Uranium supply crunch by 2016 – nuclear expert says

Energy Minister Jonathan Wilkinson said Trump’s assertion that America doesn't need anything from Canada was “simply false.”

The moves are the latest signs that Glencore and Trafigura Group, which have long dominated metals trading, are being challenged by an influx of new competition.

KNS halted its operations in March after Glencore decided to sell its 49% interest.

Combined with an existing 6% mineral royalty tax, the 15% export duty on emeralds represents a significant tax burden for Gemfields.