You should read and internalize our Code of Conduct now and refer to it for guidance when facing new, unclear, or complex issues in your job. Would you feel okay if your actions were reported in the news? New concepts and ideas will be identified for purposes of evaluation and protection, as appropriate, to support the long-term and short-term goals of the Company.

We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise. Develop and implement solutions to end plastic waste while supporting AEPW $1.5B investment in key initiatives. 2030 SUSTAINABILITY TARGETS 20 2021 AVIENT INVESTOR DAY 21 • Investor Day to be held December 9, 2021 in New York, NY • Company will provide updates on its key growth drivers with a deep focus on sustainable solutions Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Healthcare 8–10% Composites / 5G 10% Growth in Asia / LATAM 5% Other (GDP growth) 2–3% Avient 6.5% • Senior leadership team to also present on Clariant MB integration, M&A opportunities and capital allocation priorities PEER COMPARISONS 22 As a specialty formulator, we don’t require significant capital investment, as compared to the base resin raw material suppliers we purchase from. Whether an additional line at an existing manufacturing plant, or a new facility in a growing region, we ramp-up quickly and cost-efficiently. 23 Capex / Revenue 2021E (%) AVIENT IS ASSET LIGHT Avient Specialty Other 2 2 2 2 3 3 3 4 3 4 4 5 5 5 5 5 6 7 27 e nt e nt ( xc l.

We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise. Clariant Masterbatch performance will be included in this year’s report. 2021 Sustainalytics ESG Risk Ranking Newsweek Most Responsible Companies 2016 2017 2018 2019 2020PF VOC Reduction Reduced Energy Use Bio-derived Content Eco-conscious Renewable Energy Applications Recyclability Reduced Material Requirements Lightweighting $275M $325M $355M $410M $560M 13 (1) Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) (2) 2020 is Pro forma to include full year of the Clariant Masterbatch business (2) Revenue from Sustainable Solutions 2016 – 2020 SUSTAINABILITY FOR A BETTER TOMORROW 14 • Revenue from sustainable solutions expected to grow 11% in 2021 as our innovation efforts and collaboration with customers continues to accelerate • Relentless focus on delivering our 2030 sustainability targets to benefit the planet and people of the world while adding value to our customers, communities, associates and shareholders • Investments centered around innovation and global sustainability megatrends o Improving Recyclability – Technologies that allow for increased use of post-consumer recycled (PCR) material o Light-weighting – Composites and CAI applications to reduce weight and material requirements, which minimize energy and carbon emissions o Eco-Conscious – Health and human safety applications as well as Avient’s alternative materials to replace lead, PVC, halogens, BPA and other less eco-friendly options o Avient CycleWorks – New innovation center dedicated to advancing recycling and the circular economy through collaboration with customers and brand owners Enable 100% of products manufactured for packaging applications to be recyclable or reusable. Whether an additional line at an existing manufacturing plant, or a new facility in a growing region, we ramp-up quickly and cost-efficiently. 18 Capex / Revenue 2021E (%) AVIENT IS ASSET LIGHT Avient Specialty Other 2 3 2 2 2 3 3 4 3 3 3 4 4 5 5 5 6 7 7 8 24 t (E xc l.

With new innovative technologies, Avient continues to develop TPEs that bond to a variety of substrates. Startup problems occur during the launch of a new tool or machine. If the mold is used in a different machine, minor adjustments to account for the new machine may be necessary.

AVIENT OVERVIEW OUR VISION: Creating specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world 2023 Financial GuidanceCompany Overview 2022 Pro Forma Revenue By: 9,700 Employees 104 Manufacturing Sites 20,000+ Customers Key Highlights  Premier formulator of specialized and sustainable material solutions  Asset-light business model, with flexibility to adapt to customer needs  Best-in-class technology and service (140+ PhDs / 2,500+ patents)  History of transformation through successful M&A while consistently returning cash to shareholders  Poised for continued future growth in excess of GDP $3.3B Revenue $2.40 $525M Adjusted EBITDA 16.0% Adjusted EBITDA Margins $180M Free Cash Flow 3.0x Net Leverage Over $1B in share buybacks since 2011 Raised dividend for 12 consecutive years, a 16% CAGR since 2011 Geography Segment Industry U.S. & Canada 64% 36% Specialty Engineered Materials Color Additives and Inks 40% 37% 18% 9% 4% 4% Building & Energy Telecom 4 CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 1. 6.5% annualized long term sales growth leveraging sustainable solutions, composites, healthcare and emerging regions 2. We create specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world.

The new material gives an improved rubber-like feel to finished overmolded parts. The new material can be colored and does not need to be pre dried before processing.

Get the look and touch of metal – With grades suitable for metalization and electroplating you can achieve the look and feel of metal FOR CONVERTERS Compete in premium markets – Gravi-Tech material’s luxury aesthetics allow plastics converters to reach new markets by competing against aluminum, zinc, iron, or steel and other alloys.

Our experienced research & development and engineering teams are constantly developing and testing new coating technology to diversify our product offering and meet the specific needs of our customers.

If the simulation fails, parameters can be modified – enter a new material, modify the design, augment manufacturing, etc. – to yield the desired results.

Our products enable the search for new energy reserves and extend the life of fiber optic telecommunication cables.