Core Natural Resources, Inc. has provided an update on their efforts to resume operations at the Leer South mine following a combustion-related incident in mid-January. After re-entering the mine on June 10th, Core's team restored ventilation, hydraulic pressure, and assessed the condition of key equipment, finding the longwall largely unaffected by the event. However, on June 26th, an increase in carbon monoxide levels necessitated the evacuation of the mine and the restoration of seals in the affected area. Core is collaborating with federal and state officials to reposition the longwall equipment, aiming to restart production within four months. Despite the delay, the company remains optimistic about resuming operations in the fourth quarter and expects insurance recoveries related to the incident to exceed $100 million.