve efficiency within a robotic packaging process • Support extended packaging shelf life • Leveraged technical expertise in packaging additives to identify a suitable formulation for static dissipation in harsh environments • Provided a customized and effective antistatic additive solution that complemented the automated packaging process while providing added durability and protection to extend shelf life Cesa Stat Antistatic Additives KEY REQUIREMENTS WHY AVIENT?

OFC TECHNOLOGY LEADER M I C R O B U N D L E S I N B L O W I N G A P P L I C A T I O N F O R R A I L W A Y S • Strippable with fingers for easy installation/access to fibers • High speed processing at a low wall thickness • Low shrinkage • Resistance to chemicals and filling compounds • Meet XP C93-850-1-1 standard • Re-designed cable to provide advantageous functional and economical value • Improved flexibility compared to PBT and PP tubes, allowing longer blowing distances on paths with angles of 90° • Increased processing speed and improved ease of installation • Provided better cable lifetime value compared to alternative solutions ECCOH™ 6151 UV SEPAP Formulation KEY REQUIREMENTS WHY AVIENT?

OFC MANUFACTURER 5 G H Y B R I D C A B L E J A C K E T I N G & I N S U L A T I O N • Fire performance: reduce smoke and fume production, high flame and char resistance • Reduce development time • Meet required standards: UL 1581 (Class XL) mechanical properties , UL 1685 (flame test/smoke parameters), FT2 & FV2 (VW1) • Accelerated speed to market, reducing development time to three months • Instilled confidence and proved material expertise as solutions passed extensive testing ahead of competition • Optimized cable manufacture process and line speed following trials at customers facility ECCOH 5549/1 LDD & Syncure™ S100FH KEY REQUIREMENTS WHY AVIENT?

© 2020, All Right Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 LIGHTING MANUFACTURER H E A T S I N K F O R H I G H P O W E R L E D • PA based grade to replace aluminum • High thermal conductivity ̴ 15 W/mK • Electrically conductive • Easy moulding • Improved light output compared to alternative materials • Improved corrosion resistance and weight reduction • It gave the customer more design possibilities and a more cost effective solution Customized PA based grade KEY REQUIREMENTS WHY AVIENT?

EUROPEAN CABLE MANUFACTURER G E L - F I L L E D C E N T R A L L O O S E T U B E C A B L E S • Fire performance: CPR classification Cca-s1, d0, a1 • Resistance to chemicals and filling compounds • Rigidity close to PBT • Melting point higher than 100°C • Developed a custom formulation to reach required rigidity • Eliminated hydrolysis experienced with previous PBT material • Provided expertise in process improvement to help the customer achieve a more competitive processing speed ECCOH™ PF 4142 Formulation KEY REQUIREMENTS WHY AVIENT?

EDWARDS DESIGN & FABRICATION M O D U L A R M I L I T A R Y B A L L I S T I C S H E L T E R S • Blast and bullet resistance to protect soldiers and military assets in mortar pits, shelters, and guard towers • Lightweight for portability and quick deployment without heavy equipment • Specific colors required to provide visual cover in the field • Provided UL 752 Level 3 ballistic resistance, additional protection by layering panels • Reduced weight by 75% compared to steel, improved portability over concrete or sandbags • Enabled easy installation with common carpentry tools • Customized color formulations to meet needed camouflage without painting GlasArmor™ Ballistic Resistant Composite Panels KEY REQUIREMENTS WHY AVIENT?

ABOVE GROUND SWIMMING POOL C O M P O S I T E S I D E W A L L • Corrosion resistance to withstand salt water pool treatment • UV resistance for durability over years of use • Weight reduction vs. traditional metal to reduce shipping costs and simplify installation • Field tested for 3 years to prove Polystrand solution provides excellent UV, creep, and corrosion resistance • Reduced weight by 50% compared to metal • Rolled product enabled standard shipping vs. coiled steel sidewalls that require LTL delivery Polystrand™ thermoplastic composite laminate (4-ply) with integrated decorative film KEY REQUIREMENTS WHY AVIENT?