Batu Hijau

Overview

World-class porphyry Cu-Au deposit on Sumbawa Island.

Geological Context

Host Rock: Tonalite porphyry (Pliocene)

Tectonic Setting: Island arc

Geological Province: Sunda-Banda Arc

Metallogenic Belt: Southeast Asian Porphyry Belt

Resources & Operations

Operator: Amman Mineral

Mining Method: Open Pit

Production Start: 2000

Data Provenance

Source: Amman Mineral reports

Last Verified: 2025-12-01