The saprolite deposit contains 75.6 million tonnes of measured and indicated resources grading 2.47% of nickel and 83 million tonnes of inferred resources grading 2.5%. The Koniambo orebody extends over 20 kilometers long and 5 kilometers wide. On this area of approximately 21 square kilometers has a mineralization of lateritic origin with high contents of nickel.

The laterite profile of the deposit can be described as having a thin layer of rich duricrust that is superimposed on a layer of limonite covering an area of transition finally leading to a layer of saprolite. The quality of nickel, cobalt, iron and various oxide ores varies with depth. The potential economic lateritic material is found mainly along the crest of the orebody and occasionally in the form of scattered pockets on several isolated terraces that extend to the West. Except for four large plates, limonite covering is generally less than 5 meters and it often brings out the trading saprolite.

Ferronickel production is carried out by using a conventional pyrometallurgical process with a new technology developed by units of research and development of Falconbridge. The process Nickel Smelting Technology, uses modern technology equipment, tested extensively in other heavy industries, and so solves many of the problems encountered with traditional ferronickel plants.

Its design is specifically designed to confine the dust, allowing advanced environmental performance. The process draws heavily on the cement industry has introduced in recent years the recycling and reuse of process gas to save energy. The need to treat fine particles has led to the selection of DC electric furnaces. In the same manner as in steel mills, the furnaces envelope is completely cooled by water. Very versatile furnaces are simple mechanical and metallurgical standpoint. The end result is a semi continuous process characterized by a high level of automation and efficient use of manpower.
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