No. 10231X Form W-9 (Rev. 10-2018) AVIENT CORPORATION ✔ 5 D 33587 WALKER ROAD AVON LAKE, OH 44012 3 4 1 7 3 0 4 8 8 7/20/2020

SEM NYMAX PIR Grades Product Selection Guide-CN 4.11-2 产品选购指南 尼龙解决方案 工程热塑性塑料 定制尼龙特性 描述 基材 填充料 增韧 润滑 光 稳定性 热 稳定性 阻燃 批准/列名 Bergamid/ Nymax ✓ ✓ ✓ ✓ ✓ 玻璃纤维 玻璃微珠 矿粉 无填充 玻璃纤维 矿粉 无填充 原生料 再生料 汽车行业批准 汽车行业批准 UL列名 NSF 列名 Nymax PIR ✓ ✓ ✓ ✓ NYMAX REC回收尼龙配方 Nymax REC回收尼龙6和尼龙66产品中20-100%来源于后工 业可回收（PIR）和消费后可回收（PCR）成分。

A full copy of Avient’s Code of Conduct is available in over 20 languages and can be found here: Avient’s Policy on Human Rights can be found here: https://www.avient.com/ https://www.avient.com/company/policies-and-governance-0/code-conduct https://www.avient.com/company/policies-and-governance-0/avients-human-rights-policy Page 2 of 3 Training To mitigate against the risk of non-compliance with our policy, Avient requires all associates to complete mandatory Code of Conduct training.

The demand for flame retardant engineered thermoplastics continues to grow, driven by increasing fire safety performance requirements across all industries. Maxxam™ is an industry standard for fire retardant protection with a proven performance history for nearly 20 years.

CLEVELAND – PolyOne Corporation (NYSE: POL) a premier global provider of specialized polymer materials, services and solutions, today announced the launch of UltraTuf™ SG sheet, a tough, weather-resistant thermoforming sheet for signage and glazing applications.  UltraTuf SG sheet also provides superior heat resistance and ease of fabrication for enhanced design flexibility. With a portfolio of specialty businesses, Eastman works with customers to deliver innovative products and solutions while maintaining a commitment to safety and sustainability.

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PolyOne Corporation Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) PolyOne Corporation Summary of Special Items (Unaudited) (In millions, except per share data) PolyOne Corporation Condensed Consolidated Balance Sheets (In millions)

In millions, except per share data) In millions, except per share data) Condensed Consolidated Balance Sheets

September 20, 2023 In millions, except per share data) Condensed Consolidated Balance Sheets

and adjusted EPS increased 13% (20% excluding negative foreign exchange) to In millions, except per share data) Condensed Consolidated Balance Sheets