June 1 (Reuters) - First Cobalt Corp FCC.V
* First cobalt options 50% of Canadian refinery with cobalt one limited
* First cobalt - has entered option agreement with Cobalt One to enter into a 50-50 joint venture on Yukon cobalt extraction refinery in Cobalt, Ontario Source text for Eikon: ID:nCCNBwrKwa Further company coverage: FCC.V
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