Release: Antam monthly exploration report for May 2010

(Jakarta, 15 June 2010)--PT Antam (Persero) Tbk is pleased to lodge May Exploration Report in accordance with the Indonesia Stock Exchange listing rules.

Antam?s exploration activities focused on nickel, gold and bauxite. Total exploration cost on above commodities in May 2010 amounted to Rp10.3 billion (preliminary figures).

NICKEL
Antam conducted nickel exploration at North Maluku and Southeast Sulawesi.

Antam conducted logging core, core sampling, SG and MC measurement, test pitting, topography and grid measurement, georadar and drilling activities at Buli-North Maluku.

Exploration activities at Southeast Sulawesi particularly Mandiodo and Lasolo area included drilling, logging core, core sampling, mapping, grid and topography measurement.

Total nickel exploration cost reached Rp3.3 billion.

GOLD
Antam conducted gold exploration at Batangasai-Jambi, Pongkor and Papandayan-West Java, Cibaliung-Banten, Wawonii-Southeast Sulawesi and Mao Batuisi-West Sulawesi.

Exploration activities at Batangasai-Jambi included Detailed Geological Mapping (DGM), opening, collected samples of rocks, Fl, core, petro/mineragraphy and XRD, conducted outcropping, drilled logging, drilling activities, track measurement, magnetic geophysics and P geophysics.

Exploration activities at Java Island were conducted at several areas. At Pongkor-West Java, Antam performed DGM, logging core, hand auger, collected samples of rock, core, XRD, petro/mineragraphy, soil and FI, conducted drilling, drilling track, magnetic geophysics, geological evaluation and modelling. At Papandayan-West Java, Antam conducted DGM, opening, drilling, logging core, collected samples of rocks, core and XRD and also conducted outcropping.

At Cibaliung-Banten, Antam conducted drilling, geological mapping and measurement of core drilling, CSAMT and IP.

At Wawonii?Southeast Sulawesi, Antam conducted exploration activities including Semi Detailed Geological Mapping (SDGM), opening, collected samples of rocks, core, Fl and XRD, drilling, logging core and track measurement.

Antam conducted SDGM, opening, collected rock, core, soil, FI/PET/XRD samples, drilling, logging core and hand auger at Mao Batuisi - West Sulawesi.

Total gold exploration cost reached Rp5.2 billion.

BAUXITE
Antam conducted bauxite exploration at Mempawah, Landak, Tayan, Munggu Pasir, Menjalin, Sebadu and Meliau of West Kalimantan, Exploration activities at Mempawah and Landak included grid measurement, EDM, test pitting and sampling.

Antam conducted grid measurement, test pitting and sampling at Tayan while at Munggu Pasir, Antam conducted grid/ polygon measurement, test pitting and sampling.

Exploration activities at Menjalin and Sebadu, prospects of PT Borneo Edo International, included grid measurement, test pitting and sampling.

Exploration activities at Meliau, a prospect of PT Mega Citra Utama, included grid measurement, test pitting and sampling.

Total bauxite exploration cost reached Rp1.8 billion.