Petra sells 4.8 carat blue diamond for $1.45mn

A new report details subpar investor returns in the mining industry over the last decade, particularly big cap diversified companies which have not adapted to new realities.

Silicon can hold 10 times as many lithium ions by weight as graphite, but developing the battery technology to scale sustainably has met its share of challenges.

The French miner was this year given a sales quota by the Asian nation that was 29% less than it expected.

Chemaf agreed to sell its assets to Chinese defence and industrial giant, China North Industries Corp, or Norinco in June.