Patterson, Chairman, President and Chief Executive Officer, Avient Corporation. Webcast Details Avient will host a webcast on 2022年11月2日（星期三） at 8:00 a.m. To access Avient’s news library online, please visit www.avient.com/news # # # Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations Avient Corporation +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G.

Gajewski joined Avient in July 2013 from AkzoNobel/PPG and has since taken on multiple roles with increasing responsibility within the Human Resources function, including HR Director for Avient’s Color, Additives & Inks business segment, and an international assignment with responsibility for the EMEA and India regions. Gajewski led Avient’s learning and organizational development programs, talent management and acquisition, as well as working as the HR Director for all global Corporate Functions. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com

Rose joined Avient in 2011 and has led communications aspects and initiatives during the company’s specialty portfolio and cultural transformation. He also serves as the Executive Sponsor of Avient’s United Way and Global Giving campaigns, as well as the company’s young professional network. Before his tenure at Avient, Mr.

Chính sách này áp dụng đối với Avient và các công ty con, bao gồm tất cả các quản lý, nhân viên, đại lý và các bên thứ ba khác làm việc thay mặt cho Avient. Để tuân thủ các Luật ABAC, tất cả các nhân viên Avient và bên thứ ba làm việc thay mặt Avient không 2 Bao gồm tất cả các viên chức chính phủ và/hoặc nhân viên khu vực tư nhân. Nhân viên Avient và các bên thứ ba cần tránh mọi hoạt động có thể dẫn đến hoặc gợi ý rằng Avient sẽ cho hoặc nhận thanh toán bôi trơn hoặc lại quả.

Avient müşterileri ve tedarikçilerinin de Avient’ın rakipleri olabileceği unutulmamalıdır Amiriniz veya herhangi bir Avient müdürü • Kurumsal Etik Yetkilisi e-posta: ethics.officer@avient.com • Avient Baş Hukuk Müşaviri e-posta: legal.officer@avient.com • Hukuk bölümünün herhangi bir üyesi • Avient Etik Yardım Hattı Avient Etik Yardım Hattı Etik Yardım Hattı dünya genelinde 20’den fazla dilde, haftanın 7 günü, günde 24 saat, telefonla ve web sitesi aracılığıyla hizmet verir. Herhangi bir sorunuz varsa Avient Hukuk Departmanına danışın. 14.

在本準則中， 「Avient 員工」包括跨 Avient 子公司的 Avient 員工、董事、代理 商、顧問與承包商。Avient 主管與經理的其他職責 • 以身作則，為 Avient 的適當行為奠定基調。Avient 禁止員工在酒精、非法藥物與其他管制物質的影 響下代表 Avient 工作。

在本准 则中，“Avient 员工”包括 Avient 所有子公司的员工、董事、代理 人、顾问和承包商。Avient 主管和经理的其他责任 • 发挥榜样作用，为 Avient 的恰当行为确立基调。Avient 禁止员工在酒精、毒品和其他管制物品的影响下 代表 Avient 开展工作。

Avient’s chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of Avient and each business segment and to allocate resources. Each of such adjustments has not yet occurred, are out of Avient’s control and/or cannot be reasonably predicted. Senior management believes the measures described above are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude.

AVIENT RESPONSIBLE CARE POLICY Avient Corporation conducts its operations in a manner that is protective of the environment, and the health, safety and security of associates, customers, and all our stakeholders, including the communities in which we operate. It is the responsibility of every associate at Avient, including contractors, to understand these commitments and support them through their daily actions including conformance with our programs and procedures, making safe decisions and protecting our natural resources. To assist in reaching these commitments, Avient is a proud member of the American Chemistry Council and have committed to their Responsible Care Guiding Principles to guide our efforts in continual improvement.

Sequeira joined Avient in May 2024, bringing nearly 25 years of experience in information technology to this role. Before joining Avient, Mr. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com