Savannah Resources to extract quartz, glass-making ceramic at lithium mine in Portugal

Rio will design, engineer, and build a demonstration plant owned by a new joint venture with the Government of Québec, through Investissement Québec,.

Tia Maria is eventually expected to produce 120,000 metric tons of copper annually.

Its board on Friday unanimously rejected the transaction.

Cobalt futures trading has taken off on CME Group’s Comex exchange, creating a way for traders to hedge their physical positions in the newly liquid futures market. 

The Tia Maria mine has been on hold for years amid community opposition over fears of the mine's environmental impact.

"There's no unified ESG standard for us to follow," said Bryce Lee, a director at China's Huayou Cobalt.

Vedanta now needs to follow the court ruling by releasing $250 million to settle debts that KCM owes to contractors and suppliers.

The question of where the M&A spotlight is next going to fall has a sector newly buzzing with intrigue.

Output in May was the highest this year, rising more than 8% compared with April.