SOLUTIONS FOR FIBER OPTIC CABLE Engineered Fibers, Color & Additives, Specialty Engineered Materials BINDER YARN Flat, low-profile Highly absorbent (up to 65x its weight) BUFFER TUBE SWELLABLE YARN Cleaner than gel Highly absorbent WATER SWELLABLE FRP Non-corrosive, non-conductive, No flaking or shedding Overcoat and upjacketing available STRENGTH MEMBER Aramid or fiberglass yarn Processes cleanly with minimal dust UNDER-SHEATH RIPCORD Swellable, non-wicking Available in colors for easy identificationLASER MARKING ADDITIVES Provide good contrast in black outer jacket for outdoor exposure JACKET Color formulations for PVC, PE, TPU, TPC UV protective additives Non-halogenated colors for LSFOH LSFOH UV formulations for high flame retardancy, chemical and UV resistance, low COF TPE Polyamide, custom polyolefins LOOSE TUBES, TIGHT BUFFERS AND MICRO-MODULES LSFOH UV formulations for improved processing speeds, strippability & gel resistance Customized formulations: PBT PP TPE Color formulations for polyamide, PBT, LSFOH , TPE, TPC (Thermoplastic Copolyester) Laser marking additives https://www.avient.com/products/fiber-line-engineered-fiber-solutions/fiber-line-engineered-fiber-products/ripcords-fiber-optic-cable https://www.avient.com/products/fiber-line-engineered-fiber-solutions/fiber-line-engineered-fiber-products/water-blocking-absorbing-yarn https://www.avient.com/products/fiber-line-engineered-fiber-solutions/fiber-line-engineered-fiber-products/water-blocking-absorbing-yarn https://www.avient.com/products/fiber-line-engineered-fiber-solutions/fiber-line-engineered-fiber-products/fiber-reinforced-polymer https://www.avient.com/products/fiber-line-engineered-fiber-solutions/fiber-line-engineered-fiber-products/strength-members https://www.avient.com/products/fiber-line-engineered-fiber-solutions/fiber-line-engineered-fiber-products/ripcords-fiber-optic-cable https://www.avient.com/products/polymer-additives/performance-enhancement-additives/oncap-laser-marking-additives https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-wire-cable https://www.avient.com/products/polymer-additives/uv-and-light-blocking-additives/oncap-uv-stabilizer-additives https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-wire-cable https://www.avient.com/products/engineered-polymer-formulations/eco-conscious-formulations/eccoh-low-smoke-and-fume-non-halogen-formulations https://www.avient.com/products/engineered-polymer-formulations/eco-conscious-formulations/eccoh-low-smoke-and-fume-non-halogen-formulations https://www.avient.com/products/thermoplastic-elastomers/onflex-thermoplastic-elastomers https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations https://www.avient.com/products/engineered-polymer-formulations/eco-conscious-formulations/eccoh-low-smoke-and-fume-non-halogen-formulations https://www.avient.com/products/engineered-polymer-formulations/eco-conscious-formulations/eccoh-low-smoke-and-fume-non-halogen-formulations https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/bergadur-polyester-formulations https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations https://www.avient.com/products/thermoplastic-elastomers/onflex-thermoplastic-elastomers https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-wire-cable https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-wire-cable https://www.avient.com/products/polymer-additives/performance-enhancement-additives/oncap-laser-marking-additives

COLORANT CHROMATICS HIGH-TEMPERATURE POLYMER FORMULATIONS PRODUCT SELECTION GUIDE COLORANT CHROMATICS HIGH TEMPERATURE COMPOUNDS PROPERTY ISO Test Method Units PES PPSU PEI LCP PEEK PSU PHYSICAL Density 1183 — 1.37 1.29 1.27 1.40 1.30 1.24 Mold Shrinkage Flow/X-flow 294–4 % 0.8/0.85 0.7/XX 0.6/0.7 0/0.7 1.0/1.3 0.7 MECHANICAL Tensile Strength 527 Mpa 85 70 85 200 100 70 Tensile Elongation Yield 527 % 7 7.5 6 — — 6 Tensile Elongation Break 527 % >25 >60 60 3 30 >50 Izod Notched 180 kJ/m2 7 55 5 95 7 5.5 THERMAL HDT 1.8 MPa 75 °C 205 200 190 190 150 175 FLAMMABILITY Flame Rating UL-94 — V-0 V-0 V-0 V-0 V-0 HB ADDITIONAL Steam Sterilizable — Cycles 100 2000 2000 1500 1000 100 CUSTOM OPTIONS Color — — Yes Yes Yes Yes Yes Yes Reinforced — — Yes Yes Yes Yes Yes Yes Conductive — — Yes Yes Yes Yes Yes Yes Lubricated — — Yes Yes Yes No Yes Yes Radiopaque — — Yes Yes Yes No Yes Yes Trade Names — — Veradel Ultrason E Radel Ultrason P Ultem Vectra Zenite Xydar KetaSpire Victrex Vestakeep Udel Ultrason S Avient high temperature precolored and specialty compounds are your solutions for high performance products.

Polypropylene (PP) Polyethylene (PE) Polystyrene (PS) Thermoplastic Elastomer (TPE) Thermoplastic Polyurethane (TPU) Polyamide (PA) Copolyester (CoPET) Thermoplastic Vulcanizates (TPV) Polycarbonate (PC) Acrylonitrile Butadiene Styrene (ABS) Polycarbonate/ABS (PC/ABS) www.avient.com Copyright © 2020, Avient Corporation.

• Cesa™ Unify™ A4R Polyolefin Compatibilizer helps bring incompatible polymers like PP and PE together by forming them into a homogenous polymer mixture which increases the mechanical properties of the recycled polymer. • Cesa™ impact modifier for polystyrene improves the impact strength of recycled polystyrene (rPS) with limited impact on the Young’s modulus.

ZHEA EBONY 50:1 CDB210 PG 305362.00 OR PE Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

PG18388 WT PE PG18390 GN PE Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

The company noted that GAAP EPS includes special items (Attachment 3) and intangible amortization expense (Attachment 1). To access Avient’s news library online, please visit www.avient.com/news. https://www.avient.com/news 4 Pro Forma for Acquisition of Avient Protective Materials business (APM) On September 1, 2022, the company acquired DSM’s Protective Materials business, the foundation of which is the renowned technology and globally admired brand of Dyneema®, the World’s Strongest Fiber™. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. # # # 7 Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations Avient Corporation +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G.

GREY Q716-3-1 CEL CC BLUE 299C PE SKY BLUE 284C PE

PE MANGO-F 716C BLACK 1 4173-RD-50 PE RED

HMF RED UV PE 12 HMF RED UV PE 13 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)