UV SPLASH BLOCK GREEN 3 SILVER 428C 4 SILVER 428C 3

WHITE 3 NARANJA CARCAL 3 SILVER 4

S DM502PCH#3 PEACH #3 S1-290-4 THINNER Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

Each performance unit is equal 78,620 (2) 1,048,269 (2) 2,096,538 (2) - 118,125 (3) 945,000 (3) 1,890,000 (3) - 2/10/2016 35,067 105,200 (4) 871,757 2/10/2016 34,750 (5) 868,055 27,244 (2) 363,250 (2) 726,500 (2) - 28,250 (3) 226,000 (3) 452,000 (3) - 2/10/2016 8,383 25,150 (4) 208,410 2/10/2016 8,300 (5) 207,334 18,578 (2) 247,712 (2) 495,424 (2) - 16,875 (3) 135,000 (3) 270,000 (3) - 2/10/2016 5,000 15,000 (4) 124,300 2/10/2016 4,950 (5) 123,651 16,357 (2) 218,096 (2) 436,192 (2) - 14,500 (3) 116,000 (3) 232,000 (3) - 2/10/2016 4,300 12,900 (4) 106,898 2/10/2016 4,250 (5) 106,165 16,849 (2) 224,654 (2) 449,308 (2) - 15,250 (3) 122,000 (3) 244,000 (3) - 2/10/2016 4,517 13,550 (4) 112,284 2/10/2016 4,500 (5) 112,410 S.D. B-4 (x) “Perforff mance Share” means a bookkeeping entry that records the equivalent of one Common Share awarded pursuant to Section 8 of this Plan. B-7 4.

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. To provide comparable results, the company references “pro forma” financial metrics, which include the business results of Avient Protective Materials for periods prior to the Acquisition Date, as if the transaction occurred on January 1, 2021 and reflect Distribution as a discontinued operation. 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$ COLOR, ADDITIVES AND INKS 7% (4%) (9%) 6% (10%) 0% 1% 2% 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 10% 4 (1%) PRO FORMA SPECIALTY ENGINEERED MATERIALS 16%8% (8%) (8%) 3% (6%) (6%) (2%) 2% 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 10% (3%) (21%) 3% 9% 5% 7% (5%) (9%) (1%) (1%) (12%) 1% 17% 8% (14%) 11% 14% 10% 11% 2% (3%) 5% 8% (5%) 7% 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 March 31, 2022 March 31, 2021 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 June 30, 2022 June 30, 2021 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 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 December 31, 2021 Year Ended December 31, 2021 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 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 Q1 2021 Q2 2021 Q3 2021 Pro forma Pro forma Pro forma Pro forma Pro forma Pro forma 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 Q4 2021 YTD 2021 Pro forma Pro forma Pro forma Pro forma 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 Q1 2022 Q2 2022 Pro forma Pro forma Pro forma Pro forma 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 Q1 2021 Q2 2021 Q3 2021 Pro forma Pro forma Pro forma Pro forma Pro forma Pro forma 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 Q4 2021 YTD 2021 Pro forma Pro forma Pro forma Pro forma 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 Q1 2022 Q2 2022 Pro forma Pro forma Pro forma Pro forma 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 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 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

TAHOE PC 3 B-T925-3-4 YELLOW 1

Shanghai, China (3) Pune, India (1) 24. Shanghai, China (3) Pune, India (1) 24. Pune, India 1 2 3 4 5 6 72 Sustainability Report | 201872 Sustainability Report | 2018 Sustainability Report | 2018 73 Performance Overview The fourth “P” of our sustainability cornerstones is Performance.

D_21_851633 Page 1 / 5 EXTRAIT Avient S.à r.l. Kennedy 1855 Réviseur d'entreprises agréé 01/07/2021 Déterminée Date d'expiration du mandat 01/07/2024 Page 5 / 5 Pour extrait conforme [3] Luxembourg, le 16/11/2021 Pour le gestionnaire du registre de commerce et des sociétés [4] [1] Information mise à jour mensuellement sur base de l'article 12§3 de la loi modifiée du 19 décembre 2002 concernant le registre de commerce et des sociétés ainsi que la comptabilité et les comptes annuels des entreprises 4] Le présent extrait est établi et signé électroniquement.

Immediately accretive to EPS, the acquisition is expected to deliver $0.95 of incremental adjusted EPS upon full synergy realization. 14 (1) 2020 estimate and Pro forma for acquisition of the Clariant Masterbatch business (2) Adjusted EPS excludes step up D&A for the Clariant Masterbatch acquisition (3) Assumes $75MM in synergies EBITDA Margin Expansion and EPS Accretion 11.9% 14.2% 17.1% Avient PF Avient PF ex. Whether an additional line at an existing manufacturing plant, or a new facility in a growing region, we ramp-up quickly and cost-efficiently. 17 Capex / Revenue 2021E (%) AVIENT IS ASSET LIGHT Avient Specialty Other 2 3 2 2 3 3 3 3 4 5 5 5 5 5 6 6 7 7 9 t (E x c l. Median: 5%Median: 3% Avient Specialty Other Free Cash Flow Conversion (1) 2021E (%) Being asset light helps us to generate strong free cash flow that is in line with specialty formulators.

Shots Composite Panel Nominal Thickness Nominal Weight Level 1 9mm full metal copper jacket with lead core 1175 ft/sec 358 m/sec 3 GlasArmor™ Level 1 0.256 in 6.5 mm 2.7 lb/ft2 13.2 kg/m2 Level 2 .357 magnum jacketed head soft point 1250 ft/sec 381 m/sec 3 GlasArmor™ Level 2 0.384 in 9.8 mm 4.0 lb/ft2 19.5 kg/m2 .44 magnum lead semi-wadcutter gas checked 1350 ft/sec 411 m/sec 3 GlasArmor™ Level 3 0.500 in 12.7 mm 5.2 lb/ft2 26.4 kg/m2 ThermoBallistic™ Level 3 0.440 in 11.2 mm 3.9 lb/ft2 19.0 kg/m2 PR OT EC TI O N L EV EL S Level 4–8: Customized solutions available, contact Avient to learn more. Characteristic GlasArmor Thermoset Panels ThermoBallistic Thermoplastic Panels Steel Concrete Performance-to-Weight            Bullet Resistance – Pistols           Bullet Resistance – Rifles    NA1     Temperature Performance        2         UV Resistance       3         Electrical Conductivity              Flame Retardance    5   4         Ease of Installation             1 Ballistic resistance to rifle fire can be achieved by layering ThermoBallistic and GlasArmor panels – contact Avient 2 ThermoBallistic panels made with polypropylene resin systems 3 UV resistance is achieved using surface polymeric films 4 Flame retardant additives can be incorporated upon request under some circumstances 5 Fire rated for 1-hour per ASTM E-119-09c when tested in an interior wall system Compare the different materials used for ballistic protection https://go.avient.com/BallisticProtection? gl=1*qdsy99*_ga*NjU3OTY5NDk3LjE3MzEzMzIyODg.