BUILDING MATERIALS RETAILER R O O F I N G M E M B R A N E S • Improve marketing claims for product performance and polymer integrity • Prevent and improve field life, and protect product from the growth and appearance of flora, fungi and algae from outdoor environmental exposures • Ability to convert materials from liquid to solid in order to accommodate advanced manufacturing technique • Seeking OBPA alternative • Delivered a product differentiating solution that eliminated both polymer-degrading microbials and mitigated the flora and fungal accumulation that causes discoloration and staining • Enabled versatility with combined liquid and solid masterbatch solutions • Provided a cost-effective and environmentally friendly OBPA alternative WithStand™ Antimicrobial Additives KEY REQUIREMENTS WHY AVIENT?

ELECTRICAL APPLIANCE BRAND H O U S E H O L D P R O D U C T S I N R E C Y C L E D A B S A N D P S • Support to qualify a new raw material sourcing process • Color prediction feasibility for new material grades • Color design guidance to maintain brand identity and differentiation • Color solutions that work with mixed grades of rABS and recycled polystyrene • Worked with the brand owner to test multiple styrenic grades and understand the best fit across colors and recycled resins • Supported integration of multiple resin solutions for the best rendering and aesthetics in rABS and rPS • Helped approve 7 colors to be launched within the forthcoming 18 months PCR Color Prediction Service KEY REQUIREMENTS WHY AVIENT?

SNOWMOBILE OEM R U N N I N G B O A R D • Strength and stiffness comparable to incumbent aluminum • Impact resistance at cold temperatures • Fatigue resistance • Extended mechanical performance, even with exposure to water (melted snow) • Good cosmetic finish with UV resistance • Tailored a formulation that maintained performance despite routine moisture exposure and met customer aesthetic standards to eliminate the need for decoration • Guided metal-to-composite conversion and design to redirect weld lines to non-critical structural areas, allowing complex geometric cutouts without post-operation requirements • Enabled cost reduction through assembly step simplification Complēt Moisture Resistant Long Fiber Reinforced Nylons KEY REQUIREMENTS WHY AVIENT AVIENT SOLUTION RESIST MOISTURE + METAL CONVERSION LEARN MORE Copyright © 2024, Avient Corporation.

SATELLITE OEM B R A I D E D T E T H E R • Needs a small diameter strength member with specific tensile and geometric requirements that current product was not achieving • Requires a solution that is also black and UV resistant, as existing aramid yarns are not available in color (coating is not acceptable for the application due to off-gassing complications) • Withstands extreme, prolonged thermal cycling • Acts as a critical component for safe re-entry into earth’s atmosphere at the end of the satellite’s life cycle. • Met critical government environmental regulations • Leveraged key existing vendor relationships to supply the only material able to meet all requirements • Mass-produced braids in parallel that attach to meet the length target • Ensured simple qualification process to increase speed to market Fiber-Line™ Vectran HT Braid KEY REQUIREMENTS WHY AVIENT?

The business includes six production facilities, four R&D centers and approximately 1,000 employees located around the world. Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility

- Ryan Divens, Technology Manager R&D for Color & Additives, will deliver “Navigating PFAS Replacements in the Plastics Industry.”   Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility    

Petrem Elšíkem, notářem se sídlem v Litoměřicích, na místě samém v sídle PRK Partners s.r.o. advokátní kancelář, na adrese Jáchymova 26/2, Staré Město, 110 00 Praha 1, dle § 80a a násl. notářského řádu o ---------------------------------------------------------------------------------------------------------------------- r o z h o d n u t í valné hromady společnosti PolyOne ČR, s.r.o., identifikační číslo 26689537, sídlem Pobřežní 620/3, Karlín, 186 00 Praha 8, spisová značka C 87503 vedená u Městského soudu v Praze (dále též „Společnost“), o změně obsahu společenské smlouvy (dále též „Rozhodnutí“), konané dne 21.10.2021 v budově na adrese Jáchymova 26/2, Staré Město, 110 00 Praha 1. ------------------ I. 1. Před zahájením valné hromady učinili všichni společníci, oba zast. zmocněncem, každý samostatně, dle § 184 odst. 3 ZOK, toto prohlášení: „Prohlašuji, že souhlasím s konáním této valné hromady i bez splnění požadavků zákona a společenské smlouvy na její svolání.“ ------------------- Před přijetím Rozhodnutí dle článku III. učinil Předsedající ve smyslu § 80b písm. g) notářského řádu toto prohlášení: „Valná hromada je způsobilá přijímat Rozhodnutí.“ -------------- III. Valná hromada Společnosti svým usnesením přijala toto --------------------------------------- r o z h o d n u t í o změně obsahu společenské smlouvy: a)Společenská smlouva Společnosti se mění tak, že v článku prvním „Obchodní firma, založení, vznik a právní forma společnosti“ odst. 1. a 2. nově zní takto: ---------------------- 1.

PROFILE EXTRUDER I N T E R I O R M O D U L A R P A N E L S • Meet ASTM E84 Class A fire safety rating for polyethylene sheet and profile extrusion wall construction • Provide a non-halogenated flame retardant that meets healthy building certification and approvals • Offer internal screening and cone calorimeter testing for multiple formulations with quick turnaround of results • Achieve target performance in aesthetics, impact, dimensional stability, CLTE, and E84 testing • Met global flammability standards including required ASTM E84 Class A fire safety rating • Offered a non-halogenated flame-retardant solution to address current or emerging healthy building codes and LEED material credits • Provided in-house UL-certified labs and multiple manufacturing locations to perform UL 94 material sampling and testing • Delivered on all key performance and testing requirements Cesa MAX Flame Retardant Additives KEY REQUIREMENTS WHY AVIENT?

TRACTOR TRAILER OEM C A R G O T R A I L E R S I D E W A L L S • Suitable CFA design for PE sheet extrusion in layered, metal-laminated inner sidewall panels • Improved fuel economy and reduced trailer tare weight • Uncompromised outdoor durability and part strength • Reduced polymer usage while maintaining physical and dimensional requirements • Delivered significant 20% part weight reduction with CFA solution • Provided formulation to enhance throughput, leading to a 43% overall cost reduction • Created value beyond initial technical challenge with a credible problem solving approach • Enhanced performance with excellent sidewalls, uniform foamed plastic core, superior flatness, and rigidity Hydrocerol™ Chemical Foaming Additives (CFAs) and Cesa™ Nucleant Additives KEY REQUIREMENTS WHY AVIENT?

AIRCRAFT INTERIOR OEM A I R C R A F T F L O O R I N G • Meet aircraft flammability requirements (FAA) • Provide flame retardance and smoke mitigation • Maintain physical properties • Control viscosity and allow enhanced processability • Retain product integrity as contaminant free • Provide product traceability • Provided strong global EHS and regulatory support to minimize risk • Offered a solution to improve quality consistency and control viscosity • Enhanced mixing capability and improved processing temperature and imprint hold • Allowed greater security of supply with multiple manufacturing locations • Provided an integrated solution of plastisols and pigment dispersions that met traceability requirements with JIT delivery KEY REQUIREMENTS QUALITY + PERFORMANCE WHY AVIENT?