MSC Certificate Place and date: For the issuing office: Høvik, 23 January 2025 DNV Product Assurance AS Veritasveien 1, 1363 Høvik, Norway Cecilie Gudesen Torp Management Representative Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid.

CESA Fiber Additives for Heat Preservation ProductBulletin_CN4.27-2 CESA™ 红外蓄热纤维添加剂 1.844.4AVIENT www.avient.com 版权所有©2021 埃万特公司。

Versaflex CE TPEs for 5G Application Bulletin_CN8.26-2 VERSAFLEX™ CE TPEs 实现 5G 信号高速传输 应用公告 主要特性 为实现信号高速传输和连接提供卓越的介电性 能及较低的信号损耗 与标准 TPEs 相比，具有更低的介电常数（Dk） 和介电损耗（Df） 物理性能优越、耐紫外线、美观 行业&应用 Versaflex™ CE 3140 TPEs 专为手机保护壳研制， 最大限度地减少信号损耗，实现 5G场景中终端设 备的高速连接，为消费者提供无缝使用体验。

SN Registrars (Holdings) Limited Certificate Number: DAS 65732900/31/Q Rev: 003 Registration House, 22b Church Street, Rushden, Northamptonshire, NN10 9YT, UK Tel: +44 (0) 1933 381859 Email: enquiries@snregistrars.com Web: www.snregistrars.com Company number: 07659067 mailto:enquiries@snregistrars.com http://www.snregistrars.com/

SN Registrars (Holdings) Limited Certificate Number: DAS 18788177/31/E Rev: 001 Registration House, 22b Church Street, Rushden, Northamptonshire, NN10 9YT, UK Tel: +44 (0) 1933 381859 Email: enquiries@snregistrars.com Web: www.snregistrars.com Company number: 07659067 mailto:enquiries@snregistrars.com http://www.snregistrars.com/

Khandpur. 2 “From a regional perspective, Asia and Latin America delivered strong results, growing organic sales 9% and 17%, respectively,” Dr. EMEA delivered a fourth consecutive quarter of growth, increasing organic sales by 2%. Conference call participants in the question and answer session should pre-register using the link at avient.com/investors, or here, to receive the dial-in number and personal PIN.

Environment • Ensure systems are in place for safe handling, storage, recycling, reuse and management of waste, air emissions and wastewater discharges. Ensure systems are in place to prevent or mitigate accidental spills and releases into the environment

Environment • Ensure systems are in place for safe handling, storage, recycling, reuse and management of waste, air emissions and wastewater discharges. Ensure systems are in place to prevent or mitigate accidental spills and releases into the environment

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