Nueva Rosita included an underground coal mine, which has been closed since 2006; an open-pit mine, and a coal washing plant.

In July 2019, the Company decided to suspend coal mining operations. On February 19, 2020, the Company announced the decision to return the underground coal mine (the Olivo concession), which had been closed since 2006, to the Mexican government in response to a request of the President of Mexico to resume efforts to locate the remains of miners lost in a 2006 mining accident. On February 20, 2020 the Company presented the offer to return the concession to the General Direction of Mines. On September 3, 2020, the authorities accepted the offer. On August 2021, the Company donated the land and buildings located in the mine to the CFE.