VERSAFLEX™ PF Capa de adherencia Versaflex™ PF para películas de protección de superficies BOLETÍN TÉCNICO Propiedades Versaflex PF MD6727 Versaflex PF MD6741 Versaflex PF MD6649 Versaflex PF 9512 Versaflex PF MD6666 Versaflex PF MD6748 Versaflex PF MD6700 Características Baja adherencia Baja adherencia; se utiliza para ajustar el revestimiento con MD6700 Baja-media adherencia Oferta de valor Adherencia media Bajo contenido de gel/residuos Construcción de baja adherencia Alta adherencia Resistencia al desprendimiento Baja Baja-media Media Media-Alta Media-Alta Alta Alta Aplicaciones Películas ópticas Electrodomésticos Plásticos Construcción / Metales sin recubrimiento Metales acabados Acero/Metales pintados Metales sin recubrimiento MFR a 190 °C/2,16 kg -- 4,5 17 5,4 21 4,8 6,5 MFRa@ 230 °C/2,16 kg 10 20 -- -- -- -- -- Gravedad específica, g/cc 0,92 0,91 0,92 0,92 0,94 0,94 0,94 Dureza, Límite A 50 49 37 38 37 31 30 G' a 23 °C, Pa 28,0 x 105 10,4 x 106 8,3 x 105 -- 9,9 x 105 11,8 x 105 10,0 x 105 Tg DMA, °C -29 -30 -9 10 11 15 21 Película LDPE/Versaflex PF1 Desprendimiento de 180°, N/25 mm Acero inoxidable después de 20 minutos a 25 °C 0,5 2,2 3,2 6,1 6,7 8,5 8,6 después de 7 días a 25 °C 0,6 2,7 4,3 5,5 8,2 8,3 10,3 PMMA2 después de 20 minutos a 25 °C 1,1 1,7 3,8 4,9 6,9 8,3 8,8 después de 20 minutos a 75 °C 2,8 4,1 5,1 6,9 9,0 10,7 11,8 después de 7 días a 75 °C 4,0 4,4 5,9 9,8 8,4 9,8 10,3 Policarbonato3 después de 20 minutos a 25 °C 1,4 2,2 3,8 6,8 6,3 8,4 7,0 después de 20 minutos a 75 °C 3,4 4,8 6,7 8,8 8,8 10,0 11,8 después de 7 días a 75 °C 4,6 6,5 7,5 10,6 11,6 10,6 13,8 1 Grosor de la película: LDPE de 51 micras/Versaflex PF de 25 micras. 2 Arkema Plexiglas™ V052-100 (Plexiglas es una marca comercial de Arkema France Corp). 3 Sabic Lexan™ L52-111 (Lexan es una marca comercial de Sabic Innovative Plastics).

KEY PERFORMANCE ADVANTAGES Southern Yellow Pine1 Equivalent Wood Pole GridCore FRP Pole2 14 in x .750 in Length (ft) Load Class3 Allowable Class Load4 (kip) Weight (lb) Deflection5 (in) Weight (lb) Deflection5 (in) 40 3 1.95 1360 35 1040 12 2 2.41 1580 32 14 1 2.93 1810 30 18 H1 3.51 2050 28 21 H2 4.16 2310 26 25 45 3 1.95 1630 45 1170 17 2 2.41 1880 41 21 1 2.93 2160 38 26 H1 3.51 2450 36 31 H2 4.16 2760 33 37 50 3 1.95 1910 56 1300 24 2 2.41 2210 52 30 1 2.93 2530 48 36 H1 3.51 2880 45 44 H2 4.16 3240 42 52 55 3 1.95 2210 68 1430 33 2 2.41 2550 63 40 1 2.93 2930 58 49 H1 3.51 3320 54 59 H2 4.16 3740 51 70 60 3 1.95 2520 82 1560 43 2 2.41 2910 76 53 1 2.93 3340 70 65 H1 3.51 3790 65 78 H2 4.16 4270 61 92 65 3 1.95 2840 97 1690 56 2 2.41 3290 90 69 1 2.93 3770 83 84 H1 3.51 4280 77 100 H2 4.16 4820 72 119 70 3 1.95 3180 114 1820 71 2 2.41 3690 105 87 1 2.93 4220 97 106 H1 3.51 4790 90 127 H2 4.16 5390 85 150 POLE SELECTION GUIDE 1 Wood properties data are per ANSI O5.1-2022 Table 1.

FX +4.6% FX -1.5% Total Avient +3.1% Note: Regional Sales Percentages exclude impact of foreign exchange Q2 2024 SEGMENT PERFORMANCE ( C O L O R , A D D I T I V E S & I N K S ) $525 $542 Q2 23 Q2 24 $94 $108 Q2 23 Q2 24 19.9% Sales Adjusted EBITDA (in millions) (in millions) Sales Adjusted EBITDA 7 17.9% +200 bps * * * Adjusted EBITDA Margin % • Organic sales growth in all regions led by Americas • Raw material deflation combined with cost reduction actions drove EBITDA margin expansion + 3% (+5% excluding FX) + 15% (+17% excluding FX) Q2 2024 SEGMENT PERFORMANCE ( S P E C I A LT Y E N G I N E E R E D M AT E R I A L S ) $301 $308 Q2 23 Q2 24 $60 $64 Q2 23 Q2 24 20.6% Sales Adjusted EBITDA (in millions) (in millions) Sales Adjusted EBITDA 8 19.8% +80 bps * * * Adjusted EBITDA Margin % • Sales growth in consumer, healthcare and building & construction end markets offset by weaker demand in telecommunications • EBITDA margin expansion driven by positive end market mix as well as raw material deflation + 2% (+4% excluding FX) + 7% (+8% excluding FX) 2 0 2 4 G U I D A N C E FY 20 24 GUIDA NC E Previous (May 7) Current Adjusted EBITDA $510 to $535 million $515 to $540 million Adjusted EPS $2.50 to $2.65 $2.55 to $2.70 Interest Expense $105 million $105 million Adjusted Effective Tax Rate 23% to 25% 23% to 25% Capital Expenditures ~$140 million ~$140 million 10 Q3 2024: Adjusted EPS of $0.62 11 Highlights • Provides performance updates on 2030 Sustainability Goals • Reduced company’s Scope 1 & 2 GHG emissions by 48% since 2019 • Highlights ESG performance ratings, certifications, and awards, including recent upgrades by Ecovadis to Gold and CDP to A- • Reflects Great Place to Work® culture focused on health, safety and employee engagement 20 23 SUSTAI NA BILI TY REPORT 11 Sustainability for a Better Tomorrow 2023 SUSTAINABILITY REPORT 12 • Investor Day to be held December 4, 2024 in New York, NY • The focus will be to do a deep dive on the Company’s strategy • Further details to be communicated 20 24 AVI ENT INVESTOR DAY A P P E N D I X 15 Performance Additives 15% Pigments 13% TiO2 9% Dyestuffs 2% Polyethylene 10%Nylon 5% Polypropylene 4% Styrenic Block Copolymer 4% Other Raw Materials 38% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials RA W MATERI AL BA SKET SEGMENT DATA U.S. & Canada 41% EMEA 36% Asia 18% Latin America 5% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 19% Packaging 23%Industrial 16% Building and Construction 9% Telecommunications 4% Energy 5% Defense 7% END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) Transportation 10% Healthcare 7% 17 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2 0 2 3 R E V E N U E | $ 2 . 0 B I L L I O N US & Canada 34% EMEA 37% Asia 21% Latin America 8% END MARKET REGION 18 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 9% Building & Construction 10% Telecommunications 1% Energy 2% COLOR , AD DI TI VES & INKS 2 0 2 3 R E V E N U E | $ 1 . 1 B I L L I O N US & Canada 52% EMEA 35% Asia 13% 19 Packaging 5% Consumer 16% Healthcare 6%Industrial 16% Transportation 12% Telecommunications 9% Energy 10% Defense 18% Building & Construction 8% END MARKET REGION SPEC IA LTY ENGI NEER ED MATERI ALS Packaging 32% Consumer 26% Healthcare 9% Industrial 13% Building & Construction 6% Telecommunications 2% Energy 2% Defense 1% Asia (18% of sales) Transportation 9% 2 0 2 3 AV I E N T R E G I O N A L S A L E S Packaging 25% Consumer 13% Healthcare 5% Industrial 18% Building & Construction 9% Energy 5% Defense 8% EMEA (36% of sales)Transportation 13% Packaging 13% Consumer 22% Healthcare 10% Industrial 16% Building & Construction 12% Energy 6% Defense 8% US & Canada (41% of sales) Transportation 9% Packaging 59% Consumer 22% Healthcare 2% Industrial 8% Building & Construction 4% LATAM (5% of sales) Transportation 5% Telecommunications 4% Telecommunications 4% 20 B Y E N D M A R K E T Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

กฎหมายที(ใชบ้งัคบั สญัญานี7 อยูภ่ายใตบ้งัคบัและตีความตามกฎหมายไ ทย บรรดาการฟ้องรอ้งดาํเนินคดีทั7งหลายที(เกี(ยวกบัสญัญานี7 ใหฟ้้องรอ้งดาํเนินคดีในศาลทรพัยส์ินทางปัญญาและการคา้ระหวา่งประเทศก ลาง และคู่สญัญาแต่ละฝ่ายตกลงยนิยอมอยูภ่ายใตเ้ขตอาํนาจศาลดงักล่าวเท่านั7น 17. Buyer will comply with all Thai law and regulation respecting the export and/or re-export of the Product. 17.

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

Use of Non-GAAP Measures Page 3 PolyOne Commodity to Specialty Transformation Page 4 • Continue specialty transformation • Targeting $2.50 Adjusted EPS by 2015, nearly double 2013 EPS • Drive double digit operating income and adjusted EPS growth • 17 consecutive quarters of double- digit adjusted EPS growth • Shift to faster growing, high margin, less cyclical end markets • Key acquisitions propel current and future growth, as well as margin expansion • Established aggressive 2015 targets • Steve Newlin Appointed, Chairman, President and CEO • New leadership team appointed • Implementation of four pillar strategy • Focus on value based selling, investment in commercial resources and innovation to drive transformation • Volume driven, commodity producer • Heavily tied to cyclical end markets • Performance largely dependent on non- controlling joint ventures 2000-2005 2006 - 2009 2010 – 2013 2014 and beyond -150.00% -50.00% 50.00% 150.00% 250.00% 350.00% PolyOne S&P 500 Russell 2000 Dow Jones Chemical All time high of $38.38 March 7th, 2014 • 17 consecutive quarters of double digit EPS growth • 49% CAGR adjusted EPS expansion 2006-2013 • 2013 stock price increased 73% versus 30% growth in the S&P • More than seven fold increase in market cap: $0.5b $3.6b Strategy and Execution Drive Results Page 5 Appliance 4% Building & Construction 13% Wire & Cable 9% Electrical & Electronics 5% Consumer 10%Packaging 16% Industrial 12% HealthCare 11% Transportation 18% Misc. 2% United States 66% Europe 14% Canada 7% Asia 6% Latin America 7% PP&S 20% Specialty 53% Distribution 27% 0.12 0.27 0.21 0.13 0.68 0.82 1.00 1.31 2.50 $0.00 $0.25 $0.50 $0.75 $1.00 $1.25 $1.50 $1.75 $2.00 $2.25 $2.50 2006 2007 2008 2009 2010 2011 2012 2013 2015 Target A dj us te d Ea rn in gs P er S ha re 2013 Revenues: $3.8 Billion End Markets 2013 Revenues: $3.8 Billion EPS Page 6 PolyOne At A Glance Old PolyOne Transformation *Operating Income excludes corporate charges and special items 2% 34% 43% 62% 65- 75% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2013 2015 % o f O pe ra ti ng In co m e* JV's Performance Products & Solutions Distribution Specialty Specialty OI $5M $46M $87M $195M Target Mix Shift Highlights Specialty Transformation 2015 Target Page 7 2006 2013 2015 “Where we were” “Where we are” Target 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 12.2% 12 – 16% Global Specialty Engineered Materials 1.1% 9.3% 12 – 16% Designed Structures & Solutions -- 5.6% 8 – 10% Performance Products & Solutions 5.4% 7.2% 9 – 12% Distribution 2.6% 5.9% 6 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 62% 65 – 75% 3) ROIC* (after-tax) 5.0% 9.1% 15% 4) Adjusted EPS Growth N/A 31% Double Digit Expansion Proof of Performance & 2015 Goals *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period Page 8 Bridge To $2.50 Adjusted EPS By 2015 2015 EPS: $2.50 2013 EPS: $1.31 Mid single digit revenue CAGR Page 9 Mergers & Acquisitions Spartech accretion Incremental share buybacks Ongoing LSS Programs (50-100 bps/yr) Accelerated Innovation & Mix Improvement Innovation Drives Earnings Growth $20.3 $52.3 2006 2013 Research & Development Spending ($ millions) Specialty Platform Vitality Index Progression* *Percentage of Specialty Platform revenue from products introduced in last five years Page 10 14.3% 30.7% 2006 2013 Specialty Platform Gross Margin % 19.5% 43.0% 2006 2013 Healthcare Consumer Packaging and Additive Technology Transportation Page 11 Unique and Innovative Solutions that Help Customers Win https://www.dropbox.com/sh/dwe4t8aacvhb8ui/uD3p_bdglP/Presentation revise pics/GLS Beverage can closure XO 2.jpg https://www.dropbox.com/sh/dwe4t8aacvhb8ui/-YgkycKypw/Anti-Counterfeiting release & images/GN1979.JPG Net Debt / EBITDA* = 1.8x $48 $317 $600 $0 $100 $200 $300 $400 $500 $600 $700 $800 2015 2020 2023 Significant Debt Maturities As of December 31, 2013 ($ millions) Page 12 Coupon Rates: 7.500% 7.375% 5.250% Debt Maturities & Pension Funding – 12/31/13 *TTM 12/31/2013 ** includes US-qualified plans only 60% 100% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2008 2013 Pension Funding** As of December 31, 2013 Free Cash Flow and Strong Balance Sheet Fund Investment • Targets that expand our: • Specialty offerings • End market presence • Geographic footprint • Operating Margin • Synergy opportunities • Adjacent material solutions • Expanding our sales, marketing, and technical capabilities • Investing in operational and LSS initiatives (including synergy capture) • Manufacturing alignment Organic Growth Share Repurchases Dividends Acquisitions Page 13 $0.16 $0.20 $0.24 $0.32 $0.00 $0.10 $0.20 $0.30 $0.40 2011 2012 2013 2014 Annual Dividend • Repurchased ~5 million shares in 2013 • 15 million shares are available for repurchase under the current authorization The New PolyOne: A Specialty Growth Company 2015 Target: $2.50 Adjusted EPS Why Invest In PolyOne?

Global Compact • Highlights ESG Performance, including ratings, awards, and certifications • Features increased carbon emissions disclosures, including Climate Change Scenario Analysis and Scope 3 emissions data • Outlines Sustainable Supplier Program, designed to enable supplier evaluation & collaboration • Reflects Great Place To Work® culture focused on safety, employee engagement and advancing diversity, equity and inclusion 20 22 SUSTAI NA BILI TY REPORT 15 Avient Confidential 16 • Virtual presentation to be held September 20, 2023 • Leadership will be conducting an investor-focused presentation around our sustainable solutions portfolio • Deep dive into how we enable customers to achieve their sustainability goals SUSTAINABILITY DAY 16 …are Growing at Twice the Rate as Conventional Products Sustainably-Branded Products… STAKEHOLD ER INFLUENC E D RI VES D EMA ND Consumers Are demanding recyclability and eco- conscious products Governments Are mandating changes through legislation, taxes, and regional accords Brand Owners Have committed to ambitious goals to achieve sustainability metrics 17 A P P E N D I X 20 Performance Additives 16% Pigments 12% TiO2 10% Dyestuffs 2% Polyethylene 11% Nylon 6% Polypropylene 5% Styrenic Block Copolymer 5% Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 2022 pro forma results for the acquisition of Avient Protective Materials RA W MATERI AL BA SKET PEER COMPARISONS AVI ENT I S ASSET LI GHT Capex / Revenue 2023E (%) Avient Specialty Formulators Other Specialty / Chemical Companies Source: Peer data per Bloomberg as of July 21, 2023 Note: Avient reflects 2023 estimated revenue of $3,280 and estimated run-rate CAPEX of $110M. 22 3 2 3 3 4 4 3 3 4 5 5 7 8 8 A vi e n t K W R P P G F U L R P M A V Y F M C H U N C E H X L E C L A S H E M N S C L FR EE CA SH FLOW CONV ER SION Source: Peer data per Bloomberg as of July 21, 2023 Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA. Avient 2011 and 2018 valuations reflect trailing 12 months EBITDA at December 31 of the respective years. 24 EV / 2023E EBITDA Historic Multiple 6.5 8.3 10.3 14.4 13.6 13.6 12.4 9.0 20.2 18.2 11.5 10.6 9.7 9.6 8.7 8.3 A vi e n t (2 0 1 1 ) A vi e n t (2 0 1 8 ) A vi e n t (2 0 2 3 ) R P M P P G K W R A V Y F U L E C L H X L F M C A S H S C L C E H U N E M N Avient Specialty Formulators Other Specialty / Chemical Companies SEGMENT DATA U.S. & Canada 40% EMEA 37% Asia 18% Latin America 5% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 20% Packaging 24% Industrial 15% Building and Construction 10% Telecommunications 4% Energy 4% Defense 6% END MARKET REVENUE $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) Transportation 9% Healthcare 8% 26 (1) Total company sales and adjusted EBITDA of $3,653M and $592M, respectively, include intercompany sales eliminations and corporate costs 2 0 2 2 R E V E N U E | $ 2 . 4 B I L L I O N US & Canada 34% EMEA 38% Asia 20% Latin America 8% END MARKET REGION 27 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 8% Building & Construction 11% Telecommunications 1% Energy 2% COLOR , AD DI TI VES & INKS 2 0 2 2 P R O F O R M A R E V E N U E | $ 1 . 3 B I L L I O N US & Canada 52% EMEA 35% Asia 13% 28 Packaging 5% Consumer 19% Healthcare 8%Industrial 16% Transportation 10% Telecommunications 10% Energy 9% Defense 15% Building & Construction 8% END MARKET REGION SPEC IA LTY ENGI NEER ED MATERI ALS Packaging 32% Consumer 27% Healthcare 8% Industrial 14% Building & Construction 5% Telecommunications 3% Energy 1% Defense 1% Asia (18% of sales) Transportation 9% 2 0 2 2 P R O F O R M A AV I E N T R E G I O N A L S A L E S Packaging 27% Consumer 14% Healthcare 5% Industrial 17% Building & Construction 10% Energy 5% Defense 8% EMEA (37% of sales)Transportation 11% Packaging 13% Consumer 24% Healthcare 12% Industrial 15% Building & Construction 13% Energy 5% Defense 5% US & Canada (40% of sales) Transportation 7% Packaging 56% Consumer 23% Healthcare 4% Industrial 7% Building & Construction 4% Telecommunications 1% LATAM (5% of sales) Transportation 5% Telecommunications 3% Telecommunications 6% 29 B Y E N D M A R K E T Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

Modular construction: From projects to products (2019) • Avient internal data (November 2024) • Composites World, “Composite SIPs for more affordable, efficient and sustainable buildings,” October 21, 2024 • US Census Bureau, HUD, October 19, 2024 Next Page 14: Previous Page 15: Previous Page 27: Next Page 16: Previous Page 17: Next Page 17: Previous Page 18: Next Page 5: Previous Page 5: Next Page 18: Previous Page 19: Next Page 19: Previous Page 20: Next Page 20: Previous Page 21: Next Page 21: Previous Page 22: Next Page 22: Previous Page 23: Next Page 15: Previous Page 16: Next Page 23: Previous Page 24: Next Page 24: Previous Page 25: Next Page 25: Previous Page 26: Next Page 26: Next Page 27: Previous Page 28: Next Page 28:

All Rights Reserved 2025 17 ADJ. All Rights Reserved 2025 Specialty Engineered Materials E N D M A R K E T S R E G I O N S 20% 17% 14%13% 9% 9% 7% 7% 4% Defense Packaging Telecom Building & construction Transportation Industrial Consumer 54% 33% 13% US & Canada Asia Europe, Middle East and Africa Energy Healthcare Copyright © .

Beggs 2/14/2022 — — — — — 6,849 279,850 2/17/2023 — — — — — 8,150 333,009 2/22/2024 — — — — — 10,136 414,157 2/08/2021 27,200 — — 42.27 2/08/2031 — — 2/14/2022 — — 22,300 52.64 2/14/2032 — — 2/17/2023 8,750 8,750 8,750 42.93 2/17/2033 — — 2/22/2024 — 32,050 — 39.27 2/22/2034 — — J.R. Rathbun 2/14/2022 — — — — — 4,909 200,582 2/17/2023 — — — — — 7,204 294,355 2/22/2024 — — — — — 8,038 328,433 2/14/2018 10,400 — — 41.89 2/14/2028 — — 2/10/2020 19,200 — — 31.48 2/10/2030 — — 2/08/2021 20,150 — — 42.27 2/08/2031 — — 2/14/2022 — — 16,000 52.64 2/14/2032 — — 2/17/2023 7,750 7,750 7,750 42.93 2/17/2033 — — 2/22/2024 — 25,400 — 39.27 2/22/2034 — — A.M. Pederson 2/14/2022 — — — — — 4,803 196,251 2/17/2023 — — — — — 5,731 234,169 2/22/2024 — — — — — 6,553 267,756 2/11/2019 16,700 — — 31.54 2/11/2029 — — 2/10/2020 18,550 — — 31.48 2/10/2030 — — 2/08/2021 19,250 — — 42.27 2/08/2031 — — 2/14/2022 — — 15,650 52.64 2/14/2032 — — 2/17/2023 6,133 6,133 6,134 42.93 2/17/2033 — — 2/22/2024 — 20,600 — 39.27 2/22/2034 — — M.A.