https://www.mining-technology.com/marketdata/newsopen-pit-coal-mine-collapse-antique-philippines-kills-three-workers-4625571/
Open-pit coal mine collapse in Antique, Philippines kills three workers - Mining Technology
Jul 16, 2015 - A collapsed open-pit coal mine in Semirara Island in Antique in central Philippines has killed at least three people, with six others currently missing.
open pit coal mine