CUSTOMIZED SOLUTIONS Our custom capabilities include: • Drilling • Routing • Machining USES AND APPLICATIONS Composite ballistic panels from Avient are suitable for indoor and outdoor use in commercial, governmental, industrial, and residential applications: • Military structures • Infrastructure facilities and equipment • Banks • Check cashing stations • Pawn shops • Loan and bail/bond offices • Courtrooms • Police stations • Detention facilities • Bonded warehousing • Security buildings • Equipment shielding locations • Safe rooms • Storm shelters • Judges’ chambers • Finishing • Custom colors • Unique panel sizes UL 752 & NIJ STANDARDS FOR BALLISTIC RESISTANT PROTECTIVE MATERIALS UL Rating NIJ Level Ammunition Velocity No. When covering a sensitive substructure such as glass, shim the panels 3/8 inch (9.5 mm) to prevent impact shock damage. 8. Property GlasArmor Panel ThermoBallistic Panel Test Method Glass Content 55 wt% 73 wt% Density 0.066 lb/in3 1.83 g/cm3 0.062 lb/in3 1.72 g/cm3 ASTM D-792 Flex Mod 2.1–2.7 msi 14.5 - 18.6 GPa 2.5 msi 17.2 GPa ASTM D-790 Flex Strength 65 ksi 448 MPa 14 ksi 96.5 MPa ASTM D-790 Barcol Hardness 50–60 n/a ASTM D-2583 Fire Rating 1 hour1 n/a ASTM E-119-09c Flame Spread Rating 452 n/a ASTM E-84-08a Smoke Developed Rating 1652 n/a ASTM E-84-08a MATERIAL DATA (TYPICAL VALUES) 1 UL Level 3 panel was fire tested as part of a wall system with steel studs and drywall face sheet 2 NFPA & IBC Class B rating achieved www.avient.com Copyright © 2023, Avient Corporation.

Concentrated Acid - 30% H2SO4, 24 HRS, 23°C Nylon samples were almost completely dissolved after one day, while the Edgetek PKE bars are still visible. Edgetek™ PKE Glass-Filled Portfolio Polyketone formulations with 20, 30, or 40% short glass fiber reinforcement available in natural or black Complēt™ PKE Portfolio Long fiber reinforced polyketone formulations with 30, 40, or 50% fiber loading and available in natural or black, and available in non-PFAS* formulations to achieve a UL 94 V-0 flame rating at 1.5 mm ET8900-0001 20GF NAT LGF30-PKE 1088 NAT ET8900-0002 30GF NAT LGF30-PKE 2020 BLK ET8900-0003 40GF NAT LGF40-PKE 1088 NAT ET8900-0004 20GF BLK LGF40-PKE 2020 BLK ET8900-0005 30GF BLK LGF50-PKE 1088 NAT ET8900-0006 40GF BLK LGF50-PKE 2020 BLK FEATURED PRODUCTS * Non-PFAS flame-retardant (FR) grades are manufactured without intentionally added PFAS-based raw materials.

You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. When showing constant dollar figures on GAAP and non-GAAP financial measures, the foreign exchange impact is calculated by using current foreign exchange rates and applying them to the prior period results. 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.

You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. When showing constant dollar figures on GAAP and non-GAAP financial measures, the foreign exchange impact is calculated by using current foreign exchange rates and applying them to the prior period results. EBITDA $130 million +6% (+7% ex FX)Net Sales $815 million +8% (+8.5% ex FX) Net Sales $815 million +8% (+8.5% ex FX) Q 3 2 0 2 4 R E S U L T S TOTAL COMPANY ( Q 3 2 0 2 4 P E R F O R M A N C E V S Q 3 2 0 2 3 ) $754 $815 Q3 23 Q3 24 $123 $130 Q3 23 Q3 24 Sales Adjusted EBITDA (in millions) $0.57 $0.65 Q3 23 Q3 24 (in millions) Adjusted EBITDA Adjusted EPS 5 + 8% (+8.5% excluding FX) + 6% (+7% excluding FX) + 14% (+16% excluding FX) Sales 6 Q3 2 024 RESULTS – ORGA NI C REVENUE GROW TH BY REGI ON VS PY 6 US & Canada Latin America EMEA Asia +9% +5% +11% +27% Avient ex.

F U T U R E G ROW TH I N E XC E S S O F G D P I S D R I V E N B Y: Our company is positioned to sustainably grow at a rate that exceeds GDP. As a result, revenue from sustainable solutions has increased at an organic compounded annual growth rate of 9% from 2016-2019. PEER COMPARISONS 16 2 3 2 3 3 3 6 3 4 4 4 4 5 5 6 6 7 8 9 23 A vi e n t A vi e n t (E xc l.

Randburg, South Africa 8. Greenville, North Carolina 8. federal rate of 21%.

Melle, Germany 8. Vonore, Tennessee 8. ITEM 8.

8:00 a.m. Effective Tax Rate(1) Effective Tax Rate(1)

8:00 a.m. Effect of exchange rate changes on cash Effective Tax Rate

Avient will conduct a conference call at 8:00 a.m. Effective Tax Rate(1) Effective Tax Rate(1)