CNSUZ3-SUH9-20240123104552 QUALITY MANAGEMENT SYSTEM\,, CERTIFICATE Certificate No. 00124Q30506R5S/3200 We hereby certify that Color Matrix Plastic Colorants (Suzhou) Co., Ltd Business Registration Number: 91320505799067336K Registered I Operation Address: 13 Plant, No.855, Zhujiang Road, Suzhou New District, Jiangsu Province, China by reason of its Quality Management System has been awarded this certificate for compliance with the standard ISO 9001:2015 The Quality Management System Applies in the following area: Production Activities of Plastic Colorant & Additive (UV Blockers, Anti-Oxidation, Anti-Aging) Certified since: January 8, 2009 Valid from: January 16, 2024 Valid until: January 4, 2027 the expiry date of last certification cycle: January 4, 2024 the date of recertification audit: December 21, 2023 to December 22, 2023 After a surveillance cycle, the certificate is valid only when used together with an Acceptance Notice of Surveillance Audit issued by CQC. � IQNET CHINA QUALITY CERTIFICATION CENTRE Section 9, No.188, Nansihuan(the South Fourth Ring Road) Xilu(West Road), Beijing 100070, China http://www.cqc.com.cn A 0082281 2022.$!

10/01/2024, 04:45 pm Avient 2024 CDP Corporate Questionnaire 2024 Word version Important: this export excludes unanswered questions This document is an export of your organization’s CDP questionnaire response. Terms of disclosure for corporate questionnaire 2024 - CDP . https://www.cdp.net/en/info/terms-and-conditions/terms-of-disclosure/corporate-questionnaire 1 Contents 2 C1.

ECert - 2023-09-20T092923.129.pdf Page 1 of 7 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. ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A. This is to certify that the Quality Management System of: Avient Corporation - HQ 33587 Walker Road The Quality Management System is applicable to: Certificate No: 31307 Certification Date: 12 October 1995 Effective Date: 20 September 2023 Expiration Date: 07 October 2025 Revision Date: 20 September 2023 Dominic Townsend, President MANUFACTURE AND SUPPLY OF PLASTIC COMPOUNDS, COLOR AND PERFORMANCE ADDITIVES, ENGINEERED THERMOPLASTICS, VINYL RESINS, CUSTOM MIXED PLASTIC MATERIALS, CUSTOM AND COMMODITY COLORANTS FOR PLASTICS, POLYURETHANE SYSTEMS, AND PLASTICIZERS WITH DESIGN AND SAMPLING SUPPORT AT SUWANEE, GA, AND PURCHASING, CUSTOMER SERVICE, LOGISTICS, QUALITY, DESIGN AND SAMPLING SUPPORT AT AVIENT CORPORATE HEADQUARTERS AT AVON LAKE, OH, AND DISTRIBUTION OF RESINS This certificate may be found on the ABS QE Website (www.abs-qe.com).

It enables: • Increased rPET content • Reduced CO2 emissions When added to PET preforms and bottles, ColorMatrix AAzure helps to: • Improve bottle quality - Reduced preform acetaldehyde by up to 80% - Improved mechanical strength - Lightweighting • Improve processability - Reduced bottle blowouts - Reduced scrap - Improved productivity • Reduce energy consumption during bottle blowing process ColorMatrix AAzure has a slight blue tint, which is useful for off-setting yellowing often associated with the use of rPET, and has minimal impact on final product color or aesthetics. INCREASED rPET CONTENT & IMPROVED QUALITY Reduced Preform Acetaldehyde Levels Acetaldehyde generation in the pre- form can lead to issues with taste and odor for bottle contents. LD R (% Impact of 5 Melt Heat Histories on Preform Color Reference ColorMatrix AAzure Reduction in AA Level 35% 55% 70% ColorMatrix AAzure allows for further optimization of the polymer weight distribution during the bottle blowing process, which improves mechanical strength and bottle quality.

CAUSE AND EFFECT DIAGRAM Methods Machines Materials Manpower energy saving during SBM Maintenance instructions Operating instructions Operator Job spec NIR Lamps SBM Type/Design vPET reheat content vPET formulation rPET blend/quality Temperature recording Temperature measurement probe External temperature Inappropriate Manual Training New Alignment Same Throughput Too many tasks Time conflict Age/intensity variable Set up conditions Configuration - When starting to process a new resin, first run through new preforms for 15 minutes at ‘standard’ conditions to establish steady state conditions prior to any process optimization - Slowly start to reduce preform blowing temperatures until failures are present (visible pearl internal wall or pearl feet) - Increase blowing temperatures until defects are eliminated - QC check bottle quality for acceptance versus established tolerances - Change the power consumption profile in the ovens for early heat and longer sink times but ensure overall temperatures do not exceed cold crystallization temperature - Repeat temperature reduction stage and then defect elimination stage to test if further optimization is possible - Recheck QC bottle quality for acceptance versus established tolerances - Log all process parameters and create new specific ‘recipe’ for future use www.avient.com Copyright © 2020, Avient Corporation.

This will generate a non-homogeneous dispersion, resulting in sub-standard coloration quality in the PET production process. Furthermore, process blockages and dosing interruptions may result from using such a poor quality feed material. It is usual to take samples for QC analysis from both the preparation and feed tank vessels to ascertain correct dilution strength and dispersion quality on a regular basis.

GLS™ TPE AUTOMOTIVE SOLUTIONS IMPROVE VEHICLE AIR QUALITY WITH TPEs FOR AUTOMOTIVE HVAC FLAPS Vehicle interior air quality in passenger vehicles and strict automotive OEM standards have driven our advancement of these low VOC, low fogging TPEs for use in heating/ventilation/air conditioning seals. Avient’s GLS™ TPEs for automotive HVAC seals are engineered to improve vehicle interior air quality (VIAQ), and have been shown to help achieve global OEM requirements when externally tested against industry standards.

Plastisols provided needed quality and performance for this aircraft interior OEM Versaflex™ TPE used to create ergonomic computer mouse with soft-touch qualities Improve vehicle air quality with TPEs for automotive HVAC flaps

Microsoft Word - 55324 Letter of Conformity RCMS Option 2 .docx ABS Quality Evaluations Letter Of Conformity This is to confirm that the Environment, Health, Safety and Security Management System of: PolyOne Corporation 2400 East Devon Elk Grove, IL 60007 U.S.A. WITH ADDITIONAL FACILITIES LISTED ON THE ATTACHED ANNEX) has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: RCMS®:2013 (Option 2) The Environment, Health, Safety and Security Management System is applicable to: Design and Manufacture of Colorants for Plastics Certificate No: 55324 Effective Date 21 December 2017 ABS Quality Evaluations, Inc. 16855 Northchase Drive, Houston, TX 77060, U.S.A.

MONOFIL AMENT MA NUFAC TURER P V D F F I L A M E N T E X T R U S I O N • Reduce or eradicate die build-up • Improve predictive and final part quality • Optimize PVDF extrusion for the desired coefficient of friction (CoF) • Reduce energy consumption • Boosted overall production efficiency by minimizing die build-up through use of a PVDF-specific processing aid • Achieved a flawless surface by reducing friction and improving flow for enhanced final part quality • Controlled extrusion pressure to reduce energy required in processing Colorant Chromatics PVDF Processing Aid KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION EFFICIENCY + QUALITY LEARN MORE Copyright © 2025, Avient Corporation.