Section 166, The Mines and Minerals Act, 2009

(1) The holder of a mineral right shall preserve all coresand drilling samples, except for such amounts as may be required for assaying and testing and, at such time as he no longer requires them, or upon the expiry, surrender or cancellation of the right, to advise the Director and the Director of Geological Survey. (2) On receiving such advice, the Director or the Director of Geological Survey may within thirty days request that the cores and drilling samples (or such of them as are required) to be provided to him, and the holder of the tenement shall comply with such a request at his own cost.