Pasta de Conchos mine disaster

The National Mining and Metal Workers Union (SNTMMSRM) stated that the trapped miners were approximately 1,600 feet (490 m) below ground, via a mile-long horizontal shaft.

[2] When the gas explosion occurred, the temperature inside the mine increased to 1,110 degrees, releasing methane and carbon monoxide that would have absorbed nearly all available oxygen.

The Governor of Coahuila, Humberto Moreira Valdés, told the Televisa television network that the mine's ventilation service, which uses fans to import oxygen and export dangerous gases, was still in operation.

[4] It was reported that mine workers had gone on strike against Grupo México at least 14 times, "not only for salary increases… but because of its constant refusal to review security and health measures."

On the afternoon of February 25 the CEO of Grupo México confirmed during a press conference that "there was no possibility of survival after the methane explosion", based on a scientific report.

[6] The following day the Secretary of Labor, Francisco Javier Salazar Sáenz, and Governor Moreira announced the mine would be closed indefinitely once all the bodies were recovered.

[8] According to the IndustriALL Global Union, as of August 2016, "Ten years after the mining homicide at Pasta de Conchos, Mexico, the government has still not conducted a thorough investigation into the real causes of the disaster, brought those responsible to justice, recovered the bodies or compensated the families of the victims.

[11] President Andrés Manuel López Obrador (AMLO) announced on February 19, 2021, the 15th anniversary of the accident, that rescue efforts had begun.