Lets stroll back in time...to the Rights Offeringwhere it was stated the following (below). Notice the yellow highlight.
The Board of Directors of the Company has directed that funds raised under the Overrun Facility that may be surplus to the requirements of the US$370M term loan facility upon achievement of commercial production at the Gahcho Ku diamond mine should be used for the benefit of shareholders, which may include a future determination to return such funds to shareholders by way of a future share buyback or special dividend, as the Board may determine appropriate at such time.