Court of appeal ruled that police must prosecute a group of protesters who have been illegally blocking access to the company’s Amulsar gold project.

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.