Decade-low prices have had a negative effect on the profitability of existing mines and on the capacity of early-stage projects to raise necessary funding to be mine-ready when demand picks up.
Negotiations between management, workers, community leaders and the government created an agreement under which workers are being re-employed in phases.
A UK appeals court overturned a decision forcing a Kazakh mining company to hand over documents to prosecutors who are investigating the firm for corruption.