John de Vries – CEO & Managing Director – Black Rock Mining (ASX:BKT) has an 84 per cent interest in the world-class Mahenge Graphite Project (Mahenge) located in Tanzania.
John de Vries – CEO & Managing Director – Black Rock Mining (ASX:BKT) has an 84 per cent interest in the world-class Mahenge Graphite Project (Mahenge) located in Tanzania.