TEMPERATURE DISTRIBUTION DIAGRAM • Test Method: FTTS-FA-010-2007 4.2 • Equipment: Thermovision • Heat Source: 500W Halogen Lamp • Heat Distance: 100 cm Surface temperature before exposure: 20.22°C Surface temperature after 10 min exposure: 33.85°C Temperature change: +13.6°C Added Cesa Fiber Additives for heat preservation TEST METHOD STANDARD REQUEST TEST RESULT GB/T30127 Far infrared radiation properties Far infrared emissivity ≥0.88 (5-14um) (Test temperature: 34°C) 0.9 Far infrared radiation temperature rise ≥ 1.4°C 9°C GB/T 18319-2019 Thermal retention with accumulated by infrared ray Maximum temperature rise ≥ 6°C 8.9°C Mean temperature rise ≥ 4.4°C (20 minutes) 5.6°C FTTS-FA-010 Infrared radiation properties & thermal retention temperature rise Average emissivity ≥ 0.8 (2-22um) (Test temperature: 25°C) 0.8 Specified heating ΔT ≥ 0.5°C (relative to the standard) +5.34°C (ΔT) GB/T 11048-2008 Method A Thermal transmittance Unit: clo Naked body: 0 Underwear: 0.04 T-shirt: 0.09 Thick sweater: 0.35 Winter coat: 0.7 All the data above are the reference value 0.625 Human Physiological Experiment Blood flow volume +12.9% Blood flow velocity +13.6% Blood oxygenation(%SpO2) +1.7% www.avient.com Copyright © 2023, Avient Corporation.

Purpose Innovator of materials solutions to help our customers succeed, while enabling a sustainable world Strategic Approach Intersecting high growth markets and secular trends with our technologies to create product platforms of scale Foundational Strengths Strategic Drivers Unwavering customer focus Global reach with a local touch Diverse technology portfolio Commercial excellence, financial rigor & prudence Culture of safety and sustainability Catalyze the core Build new platforms of scale Portfolio prioritization Amplify Innovation Digital for operational excellence & growth Leadership, talent and culture for the Avient of the future Growing at GDP+ Growing at 10% plus CAGR Our Purpose and Strategic Framework Dear Avient Shareholders, 2024 was a positive year for Avient where our primary focus was on organic revenue growth and margin expansion. THIS PAGE IS NOT PART OF AVIENT’S FORM 10-K FILING THIS PAGE IS NOT PART OF POLYONE’S FORM 10-K FILINGTHIS PAGE IS NOT PART OF POLYONE’S FORM 10-K FILINGTHIS PAGE IS NOT PART OF AVIENT’S FORM 10-K FILING Reconciliation of Non-GAAP Financial Measures (Unaudited) (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. Environmental, Health and Safety 4.

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April 20, 2018 SHANGHAI – April 20, 2018 – Next week at CHINAPLAS, the largest plastics trade fair in Asia, PolyOne will showcase a variety of breakthrough polymers, colorants, and additives that are enabling manufacturers and designers to unlock new potential.  They help to improve fire safety with low smoke and fume generation in the event of fire, meeting stringent regulations for smoke and toxicity.

MANNHEIM, Germany – 2024年6月12日 – Avient Corporation, a premier provider of specialized and sustainable materials solutions and services, will present its latest technologies and innovations for transportation, including two presentations, next week at the Plastics in Automotive Engineering (PIAE) Conference from June 19 to 20, 2024. The first, titled Lightweight Design Innovation: A Case Study of 20% Weight and CO2 Emission Reduction in Door Panels, offers insights into achievable weight and CO2 reductions using Hydrocerol™ Chemical Foaming Agents in collaboration with tier-one supplier Antolin. The second presentation, titled Management of Vehicle Indoor Air Quality with Sustainable Polymer Additive Solutions, will discuss developing a range of emission and VOC-controlling technologies that can reduce undesirable material emissions, increasing safety and comfort.

HAMMERHEAD™ MARINE COMPOSITE PANELS APPLICATION & INSTALLATION GUIDE PRODUCT DESCRIPTION FEATURE BENEFIT Exceptional strength-to-weight ratio Lightweight yet strong structural performance and increased payloads Resistance to UV light, chemicals, moisture degradation and rot Resistance to harsh marine conditions Tough and impact resistant Durability and long product life Dimensionally stable Consistent performance in extreme temperature and humidity fluctuations Strong adhesive properties Easy bonding to various materials FEATURE BENEFIT Ready-to-install Fewer parts & reduced scrap Large format Improved aesthetics with seamless designs Made via continuous-fiber manufacturing process Consistent quality in every panel PERFORMANCE ADVANTAGES MANUFACTURING ADVANTAGES Hammerhead™ Marine Composite Panels are made from continuous glass- fiber reinforced thermoplastic face sheets and polyester foam cores. MARINE PLYWOOD Hammerhead™ panels are three times lighter than marine plywood MOISTURE ABSORPTION % weight change due to water absorption for selected composites and marine plywood 10000 60000 110000 160000 210000 260000 310000 360000 0.5 0.75 1 1.25 1.5 F le x u ra l R ig id it y - lb / in 2 Panel Thickness - in Hammerhead™ 5.3lb/in^3 Core Density Hammerhead™ 8.4lb/in^3 Core Density Plywood — Hammerhead™ 5.3 lb/ft3 Core Density — Hammerhead™ 8.4 lb/ft3 Core Density — Marine Plywood 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 0 10 20 30 40 50 60 70 80 90 100 % W e ig h t C h a n g e Immersion Time - Days .50" Hammerhead™ .75" Hammerhead™ 1" Hammerhead™ 1.50" Hammerhead™ .50" marine plywood .75" marine plywood 1" marine plywood Fl ex ur al R ig id it y - l b- in 2 INSTALLATION INSTRUCTIONS CUTTING & DRILLING Recommended blade: Industrial fine cut-off saw blade, 10" x 80 teeth 38° ATB grind with 5/8" bore, PTFE coating Recommended router bits: 3/8" diameter, 4 flute TiAlN (titanium aluminum nitride) coated carbide bit FORMING Apply localized 400˚F heat at a length proportional to the panel thickness (see equation below) and bend to shape. BOTTOM PANEL LEG LENGTH BREAK STRENGTH (LBS) Hammerhead™ with 5.3 lb/ft3 Core Density 2 in 420 Hammerhead™ with 8.4 lb/ft3 Core Density 2 in 332 Marine Plywood 2 in 984 Glass/Polyester with Balsa Core 2 in 1298 Hammerhead™ with 5.3 lb/ft3 Core Density - ITW Plexus MA420 Adhesive NA 501 Hammerhead™ with 8.4 lb/ft3 Core Density - ITW Plexus MA420 Adhesive NA 1156 Hammerhead™ with 8.4 lb/ft3 Core Density - Crestomer 1152PA Adhesive NA 1530 Hammerhead™ with 8.4 lb/in3 Core Density - Crestomer M1-30 Adhesive NA 1471 ADHESIVE DESCRIPTION ADHESIVE GRADE MANUFACTURER AVERAGE BOND STRENGTH (PSI) STANDARD DEVIATION FAILURE MODE BEST ADHESION 2k Urethane 75421 Lord 2281 184 SubstrateCohesive 2k Acrylic SA1-705 GRY1 AccraLock 2211 78 Substrate 2k Acrylic Plexus MA420 ITW 2171 262 Substrate 2k Acrylic SA10-05 Blk1 AccraLock 2102 138 Substrate 2k Urethane 75451 Lord 2047 68 Cohesive 2k Acrylic SA1-705 GRY 1:2 AccraLock 1966 68 Substrate 2k Acrylic Scotchweld 8010 3M 1907 61 Adhesive Cyanoacrylate Gorilla Glue Gorilla Glue 1885 432 Cohesive 2k Acrylic Crestabond PP-04 Scott Bader 1873 281 Substrate 2k Acrylic SA10-05 Blk 10:2 AccraLock 1779 127 Cohesive 2k Urethane 75422 Lord 1716 190 CohesiveAdhesive 2k Urethane 75452 Lord 1535 98 Adhesive 2k Methacrylate Polyfuse Icon Containment 1610 98 Adhesive INTERMEDIATE ADHESION 2k Acrylic FA10-05 Blk C010817 AccraLock 724 58 Cohesive 2k Acrylic FA10-05 Blk1 AccraLock 722 44 Cohesive 2k Epoxy Loctite Epoxy Instant Mix Loctite 508 81 Adhesive 2k Epoxy Gorilla Glue Epoxy Gorilla Glue 341 198 Adhesive NOT RECOMMENDED 2k Epoxy Loctite Epoxy Marine Loctite 0 0 No bond ADHESIVE SELECTION Brands identified are owned by the manufacturers of the adhesive products. 1 surface sanded with 220 grit scuff prep 2 surface primed with 459T FASTENER TYPE BENEFITS CONSIDERATIONS Through-Bolting Best mechanical locking system Need back side access to panel Screw-In Anchor Highest pullout strength Requires pilot hole Cup Washer Spreads compressive load Requires relief hole; For substructure and hard point attachment Wide Grip (Bulb-Style) Rivet Ease of use—no installation torque limitations For lower load attachments Sheet Metal or Wood Screw Readily available, low cost Penetrate both skins for improved pullout Shoulder Washer Limits compressive load Requires relief hole; For substructure and hard point attachment For more information on installation, adhesives, and fasteners for specific applications, please contact Avient.

April 20, 2022 April 20, 2022 Condensed Consolidated Balance Sheets

Data is reported in pounds per linear inch (pli). The overmolding process also provides ergonomically correct tools to enhance worker safety. Data is reported in pounds per linear inch (pli).

compravendita Data atto: 21/12/2018 Data deposito: 11/01/2019 estremi della pratica Data protocollo: 11/01/2019 Numero protocollo: MI-2019-11024 estremi ed oggetto dell'atto Notaio: TODESCHINI EDMONDO Numero repertorio: 27363/11576 Cedente: MAGENTA MASTER FIBERS S.R.L. compravendita Data atto: 21/12/2018 Data deposito: 11/01/2019 estremi della pratica Data protocollo: 11/01/2019 Numero protocollo: MI-2019-11025 Registro Imprese Archivio ufficiale della CCIAA Documento n . procuratore speciale NIZZERO RAFFAELE Nato a MILANO (MI) il 20/07/1972 Codice fiscale: NZZRFL72L20F205C domicilio GALLARATE (VA) VIA PADRE LEGA 56 21013 carica procuratore speciale Data atto di nomina 22/09/2021 Data iscrizione: 15/10/2021 Durata in carica: fino alla revoca poteri CON ATTO IN DATA 22 SETTEMBRE 2021 N. 33565/14789 DI REPERTORIO NOTAIO EDMONDO TODESCHINI VENGONO CONFERITI I POTERI DI SEGUITO ELENCATI, DA ESERCITARSI IN VIA DISGIUNTIVA, A FIRMA SINGOLA: 1.

The data importer shall certify the deletion of the data to the data exporter. Clause 16(e); Updated 08/04/2022 20 viii. The data importer shall certify the deletion of the data to the data exporter.