SEACOR Marine Holdings Inc.

Evaluation of Disclosure Controls and Procedures

With the participation of the Company’s principal executive officer and principal financial officer, management evaluated the effectiveness of the Company’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act), as of June 30, 2026. Based on their evaluation, the Company’s principal executive officer and principal financial officer concluded that the Company’s disclosure controls and procedures were effective as of June 30, 2026 to provide reasonable assurance that information required to be disclosed by the Company in reports filed or submitted under the Exchange Act is (i) recorded, processed, summarized and reported within the time periods specified in the United States Securities and Exchange Commission’s (“SEC”) rules and forms and (ii) accumulated and communicated to the Company’s management, including its Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

The Company’s disclosure controls and procedures have been designed to ensure that information required to be disclosed by the Company in the reports it files or submits under the Exchange Act is recorded, processed, summarized and reported to the Company’s management, including its principal executive and principal financial officers, within the time periods specified in the SEC’s rules and forms to allow timely decisions regarding required disclosures. All internal control systems, no matter how well designed, have inherent limitations. Therefore, even those internal control systems determined to be effective can provide only a level of reasonable assurance with respect to financial statement preparation and presentation.

Changes in Internal Control Over Financial Reporting

There have been no changes in the Company’s internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) that occurred during the Current Year Quarter that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.