Release: Antam monthly exploration report for March 2011

(Jakarta, April 13, 2011) PT ANTAM (Persero) Tbk is pleased to lodge March 2011 Exploration Report in accordance with the Indonesia Stock Exchange listing rules.

Antam?s exploration activities focused on nickel, gold and bauxite. The total exploration cost on the above commodities in March 2011 amounted to Rp12.6 billion (preliminary figures).

NICKEL
Antam conducted nickel exploration in North Maluku, Southeast Sulawesi and West Papua.

Antam continued to conduct grid measurement, drilling, core logging and sampling activities in Buli - North Maluku; while in Lasolo, Lalindu, Mandiodo and Tapunopaka - Southeast Sulawesi, Antam conducted grid and topography measurement, drilling, core logging and sampling activities.

In Pulau Gag - Papua, Antam did several exploration activities, which include drilling, drilling course measurement, core logging and sampling.

The total nickel exploration cost reached Rp4.4 billion.

GOLD
Antam conducted gold exploration in Batangasai-Jambi, Pongkor and Papandayan-West Java, Cibaliung-Banten, Mao Batuisi - West Sulawesi and Oksibil-Papua.

Exploration activities in Batangasai-Jambi included Detailed Geological Mapping (DGM), trenching, rock sampling, core, petrography/mineragraphy, XRD and Fl, outcrop measurement, core logging and drilling activities.

Exploration activities in Java were conducted in several areas. In Pongkor-West Java, Antam performed DGM, core logging, core sampling, outcrop measurement, drilling and also evaluation and geological modelling. In Papandayan-West Java, Antam conducted Semi Detailed Geological Mapping (SDGM), trenching, drilling, core lodging, rock and core sampling, CSAMT track measurements, magnetic geophysics and CSAMT geophysics. In Cibaliung-Banten, Antam conducted Icore logging, core sampling and drilling.

Antam conducted drilling, core logging and core collection in Mao Batuisi - West Sulawesi.

In Oksibil-Papua, Antam conducted initial exploration activities including SDGM, DGM, rock sampling and pet/min and also conducted grid measurement.

The total gold exploration cost reached Rp7.2 billion.

BAUXITE
Antam conducted bauxite exploration in Mempawah, Landak, Tayan and Munggu Pasir of West Kalimantan.

The total bauxite exploration cost reached Rp932.7 million. (end of release)