Avient Avient Rose, Vice President, Corporate Communications, Avient Corporation, +1 440-930-3162, kyle.rose@avient.com

Domestic: 1-844-835-7433 Domestic: 1-855-859-2056 Avient

CLEVELAND, Oct. 1, 2025 /PRNewswire/ -- Avient Corporation (NYSE: AVNT), an innovator of materials solutions, intends to releas October 1, 2025 August 1, 2025

CLEVELAND, Oct. 1, 2025 /PRNewswire/ -- Avient Corporation (NYSE: AVNT), an innovator of materials solutions, intends to releas October 1, 2025 August 1, 2025

Sustainability at Avient Avient Employees Share Inspiring Sustainability Stories How Avient Innovation Enables Sustainability

SEMICONDUCTOR PACKAGING OEM S P E C I A L T Y , S T A T I C D I S S I P A T I V E P A C K A G I N G • Provide protection against electrostatic discharge (ESD) and environmental variations • Ensure highly specialized, clean manufacturing conditions • Deliver stringent quality control of ionic and metal contamination • Maintain availability of raw materials across a global supply chain • Ability to translate production globally • Protected critical electronics from ESD while providing an environmental barrier • Adhered to strict quality and cleanliness controls from raw material handling through production to help maintain high-purity standards, such as ultra-clean feeders, deionized water, and specific HVAC systems, supporting quality initiatives, including PCS reviews, eCoA, and HA assessments • Exceeded customer expectations for controlling ionic and metal contamination down to parts per billion (PPB) • Offered global capabilities with local support and material supply to meet growing semiconductor industry needs Stat-Tech Static Dissipative Formulations KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTIONS QUALITY CONTROL + PERFORMANCE LEARN MORE Copyright © 2024, Avient Corporation. All Rights Reserved. https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/stat-tech-static-dissipative-electrically-conductive-formulations Slide 1: Semiconductor packaging OEM

Avient Corporation Jelölteknek szóló Adatvédelmi nyilatkozat Örömmel vettük, hogy érdeklődik az Avient iránt. Azon joghatóság helyi Avient szervezete, ahová Ön jelentkezik, az Ön személyes adatainak adatkezelője lesz. 1. Hatályba lépés napja: 2020. augusztus 1.

Avient Corporation Candidates Privacy Notice We welcome your interest in working for Avient. The local Avient entity of the jurisdiction for which you are applying for a position will act as a data controller with respect to your personal information. 1. Contact Us If you have any questions or want to exercise any of your rights, you can contact us at: The Corporate Privacy Officer Avient Corporation 33587 Walker Road Avon Lake, Ohio 44012 Email: PRIVACY.OFFICER@AVIENT.COM Phone: 1-800-901-2078 You may also send us your privacy questions or requests through our online form.

Attachment 1 Special items (1) 1)

規制対応 • • • 評価試験*: - ISO 10993-1 - USP および (Class VI) - 欧州薬局方 モノグラフ 3.1.3/ 3.1.5 (ポリオ レフィン系包装材料) - USP (ポリエチレン) - ICH Q3Dに準拠した元素不純物分析 DMF（Type III）および Device Master File 登 録済み 米国FDAおよびEUの食品接触規格 軽量化 ヘルスケア用途に制限ありー下記参照詳しくはAvientにお問い合わせください。 この記述の一般性を制限することなく、Avient 製品は以下を目的とした医療機器用途に使用してはなりません。 1)30日以上、人体組織または体液に暴露すること。