News in Numbers

South32 hopes to purchase Botswana’s Khoemacau mine, which produces 60,000 tonnes of copper and 1.6 million ounces of silver per year.

Walkabout’s Lindi Jumbo graphite project in Tanzania is approximately 77% complete, according to contractors, with remaining equipment soon to arrive.

Polymetallic nodules, such as those targeted by deep-sea miners, are usually found between 3,500m and 6,000m.

A miscalculation of holiday pay has led BHP to underpay 28,500 staff over the past 13 years.

The government of New South Wales has given Newcrest a final pollution prevention notice for failing air standards checks, after two previous fines of A$15,000.