plastics) stigmatized Rising expectations for rapid innovation and displacement of older, heavily carbon- intensive designs and manufacturing processes NDC countries expected to innovate and seek rapid minimization of customers' scope 3 emissions Increased concern from stakeholders for not addressing climate change globally or for the chemicals sector Acute & Chronic Risk L Possible direct damage to fixed assets and logistics disruptions in both our value chain and operations More frequent and intense weather events and changing preciptation patterns are likely to damage manufaturing faciliites, disrupt logistics and sourcing activities, and negatively affect employee health and communities where we operate More frequent and intense weather events and changing preciptation patterns are likely to affect the performance of grids and thermal plants while pushing up demand for cooling, damage fixed assets, disrupt logistics and sourcing activities, and negatively affect employee health and communities where we operate IMPACT DRIVER & TIME HORIZON NET ZERO FUTURE PLEDGING PROGRESS STEADFAST POLICY Resource Efficiency Opportunity S M L More efficient production and distribution processes, reduced natural resource usage, continued use of recycling, and inclusion of recycled materials in our products such as reSoundTM R, ColorMatrix™ Capture™ Oxygen Scavenger, among others will contribute to increasing product revenues and reduced operating costs Resource efficiency efforts supported by capital allocation in NDC countries is more likely and may accelerate a path toward maximizing ROI and reducing operating costs Less regulatory and pressure to incentivize may cause gains from efforts to lag Energy Source Opportunity M L Use of greater external financing options, such as operating lease arrangements or energy performance shared savings contracts, to source lower emission-energy and new technologies, such as carbon capture, utilization & storage (CCUS), in our operations may reduce operating costs and maximize returns on investment Use of lower emission-sources of energy in operations will lower operating costs and contribute toward reductions of our scope 1 and 2 emissions and product carbon intensities Use of renewable energy, increased efficiency, and electrification initiatives will lower operating costs and contribute toward reductions of our scope 1 and 2 emissions and product carbon intensities. Additional renewable energy will still be needed in Europe to offset the related grid emissions as will we also need to identify similar outlets in the Americas and Asia Pacific. · By 2030, Avient will obtain directly or contract for 60% of its electricity demand from renewable sources and achieve 100% renewable energy by 2050. · We have established a product carbon footprint team that focuses on providing product-specific carbon footprint metrics based on where and how the product is manufactured. · Our position in enabling the use of recycled materials, bio-renewable solutions, renewable energy, or energy reductions requires manufacturing in a manner and light weighting of transportation vehicles so that they contribute to more efficient value chains and accelerated lower-carbon transitions for our customers. · In 2021, we delivered $915 million in sustainable solutions sales, as defined using critieria aligned with the FTC 2012 Guide for the Use of Environmental Marketing Claims. · We are evaluating our Asia Pacific go-to-market strategy, especially in China. Our investments are focusing on infrastructure, innovation, education and clean-up initiatives. · We have organized our portfolio to enable our customers to solve complex sustainability changes, from enabling the use of more recycled content, formulating with bio- polymers, sustainable infrastructure, human health & safety, lightweighting, reducing volatile organic compounds, reducing energy usage and offering eco-conscious solutions. · Physical climate-related risk assessments over our critical manufacturing sites, suppliers, and logistics route will be helpful in making corporate real estate and procurement choices.

Polyone de Mexico Manufacturing - TS 85585 Certificate of Registration QUALITY MANAGEMENT SYSTEM - IATF 16949:2016 This is to certify that: Polyone de Mexico Manufacturing S. de R.L. de C.V. CertificateNumber=TS+85585&ReIssueDate=11%2f07%2f2018&Template=inc Polyone de Mexico Manufacturing S. de R.L. de C.V. Gama #650 Parque Industrial Santa Maria Ramos Azipe Coahuila 25900 Mexico The Manufacture of Thermoplastic Compounds.

Binh Duong, Vietnam (1) Facility is not included in manufacturing plants total as it is also included as part of another segment. (2) Facility is not included in manufacturing plants total as it is a design center/lab. (3) There are two manufacturing plants located in Shanghai, China. To ensure mutually beneficial and productive relationships, Avient also asks all suppliers to adhere to our safety procedures and security policies within our manufacturing plants, distribution centers, as well as our sales, regional, or corporate offices. On a daily basis, plant personnel monitor our facilities via routine daily rounds.

Binh Duong, Vietnam (1) Facility is not included in manufacturing plants total as it is also included as part of another segment. (2) Facility is not included in manufacturing plants total as it is a design center/lab. (3) There are two manufacturing plants located in Shanghai, China. To ensure mutually beneficial and productive relationships, Avient also asks all suppliers to adhere to our safety procedures and security policies within our manufacturing plants, distribution centers, as well as our sales, regional, or corporate offices. On a daily basis, plant personnel monitor our facilities via routine daily rounds.

Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; costs incurred directly in relation to acquisitions or divestitures; employee separation costs resulting from personnel reduction programs, plant realignment costs, executive separation agreements; asset impairments; settlement gains or losses and mark-to-market adjustments associated with gains and losses on pension and other post-retirement benefit plans; environmental remediation costs, fines, penalties and related insurance recoveries related to facilities no longer owned or closed in prior years; gains and losses on the divestiture of operating businesses, gains and losses on facility or property sales or disposals; results of litigation, fines or penalties, where such litigation (or action relating to the fines or penalties) arose prior to the commencement of the performance period; one-time, non-recurring items; and the effect of changes in accounting principles or other such laws or provisions affecting reported results. Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; costs incurred directly in relation to acquisitions or divestitures; employee separation costs resulting from personnel reduction programs, plant realignment costs, executive separation agreements; asset impairments; settlement gains or losses and mark-to-market adjustments associated with gains and losses on pension and other post-retirement benefit plans; environmental remediation costs, fines, penalties and related insurance recoveries related to facilities no longer owned or closed in prior years; gains and losses on the divestiture of operating businesses, gains and losses on facility or property sales or disposals; results of litigation, fines or penalties, where such litigation (or action relating to the fines or penalties) arose prior to the commencement of the performance period; one-time, non-recurring items; and the effect of changes in accounting principles or other such laws or provisions affecting reported results. Proceeds from plant closures

Cibodas Kecamatan Cibodas Tangerang, Banten 15138 Indonesia Activity: Administration, Site management, Manufacture, Laboratory, Procurement, Maintenance, Infrastructure, Warehouse, Transport and Waste Water Treatment Activity: Administration, Site management (EHS), Manufacture and Infrastructure, Laboratory (QC and Technical Development), Maintenance, Warehouse and Transport, Demand Inventory Planning, Call-off, Waste Water Treatment Plant Facility: Avient Colorants Ireland Ltd. Activity: Administration, Site management, Manufacture, Laboratory, Procurement, Maintenance, Infrastructure, Warehouse and Transport Activity: Administration, Site management, Manufacture, Laboratory, Procurement, Maintenance, Infrastructure, Warehouse and Transport Facility: Avient Colorants USA LLC 85 Industrial Park Holden, MA 01520 U.S.A. No 88 Lane 4377 Jindu Road Minhang District Shanghai, Shanghai 201108 People's Republic of China Activity: Development and manufacturing of Colorants products (including additive Masterbatch) Activity: Development and manufacturing of Masterbatch products (including additive Masterbatch)

OnColor™ Naturals Colorants PRODUCT DESCRIPTION OnColor™ Naturals is a range of colorants formulated with natural pigments derived from plants, flowers, roots and minerals.

Phan Thong, Thailand (18 Manufacturing Plants) 23. Pogliano, Italy (84 Manufacturing Plants) 29. d) There are two manufacturing plants located in Shanghai, China.

Elastomers Barrier Technologies Additive Manufacturing Adv. Even more, our manufacturing capabilities are flexible and easily adaptable to changing customer needs. Whether an additional line at an existing manufacturing plant, or a new facility in a growing region, we ramp-up quickly and cost-efficiently.

AVIENT: WHO WE ARE 38 21 9 34 • U.S. and Canada • Latin America • Europe, Middle East & Africa • Asia 25,000+ CUSTOMERS Headquartered in Avon Lake, OH (Cleveland) 8,700+ employees 100+ manufacturing plants Key Financial Data 2022E Sales $5.1 billion 2022E EBITDA $635 million 2022E EPS $3.50 >70% ARE CUSTOMIZED SOLUTIONS TO UNIQUE SPECIFICATIONS of sales 3 WHO WE ARE – VISION, STRATEGY, CULTURE 4 Avient Corporation (NYSE: AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Even more, our manufacturing capabilities are flexible and easily adaptable to changing customer needs. Whether an additional line at an existing manufacturing plant, or a new facility in a growing region, we ramp-up quickly and cost-efficiently. 43 Capex / Revenue 2022E (%) AVIENT IS ASSET LIGHT Avient Specialty Formulators Other Chemical/Specialty Companies 2 3 2 2 2 3 4 3 3 5 5 7 7 8 11 Av ie nt Av ie nt P F FU L KW R PP G R PM AV Y FM C H U N H XL EC L EM N C E AS H SC L Source: Peer data per Bloomberg market data as of April 21, 2022.