Attachment 2 Tax adjustments(2) 2)

November 2, 2023 Nov. 2, 2023 2)

Forward – Looking Statements Page 2 • This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. EPS: $2.50 Assumptions • Operating margins in mid-range of 2015 targets • No global recession • No investment in incremental PP&S capacity • Completion of 2-3 midsize accretive acquisitions • Housing starts at 85% of 50 year norm by 2015 • Mid single digit revenue CAGR • Remain comfortably below 3X Net Debt / EBITDA Page 11 2012 Rev: $2.9B Adj. Platform operating income mix percentage 2005Y* 2008Y* 2010Y* 2012Y* 2012PF** H1 2013*** Global Specialty Engineered Materials $ 0.4 $ 17.6 $ 49.7 $ 47.0 $ 47.7 $ 32.5 Global Color, Additives and Inks 4.3 28.1 37.7 66.8 81.6 54.7 Designed Structures & Solutions - - - - 20.9 10.5 Specialty Platform $ 4.7 $ 45.7 $ 87.4 $ 113.8 $ 150.2 $ 97.7 Performance Products and Solutions 75.7 31.3 54.0 74.9 37.4 27.5 Distribution 19.5 28.1 42.0 66.0 66.0 33.1 SunBelt Joint Venture 91.9 28.6 18.9 - - - Corporate (51.5) (425.1) (27.7) (87.6) (87.9) (37.1) Operating income (loss) GAAP $ 140.3 $ (291.4) $ 174.6 $ 167.1 $ 165.7 $ 121.2 Less: Corporate operating expense (income) 51.5 425.1 27.7 87.6 87.9 37.1 Operating income excluding Corporate $ 191.8 $ 133.7 $ 202.3 $ 254.7 $ 253.6 $ 158.3 Specialty platform operating mix percentage 2% 34% 43% 45% 60% 62% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment. ** Pro Forma results include Spartech and Glasforms acquisitions, Specialty Coatings reclass and exclude the Resin business assets. *** Restated results to exclude the Resin business and to remove Specialty Coatings from the Performance Products and Solutions segment into Global Color, Additives and Inks segment.

Forward – Looking Statements Page 2 • This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. EPS: $2.50 Assumptions • Operating margins in mid-range of 2015 targets • No global recession • No investment in incremental PP&S capacity • Completion of 2-3 midsize accretive acquisitions • Housing starts at 85% of 50 year norm by 2015 • Mid single digit revenue CAGR • Remain comfortably below 3X Net Debt / EBITDA Page 12 2012 Rev: $2.9B Adj. Platform operating income mix percentage 2005Y* 2006Y* 2007Y* 2008Y* 2009Y* 2010Y* 2011Y* Global Specialty Engineered Materials $ 0.4 $ 3.9 $ 4.9 $ 17.6 $ 20.6 $ 49.7 $ 45.9 Global Color, Additives and Inks 4.3 8.9 25.7 28.1 25.2 37.7 43.4 Specialty Platform $ 4.7 $ 12.8 $ 30.6 $ 45.7 $ 45.8 $ 87.4 $ 89.3 Performance Products and Solutions 75.7 64.2 65.8 31.3 33.1 54.0 62.4 Distribution 19.5 19.2 22.1 28.1 24.8 42.0 56.0 SunBelt Joint Venture 91.9 102.9 34.8 28.6 25.5 18.9 5.0 Corporate (51.5) 34.5 (73.3) (425.1) 7.9 (27.7) 20.3 Operating income (loss) GAAP $ 140.3 $ 233.6 $ 80.0 $ (291.4) $ 137.1 $ 174.6 $ 233.0 Less: Corporate operating expense (income) 51.5 (34.5) 73.3 425.1 (7.9) 27.7 (20.3) Operating income excluding Corporate $ 191.8 $ 199.1 $ 153.3 $ 133.7 $ 129.2 $ 202.3 $ 212.7 Specialty platform operating mix percentage 2% 6% 20% 34% 35% 43% 42% Platform operating income mix percentage 2012Y* 2012PF** Global Specialty Engineered Materials $ 47.0 $ 47.7 Global Color, Additives and Inks 66.8 81.6 Designed Structures & Solutions -- 20.9 Specialty Platform $ 113.8 $ 150.2 Performance Products and Solutions 74.9 37.4 Distribution 66.0 66.0 Corporate (87.6) ( 87.9) )Operating income GAAP $ 167.1 $ 165.7 Less: Corporate operating expense 87.6 87.9 Operating income excluding Corporate $ 254.7 $ 253.6 45% 60% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment. ** Pro Forma results include Spartech and Glasforms acquisitions, Specialty Coatings reclass and excludes the Resin business assets.

Forward – Looking Statements Page 2 • This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Use of Non GAAP Measures Page 3 -150.00% -100.00% -50.00% 0.00% 50.00% 100.00% 150.00% 200.00% 250.00% 300.00% 350.00% PolyOne S&P 500 Strategy and Execution Drive Results Page 4 • Since 2006, PolyOne stock has expanded approximately 300% vs. a 30% increase in the S&P 500 All time closing high of $26.63 May 28, 2013 The World’s Premier Provider of Specialized Polymer Materials, Services & Solutions Four Pillar Strategy Page 5 2013 Portfolio Transformation Highlights • Substantial organic mix improvement drives 29% increase in first quarter EPS – 14th consecutive quarter of double-digit EPS growth • Completed acquisition of Spartech • Announced the creation of a new Specialty segment – Designed Structures and Solutions • Completed the sale of our non-core resin assets • Realigned our Specialty Coatings business into our GCAI segment Page 6 0.12 0.27 0.21 0.13 0.68 0.82 1.00 2.50 $0.00 $0.25 $0.50 $0.75 $1.00 $1.25 $1.50 $1.75 $2.00 $2.25 $2.50 2006 2007 2008 2009 2010* 2011* 2012* 2015 Target Ad ju st ed E ar ni ng s P er S ha re Appliance 6% Building & Construction 13% Wire & Cable 9% Electrical & Electronics 4% Consumer 9% Packaging 18% Industrial 10% Misc. 5% HealthCare 9% Transportation 16% Textiles 1% PP&S 15% Specialty 60% Distribution 25% United States 70% Europe 14% Canada 8% Asia 5% Latin America 3% 2012 Revenues: $4.0 Billion* End Markets* 2012 Revenues: $4.0 Billion* EPS Page 7 * Pro Forma includes FY2012 results for Spartech (11/03/12 YE) and Glasforms & excludes resin assets PolyOne At A Glance * Restated to exclude discontinued operations Old PolyOne Transformation *Operating Income excludes corporate charges and special items **Pro Forma results include Spartech and Glasforms acquisitions, Specialty Coatings reclass and excludes resin assets 2% 34% 43% 45% 60% 65 – 75% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2012 2012PF** 2015 % o f O pe ra tin g In co m e* JV's PP&S Distribution Specialty Specialty OI $5M $46M $87M $114M $150M Target Mix Shift Highlights Specialty Transformation 2015 Target Page 8 2007 Q1 2013 2015 Target 1) Operating Income % Specialty: Global Color, Additives & Inks 4.6% 11.7% 12 – 16% Global Specialty Engineered Materials 1.3% 10.1% 12 – 16% Designed Structures & Solutions -- 4.6% 8 – 10% Performance Products & Solutions 6.1% 8.1% 9 – 12% Distribution 3.0% 6.0% 6 – 7.5% 2) Specialty Platform % of Operating Income 20% 60% 65 – 75% 3) ROIC* (after-tax) 7% 9.2% 15% 4) Adjusted EPS Growth N/A 29% Double Digit Expansion Proof of Performance & 2015 Goals *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period Page 9 *Percentage of Specialty Platform revenue from products introduced in last five years 19.5% 50.0% 2006 Q1 2013 $20.3 $41.9 2006 2012 14.3% 27.8% 2006 Q1 2013 Research & Development Spending Specialty Platform Vitality Index Progression* Innovation Drives Earnings Growth ($ millions) Specialty Platform Gross Margin % Page 10 Positioned for Strong Growth 2015 Target Rev: $5B Adj. EPS: $2.50 Assumptions • Operating margins in mid-range of 2015 targets • No global recession • No investment in incremental PP&S capacity • Completion of 2-3 midsize accretive acquisitions • Housing starts at 85% of 50 year norm by 2015 • Mid single digit revenue CAGR • Remain comfortably below 3X Net Debt / EBITDA Page 11 2012 Rev: $2.9B Adj.

กฎหมาย Sherman Act ห้ามมิ ให้: • ทำ�การปฏิบัตริว่มกันที่จำ�กัดขอบเขตการคา้อย่างไม่สมเหตุ สมผล (รวมถึง การตกลงรว่มกันกำ�หนดราคา การจำ�กัด ผลิตผล การจัดสรรลูกคา้หรอือาณาเขตระหวา่งคูแ่ข่ง การ คว่ำ�บาตรของกลุ่ม และการจำ�กัดการแจกจ่ายและการออกใบ อนุญาตบางอย่าง) • ประกาศเกี่ยวกับการผูกขาดและความพยายามที่ผิดกฎหมาย และสมคบคิดเพื่อผูกขาด (แม้ว่าจะไม่ประสบความสำ�เร็จ ก็ตาม) 2. การตกลงร่วมกันในแนวราบ ความผิดรา้ยแรงที่สุดคอืการตกลง รว่มกันในแนวราบ (Horizontal agreement) ระหวา่งคูแ่ข่งเพื่อ ยับยัง้การแข่งขัน ตวัอย่างของการตกลงดงักล่าวรวมถึงส่ิงตอ่ไปน้ี: • การตกลงรว่มกันกำ�หนดราคา (Price Fixing)—การตกลง กับคูแ่ข่งที่จะกำ�หนดหรอืส่งผลกระทบกับราคา การประมูล เงือ่นไขและข้อกำ�หนดในการขาย ควรจำ�ไวว้า่ลูกคา้และผู้ผลิต ของ Avient อาจเป็นคูแ่ข่งของ Avient • การจำ�กัดการผลิต (Production Restriction)—การตกลง กับคูแ่ข่งที่จะกำ�หนดขอบเขตหรอืจำ�กัดการผลิตเพื่อรกัษา ปรมิาณสินคา้ให้มีจำ�นวนจำ�กัดและมีราคาที่สูง • การจำ�กัดคณุภาพ (Quality Restriction)—การตกลงกับคู่ แข่งที่จะจำ�กัดการแข่งขันโดยใช้คณุภาพของผลิตภัณฑ์เป็น พืน้ฐาน • การแบ่งตลาดการคา้ (Market Division)—การตกลงกับคู่ แข่งที่จะแบ่งตลาดการคา้ผ่านการจัดสรรของอาณาเขตการ ขาย สายผลิตภัณฑ์ หรอืโดยการแบ่งหรอืการจัดสรรลูกคา้หรอื ผู้ผลิตบางอย่าง • การปฏิเสธในการทำ�ธุรกิจ (Refusals to Deal)—การตกลงกับ คูแ่ข่งที่จะคว่ำ�บาตรหรอืไม่ทำ�ธุรกิจกับบรษัิทภายนอก 2. แข่งขันอย่างทุ่มเทและเป็นอิสระตลอดเวลา ปฏิบัติ ในลักษณะ ที่แสดงให้ผู้อื่นเห็นวา่คณุแข่งขันอย่างทุ่มเทตลอดเวลา หลีก เลีย่งการตดิตอ่กับคูแ่ข่งโดยไม่จำ�เป็น 2.

2 Uplácení vládních činitelů 2 Komerční úplatkářství 3 Platby za rychlé vyřízení a nezákonné provize 3 Spolupráce se zástupci, distributory a dalšími třetími stranami 3 Proces náležité péče a schvalování 3 Výstražné signály 4 Požadavky na účetnictví a uchovávání záznamů 4 Hlášení možných porušení 4 Horká linka pro etiku společnosti Avient 4 Ochrana před odvetou 5 Rychlý odkaz: PRO A PROTI APLIKACE ZÁKONŮ O ÚPLATKÁŘSTVÍ A KORUPCI 6 1 Globální zásady boje proti úplatkářství a korupci společnosti Avient Společnost Avient přísně zakazuje jakékoliv podvody, úplatkářství a další korupční obchodní praktiky ve všech našich obchodních činnostech kdekoli na světě. Naše odpovědnost Všichni zaměstnanci, spolupracovníci a třetí strany jednající jménem společnosti Avient odpovídají za pochopení a dodržování těchto Zásad a každý z nich má povinnost: • Seznamte se s příslušnými aspekty Zásad a sdělte je svým podřízeným. • Ptejte se, jestliže jsou Zásady nebo akce požadovaná v konkrétní situaci nejasné • Řádně spravujte a monitorujte obchodní aktivity prováděné prostřednictvím třetích stran • Dávejte pozor na náznaky nebo důkazy možného pochybení • Okamžitě oznamte porušení nebo podezření na porušení předpisů prostřednictvím příslušných kanálů Zákony proti úplatkářství a korupci stanoví jako nezákonné, když jakákoli společnost nebo osoba, která může nabízet, slibovat, vyplácet nebo schvalovat platbu čehokoli hodnotného každému jednotlivci 2 k udržení nebo zajištění zakázky nebo získání jiné nepatřičné obchodní výhody. Tento zákaz platí, pokud je nabídka nebo platba realizována přímo nebo prostřednictvím jiné osoby. 2 Sem patří jakýkoli vládní úředník a/nebo zaměstnanec soukromého sektoru domovská stránka | obsah 2 Aby bylo možné dodržovat zákony proti úplatkářství a korupci, nesmí žádný spolupracovník nebo třetí strany jednající jménem společnosti Avient nikdy nikomu nabízet nebo od nikoho přijímat, přímo či nepřímo, jakoukoli formu daru, zábavy nebo čehokoli cenného, když je smyslem takového úplatku: • Získání nebo udržení zakázky • Ovlivnění obchodního rozhodnutí • Zajištění neférové výhody Zákony proti úplatkářství a korupci mají dalekosáhlý dosah a lze je vykládat velmi všeobecně.

Has an immediate family member who is a current partner of the Company’s internal or external auditor, or who is a current employee of the Company’s internal or external auditor and personally works on the Company’s audit; 2 E. Is a current employee, or has an immediate family member who is a current executive officer of, a company that makes or has made payments to, or received payments from, the Company for property or services in an amount which, in any of the last three fiscal years, exceeds the greater of $1 million, or 2% of the other company’s consolidated gross revenues. All such actions, interpretations and determinations that are done or made by the Board in good faith will be final, conclusive and binding. 2.

GLS™ TPEs INJECTION MOLDING GUIDE 2 Table of Contents Page 1. Figure 2. A-2 Good high toughness tool steel.

Trilliant™ HC high performance formulations were developed for specific healthcare enclosure needs, including: • Chemical resistance to common disinfectants • UL 94 ratings of 5VA at 3.0, V-0 at 1.5 mm & V-1 at 0.75 mm • Retained color aesthetics after chemical exposure • Ability to utilize existing PC/PET & COPE tooling Tested using an adaptation from ASTM D543 for environmental stress cracking resistance (ESCR), 15 bars of each material were placed into jigs at 1% and 2% strain. This procedure was completed by placing one 1/2 inch section of rayon gauze at the apex of each bar, and soaking the gauze with the disinfectant to saturate the material.