ALLIANCE RESOURCE PARTNERS LP_April 1, 2026

On April 1, 2026, Alliance Resource Partners, L.P. reported that its indirect subsidiary, River View Coal LLC, received an imminent danger order from the Mine Safety and Health Administration (MSHA) at the River View Mine. The order was issued due to a safety concern regarding a shuttle car not being adequately blocked against motion during maintenance. MSHA removed miners from the affected area, and corrective actions were taken, leading to the termination of the order later the same day. No injuries were reported. The Partnership retains the right to contest the order and any associated citations or assessments. This filing is an 8-K report detailing the mine safety event.