In any such event as described above, all outstanding claims of Seller shall become due and payable immediately with respect to the Products delivered to Buyer and not repossessed by Seller. 10. Buyer must notify Seller of such acquisition within 10 (ten) days thereof. Within 10 (ten) days after receipt of such notice, Seller may exercise its right to terminate the order confirmation by giving Buyer written notice. 20.

In any such event as described above, all outstanding claims of Seller shall become due and payable immediately with respect to the Products delivered to Buyer and not repossessed by Seller. 10. Buyer must notify Seller of such acquisition within 10 (ten) days thereof. Within 10 (ten) days after receipt of such notice, Seller may exercise its right to terminate the order confirmation by giving Buyer written notice. 19.

A COMPLETE PRODUCT PORTFOLIO A full range of Colorant Chromatics technologies includes: • Color and/or additive concentrates • Specialty compounds including conductive, carbon fiber, CNT, filled, glass, carbon, minerals • Additive concentrates including specialty compounds such as UV, acid scavengers, lubricants/mold release, and foaming agents • � Pigment dispersions • �� Inks and additives for processors of high- performance plastics and fluoropolymers HIGH- TEMPERATURE SOLUTIONS/ INJECTION MOLDING Minimum order quantities for color concentrates and compounds for high-performance polymers are as low as 10 lbs. (5kg), enabling you to manage inventory better and order only what you need. 10 standard colors • All colors are heavy metal-free • Special color matches can be done upon request using Pantone® or RAL color standards • Customized pigment loadings can be provided to address specialized coloration needs • Functional additives can be provided to address tailored properties Let-down ratios and specific processing suggestions are provided in the product data sheet available from your Avient representative. Inks for: FEP, ETFE, PFA, ECTFE, PVdF, Polyimide, PTFE, PEEK • 10 standard colors • All colors are heavy metal free • Other colors available upon request HIGH-TEMPERATURE PRINTING & STRIPING INKS These are aqueous inks used for printing, striping, or top coating on high-temperature resins.

In any such event as described above, all outstanding claims of Seller shall become due and payable immediately with respect to the Products delivered to Buyer and not repossessed by Seller. 10. Buyer must notify Seller of such acquisition within ten (10) calendar days thereof. Within ten (10) calendar days after receipt of such notice, Seller may exercise its right to terminate the order confirmation by giving Buyer written notice. 19.

In any such event as described above, all outstanding claims of Seller shall become due and payable immediately with respect to the Products delivered to Buyer and not repossessed by Seller. 10. Buyer must notify Seller of such acquisition within 10 (ten) days thereof. Within 10 (ten) days after receipt of such notice, Seller may exercise its right to terminate the order confirmation by giving Buyer written notice. 19.

In any such event as described above, all outstanding claims of Seller shall become due and payable immediately with respect to the Products delivered to Buyer and not repossessed by Seller. 10. Buyer must notify Seller of such change of control within 10 (ten) days thereof. Within 10 (ten) days after receipt of such notice, Seller may exercise its right to terminate the order confirmation by giving Buyer written notice. 19.

In any such event as described above, all outstanding claims of Seller shall become due and payable immediately with respect to the Products delivered to Buyer and not repossessed by Seller. 10. Buyer must notify Seller of such acquisition within 10 (ten) days thereof. Within 10 (ten) days after receipt of such notice, Seller may exercise its right to terminate the order confirmation by giving Buyer written notice. 19.

KANCELARIA NOTARIALNA W WARSZAWIE, NOTARIUSZ TOMASZ CYGAN, REPERTORIUM A NR 15613/2015, ZMIANA §2, §4 UMOWY SPÓŁKI. 10 22.03.2021 R. TAK Rubryka 8 ­ Kapitał spółki 1.Wysokość kapitału zakładowego 29 000 000,00 ZŁ Informacja o wniesieniu aportu 1.Określenie wartości udziałów objętych za aport 1 1 015 000,00 ZŁ Rubryka 9 ­ Nie dotyczy Rubryka 10 ­ Nie dotyczy Dział 2 Rubryka 1 ­ Organ uprawniony do reprezentacji podmiotu 1.Nazwa organu uprawnionego do reprezentowania podmiotu ZARZĄD 2.Sposób reprezentacji podmiotu SPÓŁKA JEST REPREZENTOWANA PRZEZ DWÓCH CZŁONKÓW ZARZĄDU DZIAŁAJĄCYCH ŁĄCZNIE LUB PRZEZ JEDNEGO CZŁONKA ZARZĄDU DZIAŁAJĄCEGO ŁĄCZNIE Z PROKURENTEM Dane osób wchodzących w skład organu 1 1.Nazwisko / Nazwa lub Firma BĄKAŁA 2.Imiona ANNA EWA 3.Numer PESEL/REGON 69102301765 4.Numer KRS **** 5.Funkcja w organie reprezentującym CZŁONEK ZARZĄDU 6.Czy osoba wchodząca w skład zarządu została zawieszona w czynnościach? Dział 3 Rubryka 1 ­ Przedmiot działalności 1.Przedmiot przeważającej działalności przedsiębiorcy 1 20, 12, Z, PRODUKCJA BARWNIKÓW I PIGMENTÓW 2.Przedmiot pozostałej działalności przedsiębiorcy 1 46, 12, Z, DZIAŁALNOŚĆ AGENTÓW ZAJMUJĄCYCH SIĘ SPRZEDAŻĄ PALIW, RUD, METALI I CHEMIKALIÓW PRZEMYSŁOWYCH 2 20, 16, Z, PRODUKCJA TWORZYW SZTUCZNYCH W FORMACH PODSTAWOWYCH 3 46, 75, Z, SPRZEDAŻ HURTOWA WYROBÓW CHEMICZNYCH 4 69, 20, Z, DZIAŁALNOŚĆ RACHUNKOWO-KSIĘGOWA; DORADZTWO PODATKOWE 5 23, 69, Z, PRODUKCJA POZOSTAŁYCH WYROBÓW Z BETONU, GIPSU I CEMENTU 6 63, 11, Z, PRZETWARZANIE DANYCH; ZARZĄDZANIE STRONAMI INTERNETOWYMI (HOSTING) I PODOBNA DZIAŁALNOŚĆ 7 68, 20, Z, WYNAJEM I ZARZĄDZANIE NIERUCHOMOŚCIAMI WŁASNYMI LUB DZIERŻAWIONYMI Rubryka 2 ­ Wzmianki o złożonych dokumentach Rodzaj dokumentu Nr kolejny w polu Data złożenia Za okres od do 1.Wzmianka o złożeniu rocznego sprawozdania finansowego 1 07.06.2002 2001 2 02.07.2003 01.01.2002 - 31.12.2002 3 30.09.2004 OD 01.01.2003 DO 31.12.2003 4 28.06.2005 OD 01.01.2004 DO 31.12.2004 5 19.07.2006 01.01.2005-31.12.2005 6 18.06.2007 01.01.2006 R. - 31.12.2006 R. 7 27.06.2008 01.01.2007 R. - 31.12.2007 R. 8 02.07.2009 01.01.2008 R. - 31.12.2008 R. 9 30.07.2010 01.01.2009 - 31.12.2009 10 06.07.2011 2010 ROK 11 23.08.2012 01.01.2011-31.12.2011 12 25.07.2013 01.01.2012R.-31.12.2012R.

Q1 2023 (TOTAL COMPANY) $846 $829 $134 $143 17.3% (in millions) $0.63 $0.76 Adjusted EPS (in millions) + 7% + 21% Sales Adjusted EBITDA Adjusted EPS 6 - 2% 15.8% +150 bps Q1 2024 SEGMENT PERFORMANCE (COLORS, ADDITIVES & INKS) $537 $515 $91 $97 18.8% (in millions) (in millions) + 7% 7 - 4% 17.0% +180 bps • Year over year demand continues to improve for the segment but slowly due to continued weakness in Europe • Raw material deflation & cost reduction actions primary drivers of adjusted EBITDA growth and margin expansion of +180 bps vs Q1 2023 Q1 2024 SEGMENT PERFORMANCE (SPECIALTY ENGINEERED MATERIALS) $310 $314 $64 $73 23.2% (in millions) (in millions) + 14% 8 + 1% 20.8% +240 bps • Sales growth in defense end market offset by weaker demand in telecommunications end market • Raw material deflation and favorable mix impact from defense sales primary drivers of adjusted EBITDA growth and margin expansion of +240 bps vs Q1 2023 Q1 EBITDA BRIDGE (TOTAL COMPANY) 9 $ millions CAI: Price / Mix (1) Deflation 16 SEM: Price / Mix 4 Deflation 7 Net Price Benefit 26 Wage/Other Inflation (9) FX (2) Q1 2024 $143 Adjusted EBITDA Q1 2023 $ 134 Demand (6) • Positive net price benefit: o Favorable raw material deflation in both segments • Wage and other inflation more than offset cost reductions/synergies 2024 G U I DAN CE FY 2024 GUIDANCE Original Revised Adjusted EBITDA $505 to $535 million $510 to $535 million Adjusted EPS $2.40 to $2.65 $2.50 to $2.65 Interest Expense $105 to $110 million $105 million Adjusted Effective Tax Rate 23% to 25% 23% to 25% Capital Expenditures ~$140 million ~$140 million 11 Q2 2024: Adjusted EPS of $0.71 CE O “ TO P O F MI N D” FO CU S ARE AS AREAS OF FOCUS 13 +7% Drive Profitable Organic Top-Line Growth with Margin Expansion Amplify Innovation Build Leadership & Talent Pipeline AP P E N DI X 16 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 41% 36% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 19% 23%Industrial Building and 7% END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) 7% 18 (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 19 34% 21% 15% Building & 1% Energy COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 BILLION 52% 35% 20 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) 21 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. A reconciliation of these measures to their most directly comparable GAAP measures is provided in the tables below. 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 49.4 $ 0.54 $ 20.8 $ 0.23 Special items, after-tax 5.5 0.06 22.3 0.24 Amortization expense, after-tax 14.9 0.16 15.1 0.16 Adjusted net income / EPS $ 69.8 $ 0.76 $ 58.2 $ 0.63 Three Months Ended Reconciliation to EBITDA and Adjusted EBITDA: 2024 2023 Net income from continuing operations – GAAP $ 49.7 $ 21.3 Income tax expense 16.8 7.7 Interest expense, net 26.6 28.8 Depreciation and amortization 44.3 50.5 EBITDA from continuing operations 137.4 108.3 Special items, before tax 6.2 27.3 Depreciation and amortization included in special items (0.5) (1.8) Adjusted EBITDA $ 143.1 $ 133.8 Adjusted EBITDA as a percent of sales 17.3 % 15.8 % 1 2024 2023 Sales: Color, Additives and Inks $ 515.3 $ 537.0 Specialty Engineered Materials 314.4 309.7 Corporate (0.7) (1.0) Sales $ 829.0 $ 845.7 Operating income: Color, Additives and Inks $ 74.8 $ 65.6 Specialty Engineered Materials 53.4 43.1 Corporate (34.2) (51.6) Operating income $ 94.0 $ 57.1 Depreciation & amortization: Color, Additives and Inks $ 21.9 $ 25.8 Specialty Engineered Materials 19.6 21.2 Corporate 2.8 3.5 Depreciation & amortization $ 44.3 $ 50.5 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 96.7 $ 91.4 Specialty Engineered Materials 73.0 64.3 Corporate (31.4) (48.1) Other (expense) income, net (0.9) 0.7 EBITDA from continuing operations 137.4 108.3 Special items, before tax 6.2 27.3 Depreciation and amortization included in special items (0.5) (1.8) Adjusted EBITDA $ 143.1 $ 133.8 Adjusted EBITDA as a percent of sales: Color, Additives and Inks 18.8 % 17.0 % Specialty Engineered Materials 23.2 % 20.8 % 2 Year Ended December 31, 2023 Sales: Color, Additives and Inks $ 2,007.4 Specialty Engineered Materials 1,138.2 Corporate (2.8) Sales $ 3,142.8 Operating income: Color, Additives and Inks $ 259.9 Specialty Engineered Materials 142.5 Corporate (205.6) Operating income $ 196.8 Depreciation & amortization: Color, Additives and Inks $ 98.3 Specialty Engineered Materials 81.5 Corporate 9.0 Depreciation & amortization $ 188.8 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 358.2 Specialty Engineered Materials 224.0 Corporate (196.6) Other income, net 5.8 EBITDA from continuing operations 391.4 Special items, before tax 114.6 Interest expense included in special items (2.3) Depreciation and amortization included in special items (1.9) Adjusted EBITDA $ 501.8 3 AVNT Q1 2024 Earnings Presentation_For_Website_w_non-GAAP.pdf Avient corporation�first quarter 2024 results and 2024 financial guidance DISCLAIMER Slide Number 3 Regional demand trends-total company�Q1 Sales vs PY (Excluding FX) Slide Number 5 Slide Number 6 Slide Number 7 Slide Number 8 Slide Number 9 Slide Number 10 Slide Number 11 Slide Number 12 Slide Number 13 Slide Number 14 Slide Number 15 Slide Number 16 Slide Number 17 2023 segment, end market and Geography Color, Additives & Inks Specialty Engineered Materials Slide Number 21 IR Deck - AVNT-2024.03.31 5.06 11AM v2 (002).pdf Attachment

You are advised, however, to consult any further disclosures we make on related subjects in our reports on Forms 10-Q, 8-K and 10-K filed with the Securities and Exchange Commission. For the 2024 SARs grants, each of the 10%, 15% and 20% stock price performance hurdles were met in 2024. Proposal 3 - Ratification of EY Report of Audit Committee 10.