I had a look at these two sites and found these bits of information Carlos, probably not much help
III Mining rights and required licences and permits
i Title
Underground minerals belong exclusively to the state. However, any private party may be authorised by the state to engage in mining activities (from exploration to exploitation and distribution), provided that specific objectives of eligibility, priority and capacity criteria set forth in the Mining Code are met. The types of mining permits available in the DRC are research permits, exploitation permits (including small-scale mines) and tailing exploitation permits. Specific legislation regarding artisanal mining and quarry rights also exists.
Companies that wish to develop mining activities in the DRC are required either to incorporate a Congolese company or to elect domicile with a 'mining agent' as a condition of eligibility to obtain an exploitation permit. In addition, to be eligible for a mining permit,
companies are obliged to either form a joint venture with a state-owned company (such as Gécamines) that already holds the necessary permits, or freely assign a mandatory 10 per cent stake of its share capital to the DRC.
Mining Law: Democratic Republic of the Congo
thelawreviews.co.uk
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