The coloured gems miner has halted operations and vacated its 75%-owned Nairoto Resources exploration camp after an insurgent attack on a nearby village.
Analysts estimate that the path to net zero may require digging up 5.2 billion metric tons of metals through 2050, which may be worth as much as $10 trillion.
The increase in global copper resources is mostly from 1990s discoveries and the last decade of exploration has been particularly unrewarding, says new report.