BUILDING & CONSTRUCTION INDUSTRY BULLETIN SAFETY Security and prevention SOLUTION: Flame retardants, laser marking additives, electrical and thermal additives SURFACE FINISH Low maintenance, natural wood grain aesthetics SOLUTION: Wood plastic composite (WPC) capstock technology PROTECTION Potable water tanks, electrical connectors, piping & tubing, insulation SOLUTION: Antimicrobials, electrical and thermal additives LONGEVITY Long service life, chemical resistance, mold & mildew resistance SOLUTION: Weatherable colorants, impact modifiers, antimicrobial additives SUSTAINABILITY LEED building & material credits, healthy building, reduced energy use, lightweighting, eco-conscious SOLUTION: Recycled materials, chemical foaming agents, bio-derived colorants & additives LANDSCAPE HARMONY Concrete surfaces, patio coloring, stucco SOLUTION: Pool colorants, metallic flooring colorants, stains The building and construction industry is dynamic, with trends towards high- performance buildings, elegant outdoor areas, healthier living spaces, and eco-friendly environments.

KEY CHARACTERISTICS • Manufactured at four ISO 13485 certified manufacturing sites, providing global consistency and increased security of supply • Documented change control beyond CAS number, reducing risk of change • Non-phthalate and formulated without animal-derived substances • Available as concentrates or ready-to-use formulations in a wide range of polymers • Functionality and color can be combined in one product for convenience REGULATORY SUPPORT • Raw materials tested to: - ISO 10993-1 and USP biological evaluation - European Pharmacopeia 3.1.3/3.1.5 (polyolefin) - USP (polyethylene) - ICH Q3D elemental impurities • Registered Drug Master File (Type III) and/or Device Master File • Documentation support for approval or transition to comply with (new) regulations such as IVDR APPLICATION BULLETIN Healthcare use limitations apply—see below.

Prohibition on Hedging Our Securities. Avient’s Insider Trading Policy prohibits Directors, officers and certain other employees of Avient from engaging in hedging or other speculative transactions with respect to our securities, including buying or selling puts or calls, short sales, or margin purchases of our securities. EXECUTIVE COMPENSATION PROXY STATEMENT 2024 | Annual Meeting of Shareholders 63 OUTSTANDING EQUITY AWARDS AT 2023 FISCAL YEAR-END Name Option Awards Stock Awards Grant Date Number of Securities Underlying Unexercised Options (#) Exercisable Number of Securities Underlying Unexercised Options (#) Unexercise- able (1) Equity Incentive Plan Awards: Number of Securities Underlying Unexercised Unearned Options (#) (1) Option Exercise Price ($) Option Expiration Date Number of Shares or Units of Stock that have not Vested (2) (#) Market Value of Shares or Units of Stock that have not Vested ($) A.K.

Prohibition on Hedging or Pledging Our Securities. Number of Securities Underlying Unexercised Options (#) Exercisable (column (b)) This column shows the fully vested and exercisable SARs held by the Named Executive Officers as of December 31, 2017. The value realized on exercise (column (c)) was computed by determining the difference between the closing stock price of the underlying securities at exercise and the base price of the SARs.

Se espera de usted que comprenda y siga las pautas de la empresa al utilizar las redes sociales, ya sea para uso empresarial o personal y el uso implique información o comunicaciones de Avient o guarde relación con su empleo o responsabilidades con o hacia la empresa. 16 Índice Seguridad informática, licencias de software y derechos de autor Como con las demás formas de información esenciales para las operaciones de Avient, usted debe proteger cuidadosamente la información contenida en ordenadores o grabada en diversos medios de almacenamiento para evitar la duplicación accidental o no autorizada, su modificación, divulgación o destrucción.

Figure 9: Center of mass comparisons Ergonomic Grip Design Guide 9 MATERIAL HARDNESS (DUROMETER) is key to grip security and fatigue reduction. All three designs featured an overmolded soft-touch TPE to add security to the grip and reduce the impact force felt by the hand. Panel 3 shows how the slide-on TPE handle secures the body to the toothbrush, which consists of a single molded component with a living hinge that folds to create the overall form.

• The Committee will consist entirely of directors who the Board has determined have no material relationships with the Company, either directly or as a partner, shareholder, or officer of an organization that has a relationship with the Company, and: o who meet the definition of “independent” as set forth in the Corporate Governance Standards of the New York Stock Exchange; and o qualify as “non-employee directors” for the purposes of Rule 16b-3 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). • Each Committee member will serve at the pleasure of the Board for such term as the Board may decide or until such Committee member is no longer a Board member.

Belgium Branch Vesaliusstraat 31 - 1000 Brussels E: ol.brussel@xerius.be T: 02 609 62 30 Inne Tuyteleers Officer Xerius Enterprise Counter 26/11/2021 4Extract from Page 2from Functions Last Name, first Name Registered entity Start Date End DateReason for termination Representative (branch) Roels Jean-Marie 31/08/2018 Last Name, first Name Registered entity Start Date End DateReason for terminationEntrepreneurial skills - Ambulant commerce - Fairground operator 31/08/2018Non SME dispensation (Exemption) Characteristic Phase Duration Start Date End DateReason for termination Employer National Social Security Office Characteristic/authorisation acquired 01/11/2018undetermined Subject to VAT Characteristic/authorisation acquired 31/08/2018undetermined Enterprise subject to registration Characteristic/authorisation acquired 01/11/2018undetermined General assembly End Date Financial Year Start Date Exceptional Year Start Date End DateEnd Date Exceptional Year Financial Details Share capital (Capital Stock) Currency Duration of the entity 12,000.00 EUR June 31/12 09/08/2018 Use Bank account number Start Date End DateBank account number Bank Accounts BIC For all purposes 685 8477013 57 31/08/2018BE09685847701357BOFABE3X External Identifiers NSSO number 143954886 Trade register number 19 0097620 There is no data available for the following sections: Authorisations, Working partners :, Ex-officio striking off, Links between registered entities List of branches Branch - Center of operations General Information Start date entity End date entity 09/08/2018 Address Start Date End Date Address Rue Melville Wilson 2 09/08/2018 5330 Assesse België Company Number 0700.822.426 Company Name Avient S.à r.l., Belgium Branch Inne Tuyteleers Officer Xerius Enterprise Counter 26/11/2021 4Extract from Page 3from Establishment unit number Name Situation on 2.278.618.585 Avient S.à r.l., Belgium Branch 26/11/2021 Name Type Language Name Start Date End Date Trade name French Avient S.à r.l., Belgium Branch 08/11/2021 Address Start Date End Date Address Rue Melville Wilson 2 31/08/2018 5330 Assesse België Additional address info Contact details Type Contact detail Characteristic Start Date End Date Website www.polyone.com Declarative 31/08/2018 General Information 31/08/2018Start date establishment unit End date establishment unit Start date link between entities End date link between entities 31/08/2018 Activities Type Start Date End DateVersionNACEBEL Activities Wholesale trade of industrial chemical products Main activity 31/08/2018200846751 Wholesale trade of industrial chemicals: aniline, printing ink, essential oils, industrial gases, chemical glues, dyes, synthetic resin, methanol, paraffin, etc.

Network capable Data acquisition and SPC Web enabled Touch screen controller User login security Gravimetric functions Custom configuration Remote access functions www.avient.com Copyright © 2020, Avient Corporation.

If Seller determines that Buyer’s financial responsibility has become impaired or otherwise unsatisfactory to Seller, Seller at its discretion may require advance cash payments, COD, shorter terms, and/or the posting of satisfactory security by Buyer, and may withhold shipments. Seller shall have the right to terminate an order confirmation with immediate effect if at any time prior to delivery, a person or group of persons who are unrelated to the persons controlling Buyer as of the date of the order confirmation, acquires control, through ownership of voting securities or otherwise, over Buyer. The notices referred to in Article 18/3 of the Turkish Commercial Code in respect of this Term (i.e., default, termination, or revocation notices) shall be made through a notary public, by registered mail (return receipt requested) or registered electronic mail by using secured electronic signature and shall be deemed to have been served as of the date of proper service in accordance with the Turkish laws and regulations. 26.