PRODUCT SELECTION GUIDE WIRE & CABLE SOLUTIONS Specialty Engineered Materials High performance insulation, jacketing, and cross-web formulations for the wire and cable industry Syncure™ XLPE Cross-linkable Polyethylene Formulations • Ambient curing • Flame performance • Resistant to heat, oil, creep, & abrasion • Low temperature properties • Low capital investment • High extrusion speeds • DBDPE-free grades available • UL/CSA bulletins Maxxam™ FR Flame Retardant Polyolefin Formulations • FEP alternative • Fire performance • UL 444 & plenum yellow card compliance • Low dielectric • High extrusion speeds • Thin wall extrudability Maxxam™ SY Foamable Flame Retardant Formulations • Low dielectric • Uniform cell structure • Crush & heat resistance • Ease of chemical foaming ECCOH™ Low Smoke and Fume Non-Halogen Formulations • Improved fire safety • Low smoke, fume, non-halogen (LSFOH) formulations • Chemical resistance ECCOH™ XL Cross-Linkable Solutions • Non-halogen, low smoke, toxicity, & corrosiveness • Excellent mechanical & electrical properties • Easily processed • Operating temperature of 90°C • Moisture cure technology Synprene™ Flame Retardant Thermoplastic Elastomers • Flexibility • Flame performance • Low temperature brittleness (LTB) resistance • Chemical resistance • Easily colored FireCon™ CPE Insulation Jacketing Formulations • Resistance to harsh environments • Low temperature performance • Flame performance • High extrusion speeds • Sunlight resistance FEATURES SPECIFICATION ECCOH™ XL 8148 Non-halogen, low smoke, toxicity, & corrosiveness EN50618 Syncure™ S100FH Horizontal flame UL 44 Syncure™ S100FH-XUV Horizontal flame, UV resistant UL 44 Syncure™ S100FH-UV Horizontal flame, FV-1 flame, UV resistant UL 44, UL 4703 Syncure™ S100FV VW-1 flame UL 44 Syncure™ S100FV-UV VW1, UV resistant UL 44 Syncure™ S112NA Non-flame retardant CSA 22.2 Syncure™ S120NA Non-flame retardant NSF 61 Syncure™ S200FH Horizontal flame, DBDPE-free UL 44 Syncure™ S200FV VW-1, DBDPE-free UL 44 INSULATION FOR POWER CABLE SYSTEMS Low Voltage Power Cables • Flame performance • Resistance to heat, oil, creep, & abrasion • Low temperature performance • Low capital investment • High extrusion speeds INSULATION & CROSS-WEBS FOR DATA CABLE SYSTEMS Category Cables • FEP alternative • Flame performance • Low dielectric constant • High extrusion speeds & thin wall capability • Chemical resistance • Low temperature performance • Flexibility FEATURES SPECIFICATION Maxxam™ FR 0521-48 R1 Low smoke & fume, non-halogen UL 444 Maxxam™ FR 0587-21 R3 Halogenated to plenum performance UL 444 Optical Fiber Cables • Resistance to harsh environments, chemicals, & sunlight • Low temperature brittleness (LTB) resistance • Low smoke & toxicity • Flexibility • High extrusion speeds FEATURES SPECIFICATION ECCOH™ 6649 UV Low DD Low smoke & fume, non-halogen Meets customer-specific flame requirements Coaxial Cables • Flexibility • High extrusion speeds • Low dielectric constant • Uniform cell structure • Crush & heat resistance FEATURES SPECIFICATION Maxxam™ SY 89-22-7 Foamable Meets customer-specific flame requirements JACKETING FOR POWER & DATA CABLE SYSTEMS Low & Medium Voltage Jacketing • Resistance to harsh environments, chemicals, & UV degradation • Low temperature brittleness (LTB) resistance • Low smoke & toxicity • Flexibility • High extrusion speeds • Easily colored FEATURES SUBMARKETS & USES FireCon™ CPE 30-33 RoHS Black Flame retardant, flexible Building & construction, industrial, nuclear FireCon™ CPE 37-36 RoHS Black Flame retardant, flexible Building & construction, industrial, nuclear FireCon™ CPE 30-20 RoHS Natural Flame retardant, flexible Building & construction, industrial, nuclear ECCOH™ 5549 UV Low smoke & fume, non-halogen, flame retardant Building & construction, industrial ECCOH™ 6649 UV Low DD Low smoke & fume, non-halogen, flame retardant Optical fiber, ducts ECCOH™ 5981 UV Low smoke & fume, non-halogen, flame retardant Industrial, Teck 90 wire Synprene™ RT5180 Flame retardant, LTB resistance Building & construction, industrial Synprene™ RT5180UV Flame retardant, LTB resistance Building & construction, industrial Synprene™ RT3870M Flame retardant, LTB resistance Building & construction, industrial 1.844.4AVIENT www.avient.com Copyright © 2023, Avient Corporation.

– PolyOne Corporation (NYSE: POL), a premier global provider of specialized polymer materials, services and solutions, today CLEVELAND – PolyOne Corporation (NYSE: POL) a premier provider of specialized polymer materials, services and solutions, intends to release its four CLEVELAND – PolyOne Corporation (NYSE: POL), a premier global provider of specialized polymer materials, services and solutions, today announce

Certificate Avient Corporation Certificate Of Conformance This is to certify that the Quality Management System of: Avient Corporation 33587 Walker Road Avon Lake OH 44012 United States has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: ISO 9001:2015 The Quality Management System is applicable to: Design and manufacture of colour and additive concentrates, thermoplastic resins and specialty compounds Certificate No: 65799 Certification Date: 01 OCT 2020 Effective Date: 25 SEP 2023 Expiration Date 30 SEP 2026 Revision Date: 06 DEC 2024 Dominic Townsend, President Copyright as of the Effective Date, ABS Quality Evaluations, Inc. Page 1 of 4 https://abs.ez2xs.com https://abs.ez2xs.com ISO 9001:2015 Certificate Of Conformance ANNEX Certificate No.: 65799 Avient Corporation At the below facilities FACILITY NAME FACILITY ACTIVITY ADDRESS Avient Corporation - Avon Lake, OH Management of QMS, Design and manufacture of colour and additive concentrates, thermoplastic resins and specialty compounds 33587 Walker Road Avon Lake OH 44012 United States Avient (Argentina) SA Administration, Site management, Manufacture, Laboratory (QC and Colormatching), Procurement, Maintenance, Infrastructure, Warehouse and Transport, Sales Av. Administration, Site management, Manufacture, Laboratory, Procurement, Maintenance, Infrastructure, Warehouse and Transport 27 Avenida 34–11, Zona 12 1012 Parque Global Guatemala PolyOne Polymers India Private Limited Administration, Site management, Manufacture, Laboratory, Procurement, Maintenance, Infrastructure, Warehouse, Transport and Waste Water Treatment WA-6 Renaissance Industrial & Warehousing Complex, Vashere Maharashtra 400607 India PolyOne Polymers India Private Limited Administration, Site management, Manufacture, Laboratory, Procurement, Maintenance, Infrastructure, Warehouse, Transport and Waste Water Treatment Survey No. 344 / 1–3 Sakarda Bhadarwa Road Taluka Savli Vadodara District 39178 India PolyOne Polymers India Private Limited Administration, Site management, Manufacture, Laboratory, Procurement, Maintenance, Infrastructure, Warehouse, Transport and Waste Water Treatment Shed No 18–22, GIDC Estate Kalol Gujarat 389330 India Copyright as of the Effective Date, ABS Quality Evaluations, Inc.

Further, as a result of Avient's portfolio shift to a pure play specialty formulator, it has completed several acquisitions and divestitures which have resulted in a significant amount of intangible asset amortization. Three Months Ended March 31, 2023 2022 Sales: Color, Additives and Inks $ 537.0 $ 649.5 Specialty Engineered Materials 309.7 243.1 Corporate (1.0) (0.4) Sales $ 845.7 $ 892.2 Gross margin: Color, Additives and Inks $ 162.0 $ 192.1 Specialty Engineered Materials 93.9 68.4 Corporate (8.3) (6.1) Gross margin $ 247.6 $ 254.4 Selling and administrative expense: Color, Additives and Inks $ 96.4 $ 97.6 Specialty Engineered Materials 50.8 30.1 Corporate 43.3 24.5 Selling and administrative expense $ 190.5 $ 152.2 Operating income: Color, Additives and Inks $ 65.6 $ 94.5 Specialty Engineered Materials 43.1 38.3 Corporate (51.6) (30.6) Operating income $ 57.1 $ 102.2 Depreciation & amortization: Color, Additives and Inks $ 25.8 $ 26.0 Specialty Engineered Materials 21.2 7.8 Corporate 3.5 3.8 Depreciation & Amortization $ 50.5 $ 37.6 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 91.4 $ 120.5 Specialty Engineered Materials 64.3 46.1 Corporate (48.1) (26.8) Other income (expense), net 0.7 (0.6) EBITDA $ 108.3 $ 139.2 13 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses gross margin before special items and operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance.

Our long fiber products are produced using a pultrusion process in which continuous tows of fiber are pulled through an impregnation die (to introduce polymer and additive solutions) and then chopped to length (typically 12mm) in a pelletizer.   In contrast, short fiber reinforced solutions are produced by introducing pre-chopped fibers (typically 1mm or less) into an extruder where the fibers are mixed with polymer and other additives.  After a pyrolysis study, in which we burn away the polymer to study the remaining fiber, you can see how the structural skeleton of the long fiber part holds its shape and the short fiber part collapses on itself.  

Game changing concentrates for polymer parts create a metallic surface finish that truly mimics paint while eliminating the painting process. About PolyOne PolyOne Corporation, with 2016 revenues of $3.3 billion, is a premier provider of specialized polymer materials, services and solutions. PHOTO CAPTION: OnColor™ Brilliant Metallic colorants from PolyOne are an effective choice for paint replacement on polymer parts where a high-quality metallic finish is desired. 

EXTRUSION FILM MANUFACTURER S I G N B O A R D P R O T E C T I V E T A P E • Film application with a high concentration of TIO2 (>80%) • Good performance on light fastness and anti-yellowing OnColor Polymer Colorants KEY REQUIREMENTS WHY AVIENT? All Rights Reserved. • Provided excellent dispersion with highly concentrated TiO2 • Offered customized solutions to achieve customer request on TiO2 % @ 80% • Maintained good light fastness https://www.avient.com/products/polymer-colorants Slide 1: EXTRUSION FILM MANUFACTURER

   Specialty Engineered Materials    Specialty Engineered Materials    Specialty Engineered Materials

As consumer demand for more sustainable, eco-friendly products grows along with regulatory pressure, reSound R recycled content formulations can help brand owners deliver on their sustainability goals. These TPE grades, formulated for consumer applications, can be used in personal care products, lawn and garden tools, outdoor goods, office supplies, footwear, and houseware durables. These nylon formulations contain 100 percent PCR resin, and are available in both PA6 and PA66 grades with various levels of glass fiber and mineral reinforcements.

TPEs can incorporate sustainable content in two ways: using either recycled or bio-based content in the formulations. Using recycled content in the formulations can impact colorability and/or surface aesthetics, ultimately influencing material choices made during the design phase. TPEs with recycled or bio-based content can be formulated to enable brands to create more sustainable plastic products.