The COVID-19 pandemic affecting the global community has had and may continue to have a material adverse effect on our business, results of operations, financial condition and/or cash flows, and the nature and extent of the impact over time remain highly uncertain. The impact over time will depend on future developments that are beyond our control, including the duration of the pandemic, the continued severity of the virus, resurgences and emergence of variants of the virus, the efficacy and availability or uptake of vaccines and related drugs, and the actions that may be taken in response to COVID-19, such as vaccine mandates, manufacturing restrictions, labor policies, and travel limitations. The longer the pandemic’s duration, the greater the potential impact on our business and the more heightened the risk of a continuing material adverse effect on our company, business strategies and initiatives. •Business and operations risks: We continue to monitor COVID-19 guidance and requirements, to determine whether we will need to modify our business practices or take actions as may be required by government authorities or that we determine are in the best interests of our stakeholders, including our continuing focus on the safety and protection of our workforce. If there are restrictions on or disruptions to our business practices, we may be unable to perform fully on our contracts and our operational costs may increase. The COVID-19 pandemic has resulted in increased operational challenges, which have included, and may in the future include, manufacturing site shutdowns and workplace disruptions. We may also face challenges in restoring our production levels if and when COVID-19 abates if we are unable to reinstate our workforce at the levels needed or if our suppliers experience disruptions that impact their ability to provide goods or services to us. As a result of COVID-19 and its negative impact on the aerospace and commercial transportation markets, the possibility exists that a corresponding sustained impact to our operations, financial results and market capitalization may require material impairments of our assets, including, but not limited to, goodwill and other intangible assets, long-lived assets, and right-of-use assets. •Customer risks: We have limited visibility into future demand due to the disruptions resulting from COVID-19. The significant decrease in air travel, resulting from the COVID-19 pandemic and the measures that governments and private organizations worldwide have implemented in an attempt to contain its spread, has adversely affected, and may continue to adversely affect, airlines and aircraft manufacturers and their respective demand for our and our customers’ products and services. Aircraft manufacturers have reduced, and may continue to reduce, production rates due to fewer expected aircraft deliveries and, as a result, demand for products in the OEM market has significantly decreased. Several of our aerospace customers previously suspended operations at certain production sites, reduced operations and production rates, and/or took cost-cutting actions, including, but not limited to, General Electric Company, Raytheon Technologies Corporation and The Boeing Company, which represented approximately 13%, 9%, and 5%, respectively, of our third-party sales in 2021. Due to reduced air traffic and flight cycles, spares and aftermarket demand has declined and could remain low until air travel levels return. The decrease in domestic and international air travel due to the pandemic has adversely affected demand for narrow-body and wide-body aircraft, respectively. While domestic air travel has increased during the second half of 2021, international travel has not yet begun to recover and the commercial wide-body aircraft market may take longer to recover. In addition, several of our commercial transportation customers have encountered, and may continue to encounter, challenges in their ability to increase production rates to meet demand due to supply chain constraints stemming from the pandemic. Due to the foregoing factors and other cost-cutting measures by our customers, we are experiencing, and expect to continue experiencing, lower demand and volume for our products. In addition, the ongoing COVID-19 pandemic may negatively impact customer contract negotiations, including the ability to negotiate acceptable terms in contract renewal negotiations and our ability to obtain new customers. Ultimately, the demand for our products is driven by the demand for transportation and travel within and between various countries. •Market, liquidity and credit risks: Financial market dynamics and volatility due to COVID-19 could pose heightened risks to our liquidity, including those discussed below in “—Risks Related to Liquidity and Capital Resources.” If the COVID-19 pandemic continues for a prolonged period, it could adversely affect our financial condition, including with respect to satisfying both required and voluntary pension funding requirements, could result in potential increases in net debt or reductions in EBITDA, and could otherwise negatively affect our ability to achieve our strategic objectives. If the foregoing or other factors negatively impact our ability to comply with the financial covenant in our Five-Year Revolving Credit Agreement (the “Credit Agreement”), our ability to draw under the Credit Agreement would be adversely affected. Conditions in the financial and credit markets may also limit the availability of funding or increase the cost of funding or our ability to refinance certain portions of our indebtedness. The COVID-19 pandemic may also exacerbate other risks disclosed herein, including, but not limited to, risks related to global economic conditions, competition, loss of customers, costs of supplies, supply chain disruptions, manufacturing difficulties and disruptions, investment returns, our credit profile, our credit ratings, and interest rates. We expect that the longer the period of disruption from COVID-19 continues, the more material the adverse impact will be on our business operations, financial performance, results of operations and/or cash flows.