Dala Project Gem International | Angola Diamond Mining Investment

Dala Project

The Angolan Mining Code

  • A new mining code was introduced in 2011 to provide a modern set of rules that would be attractive to foreign investors.
  • Angolan Government is committed to diversification away from its dependence on oil and gas.
  • The new code provides a system whereby exploration, mining and marketing rights are granted from the onset under the same instrument, thereby ensuring a seamless transition from exploration to mining.
  • The diamond industry falls under the management of the state-owned company ENDIAMA – foreign companies work in partnership with ENDIAMA.
  • Angola is an official signatory of the Kimberley Process Certification Scheme and is filling the role of Chairman of the Kimberley Process in 2015.
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Outstanding Diamond Potential

  • Excellent geological credentials for hosting world-class deposits.
  • Best diamond potential is in Lunda Norte and Lunda Sul in the NE.
  • Only 40% of prospective areas have been explored using modern techniques.
  • Kimberlites occur in clusters that collectively define the Lucapa Trend.
  • World-class kimberlites deposits such as the Catoca & Camatchia.
  • Extensive alluvial deposits – Cretaceous Calonda gravels and Quaternary alluvial deposits.

The Dala Diamond Concession

  • Offers excellent potential for the immediate development of alluvial deposits, and with systematic exploration, the discovery of diamondiferous kimberlites.
  • At 3,000 km2 it is the largest allowable size for a diamond concession under the Angolan Mining Code.
  • The proximity to Saurimo provides convenient access to services and supplies.
  • Over 100 km of exposure of two of the best diamond-bearing rivers in Angola, the Tchicapa and Luachimo.
  • Large, high value diamonds currently being recovered in small scale garimpeiro operations within the concession.

Kimberlite potential:

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  • Airborne geophysical survey previously flown over the entire concession (15,000 line km) by Moydow Mines.
  • Follow-up work included 102 ground magnetic survey grids over airborne anomalies.
  • 29 compelling exploration targets identified from this work.
  • 11 targets drill tested – 4 confirmed kimberlite pipes.
  • Work stopped in 2009 in response to the Global Economic Crisis.

Project Geology

  • The Tchicapa & Luachimo Rivers cut into basement lithologies providing excellent potential for sampling of the diamond-bearing Cretaceous horizons.
  • Angolan Kimberlites are Cretaceous in age (~99 my), with a subordinate Tertiary (~23 my) population.
  • Diamonds released during erosion are concentrated in the river systems and the basal unit of the Calonda Formation.
  • Extensive exposure of diamond-bearing Calonda Formation rocks occur along the length of the Tchicapa River.
  • A variety of Quaternary alluvial deposits occur within the river valleys, e.g. river-bed, terrace & hillslope deposits.

Successful Garimpeiro Operations

A group of garimpeiros is conducting small scale alluvial mining within the Dala Concession. Despite only processing small volumes of gravel, they regularly recover high quality diamonds, including a 47.36 carat gem recovered from the Luachimo River in July that has an estimated value of approximately USD$1 million (~$20,000/ct).

Established Diamond Mining Industry

Catoca

Located just 25 km north of the Dala Project, and with a surface area of 64 hectares, the Catoca Mine represents the fifth largest diamond mine in the world.

Some facts about Catoca:

  • Owned and operated by a joint venture – ENDIAMA (32.8%), Alrosa (32.8%), LLV (18%) & Odebrecht (16.4%).
  • An open pit mine currently at 200m, with a planned ultimate pit depth of 600m by 2034.
  • Production in 2013 was 6.6 million carats worth US$594 million – 35% gem quality compared to the global average of 20%.
  • Catoca accounts for 6% of world diamond production by volume.
  • Reserves of 271 million tonnes of kimberlite at a grade of 70 carats per hundred tonnes for a total of 189 million carats of diamonds.
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