Our innovative TPE technologies ensure optimal adhesion in both insert and two-shot molding processes. Collaborating with Avient provides access to a world-class team with expertise in component design, tooling, molding processes, and formulation development. The GLS™ TPE Overmolding Guide is a compilation of more than 25 years of experience in the development, design and processing of overmolding TPEs, based on contributions from a variety of Avient and industry sources.

PolyOne Corporation Page 1 PolyOne Investor Presentation March 2016 PolyOne Corporation Page 2 Forward-Looking Statements  In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. PolyOne Corporation Page 3 Use of Non-GAAP Measures  This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Appendix Recent Acquisitions 2015 Full Year Financial Highlights At a Glance�Color, Additives and Inks At a Glance�Specialty Engineered Materials At a Glance�Designed Structures and Solutions At a Glance�Performance Products and Solutions At a Glance�Distribution Plastics: Key to Future Sustainable Development Application Examples Outdoor Applications Slide Number 32 Authentication Technology Metal Replacement Solutions Range Rover Evoque Interior Slide Number 36 High-Barrier Packaging Containers Aerospace Applications Investor Presentation - March 1, 2016 r36 Investor Presentation - March 1, 2016

CLEVELAND – May 19, 2023 – Avient Corporation, a premier provider of specialized and sustainable material solutions and services, is proud to announce it has earned the LUXE PACK “in green” award, highlighting a Corporate Social Responsibility (CSR) initiative.   Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy   Media contact Nicole DeChant Avient Corporation nicole.dechant@avient.com

Corporate Literature OnColor™ SC Super Concentrate Technologies Increase sustainability, optimize color usage and reduce weight with just one technology

Explore our broad portfolio of composite technologies Pultrusion Technologies: Glasforms™ Sync design with manufacturability: Learn about how Avient Design can help simplify your new product development process

As a global specialized medical grade materials provider, Avient can offer a full range of support from the development to the production of healthcare applications that can help our customers positively impact a patient’s health and well-being.” Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy     Media contact Jennifer Huang  Senior Manager, Marketing Communications Asia  Avient Corporation   +86 21 60284888  jennifer.huang@avient.com

Avient Long Fiber Technology Long Fiber Technologies Application Development Avient long fiber technologies application development center bulletin highlighting services including design support, material validation, simulation support, and in-house prototyping

Avient Corporation. Avient Corporation. Prioritize company-level growth vectors meeting the four-point criteria MARKETS TECHNOLOGY CUSTOMER SCALE 3.

Barrier technologies that preserve the shelf-life and quality of food, beverages, medicine and other perishable goods through high-performance materials that require less plastic Breakthrough technologies that minimize wastewater and improve the recyclability of materials and packaging across a spectrum of end uses Jennifer Huang Senior Manager, Marketing Communications Asia Avient Corporation +86 21-6028-4888 jennifer.huang@avient.com

This line includes the latest technology available to improve safety, production efficiency, sustainability support, and add value for our stakeholders and customers.   Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy   Media contact Nicole DeChant Avient Corporation nicole.dechant@avient.com