LUXURY CLOSURE MANUFACTURER L U X U R Y S P I R I T C A P • Specific gravity of 2.2 • White color for metallic surface treatment • Touch and feel of ceramic • FDA compliant material • Formulated a custom, ABS-based material suitable for electroplating to achieve desired weight, look, and feel of metal • Combined material, electroplating, and application experience and expertise to support the process from concept to production Gravi-Tech™ Density Modified Formulation KEY REQUIREMENTS WHY AVIENT?

DENTAL TOOL OEM 3 D D E N T A L S C A N N E R • Achieve accurate color match to non-polysulfone (PSU) components • Must be compatible with hospital disinfectants and survive repeated steam sterilization • Developed precise color match to other resins used in adjacent parts, maintaining accurate brand identification • Provided expertise in pigments and critical color manufacturing for high performance resins • Customized a high-performance solution able to withstand steam sterilization in an autoclave Transcend™ Precolored Gray and Precolored White PSU KEY REQUIREMENTS WHY AVIENT?

SURGICAL INSTRUMENT OEM I N T R A O R A L S C A N N E R • Chemical and impact resistance • Customized pre-colored solutions • Color and dimension stable after sterilization • Minimum color deviation and easy to process • Technical support and color expertise • Offered bright white and customized pre- colored formulations in PPSU and PSU for intraoral scanner head and body parts • Provided a solution that can withstand up to 1,000 cycles autoclave, with good chemical and excellent impact resistance • Met customer request for color stability after processing and biocompatible compliance Transcend™ Premier Healthcare Colorants KEY REQUIREMENTS WHY AVIENT?

FOOD PROCESSING BELT MANUFACTURER C O N V E Y O R B E L T • Electrical resistivity of E+8 Ω • FDA and EU 10/2011 food compliant • Designed to meet ATEX standard • Light color (white) • Provided a permanent statically dissipative solution • Met stringent compliance requirements • Reduced manufacturing steps from two-step process to single-step process Stat-Tech™ Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?

TOOL MANUFACTURER T O O L H A N D L E S • Electrical resistivity of 100 MΩ, ESD • Hardness of 90 Shore A or higher • Suitable for OM onto PP • White color • Provided a solution with permanent antistatic properties and excellent tear resistance, enhancing durability • Met required hardness range, giving handle excellent grip • Simplified manufacturing process with excellent adherence directly onto PP substrate Stat-Tech™ Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?

GUIDANCE $800 $754 Guidance Actual $128 $123 Guidance Actual Sales Adjusted EBITDA (in millions) $0.56 $0.57 Guidance Actual Adjusted EPS (in millions) 9 • Demand impacted by destocking and cautious customer sentiment • Positive net price benefit: o CAI - Pricing flat and raw material deflation o SEM - Pricing flat with unfavorable mix related to healthcare, more than offset with raw material deflation • Cost reductions driven by Clariant synergies and reduced administrative costs Q3 EBITDA BRIDGE ($ millions) CAI: Price / Mix -) Deflation 22) SEM: Price / Mix (6) Deflation 13) Net Price Benefit 29) Cost Reductions 13) Wage Inflation (8) FX 1) Q3 2023 Actual $ 123) Adjusted EBITDA Q3 2022 Pro Forma $ 137) Demand (49) 10 2023 G U I DAN CE Q4 2023 GUIDANCE VS.

PY (TOTAL COMPANY) $790 $719 2022 2023 $107 $114 2022 2023 Sales Adjusted EBITDA (in millions) $0.42 $0.52 2022 2023 Adjusted EPS (in millions) - 9% + 7% + 24% Sales Adjusted EBITDA Adjusted EPS 15 Q4 2023 SEGMENT PERFORMANCE 16 CAI $491 $459 Sales (in millions) $70 $84 EBITDA SEM $301 $260 Sales $55 $49 EBITDA - 7% - 14%+20% - 11% 2022 2023 (in millions) Q4 EBITDA BRIDGE (TOTAL COMPANY) 17 $ millions CAI: Price / Mix 11 Deflation 14 SEM: Price / Mix 4 Deflation 9 Net Price Benefit 38 Cost Reductions 13 Wage Inflation (8) Other (2) Q4 2023 $114 Adjusted EBITDA Q4 2022 $ 107 Demand (34) • Demand was down, but less than in previous quarters, due to slowing pace of destocking • Positive net price benefit: o CAI – Pricing flat with favorable mix from uptick in packaging and consumer end markets and raw material deflation o SEM - Pricing flat with favorable mix from Composites and raw material deflation • Cost reductions primarily driven by reduced administrative costs and cost synergies 2024 G U I DAN CE 2024 GUIDANCE Full Year 2024 Guidance Adjusted EBITDA $505 to $535 million Adjusted EPS $2.40 to $2.65 Interest Expense $105 to $110 million Adjusted Effective Tax Rate 23% to 25% Capital Expenditures ~$140 million 19 Q1 Adjusted EPS of $0.68 AP P E N DI X 21 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 RAW MATERIAL BASKET 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% 23 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2023 REVENUE | $2 .0 BILLION US & Canada 34% EMEA 37% Asia 21% Latin America 8% END MARKET REGION 24 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 9% Building & Construction 10% Telecommunications 1% Energy 2% COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 BILLION US & Canada 52% EMEA 35% Asia 13% 25 Packaging 5% Consumer 16% Healthcare 6%Industrial 16% Transportation 12% Telecommunications 9% Energy 10% Defense 18% Building & Construction 8% END MARKET REGION SPECIALTY ENGINEERED MATERIALS Packaging 32% Consumer 26% Healthcare 9% Industrial 13% Building & Construction 6% Telecommunications 2% Energy 2% Defense 1% Asia (18% of sales) Transportation 9% 2023 AVIENT REGIONAL SALES 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% 26 BY END MARKET 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.

PY (TOTAL COMPANY) $790 $719 2022 2023 $107 $114 2022 2023 Sales Adjusted EBITDA (in millions) $0.42 $0.52 2022 2023 Adjusted EPS (in millions) - 9% + 7% + 24% Sales Adjusted EBITDA Adjusted EPS 13 Q4 2023 SEGMENT PERFORMANCE 14 CAI $491 $459 Sales (in millions) $70 $84 EBITDA SEM $301 $260 Sales $55 $49 EBITDA - 7% - 14%+20% - 11% 2022 2023 (in millions) Q4 EBITDA BRIDGE (TOTAL COMPANY) 15 $ millions CAI: Price / Mix 11 Deflation 14 SEM: Price / Mix 4 Deflation 9 Net Price Benefit 38 Cost Reductions 13 Wage Inflation (8) Other (2) Q4 2023 $114 Adjusted EBITDA Q4 2022 $ 107 Demand (34) • Demand was down, but less than in previous quarters, due to slowing pace of destocking • Positive net price benefit: o CAI – Pricing flat with favorable mix from uptick in packaging and consumer end markets and raw material deflation o SEM - Pricing flat with favorable mix from Composites and raw material deflation • Cost reductions primarily driven by reduced administrative costs and cost synergies 2 0 2 4 G U I DA N C E 2024 GUIDANCE Full Year 2024 Guidance Adjusted EBITDA $505 to $535 million Adjusted EPS $2.40 to $2.65 Interest Expense $105 to $110 million Adjusted Effective Tax Rate 23% to 25% Capital Expenditures ~$140 million 17 Q1 Adjusted EPS of $0.68 A P P E N D I X 20 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 RAW MATERIAL BASKET 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% 22 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2023 REVENUE | $2 .0 BILLION US & Canada 34% EMEA 37% Asia 21% Latin America 8% END MARKET REGION 23 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 9% Building & Construction 10% Telecommunications 1% Energy 2% COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 BILLION US & Canada 52% EMEA 35% Asia 13% 24 Packaging 5% Consumer 16% Healthcare 6%Industrial 16% Transportation 12% Telecommunications 9% Energy 10% Defense 18% Building & Construction 8% END MARKET REGION SPECIALTY ENGINEERED MATERIALS Packaging 32% Consumer 26% Healthcare 9% Industrial 13% Building & Construction 6% Telecommunications 2% Energy 2% Defense 1% Asia (18% of sales) Transportation 9% 2023 AVIENT REGIONAL SALES 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% 25 BY END MARKET 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.

% Pigment Specific Gravity Color Index Lightfastness WHITE 10PEP03 Titanium Dioxide, Rutile 60 2.06 PW-6 I/O YELLOW 12PEP01 Diarylide AAOT GS 20 1.24 PY-14 I 12PEP03 Diarylide HR RS 25 1.23 PY-83 I/O (Mass) 13PEP02 Isoindolinone RS 25 1.31 PY-110 I/O 13PEP03 Benzimidazolone GS 25 1.25 PY-151 I/O (Mass) 81PEP01 Iron Oxide 60 2.07 PY-42 I/O ORANGE 15PEP03 Benzimidazolone RS 25 1.27 PO-36 I/O RED 23PEP04 Quinacridone BS 25 1.24 PV-19 I/O 23PEP06 Specialty Naphthol BS 25 1.23 PR-170 I/O (Mass) C 25PEP01 Red 2B, Ca Salt BS 17 1.26 PR-48:2 I/O (Mass) 28PEP01 Red 2B, Ba Salt YS 25 1.32 PR48:1 I/O (Mass) 82PEP01 Iron Oxide, Light YS 27 1.5 PR-101 I/O 82PEP02 Iron Oxide, Light BS 60 2.2 PR-101 I/O 82PEP04 Iron Oxide, Light VYS 60 2.2 PR-101 I/O 82PEP05 Iron Oxide, Dark VBS 60 2.21 PR-101 I/O BLUE 40PEP01 Phthalocyanine GS 25 1.27 PB-15:3 I/O 40PEP05 Phthalocyanine RS 25 1.27 PB-15 I/O 42PEP02 Ultramarine 35 1.44 PB-29 I/O 49PEP01 Cobalt 31 1.54 PB-28 I/O GREEN 50PEP01 Phthalocyanine BS 16 1.28 PG-7 I/O 50PEP03 Phthalocyanine YS 16 1.28 PG-7 I/O 59PEP02 Chromium Oxide 70 2.6 PG-17 I/O VIOLET/MAGENTA 24PEP03 Quinacridone Violet 20 1.24 PV-19 I/O 24PEP04 Ultramarine Violet 50 1.69 PV-15 I/O 24PEP05 Quinacridone Magenta 20 1.24 PR-122 I/O 24PEP06 Benzimidazolone 20 1.23 PV-32 I/O 24PEP07 Carbazole Violet 13 1.22 PV-23 I/O BROWN/TAN 83PEP01 Iron Oxide, Light 34 1.6 PBr-6 I/O 83PEP02 Iron Oxide, Dark 29 1.51 PBr-6 I/O BLACK 90PEP01 Furnace - High Jet 24 1.3 PBk-7 I/O 90PEP04 Furnace - Medium 17 1.27 PBk-7 I/O 90PEP05 Iron Oxide 33 1.58 PBk-11 I/O POLYESTER URETHANE PASTE COLORANTS (PEP) Stan-Tone Code Pigment Type Approx. % Pigment Specific Gravity Color Index Lightfastness WHITE 10ET03 Titanium Dioxide, Rutile 56 1.74 PW-6 I/O YELLOW 12ET01 Diarylide AAOT GS 40 1.15 PY-14 I 12ET03 Diarylide HR RS 20 1.07 PY-83 I/O (Mass) 13ET02 Isoindolinone RS 20 1.11 PY-110 I/O 13ET03 Benzimidazolone GS 20 1.08 PY-151 I/O (Mass) 81ET01 Iron Oxide 60 1.84 PY-42 I/O ORANGE 15ET03 Benzimidazolone RS 25 1.11 PO-36 I/O RED 20ET01 Red Lake C YS 30 1.16 PR-53 I 22ET01 Lithol Rubine BS 30 1.17 PR-57:1 I 23ET04 Quinacridone BS 15 1.05 PV-19 I/O 23ET06 Specialty Naphthol BS 30 1.09 PR-170 I/O (Mass) C 25ET01 Red 2B, Ca Salt BS 29 1.15 PR-48:2 I/O (Mass) 28ET01 Red 2B, Ba Salt YS 30 1.18 PR-48:1 I/O (Mass) 82ET01 Iron Oxide, Light BS 60 1.94 PR-101 I/O 82ET02 Iron Oxide, Dark VBS 60 1.95 PR-101 I/O 82ET04 Iron Oxide, Light VYS 60 1.94 PR-101 I/O BLUE 40ET01 Phthalocyanine GS 25 1.11 PB-15:3 I/O 40ET05 Phthalocyanine RS 20 1.09 PB-15 I/O 42ET02 Ultramarine 55 1.46 PB-29 I/O 49ET01 Cobalt 65 2.02 PB-28 I/O GREEN 50ET01 Phthalocyanine BS 30 1.2 PG-7 I/O 50ET03 Phthalocyanine YS 25 1.16 PG-7 I/O 59ET01 Chromium Oxide 65 2.12 PG-17 I/O VIOLET/MAGENTA 24ET03 Quinacridone Violet 20 1.08 PV-19 I/O 24ET04 Ultramarine Violet 60 1.66 PV-15 I/O 24ET05 Quinacridone Magenta 20 1.08 PR-122 I/O 24ET06 Benzimidazolone 25 1.08 PV-32 I/O 24ET07 Carbazole Violet 13 1.05 PV-23 I/O BROWN/TAN 83ET01 Iron Oxide, Light 64 2.02 PBr-6 I/O 83ET02 Iron Oxide, Dark 60 1.9 PBr-6 I/O BLACK 90ET04 Furnace - Medium 22 1.12 PBk-7 I/O 90ET05 Iron Oxide 60 1.9 PBk-11 I/O POLYETHER URETHANE PASTE COLORANTS (ET) PEP/ET RS = Red Shade YS = Yellow Shade VYS = Very Yellow Shade BS = Blue Shade VBS = Very Blue Shade GS = Green Shade HR = Heat-Resistant LIGHTFASTNESS I = Indoor Only I/O = Indoor or Outdoor Mass = Outdoor Masstone Application Only C = Some Caution Advised www.avient.com Copyright © 2020, Avient Corporation.

Trilliant HC - OCD Microwells IVD Testing - Application Snapshot ORTHO CLINICAL DIAGNOSTICS M I C R O W E L L S F O R I V D D E V I C E • PS-based material • Strict TiO2 content/filling to secure accurate performance • Material to be suitable and complaint with the IVDD/IVDR standards • Surface chemical performance essential for the application • Worked in close collaboration with customer and internal teams to fully understand and overcome current material challenges • Identified anomalies in existing formulation using material science expertise and customized an alternative formulation • Enabled customer to improve processing efficiency, reduce scrap rate and respond to the increased market demand Trilliant™ HC7410-5001 X4 thermoplastics in white KEY REQUIREMENTS WHY AVIENT?