BHP Billiton received approval from the Saskatchewan Ministry of Environment for the development of the Jansen potash project in Saskatchewan. The company submitted the Environmental Impact Statement in December 2010. BHP Billiton, in June, approved a $488 million investment to support the development of Jansen in its feasibility study stage. Mine design and engineering will now be completed along with initial surface construction and the first 350 m of shaft sinking. Based on the current schedule, Jansen is expected to start producing saleable potash in 2015. The project is designed to ultimately produce approximately 8 million metric tons (mt) per year of agricultural grade potash from its 3,370 million mt in-situ mineral resource with an estimated 70-year mine life.