A project study was started in 2004. An evaluation program in 2006 was followed by a drilling and sampling program in 2007. In September 2009 a feasibility study on a proposed mine was started, which was completed in September 2010. De Beers and its partners approved it in June 2011 and are preparing a plan and budget for a final decision on whether to go ahead with the mine project. If it proceeds to an operating mine, is expected to annually mine of kimberlite, and to produce per year over an 11-year life.