December 4 Attachment 4 Proceeds from plant closures

Adjusted earnings per share increased 4% to Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: our ability to realize anticipated savings and operational benefits from the realignment of assets, including the closure of manufacturing facilities; the timing of closings and shifts of production to new facilities related to asset realignments and any unforeseen loss of customers and/or disruptions of service or quality caused by such closings and/or production shifts; separation and severance amounts that differ from original estimates; amounts for non-cash charges related to asset write-offs and accelerated depreciation realignments of property, plant and equipment, that differ from original estimates; our ability to identify and evaluate acquisition targets and consummate acquisitions; the ability to successfully integrate acquired businesses into our operations, such as Gordon Composites and Polystrand, including whether such businesses will be accretive, retain the management teams of acquired businesses, and retain relationships with customers of acquired businesses; disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; the financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability; the speed and extent of an economic recovery, including the recovery of the housing market; our ability to achieve new business gains; the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; changes in polymer consumption growth rates and laws and regulations regarding the disposal of plastic in jurisdictions where we conduct business; changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online; fluctuations in raw material prices, quality and supply and in energy prices and supply; production outages or material costs associated with scheduled or unscheduled maintenance programs; unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; an inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions and employee productivity goals; an inability to raise or sustain prices for products or services; an inability to maintain appropriate relations with unions and employees; our ability to continue to pay cash dividends; the amount and timing of repurchases of our common shares, if any; and other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation. Attachment 4

سياسة Avient العالمية لمكافحة الرشوة والفساد تاريخ الإصدار: 1 يوليو 2020 1 سياستنا العالمية لمكافحة الرشوة والفساد 1 أهمية الامتثال 1 مسؤوليتنا 2 ما هي الرشوة؟ 2 تقديم رشوة للمسؤولين الحكوميين 2 الرشوة التجارية 2 مدفوعات التيسير والعملات الخفية 3 العمل مع الوكلاء والموزعين والأطراف الخارجية الأخرى 3 العناية الواجبة وعملية الموافقة 3 مؤشرات التحذير 3 المتطلبات المحاسبية وحفظ السجلات 3 الإبلاغ عن الانتهاكات المحتملة 4 Avient الخط الساخن للأخلاقيات في 4 الحماية من الانتقام 5 المرجع السريع: الممارسات المسموح بها والمحظورة بشأن مكافحة الرشوة والفساد   1 سياستنا العالمية لمكافحة الرشوة والفساد ہماری عالمگیر پالیسی تحظر Avient بشدة الغش والرشوة وغيرها من الممارسات التجارية الفاسدة في جميع عملياتها في أي مكان في العالم. subject= 4 Avient الخط الساخن للأخلاقيات في الخط الساخن للأخلاقيات متاح عالميًا بأكثر من 20 لغة على مدار الساعة طوال أيام الأسبوع، عبر الهاتف أو الموقع الإلكتروني. .Avient إجراء إدخالات مضللة أو ناقصة أو خاطئة في دفاتر وسجلات تجاهل مؤشرات التحذير عند التعامل مع الأطراف الخارجية. • أمريكا الشمالية المقر العالمي آفون ليك، الولايات المتحدة الأمريكية 33587 ووكر رود آفون ليك، أوهايو ، الولايات المتحدة 44012 الخط المجاني: 9663 765 866 1+ الهاتف: 1000 930 440 1+ الفاكس:3064 930 440 1+ آسيا والمحيط الهادئ المقر الإقليمي بشنغهاي الصين 2ف، بلوك سي 200 جينسو رود بودونغ، 201206، شنغهاي، الصين الهاتف: 4888 6028 21 (0) 86+ الفاكس:4999 6028 21 (0) 86+ أمريكا الجنوبية المقر الإقليمي ساو باولو ، البرازيل جادة فرانسيسكو ناكاساتو، 1700 000- 13295إتوبيفا، ساو باولو، البرازيل الهاتف: 9200 4593 11 55+ أوروبا المقر الإقليمي بومرلوتش، لوكسمبورغ 19 طريق باستون بومرلوتش، لوكسمبورغ، L-9638 الهاتف: 35 050 269 352+ الفاكس: 45 050 269 352+ www.avient.com http://www.avient.com

CONTACT INFORMATION Polymer Diagnostics Inc. 33587 Walker Road Avon Lake, Ohio 44012 United States +1 800 438 2335 +1 440 930 1644 fax Polymer Diagnostics Inc. is a contract laboratory with accreditation to ISO/IEC 17025 by the American Association for Laboratory Accreditation (A2LA) for both chemical and mechanical capacities.

TECHNICAL EXPERTISE HELPS ELECTRONIC CONNECTOR COMPANY ENTER NEW MARKET © 2021, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 To learn more about Bergamid™ Nylon Formulations, contact Avient at +1.844.4AVIENT (1.844.428.4368) or visit us at avient.com.

A COMPLEX SEAT FASTENER AT A LOWER COST, LOWER WEIGHT AND WITH GREATER DESIGN FLEXIBILITY © 2021, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 To learn more about Bergamid™ Nylon Formulations , contact Avient at +1.844.4AVIENT (1.844.428.4368) or visit us at avient.com.

© 2023, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 Click here to learn more about Avient CORE™ Non-Phthalate Plastisols or call 1-844-4AVIENT https://www.avient.com/company/sustainability/sustainability-report/products/no-surprises-pledge-0 https://www.avient.com/products/vinyl-formulations/vinyl-plastisols-organosols/core-non-phthalate-plastisols

Revolución 842, Zona Industrial Ventanilla - Callao, Lima - Perú Phone: +51.1.613.4242 Rutland/Union Ohio Service Center 777-M-N Dearborn Park Lane Worthington, OH 43085 Phone: +1 614.846.3055 Rutland/Union Warehouse 28 Eldon Way Paddock Wood Kent TN12 6BE UK Phone: +44.0.1892.834.555 Rutland/Union/Wilflex Manufacturing Plant No. 1 QiHang Industrial Park HaoXiang Road, Shajing Town, BaoAn District Shenzhen, China, 518104 Phone: +86.755.2969.2888 Specialty Inks

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include the impact the COVID-19 pandemic has on our business, results from operations, financial condition and liquidity; our ability to achieve the strategic and other objectives relating to the acquisition of Clariant's Masterbatch business, including any expected synergies; our ability to successfully integrate Clariant's Masterbatch business and achieve the expected results of the acquisition of Clariant's Masterbatch business, including, without limitation, the acquisition being accretive; disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; changes in polymer consumption growth rates and laws and regulations regarding plastics in jurisdictions where we conduct business; changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online; fluctuations in raw material prices, quality and supply, and in energy prices and supply; production outages or material costs associated with scheduled or unscheduled maintenance programs; unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; an inability to raise or sustain prices for products or services; an ability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to acquisitions and integration, working capital reductions, costs reductions and employee productivity goals; information systems failures and cyberattacks; and other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation.

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