Administration, Manufacture, Laboratory, Warehouse Plasticos 28 Santa Clara Coatitla Ecatepec de Morelos Estado de México 55540 Mexico Avient Corporation Administration, Site management (Facitilities, EHS), Manufacture, Laboratory (QC Transport, SCM (DIP, Logistics, CSD, Call-off), QC, Product Stewardship 4 Rothwell Avenue, Albany Industrial Estate Albany 0632 New Zealand 1–A1, Sector 20, Korangi Industrial Area 74900 Karachi Pakistan Avient Pakistan (Private) Ltd. Development and manufacturing of Colorants products (including additive Masterbatch) No. 2 Nan Yun San Rd., Science City 510663 Guangzhou (Shanghai) Ltd. Development and manufacturing of Masterbatch products (including additive Masterbatch) No 88 Lane 4377 Jindu Road 201108 Shanghai Page 4 of 4

In questo Codice, il termine “dipendenti di Avient” include dipendenti, direttori, agenti, consulenti e appaltatori di Avient di tutte le consociate di Avient. subject= http://avient.com/sustainability https://www.avient.com/company/sustainability/sustainability-report/products/no-surprises-pledge-0 D: il mio supervisore mi ha chiesto di seguire una nuova procedura di smaltimento dei rifiuti ma non sono certo che sia sicura o addirittura legale. Ciascuno di noi può adempiere alle proprie responsabilità seguendo le pratiche delineate nel codice e: • Seguendo un comportamento in linea con i valori di avient; e • Fornendo un feedback aperto e sincero su dubbi o aree in cui avete domande.

In certain cases throughout this presentation, we have presented GAAP and non-GAAP financial measures adjusted to reflect full- year 2012 Pro forma results, including Spartech and Glasforms and excluding discontinued operations Platform operating income mix percentage 2005Y* 2006* 2008Y* 2010Y* 2013Y Global Specialty Engineered Materials $ 0.4 $ 3.9 $ 17.6 $ 49.7 $ 57.2 Global Color, Additives and Inks 4.3 8.9 28.1 37.7 104.0 Designed Structures and Solutions - - - - 33.4 Specialty Platform $ 4.7 $ 12.8 $ 45.7 $ 87.4 $ 194.6 Performance Products and Solutions 75.7 64.2 31.3 54.0 56.0 Distribution 19.5 19.2 28.1 42.0 63.3 SunBelt Joint venture 91.9 102.9 28.6 18.9 - Corporate (51.5) 34.5 (425.1) (27.7) (82.4) Operating income (loss) GAAP $ 140.3 $ 233.6 $ (291.4) $ 174.6 $ 231.5 Less: Corporate operating expense 51.5 (34.5) 425.1 27.7 82.4 Operating income excluding Corporate $ 191.8 $ 199.1 $ 133.7 $ 202.3 $ 313.9 Specialty platform operating mix percentage 2% 6% 34% 43% 62% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment. Appendix At a Glance�Global Specialty Engineered Materials At a Glance�Global Color, Additives, and Inks At a Glance�Designed Structures and Solutions At a Glance�Performance Products and Solutions At a Glance�Distribution Plastics: Key to Future Sustainable Development Establish Lean Six Sigma As Way of Life Application Examples Slide Number 24 2012 Range Rover Evoque Interior Slide Number 26 Slide Number 27 Metal Replacement Solutions High-Barrier Packaging Containers Aerospace Applications Sidoti Reconciliation of Non-GAAP.pdf Section 1

Brochures & Product Info Glasforms Composite Profiles Learn how Avient helps customers use the power of polymer technology to make great products.

Approximately 90% of Avient’s products met this criteria in 2019 Glasforms™ Pultrusion Technologies offer exceptional strength-to-weight ratio for continuous fiber reinforced composites for structural wind turbine components. There have been no product recalls associated with the quality of Avient products.

Avient Announces Quarterly Dividend... Avient Board of Directors Appoints Ashish K. Avient Announces First Quarter 2025 Results...

De Martorell 124, 8740 Sant Andreu, Spain Avient Colorants MX S.A de C.V. WA- 06, Kalyan-Padgha Road Vashere Maharashtra 421302 India Avient Corporation - Vonore, TN Manufacture of Colorants and Additives for Plastics 245 Avecor Drive Vonore TN 37885 United States Avient Corporation Warehouse 225 Industrial Drive Vonore TN 37885 United States AVIENT BRASIL LTDA Sales; Design and Development; Technical assistance; Receipt; Production and Quality Control; Logistics; Supplies; Equipment – only for liquid; Maintenance and Calibration; Management and Human Resources. Francisco Nakasato, Bairro São Roque das Chaves 1700 Itupeva SP 13295-000 Brazil Avient Belgium SA Design and manufacture of color and additive concentrates, thermoplastic resins and specialty compounds Rue Melville Wilson 2, B-5330 Assesse, Belgium Magna Colours Limited The design, manufacture and distribution of specialty colouration products and chemical auxiliaries for us in the textile, dying, printing and finishing industries.

At Avient, we create specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world. We encounter competition in price, payment terms, delivery, service, performance, product innovation, product recognition and quality, depending on the product involved. Our audit procedures included, among others, making inquiries of internal general counsel and obtaining legal letters from internal and external counsel.

Sustainability Goals By 2030, Avient will enable 100% of our products manufactured for packaging applications to be recyclable or reusable to advance the circular economy. The Secretary will review all such correspondence and regularly forward to the Board a log and summary of all such correspondence and copies of all correspondence that, in the opinion of the Secretary, deals with the functions of the Board or committees of the Board or that she otherwise determines requires the Boardʼs attention, excluding only those items that are not related to Board duties and responsibilities, such as junk mail and mass mailings, product complaints and product inquiries, new product or technology suggestions, job inquiries and resumes, advertisements or solicitations, and surveys. Avient is a leading formulator of specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world.

Products Glasforms™ Continuous Filament Wound Tubes & Poles Continuous Filament Winding: Glasforms™