Antam (ASX:ATM) reported preliminary unaudited exploration expenditure of 134.39 billion rupiah for the period ended Sept. 30, focusing on gold, nickel and bauxite, according to an Australian bourse filing on Oct. 9 after market hours.

Gold exploration continued in Pongkor, West Java, while nickel exploration activities were conducted in North Konawe and Pomalaa, Southeast Sulawesi, as well as Marimoi and Lililef Sawai, North Maluku, per the filing. Meanwhile, bauxite exploration was carried out in Tayan and Landak, West Kalimantan.

Exploration work involved drilling, geological mapping, sampling and laboratory testing, while some nickel projects awaited forestry permits and RKAB approval, the filing added.