PT Amman Mineral Nusa Tenggara (AMNT) is the largest copper and gold mining company on Sumbawa Island, West Nusa Tenggara.

The company stands out for its commitment to deploying modern technology across mining operations. This approach not only boosts production efficiency but also strengthens safety performance at the mine site.

Drawing on open sources, AMNT has adopted several advanced technologies, including 4D blasting, laser-scanner surveying, and froth crowder systems.

These technologies are applied to optimize every stage of the mining value chain—from excavation and ore hauling to processing at the smelter.

4D Blasting, Laser Surveys, and Froth Crowders

One of AMNT’s flagship technologies is 4D blasting, a controlled blasting method that breaks rock with greater precision.

With controlled blasts, the company obtains rock that is easier to process, improves energy density and consistency, and reduces accident risk in mining areas.

In addition, laser-scanner surveys are used to ensure every ton of ore is handled carefully. This technology minimizes material losses while maximizing productivity.

Froth crowders enhance froth transport and mass pull, significantly increasing copper production rates.

Double-Flash Smelter and Copper Quality

At the smelter, AMNT uses double flash smelting technology to process concentrate into high-quality copper cathodes.

This process involves melting copper in two stages using oxygen and natural gas, producing copper with high purity.

The advantages of this smelting technology ensure AMNT’s copper quality remains consistent, meets international standards, and supports overall operational efficiency.

The application of a modern smelter demonstrates how technology can lift the value of mined products while reducing environmental impact.

Commitment to Workplace Safety

AMNT places safety as a top priority. With advanced technology, competent personnel, and a zero-harm mindset, the company has succeeded in reducing accident risks on site.

A key indicator is AMNT’s Total Reportable Injury Frequency Rate (TRIFR), which stood at 0.98 as of December 31, 2024.

This figure positions the company among the world’s best in mining safety—not only in Indonesia.

How Technology Lifts Operating Efficiency

Modern technology has had a significant impact on operating efficiency. Each ton of ore is handled with precision, material losses are minimized, and copper recovery is improved. This ensures every mining process delivers maximum results without compromising worker safety.

By integrating 4D blasting, laser scanners, and froth crowders, AMNT has accelerated production and reduced operating costs. These technologies also lessen reliance on conventional methods that are riskier and less efficient.

Innovation and the Future of Sustainable Mining

Technological innovation not only boosts efficiency but also supports the mining industry’s sustainability. AMNT is a model for how modern technology can be implemented comprehensively to reduce risk, raise productivity, and maintain workplace safety.

The Batu Hijau mining area in West Sumbawa, operated by AMNT, illustrates the real-world application of advanced technologies.

Through modern technology adoption, the company has created a safer work environment, more efficient operations, and higher-quality copper output.

Building Human Capacity and a Safety Culture

Beyond technology, AMNT emphasizes human capital development. A skilled, competent workforce is essential to operational success.

Upskilling in mining technologies enables workers to use advanced equipment optimally while adhering to stringent safety protocols.

A zero-harm mindset ensures every employee understands the importance of safety at every stage of the process. This makes AMNT one of the mining companies with the highest safety standards globally.

Benefits for Indonesia’s Mining Industry

AMNT’s technology deployment shows that mining in Indonesia can be both more efficient and safer. In addition to improving copper recovery, technology supports operational sustainability and strengthens the company’s global competitiveness.

Smelting technology, 4D blasting, laser scanners, and froth crowders are concrete examples of innovations that deliver dual benefits: higher productivity and better worker safety. With this approach, Indonesia’s mining industry is becoming more competitive and more sustainable.

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