Q1 2023 (TOTAL COMPANY) $846 $829 $134 $143 17.3% (in millions) $0.63 $0.76 (in millions) + 7% + 21% Sales Adjusted EBITDA Adjusted EPS 9 - 2% 15.8% +150 bps Q1 2024 SEGMENT PERFORMANCE (COLOR, ADDITIVES & INKS) $537 $515 $91 $97 18.8% (in millions) (in millions) + 7% 10 - 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% 11 + 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) 12 $ 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 IDA N 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 14 Q2 2024: Adjusted EPS of $0.71 CE O “TO P O F M IN D ” FO CU S ARE A S AREAS OF FOCUS 16 +7% Drive Profitable Organic Top-Line Growth with Margin Expansion Amplify Innovation Build Leadership & Talent Pipeline AP P EN D IX 19 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% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 19% 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) 21 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2023 REVENUE | $2 .0 B ILL ION 34% 37% 21% END MARKET REGION 22 34% 21% 15% Building & 1% Energy COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 B ILL ION 52% 35% 23 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) 24 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.

Seller reserves to itself all applicable duty drawback allowances and Buyer shall provide assistance in connection with Seller’s application for same. 11.

Seller reserves to itself all applicable duty drawback allowances, and Buyer shall provide assistance in connection with Seller’s application for the same. 11.

Seller reserves to itself all applicable duty drawback allowances, and Buyer shall provide assistance in connection with Seller’s application for the same. 11.

Seller reserves to itself all applicable duty drawback allowances, and Buyer shall provide assistance in connection with Seller’s application for the same. 11.

Buyer shall file all tax returns (wherever applicable) in a timely manner so as to enable Seller to be able to receive or set off from its tax liability, as the case may be, all tax credits (including input tax credits) available to Seller on account of the sale of the Products. 11.

یعوضالضرائب والمصروفات والرسوم. 10 أو الإقلیمیة أو المحلیة أو غیرھا (بخلاف بالولایة الضرائب الاتحادیة أو الخاصة ضرائب الإنتاج أو المصروفات التي تشمل الضرائب ضرائب الدخل) أو والمصروفات التعویضیة الحكومیة، والتي یجب على البائع سدادھا فیما یتعلق ھذه المبالغ فقط غیر متضمنة في السعر عند بدایة كونوت بتصنیع وتورید المنتج، ھذا العقد، ویحتفظ البائع لنفسھ بجمیع مخصصات رد الرسوم الجمركیة المعمول بھا، وعلى المشتري تقدیم العون فیما یتعلق بطلب البائع المقدم بشأنھا. 11. تنتقل الملكیة ومخاطرة الملكیة ومخاطرة الخسارة، والمخاطر الأخرى .11 عند نقطة الشحن الخاصة بالبائع، ویتحمل المشتري الخسارة بالمنتج إلى المشتري التفریغ والتخزین والتنزیل ) التي تنشأ من 1كافة المخاطر والمسؤولیات ( الالتزام أو عدم الالتزام بالقوانین ) أو التي تنشأ من 2والمناولة واستخدام المنتج، ( أو الإقلیمیة أو المحلیة التي تسري على بالولایةواللوائح الاتحادیة أو الخاصة ولا یتحمل البائع المسؤولیة عن عدم تفریغ أو تنزیل أو التي تحكمھ.

Predávajúci si pre seba vyhradzuje všetky príslušné vratky cla a kupujúci poskytne pomoc v súvislosti so žiadosťou predávajúceho o ne. 11. Seller reserves to itself all applicable duty drawback allowances, and Buyer shall provide assistance in connection with Seller’s application for the same. 11.

11. फ्रांसिस्को नाकासटो, 1700 13295-000 इटुपेवा साओ पॉलो, ब्राज़ील दूरभाष: +55 11 4593 9200 यूरोप प्रक्षेत्रीय मुख्यालय पोमरलोक, लक्समबर्ग 19 रूट दे बास्टोग्ने पोमरलोक, लक्समबर्ग, L-9638 दूरभाष: +352 269 050 35 फैक्सः +352 269 050 45 https://www.avient.com अनुपालन के लिए गाइड नीति अवलोकन अमेरिकी एकाधिकारी व्यापार विरोधी कानूनों का अवलोकन एंटीट्रस्ट कानून का उल्लंघन चिंता के एंटीट्रस्ट संभावित क्षेत्र निष्कर्ष संभावित उल्लंघनों की सूचना देना Avient एथिक्स हॉटलाइन प्रतिशोध से सुरक्षा एंटीट्रस्ट चेकलिस्ट त्वरित संदर्भ: एंटीट्रस्ट करने-योग्य और न-करने-योग्य बातें

À ne pas faire : Conclure tout accord, entente ou discussion avec tout client concernant la sélection ou la résiliation par Avient d’autres clients ou les conditions auxquelles Avient traite ou pourrait traiter avec tout autre client, y compris les produits à vendre, à qui, à quels prix et dans quels territoires ou marchés les vendre. 11. Francisco Nakasato, 1700 13295-000 Itupeva Sao Paulo, Brésil Téléphone : +55 11 4593 9200 Europe Siège régional Pommerloch, Luxembourg 19 Route de Bastogne Pommer- loch, Luxembourg, L-9638 Téléphone : +352 269 050 35 Télécopie : +352 269 050 45 www.avient.com https://www.avient.com Référence rapide : Choses À FAIRE et À NE PAS FAIRE en matière de lois antitrust Liste de contrôle des lois antitrust Protection contre les représailles Signalement des violations potentielles Conclusion Domaines potentiellement délicats en matière de lois antitrust Violation des lois antitrust Aperçu des lois antitrust américaines Présentation de la politique Ligne d’assistance Éthique d’Avient