The 500kt/y smelter will be fuelled by a 1250MW coal-fired captive power plant. Nalco said the coal supply agreement would be for 6Mt/y for at least 20 years.

Nalco would import bauxite from its Indian mines and the smelted products would be meant for re-exports, primarily to India.

Nalco has entered into an agreement with Rak Minerals & Metals Investments (RMMI), under which RMMI will have a 24% stake in the Indonesian aluminium project.