What level of technical support do you receive from your colorant supplier? By controlling the quality and technical capabilities of these systems, dosing consistency and accuracy is fully optimized. Technical Support Services A team of technical service engineers are located globally to provide full training and manufacturing support.

What level of technical support do you receive from your colorant supplier? By controlling the quality and technical capabilities of these systems, dosing consistency and accuracy is fully optimized. Technical Support Services A team of technical service engineers are located globally to provide full training and manufacturing support.

MAJOR W&C PRODUCER C A T E G O R Y C A B L E • Flame retardance • Replace fluorinated ethylene propylene (FEP) • High tensile strength and high elongation at break • Low dielectric constant (Dk) of 2.7-2.9 for data signal integrity • Satisfied stringent UL 444 requirements with an FEP alternative to achieve cost savings • Mitigated regulatory concerns with comprehensive technical support during testing and commercialization • Met required melt strength parameters for efficient profile extrusion Maxxam™ FR Flame Retardant Polyolefin Formulations KEY REQUIREMENTS WHY AVIENT?

Wire & cable manufacturer W I R E & C A B L E M A N U FAC T U R E R A E R O N A U T I C D A T A T R A N S M I S S I O N C A B L E S • Permanent contrast marking meeting aerospace industry standards SAE AS4373F and EN-3475-706 • Benign marking that, compared to infrared (IR) laser marking, will not damage the jacket surface • Elevated temperature performance in corrosive environments, maintaining dielectric properties under continuous service • No vital optical fiber or data transmission cable interference • Demonstrated fluorinated ethylene propylene (FEP) application expertise incorporating laser marks • Provided formulation expertise in PTFE alternatives • Delivered a high-quality product with no clumping during the extrusion process • Offered a proven array of specific aeronautic colors • Provided commercial, technical, and operational support KEY REQUIREMENTS APPEARANCE + PERFORMANCE WHY AVIENT?

Cesa Fiber Additives for Heat Preservation Technical Bulletin_TW2.28-1 Cesa™ 紅外蓄熱纖維添加劑 熱影像圖片 加熱前表面溫度：20.22°C 技術公告 埃萬特推出新一代應用於紡織纖維的紅外蓄熱添加 劑配方，旨在幫助品牌商能夠更加輕鬆地滿足消費 者對冬裝、運動裝和床上用品輕量舒適的要求。

Buyer acknowledges that information in Seller’s marketing materials, technical data sheets and other descriptive publications distributed or published on its websites may vary from time to time without notice. Seller warrants that goods subject to the sale (“Product”) are owned exclusively by Seller and are free from any encumbrances or rights of third persons and that the Product conforms at the time of shipment to a Certificate of Analysis, a Certificate of Compliance, or a Product Specification Sheet, if any such document exists, and other specifications signed by Seller (“Specifications”). Buyer acknowledges that Seller has furnished to Buyer Safety Data Sheets, which include warnings together with safety and health information 15.

Operating Globally, Serving Locally — As a truly global company, we have operations and technical expertise around the world to efficiently serve our customers…wherever they may need us. D is t. ) K W R R P M P P G A V Y F U L G C P IF F H X L F M C F O E H U N E C L K R A E M N A S H C E S C L G R A A L B Median: 5%Median: 3% Source: Peer data per Bloomberg market data as of April 27, 2021 Avient reflects 2021 estimated revenue of $4,300M and excludes one-time synergy capture CAPEX ($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 Median: 84% Median: 77% 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 $560M and excludes one-time synergy capture CAPEX ($20M) Source: Peer data per Bloomberg market data as of April 27, 2021 87 89 87 86 82 81 76 88 87 84 82 81 78 77 77 77 76 73 70 69 50 19 A vi e n t K W R P P G R P M A V Y F U L G C P F M C IF F H X L U N V R E C L A S H C E B N R F O E E M N G R A H U N K R A S C L A L B Source: Peer data per Bloomberg market data as of April 27, 2021 Total Enterprise Value / 2021E EBITDA Our current valuation with updated guidance implies an EBITDA multiple that is below specialty formulator peers and the majority of our chemical peers.

PR 202 Semi-Transparent Masstone Tint ADVANCED DISPERSIONS SPECIALTY COLORANTS Spectrophotometric Fact Sheet EXPLANATION OF SPECTROPHOTOMETRIC DATA Avient certifies our colorants based on CIELAB spectrophotometric color difference data for each lot of product.

Operating Globally, Serving Locally — As a truly global company, we have operations and technical expertise around the world to efficiently serve our customers…wherever they may need us. D is t. ) R P M P P G K W R F U L A V Y G C P IF F F M C H X L H U N E M N F O E E C L K R A S C L A S H C E G R A A L B Median: 5%Median: 3% Source: Peer data per Bloomberg market data as of February 5, 2021 Avient reflects 2021 estimated revenue of $4,100M and excludes one-time synergy capture CAPEX ($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 Median: 83% Median: 76% 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 $510M and excludes one-time synergy capture CAPEX ($20M) Source: Peer data per Bloomberg market data as of February 5, 2021 85 87 86 86 81 81 59 92 88 81 79 79 79 76 76 75 73 67 67 64 60 7 A vi e n t P P G K W R R P M F U L A V Y G C P IF F F M C U N V R H X L E M N B N R E C L C E A S H F O E G R A H U N K R A S C L A L B Source: Peer data per Bloomberg market data as of February 5, 2021 Total Enterprise Value / 2021E EBITDA Our current valuation implies an EBITDA multiple that is significantly below specialty formulator peers and our historic valuations, when the company had considerable exposure to more cyclical and challenging end markets.

TECHNICAL BULLETIN Sustainability Spotlight WATER SUBMERSION DEMONSTRATION To model performance loss as moisture is absorbed over time, tensile bars were submersed in water.