OEMs and tier-one suppliers strive to reduce vehicle weight and incorporate more recycled materials into parts. PRODUCT BULLETIN 1.844.4AVIENT www.avient.com Copyright © 2024, Avient Corporation.

One of the critical components inside an EV is the charging connector, which comprises high-voltage parts that deliver power to the vehicle’s battery. APPLICATION BULLETIN MECHANICAL & FLAME-RETARDANT PERFORMANCE 1.844.4AVIENT www.avient.com Copyright © 2024, Avient Corporation.

THE CHALLENGE Any military organization’s top priority is protecting soldiers, and one necessary measure is critical battlefield defense from enemy fire and explosive events. SOLID FOUNDATIONS: SAFETY FIRST © 2024, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 https://www.erdc.usace.army.mil/Missions/Military-Engineering/Deployable-Force-Protection-Demo/ www.avient.com https://www.avient.com/content/ballistic-panel-quote-request-form

From technologies that brighten and whiten plastic products to ones that make them glow in the dark, there are solutions for enhancing just about any surface.  Check out our broad range of colorants and additives that can turn an everyday item into one that stands out to customers. ColorMatrix™ Lactra™ Four, One, Zero

Patterson, Chairman, President and Chief Executive Officer, Avient Corporation. In addition, a recording of the audio will be available for one week, beginning at 12:00 p.m. These costs are included in Corporate and eliminations.

Q: Someone just asked me to hold the door open for them to help them enter one of our buildings. No one wants unwarranted intrusions into personal space. Q: One of our customers has been loyal to us while we worked through a series of issues.

If the requirements are not met by one specific material, two or more thermoplastics can be combined to close the gap. The second (over-mold) material is either injected onto one side of the insert or sometimes completely surrounds the insert. Only in the last one decade applications have emerged which demand combining hard and soft thermoplastic materials.

SBC Rheology One major characteristic of SBCs is that they are shear dependent. OVERMOLDING One of the largest areas of growth for TPEs is overmolding. Relocate the gate so flow occurs in only one direction.

Avient corporation first quarter 2023 results AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) F E B R UA RY 2 0 2 4 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. PY $790 $719 $107 $114 Sales Adjusted EBITDA $0.42 $0.52 - 9% + 7% + 24% Sales Adjusted EBITDA Adjusted EPS 15 Q4 2023 SEGMENT PERFORMANCE 16 CAI $491 $459 Sales $70 $84 SEM $301 $260 Sales $55 $49 - 7% - 14%+20% - 11% Q4 EBITDA BRIDGE 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 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 TiO2 Dyestuffs Polyethylene 10%Nylon Polypropylene Styrenic Block Copolymer 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 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 23%Industrial Building and END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) 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 34% 37% 21% END MARKET REGION 24 34% 21% 15% Building & 1% Energy COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 BILLION 52% 35% 25 6%Industrial 12% 10% Defense Building & END MARKET REGION SPECIALTY ENGINEERED MATERIALS 32% 26% Building & 6% 2% Defense 1% (18% of sales) 2023 AVIENT REGIONAL SALES 25% Building & (36% of sales)Transportation 22% Building & 12% 6% US & Canada (41% of sales) 59% 22% Building & LATAM (5% of sales) 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. Three Months Ended Year Ended 2023 2022 2023 2022 Sales: Color, Additives and Inks $ 459.4 $ 490.8 $ 2,007.4 $ 2,355.0 Specialty Engineered Materials 259.8 300.8 1,138.2 1,044.4 Corporate (0.2) (1.2) (2.8) (2.5) Sales $ 719.0 $ 790.4 $ 3,142.8 $ 3,396.9 Operating income: Color, Additives and Inks $ 61.8 $ 44.3 $ 259.9 $ 301.0 Specialty Engineered Materials 29.4 35.2 142.5 140.1 Corporate (48.1) (79.1) (205.6) (197.8) Operating income $ 43.1 $ 0.4 $ 196.8 $ 243.3 Other expense, net: $ 4.3 $ (28.4) $ 5.8 $ (59.7) Depreciation & amortization: Color, Additives and Inks $ 22.2 $ 25.2 $ 98.3 $ 101.3 Specialty Engineered Materials 19.8 20.3 81.5 48.7 Corporate 2.2 3.1 9.0 12.5 Depreciation & amortization $ 44.2 $ 48.6 $ 188.8 $ 162.5 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 84.0 $ 69.5 $ 358.2 $ 402.3 Specialty Engineered Materials 49.2 55.5 224.0 188.8 Corporate (45.9) (76.0) (196.6) (185.3) Other expense, net $ 4.3 $ (28.4) $ 5.8 $ (59.7) EBITDA $ 91.6 $ 20.6 $ 391.4 $ 346.1 Special items in EBITDA 22.3 86.8 110.4 162.5 EBITDA - excluding special items $ 113.9 $ 107.4 $ 501.8 $ 508.6 APM pro forma adjustments - 8 months 2022* — — — 83.1 Pro forma EBITDA $ 113.9 $ 107.4 $ 501.8 $ 591.7 * Pro forma adjustment for January - August 2022 APM results (period before Avient ownership). 3 AVNT February IR Presentation.pdf Avient corporation�investor presentation DISCLAIMER Slide Number 3 Creating a world-class�sustainable organization Top-tier sustainability performance�and recognition Slide Number 6 Slide Number 7 Portfolio transformation Slide Number 9 END MARKET observations�(% of company sales) Regional observations�(% of company sales) Slide Number 12 Slide Number 13 Slide Number 14 Slide Number 15 Slide Number 16 Slide Number 17 Slide Number 18 Slide Number 19 Slide Number 20 Slide Number 21 Slide Number 22 2023 segment, end market and Geography Color, Additives & Inks Specialty Engineered Materials Slide Number 26 AVNT Q4 2023 Earnings Presentation.pdf AVNT Q4 2023 Earnings Presentation_For Website_with Non-GAAP.pdf IR Deck - AVNT-2023.12.31 (2.12.24 9PM Milestone February 12 0905 pm).pdf Attachment

Add weight while simplifying your processing steps – Simplify your manufacturing process by injection molding a weighted, finished part in one step rather than adding a metal weight. Utilize existing molds – Replace current ABS solutions with low shrinkage PP grades and utilize your existing molds GT5200- 0013 GT7300- 0006 GT7300- 0010 PVD 2.0 GT5200- 0016 PVD 3.0 GT5200- 5025 GT7300- 5020 NATURAL FD GT5200- 5009 BLACK SO FD GT5200- 5044 GT5200- 5016 X2 GT7300- 5007 X1 WHITE FD GT7300- 5003 GT5200- 5003 GRV PP- 030-IO 5068 X2 5009 X5 BLACK SO 5021 NATURAL FD 5003 BLACK FD  BLACK FD  GRV PP- 030-IO CI GT5200- 5089 NATURAL C GT5200- 5082 BLACK Specific Gravity* 2 2 2 3 1.25 1.6 1.85 2 2 2.2 2.5 2.5 3 1.20 1.90 2.2 2.50 2.50 3.0 1.20 1.20 Electroplating No Yes Possibly Possibly Possibly Yes Yes Yes No Possibly Possibly Yes No Yes Yes Yes Not tested Not tested Not tested Yes Yes Physical Vapor Deposition (PVD)/Vacuum Metallization Possibly Possibly Yes Yes Possibly Possibly Possibly Possibly Yes Yes Yes Yes Yes Possibly Possibly Possibly Yes Yes Yes Possibly Possibly Base Resin PP ABS ABS PP PP ABS PP PP PP ABS ABS PP PP PP PP ABS ABS PP PP rPP (ocean bound) rPP (PCR) Base Color White Black Grey Black Natural Natural Black Beige Black White Black Black Black Black Black Natural/ Beige Black Black Black Natural Black FDA Compliant* Yes Yes Yes Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No Filled Mineral Mineral Mineral Metallic Mineral Mineral Mineral Mineral Metallic Mineral Metallic Metallic Metallic Mineral Mineral Mineral Metallic Metallic Metallic Mineral Mineral Region Produced North  America North  North  North America Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Copyright © 2024, Avient Corporation.