Production commenced in June 2012 from the Zeta open pit deposit. Unable to meet its debt obligations, the operator, Discovery Metals, placed the mine on care and maintenance effective of mid 2015. The decision was due to the operations high costs (very high stripping ratio) coupled with the decline in copper prices. Cupric Canyon, a private equity firm purchased the mine in 2015. The company refer to the project as the Khoemacau project and plan to mine the Zone 5 underground deposits and truck the ore to the Boseto mill.