Khandpur previously served as Group President of the Transportation & Electronics business group for 3M Company. Khandpur held a series of roles with increasing responsibility, including Executive Vice President, Transportation & Electronics business group, from 2019 to 2021; Executive Vice President, Electronics & Energy business group, from 2017 to 2019; and Senior Vice President, Research & Development and Chief Technology Officer, from 2014 to 2017, among other roles.

Kronimus joined Avient in March 1999, and in addition to leading the company’s engineered materials business in Europe and India, also serves as Avient’s legal representative in the region, responsible for building and maintaining relationships with local governments and associations. Kronimus served as international controller and finance director as well as other positions of financial, commercial and plant management in Avient’s Color, Additives & Ink business unit. Kronimus earned a bachelors’s degree in Business Administration and Computer Science from University of Cologne in Cologne and a master’s degree in Global Management from Europäische Wirtschaftsakademie in Berlin.

Khandpur previously served as Group President of the Transportation & Electronics business group for 3M Company. Khandpur held a series of roles with increasing responsibility, including Executive Vice President, Transportation & Electronics business group, from 2019 to 2021; Executive Vice President, Electronics & Energy business group, from 2017 to 2019; and Senior Vice President, Research & Development and Chief Technology Officer, from 2014 to 2017, among other roles.

Khandpur previously served as Group President of the Transportation & Electronics business group for 3M Company. Khandpur held a series of roles with increasing responsibility, including Executive Vice President, Transportation & Electronics business group, from 2019 to 2021; Executive Vice President, Electronics & Energy business group, from 2017 to 2019; and Senior Vice President, Research & Development and Chief Technology Officer, from 2014 to 2017, among other roles.

She has over 25 years of legal expertise and business partnership having served in both in-house leadership roles and at leading law firms. Sanders spent over 20 years at 3M Company with various roles of increasing responsibility, culminating as Senior Vice President and Deputy General Counsel supporting global business operations for all segments and manufacturing operations. She earned a Bachelor of Business Administration with Honors in Finance, also from the University of Texas at Austin.

He previously served as Group President of the Transportation & Electronics business group for 3M Company. Khandpur held a series of roles with increasing responsibility, including Executive Vice President, Transportation & Electronics business group, from 2019 to 2021; Executive Vice President, Electronics & Energy business group, from 2017 to 2019; and Senior Vice President, Research & Development and Chief Technology Officer, from 2014 to 2017, among other roles.

Approach of the Avient Group to governance and risk management of UK tax matters The Avient Group establishes internal financial policies requiring UK businesses to comply with all applicable UK tax laws and deploys an internal review process to ensure this policy is followed timely and accurately. Approach with Her Majesty’s Revenue and Customs (“HMRC”) The Avient Group is committed to: • promoting a professional, collaborative, open, and transparent relationship with HMRC • discussing business activities and transactions with significant tax implications with HMRC in a timely fashion • engaging in timely dialogue with HMRC to respond to queries and information requests to ensure that HMRC is aware of how issues are progressing • working proactively with HMRC to resolve all tax disputes, and • making appropriate disclosures in tax returns, reports, and correspondence submitted to HMRC.

USAGE Avient provides User access to Information Systems to facilitate business communications and advance Avient business objectives. EXPECTATIONS FOR USE OF INFORMATION SYSTEMS Users shall: • Use all Information Systems consistent with their intended purpose, Avient business objectives, and the Code of Conduct; • Take necessary steps to prevent unauthorized access to and maintain security of Confidential Data; • Use only approved and secured methods when sharing Confidential Data and ensure recipients have authorization to receive Confidential Data and/or have obtained prior approval from User’s manager; and • Obtain approval from Avient’s Information Technology department before procuring, installing, connecting, using, or decommissioning software, systems, applications, or non- Avient devices to or from Information Systems, including, but not limited to, on premise and cloud-based systems. PROHIBITED USES OF INFORMATION SYSTEMS Users shall not use Avient Information Systems for any of the following prohibited uses: • Any activity prohibited by applicable law; • Violating Avient Ethics and Corporate Policies; • Infringing on the intellectual property rights of another individual or company; • Soliciting for activities or products unrelated to Avient’s business interests in furtherance of an independent business; • Improper or unauthorized use of email and email distribution lists, including mass or unsolicited emails (such as chain letters) and forging email header information or signatures; • Exporting, transferring, downloading, copying, or saving Confidential Data or Information Systems to non-approved devices or locations; • Intentionally introducing security threats to Information Systems or effecting a Cyber or Data Incident; or • Engaging in any other activity similar to the above that, in Avient’s reasonable judgment, is disruptive to or not in the best interests of its business.

To verify that this certificate is current, please refer to the SAI Global On-Line Certification Register: https://www.saiglobal.com/en-us/assurance/auditing_and_certification/certification_registry/ This is to certify that operates a which complies with the requirements of for the following scope of certification CERTIFICATE OF REGISTRATION Frank Camasta Global Head of Technical Services SAI Global Assurance http://www.qmi-saiglobal.com/qmi_companies http://www.qmi-saiglobal.com/qmi_companies

ETO / Gamma radiation) • Facilitated 510(k) submission with formulations registered under Device Master File MAF 1833 • Pre-tested raw materials to biocompatibility ISO10993, US and Eu Pharmacopeia, ICH-Q3D extractable metals • Enhanced stability with gamma stabilizing package • Minimized risk of change with change control beyond CAS number level • Ensured uninterrupted supply from multiple ISO 13485-2016 certified sites • MEVOPURTM ISO 6009 Standard / Customized Solutions KEY REQUIREMENTS WHY AVIENT?