Release: Antam monthly exploration report for May 2012

(Jakarta, June 14, 2012)--PT ANTAM (Persero) Tbk is pleased to announce its exploration report for May 2012 in accordance with the Indonesia Stock Exchange listing rules.

Antam?s exploration activities were focused on nickel, gold, bauxite, coal, and limestone in May 2012, with total preliminary cost of Rp30.4 billion.

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

In general, Antam conducted core logging and sampling, moisture content and specific gravity measurements, test pitting, topography and grid measurement, drilling, x-ray diffraction measurement, detailed geological mapping (DGM), sample preparation, and cross checking with external laboratory.

Antam spent Rp8.3 billion on nickel exploration activities in May 2012.

GOLD
Antam conducted gold exploration activities at West Java, Banten, Jambi, West Sulawesi, and Papua. Antam spent Rpl 9.1 billion in May 2012 for gold exploration activities.

Exploration activities at Pongkor included, among others, DGM, core logging, hand-auger survey, core and soil sampling, drilling, drill-track measurement, geophysical survey with gravity method, point load testing, as well as geological evaluation and 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, semi-detailed geological mapping (SDGM), hand-auger survey, drilling, core logging, rock, core, XRD, soil, and petmin samplings, geophysical survey with induced polarization (IP) method, and measurement of drill track and holes.

Meanwhile, at E3atang Asai, iambi, Antam performed DGM, trenching, hand-auger survey, fluid inclusion (Fl) and XRD samplings, drill logging, drill tracks and holes and trench measurement, geophysical survey with magnetic and IP methods.

At Oksibil, Papua, Antam conducted SDGM, DGM, trenching, rock and XRD samplings, structure mapping, drill logging, drill track measurement, GPS survey, and geochemical analysis of soil and rock.

BAUXITE
Antam conducted bauxite exploration activities at Mempawah, Landak, Tayan, and Munggu Pasir, West Kalimantan. Total exploration activities for bauxite amounted to Rp2.4 billion in May 2012.

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

COAL AND LIMESTONE
In 2012, Antam performed feild 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 Rp71 9.8 million. (end of release)