Queensland coalminers will strike for a week from February 15 to step up the longstanding dispute with BHP Billiton over safety, wages and conditions.
The company's seven coal mines in Queensland will be closed down after 15 months of negotiations broke down between the Construction Forestry Mining Energy Union (CFMEU) and management.
The BHP Mitsubishi Alliance (BMA) operates the mines. It is likely to lose up to 1 million tonnes in forgone or deferred production. The value of the coal production lost will total $200-300 million.