Sensitive personal information refers to data that reveals an individual’s racial or ethnic origin, political opinions, religious or philosophical beliefs, or trade union membership, genetic data, biometric data, or data concerning health or data concerning a person’s sex life or sexual orientation. A list of third-party suppliers to whom your personal information is transferred is available upon request. Contact details for data protection authorities are available here.

as applicable) 4.2.2 Customer Description 4.2.3 Manufacturer’s Product Code 4.2.4 Manufacturer's Lot Number 4.2.5 Quantity and Units (Example 25 lbs.) 4.2.6 Company Name 4.2.7 Date of Manufacture 4.2.8 Expiration Date (as applicable) 5.0 SUPPORTING DOCUMENTATION 5.1 Certification: Each shipment of product will be accompanied by a Certification that, at the time of shipment, the material conforms to the Product Specifications. 5.1.1 Certification document will include: 5.1.1.1 Customer Part Number 5.1.1.2 Customer Purchase Order Number 5.1.1.3 Customer Material Description 5.1.1.4 Manufacturer's Lot Number 5.1.1.5 Total quantity shipped (with units) 5.1.1.6 Test values (as applicable) 5.1.2 Certification will be sent with each product shipment, addressed to the Customer’s shipping location and/or electronically sent to appropriate Customer contact. 5.1.3 The Certification document may contain test values conducted by NEU on the product for those characteristics listed under certification. 5.2 Safety Data Sheets: A Safety Data Sheet will be made available upon request or may be available on NEU’s website. The SDS is supplied to the shipping location from where the product is ordered. 5.3 Technical Data Sheets: A Technical Data Sheet will be made available on NEU proprietary technologies upon request. 5.4 Sales Order Confirmation: A documented response confirming acceptance of a Customer purchase order. Inspection may include applicable internal systems, calibration programs, laboratory practices, and equipment pertaining to the Customer-specific product. 6.1.1 Adequate prior notice (30 days) must be given, with a proposed agenda. 6.1.2 The scope of the inspection is at the discretion of NEU. 6.1.3 Non-Disclosure Agreement and\or Visitor Confidentiality Agreement is required of Customer. 7.0 SUPPLIER CONTROL and REGULATORY RESPONSIBILTY 7.1 The control of suppliers and regulatory responsibility of the vendors and product supplied by NEU to the Customer are dependent on the specification and ownership of the components used to manufacture the product, as further outlined below. 7.1.1 Raw materials, components and suppliers developed or specified by NEU are controlled and monitored by NEU. 7.1.2 Raw materials, components and suppliers developed or specified by Customer are controlled and monitored by Customer. 7.1.2.1 NEU may survey suppliers specified by Customer on behalf of Customer to satisfy a Customer request for information.

How can a material supplier help with application goals? Material Datasets Available A number of material characterization data sets are available in .udb, moldex 3D, and SIMPOE format. Using CAE to optimize part, tool or process design Leveraging mold filling simulation, data software, and physical simulation capabilities, can help inform your decision-making process.

How can a material supplier help with application goals? Material Datasets Available A number of material characterization data sets are available in .udb, moldex 3D, and SIMPOE format. Using CAE to optimize part, tool or process design Leveraging mold filling simulation, data software, and physical simulation capabilities, can help inform your decision-making process.

1 How to manage Purchase Orders through the Coupa Supplier Portal (CSP) Suppliers Guide For Avient Suppliers The Coupa Supplier Portal (CSP) is a no-cost tool for suppliers that makes working with your clients, such as Avient, easier and smoother. For more information, see the PO status list below Acknowledged At Date when the supplier acknowledged the receipt of the PO, or "None" if not acknowledged. On the Create New data table view page, select Avient from your customer list, and then specify the settings you want to use for your custom view, including filtering conditions, columns to include, and sorting criteria.

Continue fostering our Great Place to Work® culture Strategic ObjectivesStrategic Objectives Long Term Growth Rates Growth DriversGrowth Drivers $340 $455 $790 $1,175 $51 $84 $212 $668 $108 $113 $231 $293 $265 $358 $726 $830 8-12% 10% 8-10% 5% Sustainable Solutions Composites Healthcare Asia/Emerging Regions Profitable GrowthProfitable Growth Great Place to WorkGreat Place to Work 5.4% 11.5% 16.2% 2006 2018 2022 EBITDA Margins $0.14 $2.67 $3.04 2006 2018 2022 2022 data is pro forma for acquisition of Avient Protective Materials and Distribution divestiture TOP-TIER SUSTAINABILITY PERFORMANCE AND RECOGNITION Industry Sustainability Standards 90th percentile 87th ESG Ratings Performance 5 5 Innovation is the lifeblood of a specialty company. 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. Avient 2011 and 2018 valuations reflect trailing 12 months EBITDA at December 31 of the respective years. 28 EV / 2023E EBITDA Historic Multiple 6.5 8.3 9.5 13.8 12.7 12.6 11.3 8.7 18.6 16.5 10.1 10.0 9.7 9.5 9.4 8.7 01 1) 01 8) 02 3) Avient Specialty Other Specialty / SEGMENT DATA U.S. & Canada 40% 37% 18% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Building and END MARKET REVENUE $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) 9% 30 (1) Total company sales and adjusted EBITDA of $3,653M and $592M, respectively, include intercompany sales eliminations and corporate costs 2022 REVENUE | $2 .4 B ILL ION 34% 38% END MARKET REGION 31 34% 21% Building & 1% Energy 2% COLOR, ADDITIVES & INKS 2022 PRO FORMA REVENUE | $1 .3 B ILL ION 52% 35% 32 19% 8%Industrial 16% 9% Defense Building & END MARKET REGION SPECIALTY ENGINEERED MATERIALS 32% 27% 14% Building & 3% 1% Defense 1% (18% of sales) 9% 2022 PROFORMA AVIENT REGIONAL SALES 27% 14% 17% Building & (37% of sales)Transportation 12% Building & US & Canada (40% of sales) 7% 56% 23% 7% Building & 1% LATAM (5% of sales) 3% 33 BY END MARKET Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

¹https://www.nbcnews.com/news/us-news/three-substations-attacked-washington-state-rcna63214  ² https://www.ferc.gov/sites/default/files/2020-04/E-4_10.pdf 

Supplier Code of Conduct Avient Supplier Information Supplier Code of Conduct

Where can I find testing services for my products and those of my suppliers? Avient Supplier Information Supplier Code of Conduct

El Comprador deberá realizar todos los pagos en virtud del presente documento en efectivo o su equivalente de efectivo a valor nominal en los fondos, en el plazo y en el lugar indicados en la factura del Vendedor. Handling of Personal Data. In development of the provisions of Law 1581 of 2012 and other rules that regulate it, which seeks the protection of personal data, the Buyer declares that it knows, accepts, authorizes freely and spontaneously, so that during the term of the contract, the Seller may compile, store, consult, use, share, exchange, transmit and transfer the data of the Buyer and the personal data of the persons who have a relationship with the Buyer and that have been requested by the Seller, for the fulfillment of the purposes of the data protection policies of the Seller.