Briggs was a conventional open pit operation with ore treated via heap leaching. Mining and leaching ceased in July 2015 due to uneconomic reasons. Residual leaching is expected to continue up to 2017 at least. Wood Mackenzie’s asset reports are built from the bottom up, incorporating a number of granular data metrics to ultimately produce our industry standard cash operating costs. This report contains a detailed asset note giving you a holistic view of the asset, including an operational overview through to a timeline of events from inception to now. This qualitative analysis is supplemented by the associated Excel download which enables interrogation of a whole series of cost and production metrics over the life of the asset.