Unless otherwise stated, Operating Income, EBITDA and EPS figures included in this presentation are adjusted to exclude the impact of special items as defined in our quarterly earnings releases. $0.30 $0.52 2019 PF 2020 Q4 2020 ORGANIC PERFORMANCE 3 Sales $922 $997 2019 PF 2020 +8% Adjusted Operating Income Adjusted EPS $58 $80 2019 PF 2020 +38% +73% • Record 4th quarter sales, adjusted operating income and adjusted EPS performance • All segments delivered year-over-year sales and operating income growth, led by consumer and healthcare end markets • Clariant Masterbatch integration synergy capture ahead of schedule: $5 million realized in 2020 ($ in millions except EPS) (1) (1) (1) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Q4 2020 SEGMENT PERFORMANCE 4 Sales Operating Income $100 $100 $100 $922 $100 $100 $100 $997 Distribution CAI SEM Total 2019 2020 $178 $272 $490 $191 $305 $526 SEM Distribution CAI 2019PF 2020 +8% +7% +7% +12% $5 $5 $5 $58 $5 $5 $5 $80 Avient CAI SEM Total 2019 PF 2020 $17 $19 $40 $18 $30 $58 Distribution SEM CAI 2019PF 2020 +38% +45% +58% +6% (3) (3) ($ in millions) (1) (2) (1) Total company sales include intercompany sales eliminations (2) Total company reflects adjusted operating income and includes corporate costs (3) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition 2020 HIGHLIGHTS 5 • Completed transformational Clariant Masterbatch acquisition and created new brand name Avient • Increased pro forma adjusted EPS 11% from $1.74 to $1.93 as an essential supplier during the pandemic and due to growth in demand for consumer applications • Specialty Engineered Materials delivered record operating income on gains from composites • Achieved record free cash flow, increased dividend for 10th year in a row and delevered from 3.5x to 2.7x net debt to pro forma adjusted EBITDA • Culture is everything: Certified as a Great Place to Work® $133 $150 2019PF 2020PF 10% 23%8% 21% 4% 15% 2006 2020PF Healthcare Consumer Packaging Avient Portfolio Transformation 22% 59% CLARIANT MASTERBATCH: TRANSFORMATIONAL ACQUISITION 6 Clariant MB EBITDA Growth Purchase Price Multiple 10.8 9.6 6.5 2019PF 2020PF 2020PF w/ Full Synergies x x x • Acquisition of Clariant Masterbatch significantly expands presence in healthcare, packaging and consumer end markets • Strength of portfolio – 13% EBITDA growth as an essential supplier in COVID response and recovery • Acquisition completed on July 1, 2020 for $1.4 billion. We will deliver for our stakeholders through multiple value creation levers—many of which are unique to Avient: o Demand for sustainable solutions, healthcare, and composites, together with Clariant Masterbatch revenue synergies, that will drive 2021 revenue growth of 8% and long-term growth in excess of GDP o Clariant Masterbatch cost synergy capture will result in significant near-term benefit In addition, we remain committed to increasing annual dividends in line with earnings growth and opportunistically buying back shares, all while remaining modestly levered. Avient acquired the Clariant Masterbatch business (CMB) on July 1, 2020 (the “Acquisition Date”).

Avient acquired the Clariant Masterbatch business (CMB) on July 1, 2020 (the “Acquisition Date”). Unless otherwise stated, Adjusted Operating Income, Adjusted EBITDA and Adjusted EPS figures included in this presentation exclude the impact of special items as defined in our quarterly earnings releases. $86 $123 2020PF 2021 $0.53 $0.89 2020PF 2021 Q1 2021 – ORGANIC PERFORMANCE (TOTAL COMPANY) 3 Sales Adjusted Operating Income $991 $1,162 2020PF 2021 + 17% Adjusted EPS + 43% + 68% (in millions) (in millions) (1) (1) (1) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Q1 2021 SEGMENT PERFORMANCE 4 CAI $536 $609 Sales ($ in millions) SEM Distribution $64 $89 Operating Income (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition +14% +39% $290 $363 Sales $19 $24 Operating Income +25% +26% (1) $185 $217 Sales $22 $34 Operating Income +17% +55% SPECIALTY EBITDA MARGIN EXPANSION 5 CAI (1) 2018-2020 financial information is pro forma to include a full year of Clariant Masterbatch business acquisition 15.3% 15.2% 16.2% 19.1% 2018 2019 2020 Q1 2021 14.8% 15.2% 17.6% 19.4% 2018 2019 2020 Q1 2021 (1) SEM • Continued portfolio transformation to high-growth end markets and sustainable solutions • Clariant Masterbatch synergy realization • Investments in composites and outdoor high performance applications drive growth and mix improvements CAI EBITDA MARGIN EXPANSION 6 Legacy CAI 18.9% 18.9% 21.0% 2019 2020 Q1 2021 Legacy Clariant MB 11.9% 13.8% 17.4% 2019 2020 Q1 2021 • Early synergy capture translating to the bottom line • Positive mix with growth in healthcare, consumer and packaging end-markets • World-class vitality index of 36% represents sales from products introduced in the last five years. We will deliver for our stakeholders through multiple value creation levers—many of which are unique to Avient: o Demand for sustainable solutions, healthcare, and composites, together with Clariant Masterbatch revenue synergies, that will drive 2021 revenue growth of 14% and long-term growth in excess of GDP o Clariant Masterbatch cost synergy capture will result in significant near-term benefit In addition, we remain committed to increasing annual dividends in line with earnings growth and opportunistically buying back shares, all while remaining modestly levered.

Avient acquired the Clariant Masterbatch business (CMB) on July 1, 2020 (the “Acquisition Date”). That’s Avient. 21,000+ CUSTOMERS >75% ARE CUSTOMIZED SOLUTIONS TO UNIQUE SPECIFICATIONS of sales 5 In July 2020, we completed the acquisition of the Clariant Masterbatch business, the largest acquisition in the 20-year history of our company. It’s in this spirit that we joined legacy PolyOne and the Clariant Masterbatch business, two complementary businesses, and formed a new one that we’ve named Avient.

Avient and IVCC created a new medium scale masterbatch production laboratory in China to support research and development into non-registered novel active ingredients for incorporation into long lasting treated nets. Avient has extensive global ability in the formulation development and manufacturing of groundbreaking material solutions to support malaria control, including a technologically advanced anti-mosquito masterbatch for use in long lasting treated nets. The novel insecticides in development are formulated tightly into the masterbatch, allowing best bio-efficiency performance with a permanent but slow release to the surface—just enough to kill any mosquito by contact.

Avient and IVCC created a new medium scale masterbatch production laboratory in China to support research and development into non-registered novel active ingredients for incorporation into long lasting treated nets. Avient has extensive global ability in the formulation development and manufacturing of groundbreaking material solutions to support malaria control, including a technologically advanced anti-mosquito masterbatch for use in long lasting treated nets. The novel insecticides in development are formulated tightly into the masterbatch, allowing best bio-efficiency performance with a permanent but slow release to the surface—just enough to kill any mosquito by contact.

Silicone masterbatch dispersions use a silicone elastomer gum binder to create masterbatches. These products are available in cuttable masterbatches or slabs for certain thermoset applications.

KEY CHARACTERISTICS • Excellent wear resistance • Reduced friction, heat build-up, noise & vibration • Improved processability & surface finish on parts • Lower power requirements & low maintenance • Reduced tool contamination and corrosion • Reduction in lubricant migration time • Design flexibility • Reduced weight • Chemically resistant MARKETS & APPLICATIONS Ideal for applications in many industries including transportation, industrial, household, electrical and electronics including: • Transportation – Fuel flap axis, interior door handle axis, gears, seat mechanics, sun-roof sliding mechanisms, side mirror parts • Industrial – Conveyor belt gears, pulleys • Household – Window/door runners, furniture parts, hinges • Electrical and electronics – Electrical plug safety parts, printers, barcode scanners PRODUCT BULLETIN EUROPE GRADES ASIA GRADES Material Name Base Resin Reinforcing Filler Lubricating Filler LubriOne LB6000-5024 RS HI natural PA6 GF10 UHMWPE Lubrione LB6000-5021 RS S1 GF30 UHMWPE Lubrione LB6000-5021 RS X2 GF30 UHMWPE LubriOne LB6000-5019 X1 black GF50 UHMWPE LubriOne LB6700-5001 RS AF black PA6/PA66 GF50 UHMWPE LubriOne NN-000/01M black SO PA66 Unfilled MoS2 LubriOne REC LB6600-5030 RS grey GF33 Graphite LubriOne LB3300-5010 RS natural PBT GF20 UHMWPE LubriOne LB3300-5005 RS natural MI20 UHMWPE LubriOne REC LB3220-5001 RS C natural X1 PC GF10 UHMWPE LubriOne LB8900-5010 GP grey PKE Unfilled Graphite LubriOne LB8900-5006 RS PE natural GF20 UHMWPE LubriOne LB8900-5004 RS PE natural GF30 UHMWPE LubriOne LB4200-5022 black POM Unfilled MoS2 LubriOne LB4200-5023 natural Unfilled UHMWPE LubriOne LB9200-5012 RS PE natural PPS GF30 UHMWPE Material Name Base Resin Reinforcing Filler Lubricating Filler LubriOne LB6600-8056 LB BK001 PA66 Unfilled LDPE LubriOne LB6600-8054 RS BK001 CF30 LDPE LubriOne LB6600-8052 RS BK001 GF30 LDPE LubriOne LB4200-8032 RS NC001 POM GF30 LDPE LubriOne LB4200-8030 AR NC001 AF10 LDPE LubriOne LB4200-8026 LB BK001 Unfilled LDPE+HDPE LubriOne LB3200-8022 LB BK001 PC Unfilled UHMWHDPE LubriOne LB3200-8021 RS BK001 GF30 UHMWHDPE LubriOne LB7600-8008 RS BK001 PPO GF20 UHMWHDPE Copyright © 2024, Avient Corporation.

Avient acquired the Clariant Masterbatch business (CMB) on July 1, 2020 (the “Acquisition Date”). Q 2 2021 P E RFO R MA N CE U P DAT E $69 $122 2020PF 2021 $0.42 $0.87 2020PF 2021 Q2 2021 – ORGANIC PERFORMANCE (TOTAL COMPANY) 4 Sales Adjusted Operating Income $870 $1,235 2020PF 2021 + 42% Adjusted EPS + 77% + 107% (in millions) (in millions) (1) (1) (1) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Q2 2021 SEGMENT PERFORMANCE 5 CAI $488 $624 Sales ($ in millions) SEM Distribution $54 $86 Operating Income +28% +59% $239 $404 Sales $15 $24 Operating Income +69% +60% (1) $159 $241 Sales $17 $37 Operating Income +52% +118% (1) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition SPECIALTY EBITDA MARGIN EXPANSION 6 CAI (1) 2018-2020 financial information is pro forma to include a full year of Clariant Masterbatch business acquisition 15.3% 15.2% 16.2% 18.5% 2018 2019 2020 YTD 2021 14.8% 15.2% 17.6% 19.1% 2018 2019 2020 YTD 2021 (1) SEM • Continued portfolio transformation to high-growth end markets and sustainable solutions • Clariant Masterbatch synergy realization • Investments in composites and outdoor high performance applications drive growth and mix improvements CAI EBITDA MARGIN EXPANSION 7 Legacy CAI 18.9% 18.9% 20.3% 2019 2020 YTD 2021 Legacy Clariant MB 11.9% 13.8% 16.8% 2019 2020 YTD 2021 • Synergy capture translating to the bottom line • Positive mix with growth in healthcare, consumer and packaging end-markets • World-class vitality index of 35% represents sales from products introduced in the last five years. We will deliver for our stakeholders through multiple value creation levers—many of which are unique to Avient: o Demand for sustainable solutions, healthcare, and composites, together with Clariant Masterbatch revenue synergies, that will drive long-term revenue growth in excess of GDP o Clariant Masterbatch cost synergy capture will result in significant near-term benefit In addition, we remain committed to increasing annual dividends in line with earnings growth and opportunistically buying back shares, all while remaining modestly levered.

POLYSTRAND CONTINUOUS FIBER REINFORCED THERMOPLASTIC TAPES & LAMINATES ™ PRODUCT SELECTION GUIDE Material Min Finished Slit Width Max Finished Slit Width Unidirectional Tape 2” (50.8 mm) 24” (610 mm) X-Ply™, 3-Ply, 4-Ply 2” (50.8 mm) 120” (3048 mm) SLITTING CAPABILITIES Max Unfinished Width Max Finished Slit Width Max Finished Roll Weight Max Roll Length (X-Ply™, Full Width) Up to 125" (3175 mm) Up to 120" (3048 mm) Up to 10,000 lbs (4500 kg) Up to 4,000 ft (1200 m) LAMINATION LINE CAPABILITIES Tape Width Resin Capabilities Fiber Inputs Max Tape Roll Weight Max Roll Length 25" (635 mm) Standard Width, Slit Capabilities PP, PE, PETG, aPET, PA6 Additional polymers in development E-Glass S-Glass, Aramid Up to 1,800 lbs (816 kg) Up to 12,000 ft (366 m) TAPE LINE CAPABILITIES Product Name Resin Fiber Content Areal Weight Nominal Thickness1 Flexural Modulus ASTM D790 Flexural Strength ASTM D790 Tensile Modulus ASTM D3039 Tensile Strength ASTM D3039 wt % lb/ft2 oz/yd2 gsm in mm ksi GPa ksi MPa ksi GPa ksi MPa 6337 PP 63 0.10 14.75 500 0.015 0.38 3570 24.6 58 402 4010 27.6 111 765 6531 65 0.05 7.40 251 0.006 0.15 4020 27.7 73 505 4900 33.8 140 965 6536 0.07 10.32 350 0.009 0.23 4050 27.9 72 494 4500 31.0 131 903 6538 0.14 19.77 670 0.019 0.48 3540 24.4 47 324 4260 29.4 100 689 7034B PP-Black 70 0.07 10.24 347 0.009 0.23 4400 30.3 83 569 5000 34.5 111 765 6020 PE 60 0.08 11.95 405 0.012 0.30 3600 24.8 54 372 3800 26.2 109 752 6621 66 0.10 13.97 474 0.012 0.30 4000 27.6 55 379 4720 32.5 126 869 68222 68 0.16 23.34 791 0.022 0.56 4060 28.0 55 379 4560 31.4 113 779 5843 PETG 58 0.08 11.85 402 0.008 0.20 3680 25.4 90 621 4400 30.3 137 945 5840B aPET-Black 58 0.09 13.00 441 0.009 0.23 4120 28.4 107 738 5080 35.0 150 1034 5860B PA6-Black 58 0.08 11.48 389 0.010 0.25 3620 25.0 104 717 3970 27.4 108 745 TYPICAL PROPERTIES - UNIDIRECTIONAL FIBERGLASS REINFORCED THERMOPLASTIC TAPE 1 Nominal thicknesses indicated are baseline values that may vary depending on material processing and other variables. TYPICAL PROPERTIES - MULTI-AXIAL LAMINATES 0° Testing Orientation 90° Testing Orientation Product Name Resin Fiber Content Laminate Layers & Orientation Areal Weight Nominal Thickness1 Flexural Modulus ASTM D790 Flexural Strength ASTM D790 Tensile Modulus ASTM D3039 Tensile Strength ASTM D3039 Flexural Modulus ASTM D790 Flexural Strength ASTM D790 Tensile Modulus ASTM D3039 Tensile Strength ASTM D3039 wt % lb/ft2 oz/yd2 gsm in mm ksi GPa ksi MPa ksi GPa ksi MPa ksi GPa ksi MPa ksi GPa ksi MPa 6337 PP 63 0/90 0.20 29.49 1000 0.031 0.79 - - - - 2020 13.9 59.7 412 - - - - 2020 13.9 59.7 412 0/90/0 0.31 44.24 1500 0.045 1.14 2250 15.5 46.4 320 3070 21.2 79.4 547 186 1.3 9.7 67 1330 9.2 39.6 273 0/90/90/0 0.41 58.98 2000 0.057 1.45 2000 13.8 44.0 303 2400 16.5 60.6 418 496 3.4 20.7 143 2210 15.2 56.4 389 6531 65 0/90 0.10 14.80 502 0.014 0.36 - - - - 2240 15.4 60.9 420 - - - - 2240 15.4 60.9 420 0/90/0 0.15 22.20 753 0.020 0.50 2650 18.3 58.3 402 3100 21.4 82.8 571 280 1.9 NB2 NB2 1670 11.5 42.5 293 0/90/90/0 0.21 29.61 1004 0.027 0.68 2260 15.6 51.5 355 2470 17.0 62.2 429 580 4.0 30.4 210 2310 15.9 59.6 411 6536 0/90 0.14 20.71 702 0.021 0.53 - - - - 1980 13.7 60.5 417 - - - - 1980 13.7 60.5 417 0/90/0 0.22 31.06 1053 0.029 0.74 2309 15.9 48.3 333 2730 18.8 81.5 562 245 1.7 13.0 90 1490 10.3 44.3 305 0/90/90/0 0.29 41.41 1404 0.037 0.94 2164 14.9 47 324 2170 15.0 59.6 411 512 3.5 25.4 175 2340 16.1 71.2 491 6538 0/90 0.27 39.54 1341 0.034 0.86 - - - - 2220 15.3 60.0 414 - - - - 2220 15.3 60.0 414 0/90/0 0.41 59.53 2018 0.057 1.44 2825 19.5 40.9 282 2780 19.2 67.6 466 218 1.5 10.2 70 1410 9.7 40.0 276 0/90/90/0 0.55 79.37 2691 0.073 1.85 1880 13.0 32.4 223 2060 14.2 54.0 372 478 3.3 18.0 124 2360 16.3 61.0 421 7034B PP-Black 70 0/90 0.14 20.48 694 0.016 0.40 - - - - 2680 18.5 62.0 427 - - - - 2680 18.5 62.0 427 0/90/0 0.21 30.72 1041 0.028 0.71 1750 12.1 55.9 385 3710 25.6 75.1 518 160 1.1 11.3 78 1440 9.9 36.2 250 0/90/90/0 0.28 40.95 1388 0.036 0.90 1700 11.7 40.4 279 2800 19.3 55.7 384 432 3.0 25.4 175 2350 16.2 52.4 361 6020 PE 60 0/90 0.17 23.90 810 0.023 0.57 - - - - 1830 12.6 52.00 359 - - - - 1830 12.6 52.0 359 0/90/0 0.25 35.86 1216 0.033 0.84 2265 15.6 40.0 276 2740 18.9 68.2 470 181 1.2 10.0 69 1350 9.3 35.3 243 0/90/90/0 0.33 47.81 1621 0.044 1.12 1810 12.5 30.0 207 2000 13.8 48.0 331 502 3.5 22.0 152 1820 12.5 46.0 317 6621 66 0/90 0.19 27.94 947 0.025 0.65 - - - - 2280 15.7 60.0 414 - - - - 2280 15.7 60.0 414 0/90/0 0.29 41.90 1421 0.040 1.01 2490 17.2 37.0 255 2900 20.0 70.0 483 165 1.1 9.7 67 1440 9.9 38.0 262 0/90/90/0 0.39 55.87 1894 0.053 1.35 1810 12.5 29.0 200 2160 14.9 58.0 400 508 3.5 21.0 145 2170 15.0 53.0 365 5843 PETG 58 0/90 0.16 23.70 804 0.020 0.50 - - - - 2050 14.1 59.6 411 - - - - 2050 14.1 59.6 411 0/90/0 0.25 35.55 1205 0.030 0.76 2800 19.3 89.0 614 2900 20.0 78.0 538 397 2.7 NB2 NB2 1580 10.9 42.5 293 0/90/90/0 0.33 47.40 1607 0.039 0.99 2540 17.5 72.0 496 2300 15.9 57.7 398 780 5.4 35.0 241 2170 15.0 63.0 434 5840B aPET-Black 58 0/90 0.18 26.01 882 0.021 0.53 - - - - 2530 17.4 55.3 381 - - - - 2530 17.4 55.3 381 0/90/0 0.27 39.01 1323 0.032 0.82 2986 20.6 91.1 628 3160 21.8 68.7 474 252 1.7 20.0 138 1580 10.9 36.9 254 0/90/90/0 0.36 52.01 1763 0.042 1.07 3065 21.1 73.1 504 2570 17.7 54.2 374 813 5.6 37.0 255 2440 16.8 55.6 383 5860B PA6-Black 58 0/90 0.16 22.95 778 0.021 0.52 - - - - 2190 15.1 56.00 386 - - - - 2190 15.1 56.0 386 0/90/0 0.24 34.43 1167 0.034 0.86 2510 17.3 117.0 807 2760 19.0 63.7 439 657 4.5 22.2 153 1630 11.2 39.7 274 0/90/90/0 0.32 45.91 1556 0.046 1.18 2210 15.2 106.0 731 2090 14.4 45.6 314 1110 7.7 50.8 350 2150 14.8 57.4 396 1 Nominal thicknesses indicated are baseline values that may vary depending on material processing and other variables.

Specific Gravity Color Index Heat Stability (F) Light- fastness Carrier White HC Plus-35000 Titanium Dioxide 60 1.78 White 6 Above 400° I/O LSR HC Plus-35100 Titanium Dioxide 75 2.31 White 6 Above 400° I/O HCR Yellow HC Plus-35011 Benzimidazolone Yellow 10 1.01 Yellow 180 350°–400° I/O (MASS) LSR HC Plus-35111 Benzimidazolone Yellow 24 1.49 Yellow 180 350°–400° I/O (MASS) HCR Orange HC Plus-35020 Monoazo Orange 10 1.02 Orange 64 350°–400° I/O LSR HC Plus-35120 Monoazo Orange 25 1.19 Orange 64 350°–400° I/O HCR Red HC Plus-35032 Red Iron Oxide VYS 50 1.60 Red 101 Above 400° I/O LSR HC Plus-35132 Red Iron Oxide VYS 70 2.17 Red 101 Above 400° I/O HCR HC Plus-35031 Special Azoic 15 1.03 Red 187 350°–400° I/O LSR HC Plus-35131 Special Azoic 33 1.33 Red 187 350°–400° I/O HCR Blue HC Plus-35040 3 Phthalocyanine Blue GS 25 1.07 Blue 15 Above 400° I/O LSR HC Plus-35140 3 Phthalocyanine Blue GS 40 1.42 Blue 15 Above 400° I/O HCR HC Plus-35041 Ultramarine Blue 45 1.32 Blue 29 Above 400° I/O LSR HC Plus-35141 Ultramarine Blue 60 1.51 Blue 29 Above 400° I/O HCR Green HC Plus-35050 Phthalocyanine Green 25 1.13 Green 7 Above 400° I/O LSR HC Plus-35150 Phthalocyanine Green 40 1.71 Green 7 Above 400° I/O HCR Violet HC Plus-35033 Quinacridone Red 20 1.04 Violet 19 Above 400° I/O LSR HC Plus-35130 Quinacridone Red 40 1.40 Violet 19 Above 400° I/O HCR Brown HC Plus-35070 Yellow Inorganic - Cr/Sb/Ti Oxide 30 1.26 Brown 24 Above 400° I/O LSR HC Plus-35170 Yellow Inorganic - Cr/Sb/Ti Oxide 60 1.79 Brown 24 Above 400° I/O HCR Black HC Plus-35080 Carbon Black 12 1.03 Black 7 Above 400° I/O LSR HC Plus-35180 Carbon Black 30 1.14 Black 7 Above 400° I/O HCR Copyright © 2024, Avient Corporation.