YANDERA PROJECT

Definitive Feasibility Study

In October 2007 Marengo commenced a Definitive Feasibility Study ("DFS") on the Yandera Project which is due for completion in 2011. The DFS is directed towards the development of the Yandera Central Porphyry deposit.

Yandera Central Porphyry System
Link to enlargement (106 kb PDF)

The DFS is based on the following;

Open-cut mining operation over an initial 20 year time frame, with an initial focus on the higher grade zones of the deposit.
Ore processing commencing at 25Mtpa with capacity for increased throughput.
Crush and grind near mine with ore slurry line to a coastal concentrator, producing separate copper and molybdenum sulphide concentrates.
Detailed investigation of local rivers for the generation of clean, low cost hydroelectric power supply.
Implementation of world class environmental standards and community relations initiatives to ensure a successful project for all stakeholders.

Section A-B
(Gremi Zone)
Link to enlargement
(116 kb PDF)

Section C-D
(Gremi Zone)
Link to enlargement
(117 kb PDF)

Section E-F
(Omora Zone)
Link to enlargement
(102 kb PDF)

Yandera Project – Drilling Update

Drilling at the Yandera Central Deposit continues to generate significant intersections of both copper and molybdenum sulphides, from within both the current resource envelopes, together with extensions at the Imbruminda and Dimbi-Gamagu zones.

In addition, an initial four hole, deep drilling program in 2010 delivered positive results.

Since January 2011, five diamond drill rigs have recommenced operations at Yandera. Activities include further in-fill drilling together with targeting strike and depth extensions.