质量管理体系认证认证 Certificate No.：04624Q15809R1S We hereby certify that the organization: Fiber-Line Asia Pacific (Changzhou) Co., Ltd. Unified social credit code: 91320412MA1NMF5W4P is in conformity with Quality Management System Standard: GB/T 19001-2016 / ISO 9001:2015 The certificate is valid to the following product(s)/service: Coating Processing of Textile (Yarn) and Glass Products (Yarn) Registration Address/ Physical Address: R&D Workshop 5, No. 8, Lanxiang Road, West Taihu Science and Technology Industrial Park, Changzhou City, Jiangsu Province, P.

Contacts Public Contact First Name: * Brian Last Name: * Greer Position: * EHS Manager Telephone: * 5192150535 Ext Fax Email: * brian.greer@polyone.com Person responsible for the Toxic Substance Reduction Plan preparation First Name: * Darryl Last Name: * Chartrand Position: * Senior Air Quality Technologist Telephone: * 4164999000 Ext 73642 Fax 4164994687 Email: * darryl.chartrand@ch2m.com Employees Employees Number of Full­time Employees: * 16 Copy of Certifications of Plan Copy of Certifications of Plan Upload Document A copy of the certification statement(s) from the Highest Ranking Employee and the Licensed Planner(s), for the Toxic Substance Reduction Plan for which the Plan Summary is being submitted are required. Please upload a single document containing all certifications. Do not upload any certification statements that are dated after December 31.

质量管理体系认证认证 Certificate No.：04621Q16559R0S We hereby certify that the organization: Fiber-Line Asia Pacific (Changzhou) Co., Ltd. Unified social credit code: 91320412MA1NMF5W4P is in conformity with Quality Management System Standard: GB/T19001-2016 / ISO9001:2015 The certificate is valid to the following product(s)/service: Textile (Yarn), Glass Products (Yarn) Coating Processing Registration Address/ Physical Address: R&D Workshop 5, No. 8, Lanxiang Road, West Taihu Science and Technology Industrial Park, Changzhou City, Jiangsu Province, P.

Certification instructions. You must sign the certification. You may cross out item 2 of the certification. 4.

October 2018) Department of the Treasury Internal Revenue Service Request for Taxpayer Identification Number and Certification Go to www.irs.gov/FormW9 for instructions and the latest information. Social security number – – or Employer identification number – Part II Certification Under penalties of perjury, I certify that: 1. Certification instructions.

PROFILE/SHEET EXTRUDER R A I L S A N D K I C K P L A T E S • Convert existing PVC profile and sheet rails and kick plates to polyethylene resin to meet Class A fire safety (ASTM E84) • Provide a system that meets healthy building certifications and approvals • Utilize a more sustainable flame retardant technology, removing brominated or halogenated flame retardants from the environment • Achieve non-compromising performance in aesthetics, impact, dimensional stability, CLTE, and E84 testing • Provided non-halogenated flame retardant platform, backed by extensive application and industry expertise, to meet global flammability standards • Has largest UL94 recognized Prospector membership with HB, V-0, V-1, V-2 and 5VA/5VB ratings, and broad glow wire performance products • Included in-house UL certified labs and manufacturing locations to perform UL94 material sampling and testing • Supported application development to meet fire safety standards, address current or emerging healthy building codes, smart home requirements, and LEED credits • Offered custom formulations in small lot quantities Cesa MAX Flame Retardant Additives KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION CERTIFICATIONS + QUALITY LEARN MORECopyright © 2022, Avient Corporation.

No. 0562.01) 11/30/2023 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, 2025 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 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. Trace McInturff, Vice President, Accreditation Services For the Accreditation Council Certificate Number 0562.01 Valid to October 31, 2025 0562-01 0562-01c

MAIA+ N° rapport :223-2023-000066-FR 10898066 0.5 jour Date Début / Fin :04/11/2022 /04/11/2022 PolyOne France - site de Saint Ouen l'Aumône 1 /11 ATTESTATION DE RECONNAISSANCE Attribué à PolyOne France - site de Saint Ouen l'Aumône 14 avenue de l'Eguillette / ZA du Vert Galant 95310 - SAINT OUEN L'AUMONE - FRANCE Bureau Veritas Certification certifie que les prestations de l’entreprise susmentionnée ont été évaluées et jugées conformes aux caractéristiques énoncées dans le décret en vigueur à la date d’édition du présent certificat : Décret n°2021-461 du 16 avril 2021 relatif à la prévention des pertes de granulés de plastiques industriels dans l’environnement Sous réserve du respect des caractéristiques vérifiées, cette attestation est valable jusqu’au : 16/02/2026 Date originale : 17/02/2023 Attestation n°: 223-2023-000066-FR Date : 17/02/2023 Affaire n°: 10898066 Laurent CROGUENNEC - Président Adresse de l’organisme certificateur : Bureau Veritas Certification France Le Triangle de l'Arche - 9 Cours du Triangle - 92937 Paris La Défense Des informations supplémentaires concernant le périmètre de cette attestation ainsi que l'applicabilité des exigences du décret peuvent être obtenues en consultant l'organisme.

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

No. 0514.02) 12/11/2023 Page 1 of 1 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 AVIENT CORPORATION – ANALYTICAL SOLUTIONS 33587 Walker Road Avon Lake, OH 44012 Stephanie Mims Phone: 440-930-3499 CHEMICAL Valid To: September 30, 2025 Certificate Number: 0514.02 In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this laboratory to perform the following rubber and plastics tests: Test Description: Test Method or Standard: FTIR (Fourier Transform Infrared) Spectroscopy ASTM E1252 (Except 7.6, 11.2, and 11.4) Flammability Horizontal Burn of Self-Supporting Plastics ASTM D635; UL 94; IEC 60695-11-10 Horizontal Burn of Materials Used in Occupant Compartments of Motor Vehicles ASTM D5132; FMVSS 302 (49 CFR 571.302); ISO 3785 Vertical Burn, 20 mm ASTM D3801; UL 94; IEC 60695-11-10 Vertical Burn, 125 mm ASTM D5048; UL 94; IEC 60695-11-20 Thin Material Burning Test UL-94 Glow Wire Test IEC 60695 2-10, 2-11, 2-12, 2-13 Thermal Analysis DSC (Differential Scanning Calorimetry) ASTM D3418, E794, E1356 TGA (Thermogravimetric Analysis) ASTM E1131 TMA (Linear Thermal Expansion of Solid Materials by Thermomechanical Analysis) ASTM E831; ISO 11359-2 Karl Fischer Moisture Content ASTM D6869 For the tests to which this accreditation applies, please refer to the laboratory’s Chemical Scope of Accreditation. Trace McInturff, Vice President, Accreditation Services For the Accreditation Council Certificate Number 0514.02 Valid to September 30, 2025 0514-02 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 Test Method or Standard: Test Description: 0514-02c