Executive Vice President and CFO, will provide insights and commentary on the company's growth expectations for the first quarter, strong financial position, as well as the status of the previously announced Clariant Masterbatch acquisition.  As such, and given recent inbound investor inquiries regarding current market conditions and the Clariant transaction, we are going to host this call Friday to discuss these topics. the time required to consummate the acquisition of Clariant's color and additive masterbatch business; the satisfaction or waiver of conditions in the purchase agreements; any material adverse changes in Clariant's color and additive masterbatch business; the ability to obtain required regulatory or other third-party approvals and consents and otherwise consummate the proposed acquisition of Clariant's color and additive masterbatch business; our ability to achieve the strategic and other objectives relating to the proposed acquisition of Clariant's color and additive masterbatch business, including any expected synergies; our ability to successfully integrate Clariant's color and additive masterbatch business and achieve the expected results of the acquisition of Clariant's color and additive masterbatch business, including, without limitation, the acquisition being accretive; 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; 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 plastics 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 raise or sustain prices for products or services; an ability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to acquisitions and integration, working capital reductions, costs reductions and employee productivity goals; information systems failures and cyberattacks; 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.

Polyketone is naturally a burnt orange color and is known to be more challenging to color. Scratch and mar performance is average but not as good as some engineered nylon 6 or 66 resins. These can be colored at the press or with pre-color.

Blue jean stain resistant TPEs can now provide an alternative solution to silicone when designing white or light-colored cases. Extra colors for your phone case designs White and light-colored TPE phone cases can be added to your color palette. Designs that come to life faster Get your white or light-colored phone case designs into the hands of consumers faster.

Color, Additives and Inks segment.  will serve as President of Color, Additives and Inks, for the Senior Vice President, Chief Commercial Officer, will serve as President of Color, Additives and Inks, for the

Nymax™ REC recycled nylon materials feature standard and custom-formulated nylon 66 and nylon 6 grades that contain post-industrial recycled (PIR) content and post-consumer recycled (PCR) content, supporting the circular economy.  Nylon 6 and Nylon 66

Colorant Chromatics™ PSU, PES and PPSU Masterbatches Colors for High-Temperature Applications Colorant Chromatics™ PSU/PES/PPSU colorants are designed to color polysulfone (PSU), polyethersulfone (PES), and polyphenylsulfone (PPSU) resins used in high-temperature injection molding and extrusion applications. KEY CHARACTERISTICS • Consistent coloring and improved homogenization with the polymer for more efficient processing and waste reduction • Opaque PSU/PES/PPSU masterbatches available with shorter lead times in a range of readily available standard colors • Minimum order quantities as low as 5kg (10lbs) for improved inventory control • Robust colorant formulations mean zero disruption to existing molding processes, allowing manufacturers to bring products to market faster and without investing in new machinery PRODUCT BULLETIN 1.844.4AVIENT www.avient.com Product Code Color LDR* Pantone No.** 650.00 Black 10% 433C 650.01 Brown 10% 7615C 650.02 Red 10% 186C 650.03 Orange 5% 1495C 650.04 Yellow 10% 142C 650.05 Green 10% 2248C 650.06 Blue 10% 278C 650.07 Violet 20% 2073C 650.08 Grey 10% Cool Gray 7C 650.09 White 10% RAL9010 PPSU RESINS Product Code Color LDR* Pantone No.** 660.00 Black 6% Black 6C 660.01 Brown 6% 7582C 660.02 Red 8% 7620C 660.03 Orange 6% 1505C 660.04 Yellow 6% 124C 660.05 Green 6% 348C 660.06 Blue 6% 660C 660.07 Violet 15% 7664C 660.08 Grey 6% Cool Gray 8C 660.09 White 6% RAL9010 PSU RESINS Product Code Color RAL No.* S837.0 Black 9005 S837.1 Brown 8011 S837.2 Red 3002 S837.3 Orange 2004 S837.4 Light Yellow 1016 S837.5 Green 6032 S837.6 Blue 5015 S837.7 Violet 4005 S837.8 Grey 7037 S837.9 White 9016 PES RESINS Copyright © 2021, Avient Corporation. Color specifications are controlled using the L,a,b color system.

CLEVELAND – October 25, 2021 – Avient today introduced its Edgetek™ Toughened polyphthalamide (PPA) formulations, offering improved heat performance and low moisture absorption versus nylon 66 (PA66) for demanding applications.

GF NYLON 6/6 WHITE UV WHITE PE - 2% PP FR 8-6 LMS-1000

There are various types of polyamides, such as Nylon 6, Nylon 66, Nylon 12, Nylon 6, 12 and their copolymers. Table 2 summerizes the data of different polyamide systems; polyamide 6, polyamide 66, glass filled, fiber reinforced , impact modified and heat stabilized. Page 9 of 11 Zytel 70G33L Figure 6.

The Company acquired the Clariant Color business on July 1, 2020. To provide comparable financial results, Avient references “pro forma” financial metrics, which include the business results of Clariant Color for the entirety of 2020. White House Administration GOVERNMENT INFLUENCE CREATES OPPORTUNITIES Avient Corporation 32 175 Countries support the UN Plastics Treaty to help manage plastics pollution £210 U.K. tax per tonne on products containing less than 30% recycle content (U.K.