PolyOne Corporation, with 2018 revenues of $3.5 billion, is a premier provider of specialized polymer materials, services and solutions. Michelle Maniscalco Senior Manager, Marketing Communications PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com Company Officers

SHANGHAI – April 3, 2024 – Avient Corporation, a premier provider of specialty and sustainable materials solutions and services, will showcase its extensive range of sustainable and specialty colorants and additives for both rigid and flexible packaging at Propak Vietnam 2024, one of Vietnam’s premier trade fairs for the packaging industry. Avient Corporation provides specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Company Officers

Avient Corporation (NYSE: AVNT), with 2021 expected revenues of $4.3 billion, provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@avient.com Company Officers

Avient Corporation (NYSE: AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Media contact Nicole DeChant Avient Corporation nicole.dechant@avient.com Company Officers

About PolyOne PolyOne Corporation, with 2016 revenues of $3.3 billion, is a premier provider of specialized polymer materials, services and solutions. Marketing Communications Manager, Asia PolyOne Corporation +86 21 60284888 jennifer.huang@avient.com Company Officers

PolyOne Corporation, with 2017 revenues of $3.2 billion, is a premier provider of specialized polymer materials, services and solutions. Michelle Maniscalco Senior Manager, Marketing Communications PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com Company Officers

About PolyOne PolyOne Corporation, with 2015 revenues of $3.4 billion, is a premier provider of specialized polymer materials, services and solutions. Naomi Bennett PolyOne Corporation Marketing Communications Manager +44 151 632 8800 naomi.bennett@avient.com Company Officers

Additionally, the grades are formaldehyde-free, addressing VOC concerns in manufacturing versus POM. Industrial – conveyor belts • Electronics – gears & switches • Appliance – pumps & spigots PRODUCT BULLETIN 1.844.4AVIENT www.avient.com Copyright © 2021, Avient Corporation.

The technology addresses the limitations of traditional APET thermoformed cups and containers, which can only be used up to 60°C, by increasing its heat stability to up to 100°C. MARKETS & APPLICATIONS • Thermoformed, APET food packaging, including: - Hot steam sterilization - Hot fill - Microwave use • Polyester • Sheet extrusion & thermoforming KEY CHARACTERISTICS • Suitable for hot steam sterilization, hot fill, and microwave applications • Ideal for food-grade containers with high rigidity and improved gas barrier • Can withstand temperatures up to 100°C • Available in both transparent and opaque options • Processable on existing thermoforming lines with heated molds KEY BENEFITS • A fully circular monomaterial, up to 100% rPET polymer content • Promotion of the circularity of PET and the resulting packaging is possible • Helps customers to comply with the Packaging and Packaging Waste Regulation (PPWR) that demands recyclability of all packaging with binding PCR content targets by 2030 • Demonstrates improved productivity in comparison to CPET during thermoforming • Helps avoid possible EPR fees or penalties on difficult-to-recycle packaging PRODUCT BULLETIN Copyright © 2025, Avient Corporation.

Patterson, Chairman, President and Chief Executive Officer, Avient Corporation. 1 Mr. For the same reasons, the Company is unable to address the probable significance of the unavailable information. 4 Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G. These costs are included in Corporate and eliminations.