(EnergyAsia, June 3 2011, Friday) — Australia-listed Hunnu Coal said its subsidiary, Hunnu Investments Pte Ltd, has acquired a 70% interest in the Rio Tinto Minerals Altai Nuurs Coal joint venture (JV) project located in south-western Mongolia for A$40million. (US$1=A$1.05).Located in the Gobi Altai province, the Altai Nuurs project consists of six exploration licences covering…