Located in the Southern Mountains of East Java Province, Trenggalek is in one of the most promising project areas for potential gold and copper discoveries. The total area of the Exploration IUP tenement is about 300 square-kilometres and covers highly prospective Oligo-Miocene and younger volcanosedimentary rocks in part of the Sunda-Banda Arc.
Since 2006, Arc has identified multiple epithermal gold targets and has more recently recognized the potential for large gold-copper porphyry systems.
There are several prospects already identified in this large and prospective areas.such as Sentul, Kojan, Buluroto and Sumber Bening.
Early scout drilling demonstrated the presence of a substantial epithermal gold-vein field with potential for multiple gold resources within the IUP. Some drill-holes intersected narrow high-grade intervals within broader low grade intercepts at several prospects.
The Southern Mountains of East Java is also host to the large Tumpangpitu porphyry copper-gold deposit located in the Tujuh Bukit district, about 200 kilometers to the east of the Trenggalek project area. Our early investigation of the porphyry potential of the Trenggalek IUP area indicates that it contains similar rocks and geological setting to Tujuh Bukit.