Tarenni Colliery 1858, when the Primrose Colliery was owned by Morgan and Lewis, fumes of an engine boiler suffocated 14 men and boys, and 7 horses. According to HM Inspectorate of Mines and Quarries data, outside the Gwendraeth valley, Tarenni Colliery had the highest set of recorded incidents for coal damp and methane gas explosions. In total during its production lifetime, there were six outbursts in which three men lost their lives: one on 12 December 1914; two on 17 February 1941. On 1 November 1909, water from the abandoned Ynysgeinon pit caused the death of five miners at Tarenni No.2. On
2014 Kaohsiung gas explosions by the gas explosions, despite their bodies having yet to be found. The prosecutors said that rescuers could not find the bodies and suspected that they might have been vaporized from the explosions. On 8 August, another gas leak was reported in Cianjhen District shortly before 7:50 a.m causing widespread panic among residents. People who lived within 150 meters radius of Kaisyuan 3rd Road were evacuated the city police department to Kaohsiung Municipal Guanghua Junior High School and Le Chyuan Elementary School, raising concern among residents over their safety. Authorities tried to pin down the source of the gas and