The Canadian miner's shares have sunk to historic lows in August on news that production from the vast Oyu Tolgoi copper-gold-silver mine in Mongolia could be delayed 16 to 30 months from the original estimate, while the capital cost of the underground expansion could cost another $1.9 billion.

The investment provides Ivanhoe with the equity cushion required to fast-track Kamoa-Kakula’s 6 Mtpa Phase 1 mine to production.