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Extracted Industry




Mining Division

PT.ANDALAS TETRA JAYA, PT.NEO GREISEN MINERAL (has served in Manganese Mine since first of 2008), PT.ANDALAS PERSADA MANDIRI has served in Dolomite & Calcite mine, and PT.NEO FERRO MINERAL has served in Iron Ore mine community.

Manganese is a chemical element that is designated by the symbol Mn and has an atomic number of 25. It is found as the free element in nature (often in combination with iron), and in many minerals. The free element is a metal with important industrial metal alloy uses. Manganese ions are variously colour, and are used industrially as pigments and as oxidation chemicals.

Iron Ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in colour from dark grey, bright yellow, deep purple, to rusty red. The iron itself is usually found in the form of magnetite (Fe3O4), hematite (Fe2O3), goethite, limonite or siderite. Hematite is also known as "natural ore". The name refers to the early years of mining, when certain hematite ores contained 66% iron and could be fed directly into iron making blast furnaces. Iron ore is the raw material used to make pig iron, which is one of the main raw materials to make steel. 98% of the mined iron ore is used to make steel.

Kieserite is a highly unstable magnesium sulfate mineral (MgSO4ĚH2O). It has a vitreous luster and it is coloruless, greysh-white or yellowish. Its hardness is 3.5 and it has a monoclinic crystal system.




1. April 2008, opening new factory of Coconut fiber and husk

2. Opening New location of Manganese in end of May 2008 with quantity target is 5000 tons per month minimal.

3. Joint venture of Iron Ore mine project in Solok-Surian May 2008




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