Percentage of cost of goods sold (percent)

  
Included in annual operating expenses are the recurring costs of managing hazardous substances and environmental programs. These costs are estimated to be less than 1% of Cost of goods sold.Indemnified Matters. The Separation and Distribution Agreement, dated October 31, 2016, that the Company entered into with Alcoa Corporation in connection with its separation from Alcoa Corporation, provides for cross-indemnities between the Company and Alcoa Corporation for claims subject to indemnification. The Separation and Distribution Agreement, dated March 31, 2020, that the Company entered into with Arconic Corporation in connection with its separation from Arconic Corporation, provides for cross-indemnities between the Company and Arconic Corporation for claims subject to indemnification. Among other claims that are covered by these indemnities, Arconic Corporation indemnifies the Company (f/k/a Arconic Inc. and f/k/a Alcoa Inc.) for all potential liabilities associated with the fire that occurred at the Grenfell Tower in London, U.K. on June 14, 2017, including the following legal proceedings, as updated from the Form 10-K: United Kingdom Litigation (various claims on behalf of survivors and estates of decedents). The suits are stayed. A case management conference was held during the week of April 26, 2022.Behrens et al. v. Arconic Inc. et al. (various claims on behalf of survivors and estates of decedents). On September 16, 2020, the court dismissed the U.S. case, determining that the U.K. is the appropriate jurisdiction for the case. Plaintiffs are appealing. Oral argument is scheduled for June 6, 2022.With respect to the Howard v. Arconic Inc. et al. (securities law related claims) and Raul v. Albaugh, et al. (derivative related claim) proceedings, the regulatory investigations and the stockholder demands specified in the Form 10-K, there are no updates.Lehman Brothers International (Europe) (“LBIE”) Proceeding. Lehman Brothers International (Europe) (“LBIE”) Proceeding. On June 26, 2020, LBIE filed formal proceedings against two Firth Rixson entities (“Firth”) in the High Court of Justice, Business and Property Courts of England and Wales. The proceedings relate to interest rate swap transactions that Firth entered into with LBIE in 2007 to 2008. In 2008, LBIE commenced insolvency proceedings, an event of default under the agreements, rendering LBIE unable to meet its obligations under the swaps and suspending Firth’s payment obligations. In the court proceedings, LBIE seeks a declaration that Firth has a contractual obligation to pay the amounts owing to LBIE under the agreements upon its emergence from insolvency proceedings which is expected to occur by 2023, which LBIE claims to be approximately $64, plus applicable interest. Firth will continue to maintain its position that multiple events of default under the agreements related to LBIE’s insolvency proceeding cannot be cured or continue indefinitely, which the Company believes are meritorious defenses. A virtual hearing in this matter occurred on January 13 and 14, 2021 in London, England, and a ruling has yet to be issued to date. Given the importance of the case for LBIE and Firth, it is expected that irrespective of the outcome of the most recent hearing, the case will be appealed and any requirement for the parties to pay amounts under the agreements will be stayed. An appeal of the case could continue into 2023. The Company intends to vigorously defend against these claims.OtherIn addition to the matters discussed above, various other lawsuits, claims, and proceedings have been or may be instituted or asserted against the Company, including those pertaining to environmental, product liability, safety and health, employment, tax and antitrust matters. While the amounts claimed in these other matters may be substantial, the ultimate liability cannot currently be determined because of the considerable uncertainties that exist. Therefore, it is possible that the Company’s liquidity or results of operations in a period could be materially affected by one or more of these other matters. However, based on facts currently available, management believes that the disposition of these other matters that are pending or asserted will not have a material adverse effect, individually or in the aggregate, on the results of operations, financial position or cash flows of the Company.CommitmentsGuaranteesAt March 31, 2022, Howmet had outstanding bank guarantees related to tax matters, outstanding debt, workers’ compensation, environmental obligations, energy contracts, and customs duties, among others. The total amount committed under these guarantees, which expire at various dates between 2022 and 2040, was $15 at March 31, 2022.Pursuant to the Separation and Distribution Agreement, dated as of October 31, 2016, between Howmet and Alcoa Corporation, Howmet was required to provide certain guarantees for Alcoa Corporation, which had a fair value of $6 at both March 31, 2022 and December 31, 2021, and were included in Other noncurrent liabilities and deferred credits in the Consolidated Balance Sheet. The remaining guarantee, for which the Company and Arconic Corporation are secondarily liable in the event of a payment default by Alcoa Corporation, relates to a long-term energy supply agreement that expires in 2047 at an Alcoa Corporation facility. The Company currently views the risk of an Alcoa Corporation payment default on its obligations under the contract to be remote. The Company and Arconic Corporation are required to provide a guarantee up to an estimated present value amount of approximately $1,406 at both March 31, 2022 and December 31, 2021 in the event of an Alcoa Corporation 18
