Release: Antam monthly exploration report for March 2012

(Jakarta, April 13, 2012)--PT ANTAM (Persero) Tbk is pleased to announce its exploration report for March 2012 in accordance with the Indonesia Stock Exchange listing rules.

Antam?s exploration activities were focused on nickel, gold, bauxite, coal, and limestone in March 2012, with total preliminary cost of Rp19.4 billion.

NICKEL
Nickel exploration activities were conducted in Bull, North Maluku; Lasolo, Lalindu, Mandiodo, and Tapunopaka, Southeast Sulawesi; and Pulau Gag, West Papua.

In general, Antam conducted grid measurement, topography measurement, drilling, drill track and holes measurement, core logging, sampling, test pitting, detailed geologic mapping , resistivity testing and sample preparation during its nickel exploration activities.

Antam spent Rp7.2 billion on nickel exploration activities in March 2012.

GOLD
Antam conducted gold exploration activities at West Java, Banten, Jambi, West Sulawesi, and Papua. Antam spent Rp11.4 billion in March 2012 for gold exploration activities.

Exploration activities at Pongkor included, among others, detailed geological mapping (DGM), core logging, hand-auger survey, sampling of rock, core, and soil, drilling, drill track measurement, geophysical survey with magnetic, gravity, and Controlled Source Audio-Frequency Magneto-Telluric (CSMAT) methods, as well as geological modeling.

In Papandayan, West Java, Antam performed DGM, core logging, test pitting, core campling and drilling, geotechnical drilling, drill track measurement, and geophysical survey using magnetic, gravity, and CSMAT methods.

At Cibaliung, Antam conducted DGM, trenching, sampling , core drillings, drill track measurement, as well as geophysics survey.

Meanwhile, at Batang Asai, Jambi, Antam performed DGM, trenching, hand-auger survey, Fi and core sampling, petrographic and mineragraphic testing, core logging, magnetic geophysical survey, as well as trench and drill hole measurement.

At Mao, Batuisi and Karosa, West Sulawesi, Antam conducted DGM, rock sampling, drill track measurement using geodetic GPS.

Antam conducted DGM, semi detailed geological mapping, trenching and rock cam pling at Oksibil, Papua.

BAUXITE
Antam conducted bauxite exploration activities at Mempawah, Landak, Tayan, and Munggu Pasir, West Kalimantan. Total exploration activities for bauxite amounted to Rp439.7 million in March 2012.

Antam performed grid measurement, test pitting, sample, and sample preparation as part of its bauxite exploration activities.

COAL AND LIMESTONE
In 2012, Antam performed field surveys at coal and limestone prospects. The initial surveys for coal exploration were conducted in Sintang, West Kalimantan; South Barito, Central Kalimantan; and Bangko, Jambi. Early survey works with limestone target were carried out in Sangaji, North Maluku. The total cost of these activities reached Rp345.8 million. (end of release)