Volume 97 Number 13 May 16 - 22, 2011










Woulfe aims to re-start Sangdong mine in 2013

At its height, the Sangdong mine in South Korea was one of the largest tungsten-molybdenum mines in the world. But after a 40-year run, the mine, located 170 km southeast of Seoul, was shut down in 1993 when the price of ammonium paratungstate…




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