PT Amman Mineral Internasional Tbk (AMMN) spent USD 3.03 million, equivalent to IDR 50.90 billion (at an exchange rate of IDR 16,800 per US dollar), on exploration activities during the fourth quarter of 2025.

Throughout this period, AMMN conducted exploration through its subsidiary, PT Amman Mineral Nusa Tenggara (AMNT), operating within the Special Mining Business License (IUPK) areas of Block II (Elang) and Block III (Rinti) in Sumbawa, West Nusa Tenggara.

The company did not conduct any field exploration activities in IUPK Block I (Batu Hijau) or Block IV; therefore, no exploration costs were incurred for these two blocks.

Moving forward, AMMN plans to conduct reviews and evaluations of previous exploration results to serve as a basis for determining the next steps in developing the mining areas.

For comparison, in the second quarter of 2025, AMMN, through PT Amman Mineral Nusa Tenggara, also realized exploration expenditures of USD 2.85 million for activities in the same regions.

Meanwhile, research from Sucor Sekuritas on December 9, 2025, mentioned that the commencement of Phase 8 at Batu Hijau serves as a major catalyst for a surge in production volume amidst the global rally in copper and gold prices.

Phase 8 of Batu Hijau is described as a "game changer." Concentrate production in 2026 is expected to more than double annually, supported by increased ore grades, the addition of new concentrator lines, and rising utilization of the copper smelter, which began producing cathodes in early 2025.

Smelter utilization is projected to reach approximately 80 percent in 2026 and approach full capacity by 2027. Beyond Batu Hijau, the Elang project is also set to become the next growth engine.

Located approximately 54 kilometers from the existing mine, Elang is one of the largest undeveloped copper-gold reserves in the world, with total resources equivalent to 25 billion pounds of copper and 35.1 million ounces of gold. The project is scheduled to enter the commissioning stage in 2031.

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