Validity of this certificate is based on the successful completion of the periodic surveillance audits of the management system defined by the above scope and is contingent upon prompt,written notification to ABS Quality Evaluations, Inc. of significant changes to the management system or components thereof.

OFF-ROAD VEHICLE MANUFACTURER S E A T P A N • Consolidate parts to reduce assembly time and lower manufacturing costs • Maintain performance while replacing metal seat pan with lightweight composite material • Aided consolidation of multiple metal parts and fasteners into a single injection molded component, lowering costs $100k year • Saved time and money using FEA validation to confirm real-world performance before building tooling • Created full-size 3D printed prototypes to test fit and function Complēt™ Long Glass Fiber Nylon Composite KEY REQUIREMENTS WHY AVIENT?

SCORPYD™ CROSSBOW I N T E G R A T E D R A I L A N D R I S E R • Reduce weight by replacing aluminum • Integrate bolt rail and riser for supporting limbs into unified assembly • Achieved a 40% weight reduction to improve handling and firing ease • Provided structural design services to create industry-first integrated rail and riser assembly • Conducted FEA performance analysis to confirm long carbon fiber reinforced composite met extreme requirements Complēt™ Long Carbon Fiber ETPU Composite KEY REQUIREMENTS WHY AVIENT?

OFF-ROAD VEHICLE MANUFACTURER U N I F I E D S E A T I N G S H E L L • Consolidate parts to reduce manufacturing costs • Maintain performance while replacing metal seating frame with lightweight composite material • High durability to withstand harsh usage environments • Delivered long glass fiber reinforced thermoplastic solution providing metal-like performance with excellent toughness • Lowered component costs with single-piece injection molded seat shell • Utilized global capabilities to meet manufacturing supply chain needs Complēt™ Long Glass Fiber PA66 Composite KEY REQUIREMENTS WHY AVIENT?

WHEELCHAIR OEM C A S T E R W H E E L • Composite to replace a traditional aluminum caster • Lightweight, strong material that can withstand the rigor of daily use • Corrosion-resistant solution to reduce cost and frequency of maintenance • Formulated two materials that chemically bond seamlessly to minimize slip • Reduced weight by 33% (280g), supporting improved user maneuverability • Offered an injection-moldable alternative to metal that led to a more functional design and reduced vibration Complēt™ Long Carbon Fiber Nylon 6/6 and TPU Formulations KEY REQUIREMENTS WHY AVIENT?

CRAFTECH® N O N - M E T A L L I C F A S T E N E R S • Corrosion resistance • Electrical isolation • Strength performance similar to competitive products made of metals • Supplied pre-colored long fiber reinforced composites for consistent appearance • Formulated an LFT solution to meet key performance needs and strength to compete against metal alternatives • Delivered custom formulated materials on- time with short lead times and in low release quantities Complēt™ Long Glass Fiber ETPU Composite KEY REQUIREMENTS WHY AVIENT?

AEROSPACE INTERIORS OEM S E A T S P A C E R & A R M R E S T • Weight reduction to increase airliner fuel economy • Meet FAA safety requirements for FST compliance and 16G kinetic survivability • Agility to delivery solution within 8-month compressed product development timeline • Achieved 40% weight reduction generating $16,000 per year reduction in fuel costs • Optimized component designs for long fiber material and conducted FEA validation • Performed prototype molding and testing for load and impact specifications to expedite development Complēt™ Long Carbon Fiber PES Composite KEY REQUIREMENTS WHY AVIENT?

PERSONAL WATERCRAFT OEM S T E E R I N G C O L U M N • Similar strength performance to existing aluminum assembly • Withstand outdoor UV exposure • Weight reduction for improved performance • Corrosion and moisture resistance • Premium aesthetic • Provided a material that met application load requirements and allowed for part consolidation • Delivered confidence in changing material through design consultation, robust FEA support, and UV customization • Incorporated carbon fiber to support a marketing story Complēt™Hybrid Moisture Resistant Composite KEY REQUIREMENTS WHY AVIENT?

That’s Avient. 21,000+ CUSTOMERS >75% ARE CUSTOMIZED SOLUTIONS TO UNIQUE SPECIFICATIONS of sales 5 In July 2020, we completed the acquisition of the Clariant Masterbatch business, the largest acquisition in the 20-year history of our company. Our free cash flow supports shareholder value creation through investing in R&D for organic growth, completing bolt-on acquisitions, and returning cash to shareholders via our dividend program and opportunistic share repurchases. 30 1. With the Clariant Masterbatch acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets, with increased geographic diversification and a more specialized portfolio that can significantly expand EBITDA margins. 31 Avient reflects 2021 estimated EBITDA of $580M OUR VALUATION VERSUS PEERS Avient Specialty Other 9.5 18.5 15.1 15.1 14.0 11.0 10.4 29.5 28.2 23.9 18.7 12.4 12.2 11.1 9.3 9.2 9.2 7.6 7.6 6.0 en t Median: 11.1xMedian: 14.6x SUMMARY: WHY INVEST IN AVIENT?

The supplier should complete the QF-05 Supplier Self Assessment Audit Form (DOC-03818) to demonstrate quality conformance and accept Avient’s Supplier Change Notification. Avient reserves the right to request the completion of the supplier assessment based upon quality recommendation regardless of supplier accreditation status. Evaluations are completed using the Avient Supplier Risk Matrix which identifies “high-”, “medium-” and “low-risk” suppliers based upon the following inputs: total business impact, supplier performance, and QMS profile (certification and self-assessment completion).