SEACOR Marine Holdings Inc. Fair Value Disclosure

The fair value of an asset or liability is the price that would be received to sell an asset or transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The Company utilizes a fair value hierarchy that maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value and defines three levels of inputs that may be used to measure fair value. Level 1 inputs are quoted prices in active markets for identical assets or liabilities. Level 2 inputs are observable inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly, including quoted prices for similar assets or liabilities in active markets, quoted prices in markets that are not active, inputs other than quoted prices that are observable for the asset or liability, or inputs derived from observable market data. Level 3 inputs are unobservable inputs that are supported by little or no market activity and are significant to the fair value of the assets or liabilities.

The fair value of the Company’s derivative instruments was estimated by utilizing a spot rate as of the measurement date provided by an independent third party.

The carrying value of cash, cash equivalents, restricted cash and trade receivables approximates fair value. The fair value of the Company’s long-term debt was estimated based upon quoted market prices or by using discounted cash flow analysis based on estimated current rates for similar types of arrangements. Considerable judgment was required in developing certain of the estimates of fair value and, accordingly, the estimates presented herein are not necessarily indicative of the amounts that the Company could realize in a current market exchange.

Property and equipment. During the year ended December 31, 2025, the Company did not record impairment charges on any owned vessels. During the year ended December 31, 2024, the Company recognized impairment charges totaling $3.7 million for other equipment designated for a construction project that was indefinitely deferred and will no longer be completed. During the year ended December 31, 2023, the Company recognized impairment charges of $0.7 million for one leased-in AHTS to adjust for indicative cash flows and the cost to return the vessel to its owner. The impairment charges for the assets held for sale are included in gains (losses) on asset dispositions and impairments in the accompanying consolidated statements of income (loss).

Investments, at equity, in 50% or less owned companies. During the year ended December 31, 2025, the Company did not make any adjustments to any of its investments in 50% or less owned companies.