SEACOR Marine Holdings Inc. New Standards Disclosure

Recently Issued Accounting Standards. On December 18, 2025, the FASB issued ASU 2025-12, Codification Improvements, which clarify, correct errors in and make improvements related to various topics in the FASB Accounting Standards Codification (“ASC”). The guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2026. While early adoption is permitted on an issue-by-issue basis, the Company has determined it will not early adopt the standard. The Company does not believe the adoption of the standard will have a material effect on the Company’s consolidated financial position or results of operations.

On December 8, 2025, the FASB issued ASU 2025-11, Interim Reporting (Topic 270): Narrow Scope Improvements, which clarifies interim financial reporting requirements by improving the navigability of the guidance and more clearly specifies what disclosures are required in an interim reporting period. The guidance is effective for interim periods in fiscal years, beginning after December 15, 2027. While early adoption is permitted, the Company has determined it will not early adopt the standard. The Company does not believe the adoption of the standard will have a material effect on the Company’s consolidated financial position or results of operations.

On September 29, 2025, the FASB issued ASU 2025-07, Derivatives and Hedging (Topic 815) and Revenue from Contracts with Customers (Topic 606): Derivatives Scope Refinements and Scope Clarification for Share-Based Noncash Consideration from a Customer in a Revenue Contract, which addresses two issues: (1) refines the scope of the guidance on derivatives in ASC 815 (Issue 1) and (2) clarifies the guidance on share-based payments from a customer in ASC 606 (Issue 2). The guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2026. While early adoption is permitted, the Company has determined it will not early adopt the standard. The Company does not believe the adoption of the standard will have a material effect on the Company’s consolidated financial position, results of operations or disclosures.

On November 4, 2024, the FASB issued ASU 2024-03, Reporting Comprehensive Income–Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires disaggregation of certain income statement expense captions into specified categories in disclosures within the footnotes to the financial statements. The guidance is effective for fiscal years beginning after December 15, 2026, and interim periods within the fiscal years, beginning after December 15, 2027. While early adoption is permitted, the Company has determined it will not early adopt the standard. The Company does not believe the adoption of the standard will have a material effect on the Company’s consolidated financial position or results of operations.

On October 9, 2023, the FASB issued ASU 2023-06, Disclosure Improvements: Codification Amendments in Response to the United States Securities and Exchange Commission’s (“SEC”) Disclosure Update and Simplification Initiative, which amends the disclosure or presentation requirements related to various subtopics in the FASB ASC. The effective date is contingent on when the SEC removes the related disclosure from Regulation S-X or Regulation S-K, with early adoption prohibited. The Company does not believe the adoption of the standard will have a material effect on the Company’s consolidated financial position, results of operations or disclosures.