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 the explosions occurred, citing the fragility of the ground or the ruined buildings around. The remaining 260 tons of propene inside the damaged pipes was vented out completely by Monday from both of their input and output points. Nitrogen gas was put into pipes ensuring all propene had been removed, a move which had been done earlier by the CPC. The Environmental Protection Administration also had dispatched personnel to Kaohsiung to assist local government in air pollution monitoring. On 5 August, the Kaohsiung District Prosecutor's Office issued the death certificates of two missing firefighters who had fought the fires caused