Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES SECOND QUARTER 2026 RESULTS AND STRATEGIC ALTERNATIVES REVIEW Houston, Texas July 29, 2026 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the "Company" or "SEACOR Marine"), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its second quarter ended June 30, 2026, and separately announced that its Board of Directors (the "Board") is evaluating potential stra ...