LC 389-121 GEON W9300 NAT 0000

70-BK-121 BLACK GEON W9300 NAT 0000

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

Homepage // News Center // Keep Deep Colors Vivid in Outdoor Environments with Geon™ Bold Vinyl Solutions Capstock made from Geon Bold material is a cost effective alternative to painting, capping or laminating with materials such as fluoropolymers. Caption: Decking and railings from Geon™ Bold vinyl capstock display rich, dark color that stands up to the elements.

Homepage // News Center // PolyOne Highlights New Geon™ Cellular Vinyl at Plastics Extrusion World Expo In addition to Geon Cellular Vinyl, PolyOne will be showcasing several other technologies at the Expo, including: Additionally, Kristin Meyers, Geon senior industry manager for PolyOne, will be presenting ‘Solutions in Dark Color Outdoor Architectural Applications’ on May 8 in the Pipe & Profile Theater at the event.

These inks offer the possibility of an even lower curing temperature, with a cure range from 250°F – 320°F (121°C-160°C), as well as improved bleed resistance.

Newlin Page 6 Today’s Objectives • Clear understanding of our mix improvement strategy • Instill confidence in PolyOne as a growth companygrowth company • Provide exposure and build relationships with our exceptional management team Unveiling of 2015 Performance Targets Page 7 • Geon and M.A.

It can also be steam autoclaved using temperatures up to 250°F (121°C).

McAlindon (24) Page 24 Award-Winning Marketing Campaign Page 25 2012 Range Rover Evoque Interior • Color harmonization across 15 unique color-and-polymer combinations • Eliminated need for multiple pre- colored materials • Reduced Land Rover’s working capital Page 26 KOR Delta Hydration Vessel • Specialty TPE formulation overcame performance issues • Eliminated secondary assembly process for increased operational efficiency Interior seal Flip-top seal Bottom ring Page 27 Friedrich Kühl® Decorative Air Conditioner Housing • Replaced painted ABS housing with Geon™ solution • Reduced operating noise • Simplified manufacturing footprint to drive significant cost savings Page 28 • Focused on markets with high growth and profit potential • Leveraging our in-depth knowledge of formulation Focused Efforts in Attractive Industry Segments $113 $260 Healthcare and processing to develop market driven solutions • Aligning resources across the organization to drive growth in target markets $152 $228 2006 2011 Sustainable Solutions (Revenue in $ millions) 2006 2011 2006 2011 2006 2011 Page 29 • Design service collaboration • Doubled productivity and improved yield rates • Substantial reduction in overall manufacturing costs Pulmonary Device Page 30 Innovating for the future… Rejuvenate a mature industry with new products and processes Products designed for “next life” instead of “end life” Plastics: Key to Future Sustainable Development …Making a difference today!

Accelerator Dispersions DPG Aquamix 165 50 1, 3 Diphenylguanidine DPTT (DPTH) Aquamix 122 50 Dipentamethylenethiuram Hexasulfide MBT Aquamix 305 50 2-mercaptobenzothiazole MBTS Aquamix 111 50 Benzothiazyldisulfide TETD Aquamix 181 50 Tetraethylthiuram Disulfide TMTD Aquamix 121 55 Tetramethylthiuram Disulfide TMTM Aquamix 179 50 Tetramethylthiuram Monosulfide ZBEC Aquamix 167 40 Zinc Dibenzyldithiocarbamate ZDBC Aquamix 129 50 Zinc Dibutyldithiocarbamate ZDEC Aquamix 130 50 Zinc Diethyldithiocarbamate ZDMC Aquamix 131 50 Zinc Dimethyldithiocarbamate ZMBT Aquamix 128 50 Zinc 2-mercaptobenzothiazole Aq uam ix ™ D ispersio ns & Em ulsio ns AMERICAS PolyOne Corporation Polymer Coating Systems 1675 Navarre Rd. Accelerator Dispersions DPG Aquamix 165 50 1, 3 Diphenylguanidine DPTT (DPTH) Aquamix 122 50 Dipentamethylenethiuram Hexasulfide MBT Aquamix 305 50 2-mercaptobenzothiazole MBTS Aquamix 111 50 Benzothiazyldisulfide TETD Aquamix 181 50 Tetraethylthiuram Disulfide TMTD Aquamix 121 55 Tetramethylthiuram Disulfide TMTM Aquamix 179 50 Tetramethylthiuram Monosulfide ZBEC Aquamix 167 40 Zinc Dibenzyldithiocarbamate ZDBC Aquamix 129 50 Zinc Dibutyldithiocarbamate ZDEC Aquamix 130 50 Zinc Diethyldithiocarbamate ZDMC Aquamix 131 50 Zinc Dimethyldithiocarbamate ZMBT Aquamix 128 50 Zinc 2-mercaptobenzothiazole Aq uam ix ™ D ispersio ns & Em ulsio ns AMERICAS PolyOne Corporation Polymer Coating Systems 1675 Navarre Rd.