Francisco Nakasato, 1700 13295-000 Itupeva Sao Paulo, Brazil Telephone: +55 11 4593 9200 Europe Regional Headquarters Pommerloch, Luxembourg 19 Route de Bastogne Pommerloch, Luxembourg, L-9638 Telephone: +352 269 050 35 Fax: +352 269 050 45 www.avient.com http://www.avient.com

The boss should extend into the nominal wall of the part, to avoid a thick region and possible sink Figure 4 - Drafting Guidelines for Nominal Wall Thickness Cross section showing draft Figure 5 - Rib design guidelines 1/4˚—–1˚ 2.5W W 3W Min. .01" R Min. or .25W .75W for a low shrink material .50W for a high shrink material Figure 6 - Wall thickness changes due to rib placement 16.00 14.00 12.00 10.00 8.00 6.00 4.00 2.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 Rib-height (mm) M ax D is p la ce m en t M ag n it u d e (m m ) 0 FIGURE 4 - Drafing guidelines for nominal wall thickness FIGURE 5 - Rib design guidelines FIGURE 7 - Wall thickness changes due to rib placement FIGURE 6 - Rib height vs. stiffness 10 Gravi-Tech FIGURE 8 - Side Wall Boss Design Guidelines Sink Not Recommended Preferred Design A = Diameter = A = Primary Wall = A = 2A FIGURE 9 - Guidelines Design Guidelines 4W W 2W .75W For a Low Shrink Material .50W For a High Shrink Material FIGURE 9 - Side wall boss design guidelines FIGURE 10 - Gusset design guidelines FIGURE 11 - Structural hole design guidelines area.

Remi de Napierville, 10. In June 2014, PolyOne determined it would close its Diadema and Joinville, Brazil facilities that were acquired in 2011 with the acquisition of Uniplen Industria de Polimeros Ltda. Any allocation to Franklin-Burlington, including a final resolution of our de minimis petition or other opportunity for cash-out settlement, or further appropriate legal actions has not been determined.

Francisco Nakasato, 1700 13295-000 Itupeva Sao Paulo, Brazil 电话：+55 11 4593 9200 欧洲 地区总部，卢森堡 Pommerloch 19 Route de Bastogne Pommerloch, Luxembourg, L-9638 电话：+352 269 050 35 传真：+352 269 050 45 http://www.avient.com 合规指南 政策概览 美国反垄断法律概览 违反反垄断法律 需关注的潜在反垄断方面 总结 举报可能的违规行为 Avient 道德热线 防止打击报复 反垄断清单 快速参考：反垄断需做事项和禁止事项

Francisco Nakasato, 1700 13295-000 Itrevea Sao Paulo, Brazílie Telefonní číslo: +55 11 4593 9200 Evropa Regionální centrála Pommer- loch, Lucembursko 19 Route de Bastogne Pommer- loch, Lucembursko, L-9638 Telefonní číslo: +352 269 050 35 Fax: +352 269 050 45 www.avient.com http://www.avient.com

Поммерлох, Люксем- бург 19 Route de Bastogne Pommerloch, Luxembourg, L-9638 Телефон: +352 269 050 35 Факс: +352 269 050 45 www.avient.com http://www.avient.com ОБРАЩЕНИЕ ГЕНЕРАЛЬНОГО ДИРЕКТОРА Наше видение и стратегия Основополагающие и личностные ценности Наш кодекс поведения РУКОВОДЯЩИЕ ПРИНЦИПЫ ДЛЯ ЭТИЧНОГО ПОВЕДЕНИЯ ЛИЧНОСТНЫЕ ЦЕННОСТИ РЕШЕНИЕ ВОПРОСОВ И СООБЩЕНИЯ О СИТУАЦИЯХ, КОГДА ПРОИСХОДЯТ НАРУШЕНИЯ НОРМАТИВНО-ПРАВОВОГО СООТВЕТСТВИЯ ГОРЯЧАЯ ЛИНИЯ ПО ВОПРОСАМ ЭТИКИ ЗАПРЕТ МЕР ВОЗМЕЗДИЯ ПРИМЕНЕНИЕ КОДЕКСА ПОВЕДЕНИЯ НАРУШЕНИЯ КОДЕКСА Уважение ко всем РАЗНООБРАЗИЕ И ВКЛЮЧЕНИЕ СОТРУДНИКОВ В ПРОЦЕСС ОБСУЖДЕНИЯ ПРОБЛЕМ ДИСКРИМИНАЦИЯ ИЛИ ПРИТЕСНЕНИЯ ОТНОШЕНИЯ НА РАБОЧЕМ МЕСТЕ ЗЛОУПОТРЕБЛЕНИЕ АЛКОГОЛЕМ И НАРКОТИКАМИ ФИЗИЧЕСКАЯ БЕЗОПАСНОСТЬ И НАСИЛИЕ НА РАБОЧЕМ МЕСТЕ Честность на рабочем месте ТОЧНАЯ ИНФОРМАЦИЯ, ДАННЫЕ И ДОКУМЕНТАЦИЯ ДОБРОСОВЕСТНОСТЬ БУХГАЛТЕРСКОГО УЧЕТА РАССЛЕДОВАНИЯ, ПРОВОДИМЫЕ ГОСУДАРСТВЕННЫМИ ОРГАНАМИ, И ЗАПРОСЫ ПОЛИТИЧЕСКИЕ ВЗНОСЫ/МЕРОПРИЯТИЯ И БЛАГОТВОРИТЕЛЬНЫЕ ВЗНОСЫ ИНСАЙДЕРСКАЯ ИНФОРМАЦИЯ И ТОРГОВЛЯ КОМПЬЮТЕРНАЯ БЕЗОПАСНОСТЬ, ЛИЦЕНЗИРОВАНИЕ ПРОГРАММНОГО ОБЕСПЕЧЕНИЯ И АВТОРСКИЕ ПРАВА СОЦИАЛЬНЫЕ МЕДИА И СОЦИАЛЬНЫЕ СЕТИ КОНФИДЕНЦИАЛЬНОСТЬ, ЛИЧНАЯ ИНФОРМАЦИЯ И ЗАЩИТА ДАННЫХ ЛИЧНАЯ И КОНФИДЕНЦИАЛЬНАЯ ИНФОРМАЦИЯ, ИДЕИ И ИНТЕЛЛЕКТУАЛЬНАЯ СОБСТВЕННОСТЬ ЗАЩИТА АКТИВОВ И ИХ ИСПОЛЬЗОВАНИЕ КОММУНИКАЦИИ КОМПАНИИ ИСПОЛЬЗОВАНИЕ ИНТЕРНЕТА И ЭЛЕКТРОННОЙ ПОЧТЫ Добросовестность в нашем бизнесе ЧЕСТНАЯ ДЕЛОВАЯ ПРАКТИКА ВЗЯТКИ И ОТКАТЫ АГЕНТЫ И КОНСУЛЬТАНТЫ КОНКУРЕНЦИЯ ПОДАРКИ И ЗНАКИ ГОСТЕПРИИМСТВА КОНФЛИКТ ИНТЕРЕСОВ ЗЛОУПОТРЕБЛЕНИЕ СЛУЖЕБНЫМ ПОЛОЖЕНИЕМ МЕЖДУНАРОДНАЯ ТОРГОВЛЯ Корпоративная социальная ответственность УСТОЙЧИВОЕ РАЗВИТИЕ БЕЗОПАСНОСТЬ, ЗДОРОВЬЕ И ОКРУЖАЮЩАЯ СРЕДА БЕЗОПАСНОСТЬ ПРОДУКЦИИ И УСЛУГ УВАЖЕНИЕ ПРАВ ЧЕЛОВЕКА СОВМЕСТНОЕ ОБЯЗАТЕЛЬСТВО

The round at the bottom of the boss should Figure 4 - Drafting Guidelines for Nominal Wall Thickness Cross section showing draft Figure 5 - Rib design guidelines 1/4˚—–1˚ 2.5W W 3W Min. .01" R Min. or .25W .75W for a low shrink material .50W for a high shrink material Figure 6 - Wall thickness changes due to rib placement 16.00 14.00 12.00 10.00 8.00 6.00 4.00 2.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 Rib-height (mm) M ax D is p la ce m en t M ag n it u d e (m m ) 0 FIGURE 4 - Drafing guidelines for nominal wall thickness FIGURE 5 - Rib design guidelines FIGURE 7 - Wall thickness changes due to rib placement FIGURE 6 - Rib height vs. stiffness 10 Gravi-Tech FIGURE 8 - Side Wall Boss Design Guidelines Sink Not Recommended Preferred Design A = Diameter = A = Primary Wall = A = 2A FIGURE 9 - Guidelines Design Guidelines 4W W 2W .75W For a Low Shrink Material .50W For a High Shrink Material FIGURE 9 - Side wall boss design guidelines FIGURE 10 - Gusset design guidelines FIGURE 11 - Structural hole design guidelines be 10% of wall thickness.

Skills/Experience A be rn at hy Fe ar o n G o ff G re en Je lli so n K ha nd pu r Li n M in k N ic o la s P re et e V er du in W ul fs o hn Financial Knowledge of finance or financial reporting; experience with debt/capital market transactions and/or mergers and acquisitions l l l l l l l l l International Experience doing business internationally or focused on international issues and operations and exposure to markets, economies, and cultures outside the U.S. l l l l l l l l l l l l Industry Expertise Significant experience in the Company’s businesses and industries l l l l l l l l l Regulatory Experience in government and regulatory affairs, and regulated industries, including as part of a business and/or through positions with government organizations and regulatory bodies l l l l l l l l Technology Technical or scientific knowledge and experience implementing technology strategies l l l l l Human Capital Experience in management of labor relations, in human resources, and talent management l l l l l l l l l l Operations Experience overseeing complex operations and developing and implementing operational plans and business operations strategy l l l l l l l l l l l Corporate Governance Experience and understanding of governance matters and principles, including management accountability, transparency and protection of shareholder interests l l l l l l l l l l l l IT and Cybersecurity Experience and understanding of information security, data privacy and cybersecurity l l l l Sustainability Experience in environmental matters, community affairs, and/or corporate responsibility initiatives including sustainability l l l l l l l l l l l l Other Public Company Boards 1 3 — — 2 1 2 2 — 1 2 1 OUR PURPOSE AND STRATEGIC FRAMEWORK PROXY STATEMENT 2025 | Annual Meeting of Shareholders 7 Governance Highlights As part of our commitment to overall excellence, our Company’s governance practices include the following: Director Independence • Eleven out of our twelve Director nominees are independent. • The independent Directors regularly hold executive sessions without management at Board and committee meetings. Director since: 2018 Age: 70 Current Public Company Directorships: • Haemonetics Corporation Former Directorships: • Halyard Health, Inc. • RadioShack Corp. • Lubrizol Corp. • Kimberly-Clark de Mexico ELECTION OF BOARD OF DIRECTORS PROXY STATEMENT 2025 | Annual Meeting of Shareholders 11 Richard H.

+55 11 4593 9200 Europa Regional Headquarters Pom- merloch, Luksemburg 19 Route de Bastogne Pommer- loch, Luksemburg, L-9638 Tel. +352 269 050 35 Faks: +352 269 050 45 www.avient.com http://www.avient.com

Francisco Nakasato, 1700 13295-000 Itupeva San Paolo, Brasile Telefono: +55 11 4593 9200 Europa Sede regionale Pommerloch, Lussemburgo 19 Route de Bastogne Pommer- loch, Lussemburgo, L-9638 Telefono: +352 269 050 35 Fax: +352 269 050 45 www.avient.com http://www.avient.com