London-listed URA holdings, which owns and operates the Gravelotte emerald mine in Limpopo, South Africa, has acquired a majority interest in Prasinus Exploration, the owner of the Curlew emerald mine, in the Pilbara region of Western Australia. URA has acquired a 65% interest in Prasinus for A$450 000, or about £237 000, and has the option to acquire the remaining 35% interest for a further A$300 000, or £158 000, in URA shares after an initial 12-month period and expiring on October 18, 2025.