IMS 3.0 Color Matching Software: A cloud-based solution for managing color and inventory in the textile screen-printing market.

Textiles and Fabrics

Pro Forma Financial Information The Company acquired Avient Protective Materials (“Dyneema”) on September 1, 2022 (the “Acquisition Date”) and has a pending sale of the Distribution segment. Additionally, Adjusted EPS excludes the impact of special items and amortization expense associated with intangible assets. 2 PRO FORMA 2021 TO 2022 BRIDGE 3 2021 EPS from Continuing Operations 1.69$ Pro Forma & Special Items 1.33 Proforma 2021 Adjusted EPS 3.02$ FX Impact (0.22) China Lockdowns / Russia Import Sales (0.24) Outdoor High Performance (0.13) Dyneema 0.06 Color, Additives and Inks 0.38 Legacy Specialty Engineered Materials 0.22 Other 0.01 Proforma 2022 Adjusted EPS 3.10$ Constant Currency Sales Sales COLOR, ADDITIVES AND INKS Q1 Q2 Q3 Q4 FY 4% Q1 Q2 Q3 Q4 FY 4% 7% (4%) (9%) 6% (10%) 0% 1% 2% Constant currency reflects prior year results restated at current year foreign exchange rates Q1 Q2 Q3 Q4 FY Q1 Q2 Q3 Q4 FY 7% 10% 4% (3%) 12% (6%) 5% 6% 9% 610 650 624 649 587 565 581 526 2,402 2,390 589 650 589 649 543 565 545 526 2,266 2,390 116 121 112 119 93 95 88 79 409 414 113 121 106 119 87 95 84 79 390 414 Constant Currency EBITDA EBITDA 10% 4 Constant Currency EBITDA Sales Q1 Q2 Q3 Q4 FY (1%) PRO FORMA SPECIALTY ENGINEERED MATERIALS Q1 Q2 Q3 Q4 FY 16%8% (8%) (8%) 3% (6%) (6%) (2%) 2% EBITDA Constant Currency Sales Constant currency reflects prior year results restated at current year foreign exchange rates Q1 Q2 Q3 Q4 FY 4% Q1 Q2 Q3 Q4 FY 20%12% (1%) (2%) 5% (1%) (2%) 3% 6% 314 338 348 343 325 300 321 295 1,308 1,276 303 338 329 343 303 300 301 295 1,236 1,276 67 78 75 77 70 66 66 62 278 283 65 78 73 77 67 66 63 62 268 283 5 Constant Currency Adjusted EPS Adjusted EPS PRO FORMA AVIENT Q1 Q2 Q3 Q4 FY 10% (3%) (21%) 3% Q1 Q2 Q3 Q4 FY Q1 Q2 Q3 Q4 FY 9% 5% 7% (5%) (9%) (1%) (1%) (12%) 1% Sales Constant Currency Sales Constant currency reflects prior year results restated at current year foreign exchange rates Q1 Q2 Q3 Q4 FY 17% 8% (14%) 11% Q1 Q2 Q3 Q4 FY Q1 Q2 Q3 Q4 FY 14% 10% 11% 2% (3%) 5% 8% (5%) 7% EBITDA Constant Currency EBITDA 925 987 973 992 912 867 902 823 3,712 3,669 893 987 919 992 847 867 845 823 3,504 3,669 161 176 164 172 142 141 133 117 600 606 155 176 157 172 131 141 123 117 566 6068% 2% 0.84 0.98 0.87 0.96 0.70 0.68 0.61 0.48 3.02 3.10 0.79 0.98 0.82 0.96 0.63 0.68 0.56 0.48 2.80 3.10 17% 24% 6 Three Months Ended March 31, 2022 Three Months Ended March 31, 2021 Reconciliation to Condensed Consolidated Statements of Income Avient EPS Avient EPS Net income from continuing operations $ 64.7 $ 60.4 Net income attributable to noncontrolling interests (0.3) (0.4) Net income from continuing operations attributable to Avient shareholders $ 64.4 $ 0.70 $ 60.0 $ 0.65 Special items, after tax $ 6.4 $ 0.07 $ 2.6 $ 0.03 APM pro forma adjustments 2.6 0.03 (3.1) (0.03) Amortization expense, after tax 17.4 0.19 17.9 0.19 Adjusted pro forma net income / EPS $ 90.8 $ 0.98 $ 77.4 $ 0.84 Weighted average diluted shares 92.3 92.2 Three Months Ended June 30, 2022 Three Months Ended June 30, 2021 Reconciliation to Condensed Consolidated Statements of Income Avient EPS Avient EPS Net income from continuing operations $ 62.8 $ 50.2 Net income attributable to noncontrolling interests — (0.6) Net income from continuing operations attributable to Avient shareholders $ 62.8 $ 0.68 $ 49.6 $ 0.54 Special items, after tax $ 3.2 $ 0.03 $ 11.7 $ 0.13 APM pro forma adjustments 5.2 0.06 1.4 0.02 Amortization expense, after tax 17.2 0.19 17.8 0.19 Adjusted pro forma net income / EPS $ 88.4 $ 0.96 $ 80.5 $ 0.87 Weighted average diluted shares 92.1 92.4 Three Months Ended September 30, 2021 Reconciliation to Condensed Consolidated Statements of Income Avient EPS Net income from continuing operations $ 33.4 Net income attributable to noncontrolling interests 0.3 Net income from continuing operations attributable to Avient shareholders $ 33.7 $ 0.37 Special items, after tax $ 11.7 $ 0.13 APM pro forma adjustments 1.5 0.02 Amortization expense, after tax 17.6 0.19 Adjusted pro forma net income / EPS $ 64.5 $ 0.70 Weighted average diluted shares 92.2 Adjusted EPS may not recalculate due to rounding. 1 Three Months Ended December 31, 2021 Year Ended December 31, 2021 Reconciliation to Condensed Consolidated Statements of Income Avient EPS Avient EPS Net income from continuing operations $ 11.2 $ 155.2 Net income attributable to noncontrolling interests 0.9 0.2 Net income from continuing operations attributable to Avient shareholders $ 12.1 $ 0.13 $ 155.4 $ 1.69 Special items, after tax $ 24.0 $ 0.26 $ 50.0 $ 0.54 APM pro forma adjustments 2.5 0.03 1.6 0.02 Amortization expense, after tax 17.8 0.19 71.1 0.77 Adjusted pro forma net income / EPS $ 56.4 $ 0.61 $ 278.1 $ 3.02 Weighted average diluted shares 92.4 92.1 Reconciliation of Color, Additives and Inks EBITDA Q1 2021 Q2 2021 Q3 2021 Q4 2021 YTD 2021 Q1 2022 Q2 2022 Operating Income 88.8 86.3 66.8 61.2 303.1 94.5 93.6 Depreciation and amortization 27.4 25.3 26.6 26.4 105.7 26.0 25.9 EBITDA $ 116.2 $ 111.6 $ 93.4 $ 87.6 $ 408.8 $ 120.5 $ 119.5 Reconciliation of Specialty Engineered Materials EBITDA Q1 2021 Q2 2021 Q3 2021 SEM Pro forma APM Pro forma SEM SEM Pro forma APM Pro forma SEM SEM Pro forma APM Pro forma SEM Operating Income 32.6 9.1 41.7 35.8 13.9 49.7 30.0 15.2 45.2 Depreciation and amortization 7.8 17.5 25.3 8.1 17.3 25.4 7.9 17.1 25.0 EBITDA $ 40.4 $ 26.6 $ 67.0 $ 43.9 $ 31.2 $ 75.1 $ 37.9 $ 32.3 $ 70.2 Reconciliation of Specialty Engineered Materials EBITDA Q4 2021 YTD 2021 SEM Pro forma APM Pro forma SEM SEM Pro forma APM Pro forma SEM Operating Income 27.1 11.7 38.8 125.5 49.9 175.4 Depreciation and amortization 8.0 18.9 26.9 31.8 70.8 102.6 EBITDA $ 35.1 $ 30.6 $ 65.7 $ 157.3 $ 120.7 $ 278.0 2 Reconciliation of Specialty Engineered Materials EBITDA Q1 2022 Q2 2022 SEM Pro forma APM Pro forma SEM SEM Pro forma APM Pro forma SEM Operating Income 38.3 15.4 53.7 35.2 17.7 52.9 Depreciation and amortization 7.8 16.6 24.4 7.7 16.6 24.3 EBITDA $ 46.1 $ 32.0 $ 78.1 $ 42.9 $ 34.3 $ 77.2 Reconciliation of Avient consolidated pro forma EBITDA Q1 2021 Q2 2021 Q3 2021 Avient Pro forma APM Pro forma Avient Avient Pro forma APM Pro forma Avient Avient Pro forma APM Pro forma Avient Net income from continuing operations 60.4 (3.1) 57.3 50.2 1.4 51.6 33.4 1.5 34.9 Income tax expense 16.3 1.1 17.4 13.8 1.3 15.1 2.0 2.5 4.5 Interest expense 19.3 11.1 30.4 19.5 11.2 30.7 19.0 11.2 30.2 Depreciation and amortization 36.9 17.5 54.4 33.6 17.3 50.9 36.6 17.1 53.7 EBITDA 132.9 26.6 159.5 117.1 31.2 148.3 91.0 32.3 123.3 Special items, before tax 2.4 — 2.4 14.2 — 14.2 19.9 — 19.9 Depreciation included in special items (0.6) — (0.6) 1.4 — 1.4 (0.9) — (0.9) Adjusted EBITDA $ 134.7 $ 26.6 $ 161.3 $ 132.7 $ 31.2 $ 163.9 $ 110.0 $ 32.3 $ 142.3 Reconciliation of Avient consolidated pro forma EBITDA Q4 2021 YTD 2021 Avient Pro forma APM Pro forma Avient Avient Pro forma APM Pro forma Avient Net income from continuing operations 11.2 2.5 13.7 155.2 1.6 156.8 Income tax expense 16.2 (1.9) 14.3 48.3 3.7 52.0 Interest expense 17.5 11.1 28.6 75.3 44.6 119.9 Depreciation and amortization 37.9 18.9 56.8 145.0 70.8 215.8 EBITDA 82.8 30.6 113.4 423.8 120.7 544.5 Special items, before tax 20.6 — 20.6 57.1 — 57.1 Depreciation included in special items (1.6) — (1.6) (1.7) — (1.7) Adjusted EBITDA $ 101.8 $ 30.6 $ 132.4 $ 479.2 $ 120.7 $ 599.9 3 Reconciliation of Avient consolidated pro forma EBITDA Q1 2022 Q2 2022 Avient Pro forma APM Pro forma Avient Avient Pro forma APM Pro forma Avient Net income from continuing operations 64.7 2.6 67.3 62.8 5.2 68.0 Income tax expense 20.0 1.7 21.7 22.7 1.4 24.1 Interest expense 16.9 11.1 28.0 16.2 11.1 27.3 Depreciation and amortization 37.6 16.6 54.2 36.3 16.6 52.9 EBITDA 139.2 32.0 171.2 138.0 34.3 172.3 Special items, before tax 6.6 — 6.6 0.9 — 0.9 Depreciation included in special items (2.1) — (2.1) (1.1) — (1.1) Adjusted EBITDA $ 143.7 $ 32.0 $ 175.7 $ 137.8 $ 34.3 $ 172.1 Reconciliation of Specialty Engineered Pro Forma Sales Q1 2021 Q2 2021 Q3 2021 Q4 2021 YTD 2021 Q1 2022 Q2 2022 Sales 214.7 238.9 231.7 226.3 911.6 243.1 242.3 Pro forma APM 98.9 108.8 93.8 94.9 396.4 94.8 100.5 Pro forma sales $ 313.6 $ 347.7 $ 325.5 $ 321.2 $ 1,308.0 $ 337.9 $ 342.8 Reconciliation of Avient Pro Forma Sales Q1 2021 Q2 2021 Q3 2021 Q4 2021 YTD 2021 Q1 2022 Q2 2022 Sales 826.0 864.5 818.0 807.1 3,315.6 892.2 891.0 Pro forma APM 98.9 108.8 93.8 94.9 396.4 94.8 100.5 Pro forma sales $ 924.9 $ 973.3 $ 911.8 $ 902.0 $ 3,712.0 $ 987.0 $ 991.5 4 IR Slides V17 - 9.26 324pm IR Deck - AVNT-2022.09.27 Pre Release v2

This is to certify that Fiber-Line, LLC 280 Performance Drive SE, Hickory, North Carolina 28602 USA Quality Management System ISO 9001:2015 Manufacture of textile components to cable manufacturers.

Unified social credit code: 91320412MA1NMF5W4P is in conformity with Quality Management System Standard: GB/T19001-2016 / ISO9001:2015 The certificate is valid to the following product(s)/service: Textile (Yarn), Glass Products (Yarn) Coating Processing Registration Address/ Physical Address: R&D Workshop 5, No. 8, Lanxiang Road, West Taihu Science and Technology Industrial Park, Changzhou City, Jiangsu Province, P.

SCCertificateRebrandA4Portrait CERTIFICATE OF REGISTRATION This is to certify that the management system of: Fiber-Line, LLC Main Site: 280 Performance Drive SE Hickory North Carolina 28602 United States has been registered by Intertek as conforming to the requirements of: ISO 9001:2015 The management system is applicable to: Manufacture of textile components to cable manufacturers.

We are reviewing, with a target to implement for 2024, appropriate KPI’s for Avient’s global approach for supply chain due diligence. Supplier Due Diligence ColorMatrix has a wide ranging supply chain that supports our European operations. Avient currently does not engage in verification of its supply chains to evaluate and address risks of human trafficking and slavery, nor does it currently conduct audits of its suppliers’ compliance with company standards for trafficking and slavery in supply chains.

FIBER-LINE™ PERFORMANCE ENHANCING COATINGS PRODUCT SELECTION GUIDE FIBER-LINE™ COATING SELECTION GUIDE COATING Bondcoat™ Adhesion Enhancing Colorcoat™ Fiber Color Packcoat™ Performance Enhancing Protexcoat™ UV Resistant Swellcoat™ Blocker Water Blocking Swellcoat™ Water Absorbing Wearcoat™ High Abrasion Blockcoat™ Anti-Wicking Repelcoat™ Water Repellant Flamecoat™ Flame Resistant FEATURES • Created for applications where an untreated fiber does not have the ability to provide the appropriate amount of bonding characteristics to another material • Provides adhesion to another fiber or substrate without impacting other performance properties • Improves adhesion of the fiber to the resin matrix it is introduced into • Enables industry standard “burst” tests or stringent delamination analysis • Designed to achieve vibrant colors for safety, identification, and aesthetics • Specialized formulas and binders adhere the pigment to the exterior of the individual filaments, while impregnating deep into the fiber bundle • Available by Pantone or RAL number • Compatible with a variety of composite resins including epoxy, polyurethane, and polyethylene • Stronger than solution-dyed fibers • Designed to add lubricity and temperature resistance at the filament level for braided compression packing • Coating at the fiber level versus the finished braid achieves higher % level coating • Fiber level coating extends the life of the braid and reduces required maintenance • Various formulations available • PTFE, silicone, graphite, and mineral oil • Created for high performance fibers that lack inherent ultraviolet (UV) resistance • Coating impregnates the individual fibers with a specialized resin for improved UV protection • Coating enhancements include UV inhibitors, absorbers and stabilizers • Improves the processing of the product via reduced filament snagging and friction • Low level water- blocking finish for any technical fiber or textile substrate • Provides water- blocked strength reinforcements for dry cable designs • Can absorb 5x to 15x its weight in water • Dust-free coating imparts a very soft fiber hand, advantageous to cable, rope, and other textile processes • Patented technology incorporates super absorbent polymer (SAP) suspended in a proprietary resin matrix • Used in the production of ‘dry-dry’ telecommunications, electromechanical, seismic, umbilical and power cables • Can absorb up to 100x its weight in water • Creates a stable gel when exposed to water • Functionally replaces flooding compounds, filling gels, spun SAF yarns, and water blocking tapes • Enables faster, more economical and robust cable manufacturing • Increases durability and abrasion resistance by encapsulating filaments in the fiber bundle • Extends the life of the product by reducing the effects of friction and yarn on yarn abrasion • Protects the fiber from degradation and filamentation • Ideal for high abrasion and high friction applications in a range of fiber constructions and environments • Wicking refers to the tendency of a yarn or other fiber to draw moisture into filaments via capillary action • Coatings designed to prevent moisture from wicking within and between fibers and strands • Protects Wire or Optical Fiber from damaging effects of moisture, which can cause a drop in signal and attenuation • Hydrophobic additives used to promote and enhance water repellancy in industrial applications • Creates a waterproof barrier that prevents moisture from further migration • Applied at various % levels to optimize for water-proof ratings • Designed to inhibit or slow the spread of fire/flame • Coupled to fibers with inherent flame and thermal resistance to boost performance • Added to fibers with weak flame resistance to improve burn rating SUITABLE FIBERS • Kevlar ® Para-Aramid • Nomex® Meta-Aramid • Vectran® LCP • Zylon® PBO • Technora® Fiber • Carbon Fiber • Kevlar ® Para-Aramid • Nomex® Meta-Aramid • Vectran® LCP • PET Polyester • Fiberglass • UHMWPE • Kevlar ® Para-Aramid • Nomex® Meta-Aramid • Carbon Fiber • Graphite Fiber • Fiberglass • PTFE Fiber • Kevlar ® Para-Aramid • Vectran® LCP • Zylon® PBO • Technora® Fiber • Kevlar ® Para-Aramid • Vectran® LCP • Zylon® PBO • PET Polyester (All shrinks) • UHMWPE • Kevlar ® Para-Aramid • Vectran® LCP • Zylon® PBO • Technora® Fiber • Fiberglass • PET Polyester (All shrinks) • Kevlar ® Para-Aramid • Vectran® LCP • Zylon® PBO • Carbon Fiber • PET Polyester (All shrinks) • UHMWPE • Kevlar ® Para-Aramid • Vectran® LCP • Zylon® PBO • Carbon Fiber • PET Polyester (All shrinks) • Fiberglass • Kevlar ® Para-Aramid • Vectran® LCP • Zylon® PBO • Carbon Fiber • PET Polyester (All shrinks) • Fiberglass • Kevlar ® Para-Aramid • Vectran® LCP • Zylon® PBO • PET Polyester (All shrinks) PRODUCTS • Belt & Hose Reinforcement Yarn • Strength Members • Industrial Fabric Yarn • Wire Harness Yarn • Ripcords • Strength Members • Wire Harness Yarn • Industrial Fabric Yarn • Braided compression rings and seals • Valve stem packing • Pump packing • Strength Members • Industrial Fabric Yarn • Wire Harness Yarn • Strength Members • Ripcords • Binder Yarn • Filler Yarn • Synthetic Wire Rope • Buffer Thread • Binder Yarn • Filler Yarn • Strength Members • Ripcords • FRP Rod • Ripcords • Strength Members • Synthetic Wire Rope • Industrial Fabric Yarns • Wire Harness Yarns • Ripcords • Strength Members • Binder Yarn • Industrial Fabric Yarns • Wire Harness Yarns • Ripcords • Strength Members • Binder Yarn • Industrial Fabric Yarns • Wire Harness Yarns • Industrial Fabric Yarns • Wire Harness Yarns • Strength Members Kevlar ® and Nomex® are trademarks of DUPONT SAFETY & CONSTRUCTION, INC.

Dyneema®, the world's strongest fiber™, enables unmatched levels of performance and protection for end-use applications, including ballistic personal protection, marine and sustainable infrastructure and outdoor sports

Dyneema®, the world’s strongest fiber™, enables unmatched levels of performance and protection for end-use applications, including ballistic personal protection, marine and sustainable infrastructure and outdoor sports