KEY CHARACTERISTICS • Manufactured under ISO 13485 procedures • Documented change control beyond CAS number, reducing risk of change • Can be used on common injection molding and extrusion machines—set-up support by a technical assistance team • Available for use in polyolefins, styrenics and copolymers • Can be combined with colorants REGULATORY SUPPORT • Raw materials tested to: - ISO 10993-1 - USP and (incl. class VI) - European Pharmacopeia, monograph 3.1.3/ 3.1.5 (polyolefin packaging materials) - USP (polyethylene) - Elemental impurities as per ICH Q3D • Registered Drug Master File (Type III) and/or Device Master File • Food contact according to USA FDA and EU norms APPLICATION BULLETIN Sustainability Spotlight Healthcare use limitations apply—see below.

Date Registered ID Officers/Authorised Representative(s) Position Held Nationality/CitizenshipName Date of Appointment SOH SOCK LAN S1189628F SINGAPORE CITIZEN 01/06/2020ACRA Director47 JURONG EAST AVENUE 1 #03-01 PARC OASIS SINGAPORE (609780) LIM JOO ANN S8679985E MALAYSIAN 01/06/2020ACRA Director311 JURONG EAST STREET 32 #02-331 JURONG EAST 32 SINGAPORE (600311) IAN NG FOOK YUN S2565916C SINGAPORE CITIZEN 27/05/2019ACRA Secretary151 CAVENAGH ROAD #09-161 CAVENAGH COURT SINGAPORE (229628) ANNA MARDIANA ALISJAHBANA S2205619J SINGAPORE CITIZEN 27/05/2019ACRA Page 2 of 4 ID Officers/Authorised Representative(s) Position Held Nationality/CitizenshipName Date of Appointment Secretary46 EASTWOOD ROAD #04-06 LAGUNA 88 SINGAPORE (486356) Shareholder(s) Name ID Nationality/Citizenship Place of incorporation/ Origin/Registration Address Changed AVIENT SWITZERLAND GMBH T16UF0762F SWITZERLAND ACRA1 ROTHAUSSTRASSE 61 4132 MUTTENZ, SWITZERLAND Ordinary(Number) Currency 3000000 SINGAPORE, DOLLARS Abbreviation UL - Local Entity not registered with ACRA UF - Foreign Entity not registered with ACRA AR - Annual Return AGM - Annual General Meeting FS - Financial Statements OSCARS - One Stop Change of Address Reporting Service by Immigration & Checkpoint Authority.

LABORATORY EQUIPMENT MANUFACTURER P C R W E L L P L A T E S • Very high level of TiO2 to prevent “cross-talk” between the wells during the qPCR fluorescence testing procedure • Minimized background phosphorescence caused by agglomeration of TiO2 and/or oxidized (stressed) polystyrene • Preservation of polystyrene grade properties • Change control of formulation and manufacturing process • Robust product quality from batch to batch • Developed optimally dispersed, ready-to-use white formulation that maintains adequate signal transmission, as well as minimizing “cross-talk” and background phosphorescence • Optimized the use of general purpose polystyrene (GPPS) for a good balance between melt flow and other physical properties, such as stiffness • Provided comprehensive change control of raw materials and formulation, with a robust manufacturing process and quality control under a third party ISO 13485:2016 certified QMS Mevopur Healthcare Colorants and Formulations – pre-colored solution WHY AVIENT?

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • 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 laws and regulations regarding plastics in jurisdictions where we conduct business; • 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; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including Avient Protective Materials (APM); • An inability to raise or sustain prices for products or services; • Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • Information systems failures and cyberattacks; • Amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; and • Other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation and any recessionary conditions Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Climate change continues to be one of the defining issues of our time, and at Avient, we are dedicated to do our part. They’re willing to change their shopping habits to reduce environmental impact and they care about sustainability and recycling.”

In particular, these include statements relating to future actions; prospective changes in raw material costs, product pricing or product demand; future performance; estimated capital expenditures; results of current and anticipated market conditions and market strategies; sales efforts; expenses; the outcome of contingencies such as legal proceedings and environmental liabilities; and financial results. Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • 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 laws and regulations regarding plastics in jurisdictions where we conduct business; • 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; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including Avient Protective Materials (APM); • An inability to raise or sustain prices for products or services; • Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • Information systems failures and cyberattacks; • Amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; and • Other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation and any recessionary conditions Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Global Compact • Highlights ESG Performance, including ratings, awards, and certifications • Features increased carbon emissions disclosures, including Climate Change Scenario Analysis and Scope 3 emissions data • Outlines Sustainable Supplier Program, designed to enable supplier evaluation & collaboration • Reflects Great Place To Work® culture focused on safety, employee engagement and advancing diversity, equity and inclusion 2022 SUSTAINABILITY REPORT 19 Avient Confidential 20 • Virtual presentation to be held September 20, 2023 • Leadership will be conducting an investor-focused presentation around our sustainable solutions portfolio • Deep dive into how we enable customers to achieve their sustainability goals SUSTAINABILITY DAY 20 …are Growing at Twice the Rate as Conventional Products Sustainably-Branded Products… STAKEHOLDER INFLUENCE DRIVES DEMAND Consumers Are demanding recyclability and eco- conscious products Governments Are mandating changes through legislation, taxes, and regional accords Brand Owners Have committed to ambitious goals to achieve sustainability metrics 21 AP P EN D IX 24 Performance Additives 16% Pigments 12% TiO2 Dyestuffs 2% Polyethylene Nylon Polypropylene Styrenic Block Copolymer Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 2022 pro forma results for the acquisition of Avient Protective Materials RAW MATERIAL BASKET PEER COMPARISONS AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Other Specialty / Note: Avient reflects 2023 estimated revenue of $3,280 and estimated run-rate CAPEX of $110M. 26 3 3 4 4 4 5 5 7 7 9 10 FREE CASH FLOW CONVERSION Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA.

By signing below, you acknowledge that you have read and intend to comply with this Policy: Name (please print) _______________________________________________________ Location _______________________________________________________________ Signature ________________________________________________________________ Date ___________________________________________________________________ DOCUMENT CHANGE AND REVIEW HISTORY Ver. Summary of Changes Date Previous version 09/30/2016 Final Policy rewritten and simplified. 09/01/2021 Reservation of Rights Avient reserves the right, in its sole discretion, to amend, suspend, or terminate this Policy without prior notice to the extent permitted by law. Information Systems Use Policy Information Systems Use Policy Purpose Scope Usage Expectations for Use of Information Systems Prohibited Uses of Information Systems Personal Use Social Media Enforcement and Monitoring Questions and Additional Information Document Change and Review History Appendix A: Definitions

Date of the deed of foundation 8/1. 31 July 2018 8/2. 4 December 2019 Date of change: 2019/12/04 Effective: 2019/12/04 ... 8/3. 24 November 2021 902. Start of legal relationship: 2019/02/27 Date of change: 2019/02/27 Effective: 2019/02/27 ... 3/4 3/5. Start of legal relationship: 2019/05/15 Date of change: 2019/05/15 Effective: 2019/05/15 ...

To ensure the QMS is aligned with our strategy, and taking into account the internal and external issues, we analyze pertinent information in order to determine potential impact on our context and subsequent customer/organizational success. Are revision changes kept for the life of the active material?

In particular, these include statements relating to future actions; prospective changes in raw material costs, product pricing or product demand; future performance; estimated capital expenditures; results of current and anticipated market conditions and market strategies; sales efforts; expenses; the outcome of contingencies such as legal proceedings and environmental liabilities; and financial results. Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • 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 laws and regulations regarding plastics in jurisdictions where we conduct business; • 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; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including Avient Protective Materials (APM); • An inability to raise or sustain prices for products or services; • Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • Information systems failures and cyberattacks; • Amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; and • Other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation and any recessionary conditions Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures.

Keep in mind, though, that increased heat transfer can make the process more sensitive and may require changes in tooling or process conditions.1 Mineral and fiber fillers can change the extent of expansion of a plastic, depending on loading levels and application requirements. Regardless of these suggestions, you need to experiment with your equipment and the polymer to be compounded in order to establish the processing you want.