ALLIANCE RESOURCE PARTNERS LP

On January 29, 2026, we announced our decision to cease longwall production at our Mettiki mining complex, which is primarily included in our Appalachia Coal Operations reportable segment. We concluded that as a result of this decision, along with uncertainty regarding future longwall production resumption and our evaluation of potential operation scenarios, we would not recover the carrying value of Mettiki’s assets. Accordingly, we adjusted the carrying value of

Mettiki’s assets from $95.3 million to its fair value of $57.5 million resulting in an impairment charge of $37.8 million. We continue to evaluate options concerning the mine’s future.

The fair value of the impaired assets was determined using an income approach, which represents a Level 3 fair value measurement under the fair value hierarchy. Our analysis considered two operating scenarios for Mettiki and reflected a probability-weighted discounted cash flow model based on these scenarios. Significant assumptions in the model included proprietary internal estimates of expected future sales volumes, realized coal sales prices, operating costs, capital requirements, the timing of cessation of operations, and a risk-adjusted discount rate. The following table presents quantitative information about certain significant unobservable inputs used in our nonrecurring fair value measurement. The use of significant unobservable inputs results in uncertainty as changes in these unobservable inputs could significantly impact the estimated fair value.