Labour action would halt production at the world's top three platinum producers.
Sibanye Gold Mining News
Amid rising electricity costs, Sibanye considers ditching state-run utility company.
Most unions sign agreement; AMCU holding out.
Workers for four of the seven companies affected by the labour action had accepted a new pay offer, believed to be about 8%
Shutdown in gold production costs the country more than US$34 million a day.
Gold sector workers to down tools from the nightshift of Sept. 3.
Lower bullion prices affecting rating of AngloGold Ashanti, Harmony Gold and Sibanye Gold.