CONCESSION AREA

The concession area covers approximately 1.200 square kilometres in the northern part of East Kalimantan, approximately 300 kilometres north of the provincial capital of Samarinda. It surrounds Tanjung Redeb, the principal town in the Berau Regency. The major rivers in the area are navigable to the furthest inland points of the Concession area. The transmigration highway also connects Tanjung Redeb with the other major cities.

Regional Geology

The Berau area is a sub-basin in the Tarakan Basin, one of the three major sedimentary basins developed along the eastern continental margin of Kalimantan during the tertiary period. The Tarakan Basin can be divided into four sub-basins with the Berau sub-basin being the most southern of these. The Berau sub-basin is centred on the Berau River and has undergone three main periods of deformation. During the final Pliocene period, the existing coal measures were developed in the middle Miocene and older sediments.