No. 0562.01) Revised 05/31/2022 Page 1 of 1 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 AVIENT CORPORATION 733 East Water Street North Baltimore, OH 45872 Claire Holman Phone: (419) 257-1327 MECHANICAL Valid To: October 31, 2023 Certificate Number: 0562.01 In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this laboratory to perform the following automotive plastics tests: Test Method: Test Name: ASTM D412 Tensile ASTM D523 Specular Gloss ASTM D618 (A) Conditioning of Plastics ASTM D624 (Die C) Tear Strength ASTM D638 Tensile Properties ASTM D792 (A) Density and Specific Gravity by Displacement ASTM D1004 Initial Tear Resistance ASTM D1203 (A) Volatile Loss ASTM D1895 (A) Apparent Density, Bulk Factor, Pourability ASTM D1921 Particle Size (Sieve Analysis) ASTM D2240 Durometer Hardness (Shore A and D) ASTM E1331 Color by Spectrophotometry Using Hemispherical Geometry FMVSS 571.302 Flammability FORD BN-102-01 (A) Low Temperature Flexibility FORD BO-131-03 Interior Odor ISO 3795 Determination of Burning Behavior of Interior Materials SAE J323 (A) Cold Cracking (Mandrel Bend) SAE J1351 Hot Odor for Insulation Materials SAE J1545 Instrumental Color Difference Measurement SAE J1756 Fogging Characteristics of Interior Automotive Materials (Photometric Only) DOC-058151 Angle of Repose 1 Laboratory Developed Method For the tests to which this accreditation applies, please refer to the laboratory’s Mechanical Scope of Accreditation. Presented this 25th day of October 2021. _______________________ Vice President, Accreditation Services For the Accreditation Council Certificate Number 0562.01 Valid to October 31, 2023 0562-01 0562-01c

We then provide vital insight into the material selection, design, molding, and manufacturability to solve the biggest challenges. Product Validation Molding With Customer Tooling • Avient also has the ability to bring customer tooling onsite to conduct trials. Application Demonstrator Molds Functional Performance Demonstrator Molds Structural Performance Demonstrator Molds COMPUTER-AIDED ENGINEERING (CAE) We utilize a combination of CAE tools to virtually simulate real-world application performance.

CERTIFICATE OF INCORPORATION ON CHANGE OF NAME Company Number 3141094 The Registrar of Companies for England and Wales hereby certifies that under the Companies Act 2006: POLYONE CORPORATION UK LIMITED a company incorporated as private limited by shares, havingits registered office situated in England and Wales, has changed its name to: AVIENT MATERIAL SOLUTIONS UK LIMITED Given at Companies House on9th November 2021.

We then provide vital insight into the material selection, design, molding, and manufacturability to solve the biggest challenges. Product Validation Molding With Customer Tooling • Avient also has the ability to bring customer tooling onsite to conduct trials. Application Demonstrator Molds Functional Performance Demonstrator Molds Structural Performance Demonstrator Molds COMPUTER-AIDED ENGINEERING (CAE) We utilize a combination of CAE tools to virtually simulate real-world application performance.

BATTERY JUNCTION BOX Stat-Tech™ Static Dissipative & Electrically Conductive Formulations Surround™ EMI/RFI Shielding Formulations • Integrated EMI/RFI shielding • Lightweight • Easier to process vs metals MODULE CONNECTOR Therma-Tech™ Thermally Conductive Formulations • Flame resistance • Easy molding • Good stiffness and mechanical strength • Thermal conductivity EV CONNECTOR Edgetek™ PKE Polyketone Formulations • Excellent chemical resistance • Low moisture uptake • Non-halogenated flame retardant performance • Colorable (RAL Orange) • Reduced carbon footprint vs PA6 and PA66 COOLING SYSTEM Therma-Tech™ Thermally Conductive Formulations • Tensile strength • Chemical resistance • Thermal conductivity BATTERY FRAME Maxxam™ FR Flame Retardant Polyolefin Formulations Edgetek™ Engineered Polymer Formulations Polystrand™ Continuous Glass Fiber Reinforced Thermoplastics • Flame resistance • Easy molding • Lightweight • Non-halogenated flame retardant HOUSING TRAY OnForce™ Long Glass Fiber Reinforced Polypropylene Composites Stat-Tech™ Static Dissipative & Electrically Conductive Formulations Polystrand™ Continuous Glass Fiber Reinforced Thermoplastics • Design integration & freedom • Structural performance • EMI shielding BATTERY MANAGEMENT CONTROLLER Stat-Tech™ Static Dissipative & Electrically Conductive Formulations Surround™ EMI/RFI Shielding Formulations • Integrated EMI/RFI shielding • Lightweight • Easier to process vs metals BATTERY HOUSING/COVER OnForce™ Long Glass Fiber Reinforced Polypropylene Composites Complēt™ Long Fiber Reinforced Structural Thermoplastics • Metal replacement • Lightweighting • Flame retardancy • Structural performance • Design integration & freedom Polystrand™ Continuous Glass Fiber Reinforced Thermoplastics • Localized biaxial reinforcement • Impact performance • Overmolding compatibility • Flame retardancy • Integrated assembly point stiffening ENGINEERED MATERIALS FOR EV BATTERIES CELL MODULE Therma-Tech™ Thermally Conductive Formulations • Flame resistance • Easy molding • Good stiffness and mechanical strength • Thermal conductivity UNDERBODY PROTECTION Polystrand™ Continuous Glass Fiber Reinforced Thermoplastics • Superior impact performance • Significantly lighter than steel • Simplified integration with housing • Corrosion resistance • Flame retardancy

Overmolding integrates Polystrand tapes and multi- ply laminates into traditional thermoplastic molding processes, such as injection and compression molding, to create locally-reinforced, molded components. Read the Rome Snowboard Binding Case Study bit.ly/34PG0a6 Incorporating Polystrand CFRTP reinforcement in molded thermoplastic components combines the design flexibility and fast cycle times of traditional molding with the strength, stiffness, and lightweighting benefits that composites offer, all with the use of standard processing equipment. Mold to compress and cool into shape 4 CFRTP is preheated and inserted into tool 3 Material heating, melting, and conveying 2 Solid resin infeed 1 5 ON-ROAD TRANSPORTATION Underbody shields, underhood enclosures, interior components, storage OFF-ROAD VEHICLES Skid plates, doors, seat structures, exterior panels & moldings Traditionally, molding with short and long glass-filled polypropylene to gain flexural performance over unfilled polypropylene also results in a loss of impact resistance.

For these reasons, it is often required to over mold TPE immediately after molding the nylon substrate. NYLON MOLDING PROCESS Bonding is also affected by mold design and nylon molding conditions. INSERT MOLDING Insert molding data is reported in Table 3 and Figures 4 through 9.

Also available for custom plasticizers, these dispersions can help you achieve ultimate control and uniformity for your dipping, roto-cast and slush molding applications.

Molded-in color hides scratches, withstands tough weather and helps you optimize manufacturing efficiency

Reusable concentrates significantly reduce time spent cleaning extrusion and injection molding equipment.