The busiest deal maker in the Australian resources sector has struck again with private equity firm EMR Capital set to exit its Martabe gold and silver mine under the terms of a deal that values the mine at $US1.21 billion.

Less than three years after leading a syndicate to buy the Indonesian mine for $US775 million, EMR confirmed on Wednesday the syndicate had agreed to sell its 95 per cent stake in the mine at prices that assumed the entire mine was worth $US1.21 billion.