& Canada 64% Specialty Engineered Materials Color Additives and Inks 23% 10% 5% 4% Building & Energy Telecom Geography Segment Industry 4 CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 1. 6% annualized long term sales growth leveraging sustainable solutions, composites, healthcare and emerging regions 2. ASHISH KHANDPUR PRESIDENT & CEO 7 8 PORTFOLIO TRANSFORMATION 8 46% 66% 87% 100% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2020 2023 % o f A dj us te d EB IT D A Commodity JVs Distribution Performance Products & Solutions Specialty Businesses Adjusted EBITDA from Specialty Applications SUSTAINABILITY AS A GROWTH DRIVER 9 LONG-TERM REVENUE GROWTH DRIVERS Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other 60%+ Key Growth Drivers Total Company Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Composites 8–10% Healthcare 8–10% Asia / LATAM 5% Other 0–2% Avient 6% END MARKET OBSERVATIONS (% OF COMPANY SALES) ENERGY DEFENSE TELECOMMUNICATIONS HEALTHCARE 10 TRANSPORTATION INDUSTRIAL BUILDING & CONSTRUCTION 9% CONSUMER PACKAGING 23% 11 REGIONAL OBSERVATIONS (% OF COMPANY SALES) 11 Q 4 2023 RE S U LT S Q4 2023 PERFORMANCE VS. 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

Attachment 6    Color, Additives and Inks    Color, Additives and Inks

Global Color, Additives and Inks 66%

PRODUCT BULLETIN Stan-Tone™ Colorants Epoxy Paste Colorants (EPX) Stan-Tone™ EPX epoxy paste colorants are select organic and inorganic pigments dispersed in a Bisphenol A undiluted epoxy resin with an epoxide equivalent of 185. The high pigment loading of these colorants allows for excellent economics. KEY CHARACTERISTICS • Intended for use in a variety of thermoset epoxy systems • Based on heat stability, lightfastness, weatherability and toxicity • Use level is 1%–2% for thick casting and 5%–10% for a thin coating APPLICATIONS Stan-Tone EPX dispersions are suitable for use in a variety of applications, including: • Protective coatings • Adhesives • Epoxy flooring • Electrical potting • Composites • Laminates Stan-Tone Code Pigment Type Approx. % Pigment Specific Gravity Color Index Lightfastness WHITE 10EPX03 Titanium Dioxide, Rutile 57 1.95 PW-6 I/O YELLOW 12EPX01 Diarylide AAOT GS 25 1.22 PY-14 I 12EPX03 Diarylide HR RS 20 1.2 PY-83 I/O (Mass) 13EPX02 Isoindolinone RS 30 1.3 PY-110 I/O 13EPX03 Benzimidazolone GS 40 1.27 PY-151 I/O (Mass) 81EPX01 Iron Oxide 40 1.62 PY-42 I/O ORANGE 15EPX03 Benzimidazolone 30 1.26 PO-36 I/O RED 23EPX04 Quinacridone BS 25 1.21 PV-19 I/O 23EPX06 Specialty Naphthol BS 30 1.21 PR-170 I/O (Mass) C 25EPX01 Red 2B, Ca Salt Bs 24 1.27 PR-48:2 I/O (Mass) 28EPX01 Red 2B, Ba Salt YS 23 1.29 PR-48:1 I/O (Mass) 82EPX01 Iron Oxide, Light BS 40 1.67 PR-101 I/O 82EPX02 Iron Oxide, Dark BVS 40 1.68 PR-101 I/O 82EPX04 Iron Oxide, Light VYS 40 1.67 PR-101 I/O BLUE 40EXP03 Phthalocyanine GS 25 1.25 PB-15:3 I/O 40EXP05 Phthalocyanine RS 25 1.25 PB-15:3 I/O 42EXP02 Ultramarine 50 1.54 PB-29 I/O 49EXP01 Cobalt 50 1.83 PB-28 I/O GREEN 50EPX02 Phthalocyanine BS 18 1.34 PG-7 I/O 50EPX03 Phthalocyanine YS 25 1.42 PG-7 I/O 59EPX01 Chromium Oxide 40 1.64 PG-17 I/O VIOLET/MAGENTA 24EPX03 Quinacridone Violet 15 1.2 PV-19 I/O 24EPX04 Ultramarine Violet 50 1.66 PV-15 I/O 24EPX05 Quinacridone Magenta 20 1.21 PR-122 I/O 24EPX06 Benzimidazolone 20 1.2 PV-32 I/O 24EPX07 Carbazole Violet 15 1.2 PV-23 I/O BROWN/TAN 83EPX01 Iron Oxide, Light 39 1.64 PBr-6 I/O 83EPX02 Iron Oxide, Dark 40 1.66 PBr-6 I/O BLACK 90EPX01 Furnace - High Jet 14 1.23 PBk-7 I/O 90EPX04 Furnace - Medium 20 1.25 PBk-7 I/O 90EPX05 Iron Oxide 50 1.77 PBk-11 I/O EPX 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.

Unless otherwise noted herein, all comparisons to prior year results are pro forma for the Clariant Masterbatch acquisition. Pro Forma The Company acquired the Clariant Masterbatch business (“CMB”) on July 1, 2020 (the “Acquisition Date”). For the same reasons, the Company is unable to address the probable significance of the unavailable information. 6 Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations Avient Corporation +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G.

Avient Colorants Indonesia Gatot Subroto Km. 4, Jl. Müller, CEO SQS 66 60 _2  / J un e 20 19  / V er si on 2 .0 Swiss Association for Quality and Management Systems (SQS) Bernstrasse 103, 3052 Zollikofen, Switzerland A.

Avient Colorants Singapore Pte Ltd 8 Third Chin Bee Road Jurong Industrial Estate Singapore 618684 Singapore Scope Category I Production of customer specific Masterbatches for Food packaging materials on the dedicated extrusion lines Normative base ISO 22000:2018 Food Safety Management Systems Requirements for any organization in the food chain Reg. no. 46390 Validity 25. 02. 2021 – 24. 02. 2024 Issue 30. 06. 2021 Swiss Madesqs.ch F. Müller, CEO SQS 66 60 _2  / J un e 20 19  / V er si on 2 .0 Swiss Association for Quality and Management Systems (SQS) Bernstrasse 103, 3052 Zollikofen, Switzerland A.

Another color-related challenge is the multitude of different color streams of recycled PET, which can limit the uses for recycled colored PET. In many instances, these colored bottles may offer an outlet to utilize some of the less transparent rPET feedstock as the colorant can mask the original recyclate color. utm_source=eBook&utm_id=rPET Button 92: Button 93: Button 3: Button 83: Button 5: Button 6: Button 66: Button 67: Button 68: Button 69: Button 70: Button 71: Button 72: Button 73: Button 74: Button 75: Button 76: Button 77: Button 78: Button 79: Button 84: Button 85: Button 86: Button 87: Button 88: Button 89: Button 90: Button 91: Button 80:

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. Level 5 7.62mm rifle lead core full metal copper jacket, military ball 2750 ft/sec 838 m/sec 1 Level 6 Level II 9mm full metal jacket with lead core 1400 ft/sec 427 m/sec 5 Level 7 5.56mm rifle full metal copper jacket with lead core 3080 ft/sec 939 m/sec 5 Level 8 Level III 7.62mm rifle lead core full metal copper jacket, military ball 2750 ft/sec 838 m/sec 5 Width Length Thickness Color LEVEL 1 0.256 in/6.5 mm Natural 36 in/91 cm 120 in/305 cm 48 in/122 cm 108 in/274 cm 48 in/122 cm 120 in/305 cm LEVEL 2 0.384 in/9.8 mm Natural 36 in/91 cm 120 in/305 cm 48 in/122 cm 108 in/274 cm 48 in/122 cm 120 in/305 cm LEVEL 3 0.500 in/12.7 mm Natural 36 in/91 cm 120 in/305 cm Natural 48 in/122 cm 96 in/244 cm Natural, Grey, White, Tan 48 in/122 cm 108 in/274 cm Natural, Grey 48 in/122 cm 120 in/305 cm Natural, Grey, White ThermoBallistic Panels 24 in/61 cm 96 in/244 cm 0.44 in/11.2 mm White, Grey, Blue 24 in/61 cm 144 in/366 cm 48 in/122 cm 144 in/366 cm BALLISTIC PANEL SELECTION GUIDE Customized panel sizes and colors available. Position these batten strips to cover the seam and attach to both panels using appropriate wallboard screws (see diagram). 6.

Pro forma for the acquisition of Clariant Masterbatch, the company noted sales for October and November increased 5.4% over the same months in the prior year.  Board of Directors approved an increase of 5 million shares available for repurchases, bringing the company's total authorization to approximately 6 million shares. to Work® employee engagement survey, inclusive of our newly added associates from Clariant.