DATI ANAGRAFICI Indirizzo Sede legale 9638 POMMERLOCH 19 ROUTE DE BASTOGNE . LUSSEMBURGO Domicilio digitale/PEC polyonesarl@legalmail.it Numero REA VA - 370258 Codice fiscale e n.iscr. al 03669670121 Partita IVA 03669670121 Forma giuridica societa' costituita in base a leggi di altro stato Data iscrizione 07/09/2018 Data ultimo protocollo 30/11/2021 Preposto Della Sede Secondaria FUSI ALBERTO Rappresentante dell'Impresa ATTIVITA' Stato attività attiva Data inizio attività 31/10/2018 Attività prevalente commercio all'ingrosso di materiali coloranti per materie plastiche. A CUXK0XMKM92D910207D0 estratto dal Registro Imprese in data 01/12/2021 Indice 1 Sede 2 Informazioni da statuto/atto costitutivo 3 Trasferimenti d'azienda, fusioni, scissioni, subentri 4 Attività, albi ruoli e licenze 5 Sedi secondarie ed unita' locali 6 Aggiornamento impresa 1 Sede Indirizzo Sede legale 9638 POMMERLOCH 19 ROUTE DE BASTOGNE .

Colorants and additives based on bio-polyolefins Mevopur™ Healthcare Bio-based Polymer Solutions Bio-based solutions

They are based on management’s expectations that involve business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Specialty Engineered Materials END MARKETS REGIONS 17% 14%13% Defense Packaging Telecom 54% 33% US & Canada Europe, Middle East Energy Copyright © . 2025 26 Avient 2024 regional sales, by end market US & CANADA 41% of sales EMEA 35% of sales ASIA 18% of sales LATIN AMERICA 6% of sales 22% Packaging TelecomEnergyDefenseHealthcareBuilding & TransportationIndustrialConsumer 26% 16% 31% 26% 1%1% 2% 61% Copyright © . 2025 27 NON-HYDROCARBON MATERIALS HYDROCARBON-BASED ~35% of the raw material basket including part of “Other raw materials” are hydrocarbon-based Raw material basket 16% 4% 4% Performance additives Pigments TiO2 Dyestuffs Styrenic block copolymers Polypropylene Nylon Polyethylene Other raw materials Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results. Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude.

ES0209 NPT SPARKLE BASE ES0266 NPT BARRIER BASE EV0541 EV OPAQUE BASE

TPE Knowledge Base those based on Styrene-Butadiene-Styrene (SBS) or Styrene-Isoprene-Styrene (SIS) polymers, and For both product lines, a “D” designates a TPE based on SBS or SIS, while a “G” designates a TPE based on SEBS or SEPS.

Maxxam™ BIO Bio-Based Polyolefins Maxxam BIO Bio-Based Polyolefin Formulations Gravi-Tech™ BIO Bio-Based Formulations

Maxxam™ BIO Bio-Based Polyolefins Maxxam BIO Bio-Based Polyolefin Formulations Gravi-Tech™ BIO Bio-Based Formulations

Maxxam™ BIO Bio-Based Polyolefins Maxxam BIO Bio-Based Polyolefin Formulations Gravi-Tech™ BIO Bio-Based Formulations

Edgetek™ Formulations for 5G Base Station Antenna Applications (Japanese) Edgetek™ Formulations for 5G Base Station Antenna Applications (Chinese) Product base resin(s), target end markets, and available properties and features (Chinese language version)

TPE Knowledge Base those based on Styrene-Butadiene-Styrene (SBS) or Styrene-Isoprene-Styrene (SIS) polymers, and For both product lines, a “D” designates a TPE based on SBS or SIS, while a “G” designates a TPE based on SEBS or SEPS.