A Precious Stones Dealer’s Licence (PSDL), issued by the Ministry of Minerals, Energy and Water Resources (MMEWR), allows a company to export rough diamonds from Botswana. All Botswana based companies need to hold a valid PSDL prior to registering with ODC. For international companies who do not hold a valid PSDL, ODC will apply on their behalf once they participate in an auction.