Operating Income $3,783 $4,300 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Previous Guidance Current Guidance $3,783 $4,650 $308 $410 $308 $430 $1.93 $2.80 $1.93 $3.00 (1) (1)(1) (1)(1) (1) $442 $457 $580 $1.74 $1.93 $3.00 FULL YEAR 2019 – 2021 ORGANIC GROWTH 16 Sales Adjusted EBITDA $3,981 $3,783 $4,650 + 17% (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (1)(1) + 31% + 72% ($ in millions) 2021E Adjusted EBITDA 580$ Free Cash Flow 280$ Total Debt 1,860 Less: Cash (755) Net Debt 1,105$ 2021E Net Debt / Adjusted EBITDA 1.9x 17 BALANCE SHEET • Acquisition of Magna Colours completed on July 1 – expands sustainable solutions portfolio through water-based inks technology • Deleveraging to 1.9x net debt to adjusted EBITDA by the end of 2021 • Driven by record adjusted EBITDA performance and strong free cash flow generation from asset light business • Future cash deployment: M&A, opportunistic share repurchases and balance sheet / continued leverage reduction 3.5x 2.7x 1.9x Net Debt / Adjusted EBITDA (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition SUSTAINABILITY FOR A BETTER TOMORROW • Revenue from sustainable solutions expected to grow 14% in 2021 as our innovation efforts and collaboration with customers continues to accelerate • Investments centered around innovation and global sustainability megatrends o Enabling a circular economy – Technologies that allow for increased use of post-consumer recycled (PCR) material and improve recyclability of plastics 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 2016 2017 2018 2019 2020PF** Bio-polymers Reduced Energy Use Human Health & Safety Sustainable Infrastructure VOC Reduction Recycle Solutions Eco-Conscious Lightweighting Revenue From Sustainable Solutions* 2016-2020 $405M $455M *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Masterbatch business $340M $550M $790M 19 Key Updates • Includes Clariant Masterbatch performance • Increases disclosures and ESG data • Provides performance updates on 2030 Sustainability Goals • Commits to operational carbon neutrality in 2050 and 100% renewable energy by 2050 (RE 100) • Announces Avient’s participation in U.N. Enable 100% of products manufactured for packaging applications to be recyclable or reusable. With the Clariant Masterbatch acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets, with increased geographic diversification and a more specialized portfolio that can significantly expand EBITDA margins. 25 Avient reflects 2021 estimated EBITDA of $580M OUR VALUATION VERSUS PEERS Avient Specialty Other 9.5 18.5 15.1 15.1 14.0 11.0 10.4 29.5 28.2 23.9 18.7 12.4 12.2 11.1 9.3 9.2 9.2 7.6 7.6 6.0 en t Median: 11.1xMedian: 14.6x SUMMARY: WHY INVEST IN AVIENT?

Recycle Solutions Challenges in rPET Recycling Solutions for rPET Recycling

Recycle Solutions Challenges in rPET Recycling Solutions for rPET Recycling

Recycle Solutions Challenges in rPET Recycling Solutions for rPET Recycling

Super Tough Nylon Formulations Added to Avient’s Recycled Content Portfolio   Enhancing Recyclability: Increasing recycled content in polymers and enhancing recyclability through intelligent design to develop innovative approaches to brand differentiation and meet consumer demands for eco-conscious products   Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy

Recycling Enhancer O₂ Scavenging Additive Recycle Solutions EPBP bottle-to-bottle recyclability accredited

Recycle Solutions Gravi-Tech™ REC Recycled Formulations Remafin™ Fiber Colorants for PP

Based on polymers such as polypropylene (PP), the new formulations also include a natural filler made from renewable plant sources that would otherwise go to waste. reSound™ R recycled content thermoplastic elastomers (TPEs): Developed to help brand owners create more sustainable end-user products, these formulations utilize 9 to 83 percent recycled content from post-consumer recycled (PCR) and post-industrial recycled (PIR) sources. Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy

Avient’s new reSound™ REC thermoplastic elastomers (TPEs) incorporate recycled content from polyvinyl butyral (PVB) recycled from broken vehicle windshields and laminated architectural glass to support a circular economy. They can be injection molded or overmolded onto polypropylene (PP). Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy

NEW Cesa™ Unify™ A4R - This latest addition to the Additives for Recycling portfolio of solutions is a polyolefin compatibilizer developed to enhance and support the use of recycled polyolefins. It helps bring incompatible polymers, such as PP and PE, together by forming them into a homogenous polymer mixture that increases mechanical properties based on polymer modification (link to full press release above). Unique technologies  that  improve  the  recyclability  of  products  and  enable  recycled content to be incorporated, thus advancing a more circular economy