Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: the ability to successfully integrate acquired businesses into our operations, 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; 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 raise or sustain prices for products or services; 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. Below is a reconciliation of these non-GAAP financial measures to their most directly comparable financial measures calculated and presented in accordance with GAAP. Below is a reconciliation of these non-GAAP financial measures to their most directly comparable financial measures calculated and presented in accordance with GAAP.

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: our ability to realize anticipated savings and operational benefits from the realignment of assets, including the closure of manufacturing facilities; the timing of closings and shifts of production to new facilities related to asset realignments and any unforeseen loss of customers and/or disruptions of service or quality caused by such closings and/or production shifts; separation and severance amounts that differ from original estimates; amounts for non-cash charges related to asset write-offs and accelerated depreciation realignments of property, plant and equipment, that differ from original estimates; our ability to identify and evaluate acquisition targets and consummate acquisitions; the ability to successfully integrate acquired businesses into our operations, 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; the financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability; the speed and extent of an economic recovery, including the recovery of the housing market; 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; an inability to maintain appropriate relations with unions and employees; our ability to continue to pay cash dividends; the amount and timing of repurchases of our common shares, if any; 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. Below is a reconciliation of these non-GAAP financial measures to their most directly comparable measures calculated and presented in accordance with U.S. Below is a reconciliation of non-GAAP financial measures to the most directly comparable measures calculated and presented in accordance with GAAP.

PPI promotes contemporary use of plastics piping for water and gas distribution, sewer and wastewater, oil and gas production, industrial and mining uses, power and communications, duct and irrigation.  Avient currently has twenty-three facilities globally certified to the Corporation’s GMP program and two facilities certified to "ISO 13485, Medical Device - Quality Management Systems - Requirements for Regulatory Purposes." In support of our customer’s Device Master File submission for healthcare materials, Avient develops and maintains U.S.

Medical Grade Colorants and Additives for Wearable Medical Devices Discover more about Avient medical grade colorant and additives for wearable medical devices. Explore the power of polymer solutions for hygiene & medical nonwovens

Medical Grade Colorants and Additives for Wearable Medical Devices Discover more about Avient medical grade colorant and additives for wearable medical devices. Explore the power of polymer solutions for hygiene & medical nonwovens

Antimicrobials for Personal Care Devices Diminished microbes in patient mobility devices Overview of how Avient serves wire & cable customers, highlighting both power and data cables technologies

Learn more about composite materials for power transmission and distribution products Thermoplastic Elastomers in Medical Devices - White Paper Safety factors, barrier properties and applications of TPEs in medical devices

MAJOR TELECOM COMPANY B A S E S T A T I O N P H A S E S H I F T E R • Required customized Dk / Df values tailored to a unique antenna design • Quick qualification of designs and short lead times were critical to support the rapid rollout of new 5G networks • Met required Dk / Df properties using two customized solutions offering Dk 3.6, Df 0.0006 and Dk 3.1, Df 0.0007 • Accelerated speed to market due to thermoplastics’ design flexibility Custom Edgetek™ Formulations KEY REQUIREMENTS WHY AVIENT?

Current Directorships: WESCO International, Inc.; American Electric Power Company, Inc.; and Interface Biologics Inc. Van Hulle(3) 19,757 6,938(5) 26,695 23 Directors and executive officers as a group 829,889 220,459(5) 1,050,348 (1) Except as otherwise stated in the following notes, beneficial ownership of the shares held by each individual consists of sole voting power and sole investment power, or of voting power and investment power that is shared with the spouse or other immediate family member of the individual or with certain trusts. 2) As of December 31, 2017, based upon information contained in an amendment to the Report on Schedule 13G filed with the SEC by The Vanguard Group, Inc., which reported that The Vanguard Group, Inc., together with certain of its affiliates, had sole voting power with respect to 156,839 of these shares, sole dispositive power with respect to 6,918,635 of these shares, shared voting power with respect to 10,249 of these shares and shared dispositive power with respect to 160,223 of these shares.

Mevopur™ Healthcare Colorants and Formulations and Mevopur™ Healthcare Functional Additives for Bormed™ Resins Mevopur™ Healthcare Colorants and Formulations and Mevopur™ Healthcare Functional Additives help medical device, diagnostics and pharmaceutical packaging sectors meet the growing challenges of product consistency, compliance and reliability. It is the responsibility of the medical device manufacturer and the person placing the medical device on the market to ensure compliance of the medical device with all applicable laws and regulations, including the suitability of all raw materials and components used for its manufacture. Please be aware that there are certain applications Avient’s Mevopur products have not been designed for, nor are they promoted or intended for use in: including, but not limited to long-term or permanent implants, birth control devices, or plastic surgery.