Maxxam™ FR Flame Retardant Formulations and Maxxam™ NHFR Non-Halogen Flame Retardant Formulations Hammerhead™ FR Flame Retardant Composite Panels Maxxam™ FR Flame Retardant Formulations and Maxxam™ NHFR Non-Halogen Flame Retardant Formulations

Automotive OEM AUTOMOTIVE OEM B U S B A R C A R R I E R F O R E V B A T T E R Y • Non-halogen solution • Flame performance to UL 94 V-0 @ 1.6 mm, GWFI 960°C @ 2mm • Excellent mechanical properties • Easy to process • Heat stabilized and high flow properties • Provide a non-halogenated solution with increased performance • Supported our customer throughout the project with design, regulatory and technical expertise • Helped to achieve the rigid requirements of EV battery applications Maxxam NHFR Non-Halogen Flame Retardant Polyolefin Formulation KEY REQUIREMENTS WHY AVIENT? All Rights Reserved https://www.avient.com/products/engineered-polymer-formulations/flame-retardant-formulations/maxxam-fr-flame-retardant-formulations-and-maxxam-nhfr-non-halogen-flame-retardant-formulations Automotive OEM

The results showed the Avient material outperformed typical FR PC/ABS and had an added bonus: a UL yellow card V0 flammability rating for all colors and some thicknesses.* Avient also used its custom color matching capabilities to provide pre-colored material that simplified molding, while the material’s wide processing window helped accommodate a variety of molding environments. * V0 @ 1.5 and 3.0mm FR PC/ABS failed 0% 20% 40% 60% 80% 100% 120% 140% Virex TB Clorox Broad Spectrum CaviCide SaniCloth Plus wipes 1% strain not tested 1% strain not tested FR PC/ABS failed FR PC/ABS failed FR PC/ABS failed FR PC / ABS (1.0% Strain) FR PC / ABS (1.5% Strain) Trilliant HC (1.0% strain) Trilliant HC (1.5% strain) FR PC/ABS failed 0% 20% 40% 60% 80% 100% 120% 140% Virex TB Clorox Broad Spectrum CaviCide SaniCloth Plus wipes 1% strain not tested 1% strain not tested FR PC/ABS failed FR PC/ABS failed FR PC/ABS failed FR PC / ABS (1.0% Strain) FR PC / ABS (1.5% Strain) Trilliant HC (1.0% strain) Trilliant HC (1.5% strain) TENSILE STRENGTH RETENTION AFTER 7 DAYS EXPOSURE Both materials were tested according to ASTM D543 for 7 days.

Flame Retardant Polyolefin: Maxxam™ FR

XB70 G30 Black Na MAXXAM C50 H-AS WHITE 70 PP FR 8-6 LMS-1000

Bergamid™ FR Non-Halogen Flame Retardant Formulations Maxxam™ FR Flame Retardant Formulations and Maxxam™ NHFR Non-Halogen Flame Retardant Formulations Maxxam™ Foamable Formulations

Maxxam polyolefin replaces aluminum and reduces weight in electric vehicle part Maxxam™ FR Flame Retardant Formulations provided certified material and added durability to vacuum battery pack and cover

Hammerhead™ FR Flame Retardant Composite Panels Bergamid™ FR Non-Halogen Flame Retardant Formulations Maxxam™ FR Flame Retardant Formulations and Maxxam™ NHFR Non-Halogen Flame Retardant Formulations

BLACK PVC TARGET WHITE CHIP CC10337510 - HC7473 (T PP FR 8-6 LMS-1000

A range of colorants created without the addition of carbon black pigment. It permits black and dark polymers to be detected by near infrared (NIR) automatic sorting equipment. Maxxam™ FR formulations met stringent UL 444 standards and saved costs for a major wire & cable producer