Joy Mining has reported the successful installation of a longwall system at the FMC Westvaco soda ash mine in Wyoming, US.
ROCK SPRINGS, Wyo. — The FMC Corporation, which annually mines the most trona in the world, is playing it safe with a longwall-mining project that could cause ground subsidence in areas with gas ...
Richard Kramer, a mine business analyst for FMC Alkali Chemicals in Green River, stands next to the shearer drum at FMC's longwall trona mine on June 30, 2009, grinding away the face of the trona rock ...
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