Union sets April 12 date for next stoppage at BHP Australia coal mines

The coal mines, operated by the BHP Billiton-Mitsubishi Alliance JV, will be hit by a two-day work stoppage on April 12, union officials said. See http://www.mineweb.com/mineweb/view/mineweb/en/page504?oid=148860&sn=Detail&pid=92730.