Corporate Info
Corporate Info Business Units Bumi Resources Minerals | Bumi Resources Minerals www.bumiresourcesminerals.com/ |
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 The decision in 2010 to assemble all non-coal mining assets of BUMI and create Bumi Resources Minerals reflected a need to focus strategy on bringing these assets into production. BRM was listed on the Indonesia Stock Exchange in December 2010 and is currently under independent management focused on bringing properties into production. BUMI holds an 87.11% interest in BRM. BRM, with percent of BRM’s effective ownership, consists of:
BUMI owns an 80% interest in Gorontalo Minerals, a copper and gold concession. Gorontalo Minerals has Contract of Works rights to a 36,070 hectare mining concession located in the Bone Bolango Regency in the province of Gorontalo. BUMI has obtained the Exploration Borrow & Use Permit in December 2010 and exploration drilling works commenced in November 2011 at the Block-1 Cabang Kiri and Sungai Mak sites. This is in the effort to prove up the project’s resource estimate via Joint Ore Reserves Committee (JORC) standard in 2012. The conceptual development model is to build a 25 million tone per annum (feed tonnes) copper concentration plant that would be able to process 0.6% of copper and 0.6 grams per tonne of gold material.
PT Gorontalo Minerals
This is in the effort to prove up the project’s resource estimate via Joint Ore Reserves Committee (JORC) standard in 2012. The conceptual development model is to build a 25 million tone per annum (feed tonnes) copper concentration plant that would be able to process 0.6% of copper and 0.6 grams per tonne of gold material. Citra Palu obtained a Borrow & Use Exploration Permit in September 2011 and consequently began exploratory drilling in October 2011 in the Block-1 Poboya gold prospects. Citra Palu plans to prove up the resource size in relevant sites via JORC standard in 2012. Citra Palu has a Contract of Work for a mining concession of 138,889 hectares in Central Sulawesi and South Sulawesi, Indonesia.
PT Dairi Prima Minerals
The concession has one of the highest grades of zinc deposits in the world (11.5% Zn, 6.8% Pb, 7.5 Ag g/t). The total resources size from Anjing Hitam, Lae Jahe, and Base Camp sites (including reserves size) amount to 25 million tonnes of ore. Notable progress was achieved in the effort to commence the first production. In May 2011, the Presidential Decree No 28/year 2011 was issued which allows underground mining under protected forest areas in Indonesia. In November 2011, the company obtained an in-Principle Agreement for underground mining for its concession.
PT Newmont Nusa Tenggara
The Batu Hijau project has 8.4 billion lbs of copper and 7.9 million oz of gold reserves with the reserve life of over 25 years. Within the NNT’s Contract of Works, there are other copper and gold prospects from the Elang and Rinti sites, in addition to the Batu Hijau project. Elang’s copper and gold deposits are estimated to be larger than Batu Hijau’s.
Konblo Bumi Inc.
Bumi Resources Japan Co. Ltd.
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BUMI owns an 80% interest in Gorontalo Minerals, a copper and gold concession. Gorontalo Minerals has Contract of Works rights to a 36,070 hectare mining concession located in the Bone Bolango Regency in the province of Gorontalo. BUMI has obtained the Exploration Borrow & Use Permit in December 2010 and exploration drilling works commenced in November 2011 at the Block-1 Cabang Kiri and Sungai Mak sites.
BUMI owns 80% shares of PT Dairi Prima Mineral which is a zinc and lead project in North Sumatra. The total reserves and resources have increased by 104% and 25% respectively based on JORC estimates completed by CSA Global in October 2010 and Mining Plus Pty Ltd in February 2011. The total reserves consist of 11 million tonnes ore from Anjing Hitam and Lae Jahe sites, which translate into a mine life of more than 15 years.
Newmont Nusa Tenggara’s Batu Hijau project is a large scale, open pit copper and gold mine located in Sumbawa, Nusa Tenggara. BRM currently owns 18% effective interest in NNT which includes the producing Batu Hijau project, and the prospective Elang Rinti sites. Batu Hijau is one of only three mines in the world with total ore tonnage in excess of 1 billion tonnes and gold grades higher than 0.2 gram/tonne. It is one of the lowest cost gold or copper operations in the world, with US$1.1/lb cash cost for copper and US$476/oz for gold.
Konblo Bumi has seven exploration licenses to explore for gold, diamonds and base metals in southern Liberia, West Africa. Two licenses were awarded in 2009, and the remaining five were awarded in January 2010. The current focus is on two diamond license areas northwest of Liberian capital Monrovia and east of the town of Kakata. Surveys in a number of areas display features strongly indicative of kimberlite pipes in areas as large as five hectares. Licenses located in southern Liberia have excellent potential for economic gold discoveries.