Amarc stock nearly doubles on gold-copper discovery at JOY project in British Columbia
Amarc's CEO called the AuRORA discovery "a significant inflection point" in the exploration of the JOY district with Freeport.
The world copper market could see a supply deficit of half a million tonnes this year and the shortage may extend beyond 2013, Rio Tinto’s (RIO.L: Quote) copper unit chief executive, Andrew Harding, said on Wednesday.