THE CHALLENGE A leading North American manufacturer of polypropylene (PP) hose for medical applications, including laser surgery, respiratory care and sleep apnea equipment, faced a challenge with its existing thermoplastic vulcanizate (TPV). The Avient team assessed the application’s technical and operational requirements, and recommended GLS Versalloy™ XL- 9045-1 alloy in 45 Shore A durometer, an FDA-compliant medical TPV grade designed for overmolding onto PP.

APPLICATION BULLETIN PRODUCT NAME SUITABLE FOR APPLICATION LDR Cesa™ Stat OCA0025695 PP Permanent reduction of dust attraction in interior From 5% Cesa™ Stat OCA0025609 PC/ABS, PA6, PC/ASA Permanent reduction of dust attraction in interior From 8% Cesa™ Stat OCA0025603 LDPE, TPE Permanent reduction of dust attraction in interior From 7% The graph shows the measurement of the charge decay time at 23°C/50% r.H. on 80x80x2mm IM plaques. Even after wash- ing the surface with detergent and water with 5 repetitions, the antistatic effect remains unchanged. 0 500 1,000 1,500 2,000 2,500 3,000 0 20 40 60 80 100 Vo lt ag e (V ) Time (s) PP talc filled 5% Cesa Stat OCA0025695 5% Cesa Stat OCA0025695 wash end www.avient.com Copyright © 2023, Avient Corporation.

Available in 80 and 90 Shore A hardness, they are injection moldable and bond well to polypropylene (PP). KEY CHARACTERISTICS • 35–45% PCR/PIR content • Meet automotive standards for VOC, FOG, and odor • Colored black, additional colors are possible • Customizable formulations • Overmoldable to PP MARKETS & APPLICATIONS The reSound REC 7310 series provides a more sustainable TPE choice for automotive interior components and delivers comparable performance to their traditional counterparts.

KEY CHARACTERISTICS The primary features and benefits of Gravi-Tech formulations are: • Customized density, offering a wide range of specific gravities from 1.2 to 11 gm/cm3 • Broad modulus range, from very flexible to very rigid grades • Corrosion resistance, withstanding oxidation for long-term use and benefit • Chemical resistance, withstanding fuels, oils and other harsh chemicals • Metallization and electroplating, delivering the look and feel of metal Additional features include: • Design flexibility and processing ease • Good impact strength • Elevated heat deflection temperature PRODUCT BULLETIN TARGET MARKET AND APPLICATIONS Gravi-Tech composites are an excellent choice for applications in a full range of markets, including: Consumer Luxury packaging, golf clubs, fishing tackle, casino/gaming chips, exercise weights, hunting supplies, cutlery, appliances and hunting ammunition Healthcare X-ray shielding, nuclear medicine transport containers, and laboratory furniture and equipment Industrial Ammunition, reactor shielding, vibration and acoustical damping, military/tactical equipment, airport x-ray shielding, various food ware, building and construction equipment, inertial weighting, and underwater cable weighting Base Resin Specific Gravities Nylon 6 2.3, 2.7, 3.5, 4, 4.5, 5, 6 TPE 2.6, 3.9 TPU 2.6, 3, 4.5, 7.5, 9 PP 1.15–4 ABS 1.2–3 PPS 4 Nylon 12 4, 6.9, 11 TECHNICAL PROPERTIES Copyright © 2024, Avient Corporation.

Cesa™ Unify™ A4R Polyolefin Compatibilizer helps bring incompatible polymers like PP and PE together by forming them into a homogenous polymer mixture which increases the mechanical properties of the recycled polymer Cesa™ Flame Retardant Additives enable a fire performance in line with different levels of Glow Wire temperatures (IEC 60685-2-12) for various recycled resins including PP, PC, and PS.

Use of Non-GAAP Measures Page 3 -150.00% -50.00% 50.00% 150.00% 250.00% 350.00% PolyOne S&P 500 All time high of $34.47 December 9th, 2013 • 16 consecutive quarters of double digit EPS growth • 42% CAGR adjusted EPS expansion 2006-2012 • YTD stock price has increased 63% versus 27% growth in the S&P • More than six fold increase in market cap: $0.5b $3.3b Strategy and Execution Drive Results Page 4 The World’s Premier Provider of Specialized Polymer Materials, Services & Solutions Four Pillar Strategy Page 5 PP&S 15% Specialty 60% Distribution 25% 0.12 0.27 0.21 0.13 0.68 0.82 1.00 2.50 $0.00 $0.25 $0.50 $0.75 $1.00 $1.25 $1.50 $1.75 $2.00 $2.25 $2.50 2006 2007 2008 2009 2010* 2011* 2012* 2015 Target A dj us te d Ea rn in gs P er S ha re Appliance 6% Building & Construction 13% Wire & Cable 9% Electrical & Electronics 4% Consumer 9% Packaging 18% Industrial 10% Misc. 5% HealthCare 9% Transportation 16% Textiles 1% United States 70% Europe 14% Canada 8% Asia 5% Latin America 3% 2012 Revenues: $4.0 Billion* End Markets* 2012 Revenues: $4.0 Billion* EPS Page 6 * Pro Forma includes FY2012 results for Spartech (11/03/12 YE) and Glasforms & excludes discontinued operations PolyOne At A Glance * Restated to exclude discontinued operations Old PolyOne Transformation *Operating Income excludes corporate charges and special items 2% 34% 43% 63% 65- 75% 0% 20% 40% 60% 80% 100% 2005 2008 2010 YTD 2013 2015 % o f O pe ra ti ng In co m e* JV's PP&S Distribution Specialty Specialty OI $5M $46M $87M $153M Target Mix Shift Highlights Specialty Transformation 2015 Target Page 7 2006 YTD 2013 2015 Where we were Where we are Organic Consolidated Target 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 12.8% 12.8% 12 – 16% Global Specialty Engineered Materials 1.1% 10.8% 8.9% 12 – 16% Designed Structures & Solutions — — 5.0% 8 – 10% Performance Products & Solutions 5.5% 8.0% 8.2% 9 – 12% Distribution 2.6% 6.1% 6 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 63% 65 – 75% 3) ROIC* (after-tax) 5.0% 9.4% 15% 4) Adjusted EPS Growth N/A 28% 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 8 *Percentage of Specialty Platform revenue from products introduced in last five years 19.5% 44.0% 2006 Q3 2013 $20.3 $46.6 2006 TTM Q3'13 14.3% 31.0% 2006 Q3 2013 Research & Development Spending Specialty Platform Vitality Index Progression* Innovation Drives Earnings Growth ($ millions) Specialty Platform Gross Margin % Page 9 We are Experts in Polymer Science and Formulation  Polymer Science  Formulation  Chemistry  Processing Inputs  Base Resins  Additives  Modifiers  Colorants Specialized Polymer Materials, Services, and Solutions Expertise Satisfied Consumers PolyOne Customer Innovative Products & Services  Marketplace Demands  Performance Requirements  Value Drivers Page 10 Positioned for Strong Growth 2015 Target Rev: $5B Adj. EPS: $2.50 Assumptions • Mid single digit revenue CAGR • Operating margins in mid-range of 2015 targets • No global recession • No investment in incremental PP&S capacity • Housing starts at 85% of 50 year norm by 2015 • Remain comfortably below 3X Net Debt / EBITDA Page 11 2012 Rev: $2.9B Adj. Platform sales and operating income (OI) 2006Y* YTD 2013 Organic’ Acquisitions** YTD 2013’ Consolidated Global Specialty Engineered Materials Sales $ 345.3 $ 427.2 $ 113.6 $ 540.8 Global Color, Additives and Inks Sales 531.8 608.0 45.7 653.7 Designed Structures and Solutions Sales - - 428.2 428.2 Specialty Platform Sales $ 877.1 $ 1,035.2 $ 587.5 1,622.7 Performance Products and Solutions Sales 1,166.2 473.6 39.2 512.8 PolyOne Distribution Sales 732.8 818.1 - 818.1 Corporate and eliminations (153.7) (106.0) - (106.0) Total Sales $ 2,622.4 $ 2,220.9 $ 626.7 $ 2,847.6 Global Specialty Engineered Materials OI $ 3.9 $ 46.1 $ 2.1 $ 48.2 Global Color, Additives and Inks OI 8.9 78.0 5.4 83.4 Designed Structures & Solutions OI - - 21.4 21.4 Specialty Platform OI $ 12.8 $ 124.1 $ 28.9 $ 153.0 Performance Products and Solutions OI 64.2 38.1 3.7 41.8 PolyOne Distribution OI 19.2 49.7 - 49.7 Sunbelt Joint Venture OI 102.9 - - - Corporate and eliminations (4.6) (39.5) - (39.5) Special items in OI 39.1 (22.2) - (22.2) Operating income GAAP $ 233.6 $ 150.2 $ 32.6 $ 182.8 Sunbelt equity income (107.0) - - - Special items in OI (39.1) 22.2 - 22.2 Operating income adjusted $ 87.5 $ 172.4 $ 32.6 $ 205.0 Global Specialty Engineered Materials - OI % of sales 1.1% 10.8% 1.8% 8.9% Global Color, Additives and Inks - OI % of sales 1.7% 12.8% 11.8% 12.8% Designed Structures & Solutions - OI % of sales - - 5.0% 5.0% Specialty platform OI - % of sales 1.5% 12.0% 5.0% 9.4% PP&S operating OI - % of sales 5.5% 8.0% 9.4% 8.2% Distribution OI - % of sales 2.6% 6.1% - 6.1% PolyOne OI adjusted - % of sales 3.3% 7.8% 5.2% 7.2% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment. ** Spartech and Glasforms results for the nine months ended September 30, 2013.

PowerPoint Presentation M E D I C A L C O N N E C T O R S • Ongoing production with no change to regular set up • Excellent processing and demolding performance • Color stability during processing • Excellent chemical and impact resistance • Enabled efficient ongoing production rates without changing any processing parameters • Safeguarded color stability and transparency during processing for optimal aesthetics • Ensured regulatory requirements for biocompatible ISO109931 and FDA were met • Provided a solution effective across a range of high-temperature polymers, including PEEK, PPSU, PES, PSU, PEI, LCP, and PPS Colorant Chromatics Evoluscend non- PFAS* high-temperature polymer mold release additive KEY REQUIREMENTS WHY AVIENT AVIENT SOLUTION PRODUCTIVITY + REGULATORY LEARN MORE E L E C T R I C A L C O M P O N E N T O E M (*) A non-PFAS additive manufactured without non-intentionally added (NIA) PFAS or PTFE. (*) manufactured without intentionally added PFAS and without PTFE (1) refers to sulfone products only https://www.avient.com/products/polymer-additives/processing-enhancement-additives/colorant-chromatics-evoluscend-non-pfas-high-temperature-mold-release-additive Slide Number 1

Based on polymers such as polypropylene (PP), the new formulations also include a natural filler made from renewable plant sources that would otherwise go to waste. Hydrocerol™ Foaming Agents: These additives are commonly used in consumer goods and automotive components to reduce part weight without compromising stiffness or mechanical properties.

Geon(TM) FB588 Pink Foam Non-Phthalate PP FR 8-6 LMS-1000

FOAM COMPRESS STRENGTH PP FR 8-6 LMS-1000