Mining services provider United Mining Services (UMS) Group is involved in a twin shaft sinking, equipping and infrastructure project for the Karowe diamond mine in Botswana. Owned by Lucara Diamond Corp, Karowe mine is one of the world’s leading producers of large, high-quality Type IIA diamonds. The company has been involved from the feasibility study phase, and is now implementing and constructing on site, states UMS COO Robert Hull.