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.

IMPACT PROTECTION D E S I G N A N D M A T E R I A L S O L U T I O N S Avient Corporation 1 PROJECT KICK OFF B R I E F Application: Protective sports equipment Challenge: Provide functional material to protect against impact for chest protector Requirements: • Compact - reduce thickness and weight for improved comfort and functionality • Meet EN standards • EN1621-1 level 2 & EN1621-2 level 1 • Eliminate the use of foam and glue • Be waterproof and easy to clean • Sustainable • Easy to prototype & considers manufacturing efficiency Avient Corporation 2 VIBRATION DAMPING TECHNOLOGY (VDT) H O W D O E S I T W O R K ? Avient Corporation 3 Simplified Drop Test • 65g steel ball • Dropped from 305mm • Onto 3.175mm thickness flat samples Materials Tested • Standard TPE 30 Shore A • TPU alloy 60 Shore A • Damping TPE 32 Shore A VDT reduces bounce Avient Corporation 4 SIMULATION & CALIBRATION E N 1 6 2 1 - 1 L E V E L 2 Image courtesy of Airobag TV https://www.youtube.com/c/AirobagTV/videos Simulation of Impact A weight dropped onto protective element in contact with rigid substrate https://www.youtube.com/c/AirobagTV/videos Avient Corporation 5 SIMULATION & CALIBRATION E N 1 6 2 1 - 1 L E V E L 2 REFINING THE DESIGN D E S I G N A N D M A T E R I A L C O M B I N A T I O N Avient Corporation 6 • A number of different shapes and designs are created and simulated to determine which one works best • Refining to meet EN standard • VDT TPEs can help reach compliance with EN1621-1 level 2 and EN1621-2 level 1 • Optimum protection can be achieved by combining industrial design and engineering Avient Corporation 7 VALIDATION P R O T O T Y P I N G W I T H 3 D P R I N T I N G 3D Printing Validation -15% -10% -5% 0% 5% 10% Density Tensile Strength // Tear resistance // Rebound resilience 2mm 3D Printed VDT vs Injection Molded VDT can be 3D printed for concept evaluation early in the design process SUMMARY Avient Corporation 8 • Enabled a new, compact design with a customized VDT TPE formulation • Improved user comfort and functionality • Fulfilled EN standards • Reduced number of prototyping tools required • Reduced time spent in product development by 40 percent, enabling faster commercialization of product

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.

It is our responsibility at Avient to deliver it. Prior to joining Avient, Ms. RESERVED] 16 AVIENT CORPORATION ITEM 7.

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 Chống độc quyền này bổ sung phần Cạnh tranh của Bộ Quy tắc Ứng xử Avient. Cần nhớ rằng khách hàng và nhà cung cấp của Avient cũng có thể là đối thủ của Avient Trừ khi bạn được sự chấp thuận trước của Phòng Pháp lý Avient, không cố gắng đạt được thỏa thuận từ khách hàng rằng họ sẽ mua tất cả các yêu cầu của một sản phẩm cụ thể chỉ từ Avient, rằng họ sẽ giao dịch độc quyền với Avient hoặc họ sẽ không mua hay xử lý các sản phẩm cạnh tranh.

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. 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 không cho phép lập hoặc sử dụng bất kỳ tài khoản ”ngoài sổ sách” hoặc “quỹ đen” nào.

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.

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. For the same reasons, Avient is unable to address the probable significance of the unavailable information.