Caption: Barricade™ crosslinkable elastomers bridge the gap between TPEs and silicone to deliver high-temperature compression set performance at lighter weight Barrier technologies that preserve the shelf-life and quality of food, beverages, medicine and other perishable goods through high-performance materials that require less plastic EDITORS: For a high-resolution image, please click here: Barricade™ Crosslinkable Elastomers

High High High

Unless otherwise stated, Adjusted Operating Income, Adjusted EBITDA and Adjusted EPS figures included in this presentation exclude the impact of special items as defined in our quarterly earnings releases. CO-CREATION. • ColorWorks innovation centers are specially designed to foster imagination and enable creative exploration of innovative solutions • Focus on customers’ sustainability initiatives through recyclability and post-consumer recycled materials for packaging applications • Supports 8-12% long-term revenue growth expectations across our sustainable solutions portfolio 8 2020 Pro forma $870 $69 Sustainable Solutions 66 37% 26 Healthcare 29 20% 7 Composites 12 36% 6 Growth in Asia / LATAM 47 39% 11 Other 190 48% 22 Sub-total $1,214 40% $141 COVID Response Applications (15) (8) FX Impact 36 4 Synergies 11 Incentives, Travel, Other Employee Costs (26) 2021 Actual $1,235 42% $122 Q2 2021 ORGANIC SALES AND OPERATING INCOME (TOTAL COMPANY) 9 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Sales Growth Rate Adjusted Operating Income$ millions (1) 10 Q2 2020PF Q2 2021 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (2) Financial information is presented on a constant currency basis (1,2) (44% of total revenue) (56% of total revenue) Q2 END MARKET SALES PERFORMANCE +26% +38% +46% +103% +51% +9% +7% +67% Energy Telecom Building & Construction Transportation Industrial Healthcare Packaging Consumer Q2 YEAR-OVER-YEAR EBITDA BRIDGE Q2 2020 Pro forma $ 106 Demand 69 11 Adjusted EBITDA$ millions • Demand impact driven by growth in sustainable solutions and consumer products • Price increases more than offset raw material and supply chain impacts (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (1) CAI: Price / Mix 40 Inflation (32) SEM: Price / Mix 23 Inflation (18) Distribution: Price / Mix 81 Inflation (77) Net Price Benefit 17 Supply Chain Disruptions (14) COVID Response Applications (8) Synergies 11 Incentives, Travel, FX, Other (22) Q2 2021 Actual $ 159     Q1 2021 Actual $ 161 CAI: Price / Mix 32 Inflation (22) SEM: Price / Mix 15 Inflation (9) Distribution: Price / Mix 50 Inflation (48) Net Price Benefit 18 Supply Chain Disruptions (12) Demand / Seasonality (6) Other (2) Q2 2021 Actual $ 15912 Adjusted EBITDA$ millions • Price increases more than offset raw material and freight inflation impacts • Demand impact driven by Q2 seasonality for the business Q1 TO Q2 SEQUENTIAL EBITDA BRIDGE     Q 3 AN D FU LL Y EA R 2021 O U TLO O K $74 $98 2020 2021E $0.46 $0.68 2020 2021E ORGANIC GROWTH PROJECTIONS – Q3 (TOTAL COMPANY) 14 Sales Adjusted Operating Income $925 $1,150 2020 2021E + 24% Adjusted EPS + 32% + 48% (in millions) (in millions) FULL YEAR GUIDANCE INCREASED 15 Sales Adj. 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 Formulators Other Chemical/Specialty Companies 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 A vi en t K W R P P G A V Y R P M F U L G C P A L B H X L E C L IF F F M C B N R A S H S C L E M N U N V R K R A C E H U N Median: 11.1xMedian: 14.6x SUMMARY: WHY INVEST IN AVIENT?

In addition to materials formulation, we're collaborating with manufacturers in the early product development stages with predictive analysis and industrial design capabilities to help them create highly engineered, high-performing products." plans to present additional details about composite innovation as one of several high-growth focus areas that underpin the company's expectation of delivering double digit EPS growth in 2018 and beyond. Comptek, SilCoTec, Gordon Composites and Polystrand, including whether such businesses will be accretive, retain the management teams of acquired businesses, and retain relationships with customers of acquired businesses; 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; our ability to achieve new business gains; the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; changes in polymer consumption growth rates and laws and regulations regarding the disposal of plastic in jurisdictions where we conduct business; changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online; 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; an inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions and employee productivity goals; an inability to raise or sustain prices for products or services; our ability to continue to pay cash dividends, including at the increasing rate, which will be subject to, among other factors, market conditions, our cash flow and cash requirements and restrictions contained in any of our debt agreements; and other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation.

Impact High temperature Specialty TPE formulation offering excellent compression set at high temperatures for use in a wide range of consumer and industrial applications

Unless otherwise stated, Adjusted Operating Income, Adjusted EBITDA and Adjusted EPS figures included in this presentation exclude the impact of special items as defined in our quarterly earnings releases. We will do so through our investments and focus on sustainable solutions for high-growth markets, including healthcare, consumer, packaging and composites. We leverage a high-touch, collaborative customer service model, driving rapid customer response and customization.

CRTM™ (continuous resin transfer molding) panels are high quality composite sandwich panels with tailored, multi-axial fiber reinforcements, high-fiber volume contents and very low void content. CRTM panels are specifically designed for applications needing a high stiffness-to-weight ratio. This process yields high performance, constant cross-section composite structures that offer superior quality and are more efficient than hand lay-up processes.

To download a high-resolution image, please click here: FOR MEDIA USE ONLY   These high-performance processing aids can enhance production efficiencies during PVDF extrusion. They can also minimize defects and prevent melt fracture (sharkskin) to provide a high-quality surface in the final product.

SPORTING GOODS BRAND I N J E C T I O N M O L D E D B A S E B A L L B A T • Meet BBCOR safety standard for coefficient of restitution • High stiffness and toughness to hold up to ball impacts without excessive vibration • Variable feel, sound, and “sweet spot” for user preference • Provided a unique solution allowing the bat to be manufactured with injection molding instead of thermoset layup process to lower production cost • Designed unique two-part barrel and handle construction which enables tailoring weight and balance performance to player Complēt™ Long Carbon Fiber ETPU Composite KEY REQUIREMENTS WHY AVIENT? All Rights Reserved. https://www.avient.com/products/engineered-polymer-formulations/high-temperature-polymer-formulations/compl%C4%93t-long-fiber-reinforced-structural-thermoplastics

THERMOGRAVIMETRIC ANALYSIS REDUCED REGULATORY RISK With the increasing use of rPET, accumulation of AA scavengers can become an issue, particularly with ATA-based products, where there is a high risk of exceeding the regulatory migration limit. CHOOSE COLORMATRIX AANCHOR FOR SUSTAINABLE AND HIGH-QUALITY PET PACKAGING ColorMatrix AAnchor is an innovative solution for the polymer industry, offering a comprehensive solution to enhance the recyclability, quality, and regulatory compliance of PET packaging. By incorporating ColorMatrix AAnchor, brands are supported to achieve their sustainability goals, reduce environmental impact, and deliver superior products to consumers.