Media contact Nicole DeChant  Avient Corporation  nicole.dechant@avient.com Media Relations Contacts Company Officers

Media Contact Nicole DeChant Avient Corporation nicole.dechant@avient.com Media Relations Contacts Company Officers

Pro Forma Financial Information The Company acquired Avient Protective Materials (“Dyneema”) on September 1, 2022 (the “Acquisition Date”) and sold the Distribution segment on November 1, 2022. Innovation is the lifeblood of a specialty company. The presentation of these measures may be different from non-GAAP financial measures used by other companies.

Each of such adjustments has not yet occurred, are out of the Company's control and/or cannot be reasonably predicted. For the same reasons, the Company is unable to address the probable significance of the unavailable information. The presentation of these measures may be different from non-GAAP financial measures used by other companies.

Each of such adjustments has not yet occurred, are out of the Company's control and/or cannot be reasonably predicted. For the same reasons, the Company is unable to address the probable significance of the unavailable information. To provide comparable financial results, the Company references “pro forma” financial metrics, which include the business results of CMB for periods prior to the Acquisition Date.

According to a McKinsey & Company report, modular projects: • have established a solid track record of accelerating project timelines by 20 to 50% • can deliver over 20% in construction cost savings when optimized for scale In a survey conducted by Prefab Modular Smart Market Report (2020): • 91% of contractors reported improved budget performance when using modular techniques • 68% of these indicated savings of 5% or higher • respondents indicated reductions in project durations of 20 to 50% Another factor—the well-publicized shortage of available and affordable housing stock—is also contributing to the rise of modular construction, particularly in urban areas with high demand and limited space. Contact us at +1.844.4AVIENT (1.844.428.4368) or visit avient.com Copyright © 2025, Avient Corporation.

Nutritional components in dairy products are photosensitive, making them susceptible to light degradation • Light protection in dairy packaging helps maintain product integrity and extend shelf life A LIGHT BLOCKING SOLUTION THAT PROVIDES: • Light blocking and whiteness in PET dairy packaging • Protection from 2 weeks up to 12 months shelf life • Compatibility with monolayer and multilayer PET preforms • Full compatibility with rPET • Food contact approved (region dependent) • Low TiO₂ levels to increase recyclability, aligning with the emergence of white recycle streams PASTEURIZED MILK Typical shelf life 5–10 days WHITE COLOR LACTRA ESL LACTRA SX or LACTRA 4 EXTENDED SHELF LIFE MILK Typical shelf life 2 weeks–3 months UHT MILK & PRODUCTS Typical shelf life 4–12 months Lightweighting/CO2 reduction Reduced LDR – material & cost savings Improved processing performance BENEFITS OF COLORMATRIX™ LACTRA™ Improved bottle performance Compatibility with rPET Helps to Protect Performance Energy efficiency Whiteness 85–92 L* 30% less life cycle emissions Increased machinery life cycle due to reduced wear & tear 80–100% light blocking performance © 2024, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012

Each of such adjustments has not yet occurred, are out of the Company's control and/or cannot be reasonably predicted. For the same reasons, the Company is unable to address the probable significance of the unavailable information. To provide comparable financial results, the Company references “pro forma” financial metrics, which include the business results of CMB for periods prior to the Acquisition Date.

reporting  companies  that   manufacture  products  (or  have  others  manufacture  products)  that  contain  3TG  metals  or  their  derivatives   (tantalum,  tin,  tungsten  and  gold)  that  are  necessary  to  product  functionality  or  production  are  required  to  assess   their  supply  chains  and  report  to  the  SEC  on  whether  those  materials  are  sourced  from  the  Democratic  Republic  of   Congo  and  adjoining  countries.       As an American Chemistry Council ResponsibleCare® Company and a founding member of the Alliance to End Plastic Waste, we are further committed through our landmark No Surprises PledgeSM and our Sustainability Promise.

12950 Worldgate Drive, Suite 800, Herndon, VA 20170-6007 USA A Member of the BSI Group of Companies. Americas Headquarters: BSI Group America Inc., 12950 Worldgate Drive, Suite 800, Herndon, VA 20170-6007 USA A Member of the BSI Group of Companies.