LOOK TO US FOR SUPPORT WITH: Testing and Validation Fully accredited, in-house testing capabilities to generate data for insight into material behavior, environmental effects, and more Regulatory Coordination Dedicated product stewardship team assisting with new product approvals to reduce regulatory overhead and minimize risk Application Development Technical Service Technical experts specifically trained to work directly with your team in solving definitive application challenges Field Technical Service Onsite support for tool design, startup, and production optimization to gain manufacturing efficiencies and resolve technical issues Color and Additive Design Services Trend and color insights, and product development assistance to optimize design and gain speed to market Sustainability Innovative materials and solutions to help you meet your sustainability goals Copyright © 2024, Avient Corporation. Processing conditions can cause material properties to shift from the values stated in the information. Processing conditions can cause material properties to shift from the values stated in the information.

PolyOne Corporation Investor Day 2012 PolyOne Investor Presentation Bank of America Merrill Lynch 2013 US Basic Materials Conference December 11, 2013 • In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Three Months Ended ‘’’’’September 30, Platform operating income “””””””2013 2012 (a) Global Specialty Engineered Materials $ 15.7 $ 13.1 Global Color, Additives and Inks 28.7 18.6 Designed Structures and Solutions 10.9 – Specialty Platform 55.3 31.7 Performance Products and Solutions 14.3 12.3 PolyOne Distribution 16.6 16.4 Corporate and eliminations (24.6) (16.9) Operating income $ 61.6 $ 43.5 (a) Adjusted to reflect the resins business as a discontinued operation.

PACKAGING COMPONENT MANUFACTURER P E R F U M E C A P • A density modified formulation - PP filled, 1,2g/cm3 • Needs to contain recycled PP PIR content • Electroplatable - comparable to prime materials • Provide continuity of supply • Utilized formulation expertise to develop a custom material with post-industrial recycled PP content • Provided a more sustainable solution with 60% recycled content while maintaining the performance characteristics of prime PP • Expedited speed to market, delivering material in three weeks Gravi-Tech™ REC Recycled Formulation KEY REQUIREMENTS WHY AVIENT?

LUXURY CLOSURE MANUFACTURER L U X U R Y S P I R I T C A P • Specific gravity of 2.2 • White color for metallic surface treatment • Touch and feel of ceramic • FDA compliant material • Formulated a custom, ABS-based material suitable for electroplating to achieve desired weight, look, and feel of metal • Combined material, electroplating, and application experience and expertise to support the process from concept to production Gravi-Tech™ Density Modified Formulation KEY REQUIREMENTS WHY AVIENT?

INDUSTRIAL SAFETY OEM B A T T E R Y P A C K H O U S I N G • Static dissipation with dependable performance to protect users from electrical shock • Chemical resistance to withstand industrial cleaning protocols • Colorable material to differentiate models • Achieve target shrink rates • Injection moldable for high-volume production • Provided a custom concentrate material for flexibility in tailoring static dissipation performance • Offered on-site technical support to ensure proper blending and consistent end-application performance • Secured a long-term consistency in specialty raw material supply Surround™ Long Stainless Steel Fiber Reinforced Polycarbonate KEY REQUIREMENTS WHY AVIENT?

PERSONAL CARE DEVICES P A T I E N T M O B I L I T Y • Diminish the growth of harmful microbes on surfaces without compromising product performance • Achieve cohesive color across different polymeric materials with the addition of antimicrobial ingredients • Accelerate product development timeline • Preserved polymer performance by minimizing undesirable microbes • Designed a masterbatch solution that achieved color harmony between diverse polymeric materials even with the addition of antimicrobial ingredients • Accelerated speed to market by several weeks with Avient’s pre-tested material and supplier expertise while reducing costs of lab testing fees by up to $50,000 Cesa™ WithStand™ Antimicrobial Additives with OnColor™ Colorants KEY REQUIREMENTS WHY AVIENT?

AUTOMOTIVE COMPONENTS MANUFACTURER O U T S I D E R E A R - V I E W M I R R O R G A S K E T • Black materials with hardness 60 and shore A • UV Stabilized • Overmouldable on to PP • ROHS Compliant • Customer specified material • Utilized global reach to translate customer approved solution from Europe to India • Reduced development time as material was already qualified in Europe • Reduced import/export costs • Enabled Indian business to specify Avient as a preferred supplier Custom GLS™ Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?

LEADING ANTENNA MANUFACTURER A N T E N N A C O M P O N E N T S • Extremely tight performance tolerance • Dielectric performance of 3 – 7Dk • Ability to utilize existing injection molding machinery • High mold flow index (MFI) • On demand material delivery • Provided technical support throughout the development of multiple, highly technical materials • Formulated high quality materials that aligned with stringent specification, at a cost effective price • Provided order flexibility, allowing customer to order on demand • Collaborated across the supply chain, enabling customer to take a premium solution to market that can reduce maintenance and construction costs for end users Custom PREPERM™ Low-Loss Dielectric Formulations KEY REQUIREMENTS WHY AVIENT?

ENERGY STORAGE OEM A Q U E O U S B A T T E R Y G A S K E T • Sealing performance from -40 to 110°F • Ability to flow in a long, thin seal design • Chemical resistance to a proprietary electrolyte solution • Natural color • Provided a chemically resistant TPE that outperformed competitive TPE and thermoplastic rubber in rigorous customer testing • Offered material expertise and education to empower an informed material decision • Enabled OEM to model and evaluate sealing performance via design support and data files • Met global production needs through material consistency and local technical support Dynaflex™ Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?

Incorporating composite materials in snowboard bindings is not a new concept. And, unlike thermosets, thermoplastic materials are able to be easily thermoformed to the exact shape required before inserting into the injection mold. And beyond giving credibility to marketing claims, Rome’s team was impressed by the design freedom that our material offered