MONTANA – The International Cyanide Management Institute has recertified the Golden Sunlight mine 55 km east of Butte as being in compliance with the Cyanide Code. The mine was initially certified in 2011, and this is the first recertification that must occur at three-year intervals.
The Golden Sunlight mine produced 92,000 oz of gold in 2013 from conventionally mined open pits. Gold is recovered using carbon-in-pulp technology and sand tailings retreatment that further increases the recovery rate. All-in sustaining costs were US$906 per oz produced in 2013.
The Cyanide Code is a voluntary industry program that supplements, but does not replace, a miner’s obligation to comply with local laws and regulations. A detailed list of the operations covered by signatory companies’ applications, along with the full text of the Cyanide Code and its implementing and administrative documents, are available at CyanideCode.org.