ECCOH™ LOW SMOKE AND FUME, NON-HALOGEN FORMULATIONS PRODUCT SELECTION GUIDE ECCOH™ Low Smoke and Fume, Non-Halogen Solutions *Dry Silane abbreviated as DS **Cross-linked using Sioplas method 5549 UV Teck-90 5700 5801 UV 5865 5982 UV 6010 6151 6638 UV XLS 8001 APPLICATION Type Jacket Jacket Jacket Jacket Jacket Jacket Insulation Tight buffer, Micro-tube Jacket Jacket CABLE Type LV, Data LV LV, Data, OFC LV, Data, OFC Data, OFC LV, OFC LV OFC Data, OFC LV MARKETS Type B & C, Industrial Industrial, Teck-90 B & C, Industrial Industrial, Oil & Gas, Shipboard B & C B & C, Industrial Automotive B & C, Industrial B & C, Industrial B & C, Shipboard Cross-linked No No No Yes No No Yes No No Yes Cross-linking Method* N/A N/A N/A DS/E-beam N/A N/A DS/E-beam N/A N/A Sioplas GENERAL PROPERTIES Properties as Thermoset x x x SG g/cm³ 1.59 1.54 1.60 1.50 1.57 1.52 1.38 1.46 1.48 1.48 MFI, 150°C/21.6 Kg g/10 min 2.8 5 6 3.5 4 5.9 4.4 6 3 6 Hardness Shore D 44 54 50 46 50 54 56 53 53 49 Tensile psi 1740 2610 1595 1800 1740 2320 3336 2466 2030 2030 Elongation % 160% 200% 136% 133% 180% 150% 145% 160% 175% 160% LOI % 45% 36% 51% 39% 45% 41% 30% 33% 42% 33% Low temp brittleness (LTB) °C -26.5°C -49°C -10.5°C -30°C -39°C -38.5°C -41°C -35.5°C -26 -40.5 Max.

Chemical Resistance to Alkali: Stable to alkalis LIQUID CRYSTAL POLYMER (LCP) LIQUID CRYSTAL POLYMER (HM) BARE FIBER PERFORMANCE * Equilibrium moisture regain @ 55% RH ** Creep @ 40%-58% ultimate tensile strength *** Shrinkage in dry air @ 177 C for 30 minutes  ABOUT FIBER-LINE® LOCATIONS Headquarters, R&D, Manufacturing FIBER-LINE® LLC 3050 Campus Drive Hatfield, PA 19440 +1 215.997.9181 fiber@fiber-line.com Manufacturing Operations FIBER-LINE® LLC 280 Performance Drive SE Hickory, NC 28602 +1 828.326.8700 fiber@fiber-line.com EMEA & Asia Pacific Operations FIBER-LINE® INTERNATIONAL B.V.

VersaflexTM PF Versaflex PF VOC VERSAFLEX PF VOC 39 LDPE / 13 Versaflex PF VERSAFLEX PF 39 LDPE / 13 Versaflex PF N /2 5 N /2 5 F = 25 ° C 7 I = 25 ° C 20 MD6741 / MD6700 VERSAFLEX PFTM +86 021 60284888 www.avient.com VERSAFLEX™ PF 1 CF6751 PP 2 2420K LDPE Versaflex™ PF MD6727 Versaflex™ PF MD6741 Versaflex™ CF 6751 Versaflex™ PF MD6649 Versaflex™ PF 9512 Versaflex™ CF 8888N-A Versaflex™ PF MD6666 Versaflex™ PF MD6748 Versaflex™ PF MD6700 Versaflex™ CF 9000 PP PVC Tg (°C) -26 -43 -30 -26 -5 1 -6 0 5 / (Shore A) 50 49 35 37 38 35 37 31 30 19 MFI (190°C, 2.16kg) (g/10min) / / / 15 5 15 20 3 5 27 MFI (230°C, 2.16kg) 8 20 8 / / / / / / / 1 LDPE 2420k2/LDPE 2420k/Versaflex™ =4.5/4.5/1 ; =50um (N/25mm) 25°C 20 1.3 1.8 7.9 2.5 2.2 2.7 3.3 3.0 3.7 4.3 75°C 7 5.7 2.9 7.2 3.1 4.0 4.3 4.3 5.5 5.6 / PMMA (N/25mm) 25°C 20 1.8 2.0 7.2 2.6 2.8 3.0 3.6 3.3 3.9 4.9 75°C 7 5.5 4.7 7.1 3.5 / 4.7 6.5 5.8 6.9 /

KEY CHARACTERISTICS • Customized density offering a wide range of specific gravities (1.2–11 gm/cm3) • Based on recycled resin from PIR and PCR sources • Broad modulus range, from very flexible to very rigid grades • Corrosion resistance that withstands oxidization for long-term use and benefit • Chemical resistance can be adapted depending on base resin as required • Provides visual surface effects, aesthetics, and cool touch • Design flexibility and processing ease MARKETS AND APPLICATIONS Applications in packaging and consumer goods in which a more sustainable solution is preferred: • Cosmetic caps and closures • Perfume caps • Spirit bottle caps • Luxury boxes • Handles and knobs SUSTAINABILITY BENEFITS • Formulated with recycled resin from post-industrial recycled (PIR) and/or post-consumer recycled (PCR) sources including ocean bound plastic waste • Reduces waste and supports the circular economy • Reduces carbon footprint compared to fossil feedstock alternatives • Simplifies manufacturing and lowers costs versus metal PRODUCT BULLETIN CHARACTERISTICS UNITS Gravi-Tech REC-CI GT5200-5089 PT Natural Gravi-Tech REC GT5200-5075 Black X2 Gravi-Tech REC GT5200-5078 Gravi-Tech REC GT5200-5079 Gravi-Tech REC GT5200-5060 Gravi-Tech REC GT5200-5057 Base Resin Ocean Bound rPP rPP rPP rPP rPP rPP Recycled Content/Filler g/cm >98% PIR+PCR 60% PIR/Mineral >95% PIR/Mineral >95% PIR+PCR/Mineral 30% PIR/Mineral 30% PIR/Mineral Density (ISO 1183) g/ccm 1.2 1.2 1.2 1.2 1.9 2.0 CHARACTERISTICS UNITS Gravi-Tech REC GT7300-5034 X2 FD Natural Gravi-Tech REC GT7300-5036 Gravi-Tech REC GT7300-5025 Gravi-Tech REC GT6000-5032 GT6000-5031 Base Resin ABS rABS/ABS rABS rPA6 rPA6 Recycled Content/Filler g/cm 50% PIR/Mineral 65% PIR/Mineral 10% PIR/Mineral 20% PIR/Mineral 20% PIR/Mineral Density (ISO 1183) g/ccm 1.5 1.5 2.2 2.7 2.8 AVAILABLE GRADES Copyright © 2024, Avient Corporation.

And, up to 30% less cross-flow shrink minimizes warp distortion. This literature shall NOT operate as permission, recommendation, or inducement to practice any patented invention without permission of the patent owner. 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0 100 200 300 400 500 600 700 800 900 1000 Te ns ile S tr en gt h Re te nt io n Hours Submerged Tensile Strength Retention Standard Nylon 6/6, 50% Long Glass Fiber Moisture Resistant Nylon 6/6, 50% Long Glass Fiber Specialty Nylon 6/12, 50% Long Glass Fiber

Without limiting the generality of this statement, Avient products shall not be used in any medical device application intended for: (1) exposure to human tissue or body fluids for 30 days or greater; (2) “plastic” (cosmetic or reconstructive) surgery use; (3) reproductive implants or any birth control device; or (4) any critical component in a permanently (greater than 30 days) implanted medical device that supports or sustains human life.

Without limiting the generality of this statement, Avient products shall not be used in any medical device application intended for: (1) exposure to human tissue or body fluids for 30 days or greater; (2) “plastic” (cosmetic or reconstructive) surgery use; (3) reproductive implants or any birth control device; or (4) any critical component in a permanently (greater than 30 days) implanted medical device that supports or sustains human life.

This innovation drives performance and is reflective of consistent, strategic investments in technology and people Clariant Color business acquired July 1, 2020 10 30 40 14 22 35 19 18 41 Current Additional share needed to reach 2025 target BRAND OWNERS COMMITTED TO INCREASING USE OF RECYCLED MATERIALS 14 Brand Owner 1 Brand Owner 3 Brand Owner 2 Brand Owner 7 Brand Owner 4 Brand Owner 10 Brand Owner 6 Brand Owner 11 Brand Owner 5 Brand Owner 8 Brand Owner 9 Brand Owner 12 Brand Owner 13 Percent recycled plastic used: (examples and not exhaustive) (1) Latest year reported. Develop and implement solutions to end plastic waste while supporting AEPW $1.5B investment in key initiatives. 2030 SUSTAINABILITY TARGETS 27 Sustainalytics 2021 ESG Risk Ranking RANK (1st = lowest risk) PERCENTILE (1st – lowest risk) Chemicals INDUSTRY 75/449 17th Specialty Chemicals SUBINDUSTRY 21/124 17th AVIENT ESG RATINGS ISS November 2021 ESG Scores SCORE (1 = Best, 10 = Worst) Environmental 2 Social 1 Governance 4 28 2021 AVIENT INVESTOR DAY 29 • Investor Day to be held December 9, 2021 in New York, NY • The company will be doing a deep dive into its key long- term growth drivers with a particular focus on sustainable solutions Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Healthcare 8–10% Composites / 5G 10% Growth in Asia / LATAM 5% Other (GDP growth) 2–3% Avient 6.5% • Senior leadership team will also provide further details on the Clariant Color integration, as well as capital allocation priorities PEER COMPARISONS 30 As a specialty formulator, we don’t require significant capital investment, as compared to the base resin raw material suppliers we purchase from. APPENDIX Performance Additives Pigments TiO2 Dyestuffs 4%Polyethylene Nylon Polypropylene Other Raw Materials 29% Styrenic Block Copolymer ~1/3 hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 36 • Significant raw material price inflation and tight inventory continued in Q3 2021 o Average cost of hydrocarbon based materials was up 65% year-over-year and 10% sequentially o Average cost of non-hydrocarbon based materials was up 20% year-over-year and 3% sequentially • Additionally, we continued to experience other supply chain challenges during Q3 related to raw material spot purchases, freight constraints and productivity loss as a result of these shortages Annual Purchases RAW MATERIAL AND SUPPLY CHAIN UPDATE Based on 2020 pro forma purchases, excludes Distribution business SEGMENT DATA U.S. & Canada 51% Latin America 2021 YTD SEGMENT, END MARKET AND GEOGRAPHY 38 GEOGRAPHY REVENUESEGMENT FINANCIALS 23% 19% Building and END MARKET REVENUE (1) Total company sales and EBITDA of $3,617M and $455M, respectively, include intercompany sales eliminations and corporate costs All charts reflect YTD financials through September 30 $1,820M $321M $691M $127M $1,206M $72M Sales Adjusted EBITDA Distribution Specialty Engineered Materials Color Additives and Inks $455M$3,617M 34% 21% 7% Building & 9% 2% Telecommunications C O L O R , A D D I T I V E S & I N K S 2021 YTD REVENUE | $1 .8 BILL ION 31% 42% 21% Latin America END MARKET REGION 39 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 28% 11% Building & 7% 2021 YTD REVENUE | $691 MILLION END MARKET 55% 20% REGION 40 DI S TR IBU T I ON 26% 22% 20% Building and 81% Latin America END MARKET REGION K E Y S U P P L I ER S 2021 YTD REVENUE | $1 .2 BILL ION 41 TOTA L C O M PA N Y R E G I O N A L S A L E S BY END MARKET 30% 27% Building & 2% Energy (16% of sales) 31% 17% Building & (25% of sales) 42 19% 17% Building & US & Canada (51% of sales) 13% 42% 33% 3% Building & LATAM (8% of sales) Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) September 30, 2021 Reconciliation to Condensed Consolidated Statements of Income GAAP Special Adjusted Operating income $ 78.7 $ 20.0 $ 98.7 Income from continuing operations before income taxes $ 61.1 $ 19.9 $ 81.0 Income tax expense - GAAP (8.5) — (8.5) Income tax impact of special items — (4.6) (4.6) Tax adjustments — (3.6) (3.6) Net income attributable to noncontrolling interests 0.3 — 0.3 Net income from continuing operations attributable to Avient shareholders $ 52.9 $ 11.7 $ 64.6 Net income / EPS $ 0.57 $ 0.13 $ 0.70 Weighted-average diluted shares 92.2 92.2 92.2 September 30, 2020 Reconciliation to Condensed Consolidated Statements of Income GAAP Special Adjusted Operating income $ 33.5 $ 40.4 $ 73.9 Income from continuing operations before income taxes $ 5.3 $ 50.0 $ 55.3 Income tax expense - GAAP (2.7) — (2.7) Income tax impact of special items — (12.7) (12.7) Tax adjustments — 3.0 3.0 Net income attributable to noncontrolling interests (0.9) — (0.9) Net income from continuing operations attributable to Avient shareholders $ 1.7 $ 40.3 $ 42.0 Net income / EPS $ 0.02 $ 0.44 $ 0.46 Weighted-average diluted shares 91.9 91.9 91.9 Three Months Ended Three Months Nine Months Year Ended December 31, Reconciliation to Pro Forma Adjusted EBITDA 2021 2020 June 30, 2021 September 30, 2021 2020 2019 2018 Net income from continuing operations – GAAP $ 52.6 $ 2.6 $ 69.4 $ 201.7 $ 133.8 $ 75.7 $ 87.4 Income tax expense 8.5 2.7 20.4 51.8 5.2 33.7 14.4 Interest expense 19.0 29.7 19.5 57.8 74.6 59.5 62.8 Debt extinguishment cost — — — — — — 1.1 Depreciation and amortization from continuing operations 36.8 36.5 33.8 107.7 115.0 78.1 72.6 EBITDA $ 116.9 71.5 $ 143.1 $ 419.0 $ 328.6 $ 247.0 $ 238.3 Special items, before tax 19.9 50.0 14.2 36.5 66.2 61.7 59.5 Interest expense included in special items — (9.6) — — (10.1) — — Depreciation and amortization included in special items (0.9) (1.3) 1.4 (0.1) (3.2) — (3.0) Adjusted EBITDA $ 135.9 $ 110.6 $ 158.7 $ 455.4 $ 381.6 $ 308.7 $ 294.8 Clariant MB pro forma adjustments(1) — — — — 75.1 133.2 141.5 Pro forma adjusted EBITDA $ 135.9 $ 110.6 $ 158.7 $ 455.4 $ 456.7 $ 441.9 $ 436.3 (1) Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects to the financing for the acquisition Reconciliation of EBITDA by Segment Nine Months December 31, 2021 2020 2021 2020 2019 2018 Sales: Color, Additives and Inks $ 586.6 $ 493.8 $ 1,820.3 $ 1,502.9 $ 1,003.8 $ 1,046.5 Specialty Engineered Materials 233.6 174.1 690.7 708.8 745.7 645.8 Distribution 438.8 276.9 1,205.9 1,110.3 1,192.2 1,265.4 Corporate and eliminations (39.2) (20.3) (99.6) (79.9) (79.0) (76.7) Sales $ 1,219.8 $ 924.5 $ 3,617.3 $ 3,242.1 $ 2,862.7 $ 2,881.0 Operating income: Color, Additives and Inks $ 66.8 $ 50.5 $ 241.9 $ 180.8 $ 147.4 $ 158.5 Specialty Engineered Materials 31.7 24.7 103.2 94.4 83.7 72.3 Distribution 23.8 17.5 71.5 69.5 75.4 71.5 Corporate and eliminations (43.6) (59.2) (109.4) (155.4) (149.7) (123.7) Operating income $ 78.7 $ 33.5 $ 307.2 $ 189.3 $ 156.8 $ 178.6 Items below OI in Corporate: Other income, net $ 1.4 $ 1.5 $ 4.1 $ 24.3 $ 12.1 $ (12.9) Depreciation & amortization: Color, Additives and Inks $ 26.6 $ 26.3 $ 79.2 $ 75.1 $ 42.7 $ 44.3 Specialty Engineered Materials 7.9 7.5 23.8 30.0 29.5 23.2 Distribution 0.2 0.2 0.6 0.7 0.5 0.7 Corporate and eliminations 2.1 2.5 4.1 9.2 5.4 4.4 Depreciation & Amortization $ 36.8 $ 36.5 $ 107.7 $ 115.0 $ 78.1 $ 72.6 EBITDA: Color, Additives and Inks $ 93.4 $ 76.8 $ 321.1 $ 255.9 $ 190.1 $ 202.8 Specialty Engineered Materials 39.6 32.2 127.0 124.4 113.2 95.5 Distribution 24.0 17.7 72.1 70.2 75.9 72.2 Corporate and eliminations (41.5) (56.7) (105.3) (146.2) (144.3) (119.3) EBITDA $ 116.9 $ 71.5 $ 419.0 $ 328.6 $ 247.0 $ 238.3 EBITDA as a % of Sales: Color, Additives and Inks 15.9 % 15.6 % 17.6 % 17.0 % 18.9 % 19.4 % Specialty Engineered Materials 17.0 % 18.5 % 18.4 % 17.6 % 15.2 % 14.8 % Distribution 5.5 % 6.4 % 6.0 % 6.3 % 6.4 % 5.7 % Reconciliation of Pro Forma EBITDA - Color, Additives and Inks Year Ended December 31, 2020 2019 2018 Sales: Color, Additives and Inks $ 1,502.9 $ 1,003.8 $ 1,046.5 Clariant MB pro forma adjustments(1) 540.4 1,118.6 1,209.8 Pro forma sales $ 2,043.3 $ 2,122.4 $ 2,256.3 Operating income: Color, Additives and Inks $ 180.8 $ 147.4 $ 158.5 Clariant MB pro forma adjustments(1) 45.0 72.9 80.3 Pro forma operating income $ 225.8 $ 220.3 $ 238.8 Depreciation & amortization: Color, Additives and Inks $ 75.1 $ 42.7 $ 44.3 Clariant MB pro forma adjustments(1) 30.1 60.3 61.2 Pro forma depreciation & amortization $ 105.2 $ 103.0 $ 105.5 EBITDA Color, Additives and Inks $ 255.9 $ 190.1 $ 202.8 Clariant MB pro forma adjustments(1) 75.1 133.2 141.5 Pro forma EBITDA $ 331.0 $ 323.3 $ 344.3 Pro forma EBITDA as a % of Sales 16.2 % 15.2 % 15.3 % December 31, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Adjusted Clariant MB Pro Forma Adjustments(1) Pro Forma Adjusted Sales $ 3,242.1 $ — $ 3,242.1 $ 540.4 $ 3,782.5 Operating income $ 189.3 $ 73.7 $ 263.0 $ 45.0 $ 308.0 Interest expense, net (74.6) 10.1 (64.5) (18.1) (82.6) Other income, net 24.3 (17.6) 6.7 — 6.7 Income taxes (5.2) (41.4) (46.6) (6.2) (52.8) Net income attributable to noncontrolling interests (1.8) — (1.8) — (1.8) Net income from continuing operations attributable to Avient shareholders $ 132.0 $ 24.8 $ 156.8 $ 20.7 $ 177.5 Weighted average diluted shares 90.6 Impact to diluted shares from January 2020 equity offering 1.5 Pro forma weighted average diluted shares 92.1 Pro forma adjusted EPS $ 1.93 December 31, 2019 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Adjusted Clariant MB Pro Forma Adjustments(1) Pro Forma Adjusted Sales $ 2,862.7 $ — $ 2,862.7 $ 1,118.6 $ 3,981.3 Operating income $ 156.8 $ 71.7 $ 228.5 $ 72.9 $ 301.4 Interest expense, net (59.5) — (59.5) (33.4) (92.9) Other income, net 12.1 (10.0) 2.1 — 2.1 Income taxes (33.7) (5.9) (39.6) (9.1) (48.7) Net income attributable to noncontrolling interests (0.2) — (0.2) — (0.2) Net income from continuing operations attributable to Avient shareholders $ 75.5 $ 55.8 $ 131.3 $ 30.4 $ 161.7 Weighted average diluted shares 77.7 Impact to diluted shares from January 2020 equity offering 15.3 Pro forma weighted average diluted shares 93.0 Pro forma adjusted EPS $ 1.74 AVNT November Investor Meetings.pdf AVNT Q3 2021 Earnings Presentation.pdf Final 10.27 606pm Q3 21 IR Deck Version v1.pdf

We are Avient. 6 BETTER TOGETHER: POLYONE AND CLARIANT COLOR Key Financial Data 2021 Sales $4.8 billion 2021 EBITDA $581 million 87% of EBITDA from specialty applications 2021 PE RF O RM AN CE $80 $85 $0.52 $0.58 Q4 2021 PERFORMANCE 8 Sales Adjusted Operating Income $997 $1,202 + 21% Adjusted EPS + 6% + 12% (in millions) (in millions) $308 $429 $1.93 $3.05 FULL YEAR 2021 PERFORMANCE 9 Sales Adjusted Operating Income $3,783 $4,819 + 27% Adjusted EPS + 39% + 58% (in millions) (in millions) (1) (1) (1) FULL YEAR 2021 SEGMENT PERFORMANCE 10 $2,043 $2,402 SEM Distribution $226 $303 + 18% + 34% $1,110 $1,631 $70 $93 + 47% + 33% $709 $919 $94 $132 + 30% + 40% Full Year 2020 (Pro forma) $3,783 $308 Sustainable Solutions 147 19% 60 Healthcare 143 28% 30 Composites 58 43% 29 Growth in Asia / LATAM 107 21% 26 Other 543 30% 58 Sub-total $4,781 26% $511 Wage Inflation and Overtime (39) Other Supply Chain Costs (15) COVID Response Applications (22) (12) Synergies 44 FX, Incentives, Other Employee Costs 60 (60) Full Year 2021 $4,819 27% $429 FULL YEAR 2021 SALES AND OPERATING INCOME 11 Sales Growth Rate Operating Income$ millions EBITDA 12 Full Year 2020 (Pro forma) $ 457 Demand 135 $ millions CAI: Price / Mix 158 Inflation (120) SEM: Price / Mix 84 Inflation (65) Distribution: Price / Mix 318 Inflation (304) Net Price Benefit 71 Wage Inflation and Overtime (39) Other Supply Chain Costs (15) COVID Response Applications (12) Synergies 44 Incentives, FX, Other Employee Costs (60) Full Year 2021 $ 581 • Demand impact driven by growth in key focus areas: sustainable solutions, healthcare, composites and growth in Asia / LATAM • Price increases more than offset raw material and supply chain impacts FULL YEAR 2021 EBITDA BRIDGE SPECIALTY EBITDA MARGIN EXPANSION 13 (1) 2018-2020 financial information is pro forma to include a full year of Clariant Color business 15.3% 15.2% 16.2% 17.0% 2018 2019 2020 2021 14.8% 15.2% 17.6% 17.8% 2018 2019 2020 2021 SEM • Record margins in 2021 despite unprecedented supply chain challenges • Continued portfolio transformation to high-growth end markets and sustainable solutions • Clariant Color synergy realization • Investments in composites and outdoor high performance applications drove growth and mix improvements • Acquisition of Clariant Color business significantly expanded presence in healthcare, packaging and consumer end markets • Strength of portfolio – double-digit annual EBITDA growth since acquisition • $54 million of synergies realized in 2021 • Acquisition completed on July 1, 2020 for $1.45 billion. Whether an additional line at an existing manufacturing plant, or a new facility in a growing region, we ramp-up quickly and cost-efficiently. 30 Capex / Revenue 2022E (%) AVIENT IS ASSET LIGHT Avient Specialty Other 4 7 7 7 ( xc l. APPENDIX Performance Additives 15% Pigments TiO2 Dyestuffs 3%Polyethylene Nylon 6% Polypropylene Other Raw Materials 30% Styrenic Block Copolymer ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 35 • Significant raw material price inflation and tight inventory continued in Q4 2021 o For the full year, the average cost of hydrocarbon based materials was up 50% in 2021 o For the full year, the average cost of non- hydrocarbon based materials was up 12% in 2021 • Additionally, we continued to experience other supply chain challenges during Q4 related to raw material spot purchases, freight constraints and productivity loss as a result of these shortages Annual Purchases RAW MATERIAL AND SUPPLY CHAIN UPDATE Based on 2021 purchases, excludes Distribution business SEGMENT DATA U.S. & Canada 50% Latin America 9% 2021 SEGMENT, END MARKET AND GEOGRAPHY 37 GEOGRAPHY REVENUESEGMENT FINANCIALS 23% 19% Building and END MARKET REVENUE (1) Total company sales and adjusted EBITDA of $4,819M and $581M, respectively, include intercompany sales eliminations and corporate costs $2,402M $409M $919M $164M $1,631M $94M Sales EBITDA Distribution Specialty Engineered Materials Color Additives and Inks $581M$4,819M 15% 34% 21% Building & 9% 1% Telecommunications C O L O R , A D D I T I V E S & I N K S 2021 REVENUE | $2 .4 BILL ION 32% 40% 21% Latin America END MARKET REGION 38 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 27% Building & 2021 REVENUE | $919 MILLION END MARKET 55% 20% REGION 39 DI S TR IBU T I ON 26% 23% 20% Building and 80% 3% Latin America END MARKET REGION K E Y S U P P L I ER S 2021 REVENUE | $1 .6 B ILL ION 40 TOTA L C O M PA N Y R E G I O N A L S A L E S BY END MARKET 30% 26%Healthcare 14% Building & 2% Energy (16% of sales) 32% Building & (25% of sales) 41 19% Building & US & Canada (50% of sales) 38% 33% Building & LATAM (9% of sales)

© 2019, All Right Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 TRANSPORTATION LIGHTING SUPPLIER H E A T S I N K F O R H I G H P O W E R L E D • A material to replace aluminum • High thermal conductivity - 20 W/mK • Electrically conductive • Increase production rate by 50%, as three secondary operations were eliminated • Reduced the weight of each part by 30% • Collaborated with the customer to participate in the SPE Automotive Innovation Awards Therma-Tech™ TT6600-5001 EC Grey KEY REQUIREMENTS WHY AVIENT?