Langlois was an underground polymetallic mine producing zinc, copper and silver. Ore was treated in a 2.5kt/d plant utilising differential flotation to produce separate Cu and Zn concentrates. The mine is owned by Nyrstar following the acquisition of Breakwater Resources in 2011. It has had a stop-start history with operations having been suspended a few times since its first commissioning in 1996. The mine has been under care and maintenance since December 2019. 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.