LOCATION PROFILE
1. Mine Location
Koromatantu Village, Petasia District, North Morowali Regency, Central Sulawesi, Indonesia.
2. IUP Area
97.57 hectares, located in an Area for Other Purposes (APL), meaning it is not designated as forest land.
3. Accessibility
Distance to Maleo Airport
Approximately 61 km from the mining site, with an estimated travel time of around 1 hour and 30 minutes.
Route
Access to the location passes through key intersections, such as Cocoman Junction and Smelter GNI 1 and 2 Junctions, facilitating efficient logistical transport.
Supporting Infrastructure
Proximity to a hauling road connecting the mine to the port, enabling smooth distribution processes.
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Lithology & Volume
Estimation
Total Limestone Volume
57,846,200 m³ with a total tonnage of 107,511,200 Tons.
Limestone Reserve & Quality
1. Estimated Reserves
Based on geoelectric surveys, reserves are estimated at approximately 107 million metric tons.
2. Limestone Quality
CaO Content: +55%
CaCO₃ Content: +98%
Making PWA’s limestone highly suitable for industrial applications.
3. Geological Modeling
Utilizing Rockwork software to estimate volume and tonnage down to a depth of 30 meters above sea level.
Limestone
Product :
Boulder
Based on the SNI ASTM C131 standard (Los Angeles Abrasion Test) for aggregate abrasion testing :
Value of ≤ 25% is classified as high-quality concrete and suitable for K-400 grade concrete. The Abrasion Test value of PWA limestone is 22.42%.
Crushed Product
Highest Quality In The Market!
- High-Grade Certified Quality — SUCOFINDO lab results: CaCO₃ up to 98.6%, CaO > 55%, impurities <2%.
- Modern Crusher & Stockpile — Efficient operations ensure consistent, large-volume supply.
- Premium Industrial Fit — Ideal for quicklime, nickel HPAL, steelmaking, pulp & paper.
- Competitive Advantage — Among the best limestone quality in the market, delivering high value for partners.
PWA supplies SUCOFINDO-certified, ultra-high-grade limestone (CaCO₃ up to 98.6%, CaO > 55%, impurities <2%) from a modern Morowali Utara crusher–stockpile—delivering reliable, high-volume supply and superior performance for quicklime, HPAL, steel, and pulp & paper—making PWA a top-value partner in the market.