HUNTINGTON INGALLS INDUSTRIES, INC.

3. ACCOUNTING STANDARDS UPDATES

Recently Adopted Guidance

There were no new Accounting Standards Updates (“ASU”) adopted during the nine months ended September 30, 2026 that had a material impact on the Company’s consolidated financial statements.

Accounting Guidance Issued But Not Adopted as of September 30, 2026

In November 2024, the Financial Accounting Standards Board ("FASB") issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses. The new guidance requires, among other things, tabular and qualitative disclosure of disaggregated expense information that is included in certain expense line items presented on the consolidated statement of operations. The new guidance also requires that the total amount and definition of selling expenses be disclosed. The new guidance is effective on a prospective basis for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027, with early adoption and retrospective application permitted. The Company is currently evaluating the impacts of the new guidance on its consolidated financial statements.

In September 2025, the FASB issued ASU 2025-06, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software. Among other targeted improvements, the new guidance amends existing software cost capitalization guidance by removing all references to software project development stages and providing criteria that clarify the threshold for software cost capitalization to begin. The new guidance is effective for annual reporting periods beginning after December 15, 2027, and interim reporting periods within those annual reporting periods, with early adoption permitted. The new guidance may be applied on a prospective basis, retrospective basis, or modified basis for in-process projects. The Company is currently evaluating the impacts of the new guidance on its consolidated financial statements.

In December 2025, the FASB issued ASU 2025-10, Government Grants (Topic 832): Accounting for Government Grants Received by Business Entities. The new standard establishes authoritative guidance for the recognition, measurement, and presentation of a grant received by a business entity from a government, including guidance for a grant related to an asset and a grant related to income. The new guidance also amends certain existing disclosure requirements for government assistance provided to business entities. The new guidance is effective for annual reporting periods beginning after December 15, 2028, and interim reporting periods within those annual reporting periods, with early adoption permitted. The new guidance may be applied on a modified prospective basis, modified retrospective basis, or full retrospective basis. The Company is currently evaluating the impacts of the new guidance on its consolidated financial statements.

Other accounting pronouncements issued but not effective until after December 31, 2026, are not expected to have a material impact on the Company's consolidated financial position, results of operations, or cash flows.