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Port Loko, Sierra Leone
History -
In October 2004 Moydow signed an option agreement with Gondwana Investments
Limited to allow Moydow to earn an interest in the Port Loko Bauxite concession in
Sierra Leone. Since the completion of a pre-feasibility study on the project by CAM llc of
Denver. Moydow now hold a 50% interest in the project and a full engineering and
processing review is currently underway.
The Port Loko bauxite concession comprises a large tract of land of over 650 square
kilometres in the North East of Sierra Leone. Exploration on the property in
the past has outlined a resource of some 100 Mt of bauxite, with an average grade of 47%
Al2O3, mainly as gibbsite.
The Port Loko bauxite deposit has been known since the early 1970s when Sieromco, the
Sierra Leone subsidiary of AluSuisse, conducted exploration on the property. Sieromco
explored over a large area about 80 km long and 5 km wide, stretching north and south of
Port Loko.
Sieromco relinquished its rights to the concession in the 1986 and the property lay
dormant. Jupiter Export-Import Ltd., a local Sierra Leone company, obtained rights to the
concession in 1992 under an Exclusive Prospecting Licence. In 1994 Jupiter began active
field work to reestablish the original base lines, tie lines and cross lines. In 1996 Jupiter
acquired an Exclusive Prospecting Licence (EPL 4/96) and spent approximately $US 1
million conducting mapping, exploration, sampling and other work on the property, in
addition to work on the port facilities at Pepel. The focus of Jupiter's activity was in the
central portion of the concession south of Port Loko and north of the Rokel River. This
region represented approximately 30% of the total concession area of approximately 650
km2. Jupiter was able to confirm much of the Sieromco work regarding the size and
quality of the deposit. Overall, Jupiter developed sufficient information to define
approximately 31 million tonnes Indicated Resources and 27 million tonnes Inferred
Resources.
- Studies indicate that the Port Loko deposit is quite heterogeneous, with individual blocks
varying between 70,000 tonnes to over 5 million tonnes. The material with the best
grades and thickenss lies in the central and southern regions of the concession area
known as the Yenkisa, Lungi and Tekeya zones and it is in these areas that Moydow
have, up to now, concentrated their efforts. Overburden averages here approximately 2.1
m. Massive bauxite averages approximately 6.8 m thickness.
One of the key attractive features of the Port Loko bauxite deposits is the presence of a
significant amount of infrastructure. A rail line runs through the centre of the Port Loko
deposit to a major port facility at Pepel. The port has the capability of loading Panamax
size vessels at rates up to 4,000 tonnes per hour. This is one of the few such ports on the
west coast of Africa, comparable with Port Kamsar in Guinea.
Current Status of the Project -
The Port Loko bauxite concession has been extensively explored in the past and feasibility studies have
been prepared at that time. The previous work, together with the study by CAM llc of Denver forms an
excellent basis for the present exploration and technical review program.
From studies of the previous work and the recent pre-fesibility it appears that there is a higher grade
core at the centre of the deposit. Moydow's initial goal was the confirmation here of the earlier results
for an area with approximately 25 million tonnes with an average grade of at least 48% bauxite.
Since 2005, Moydow has executed an exploration program which has included the re-cutting of Sieromco and Jupiter
grid lines, cleaning (122) and deepening and sampling (76) of Sieromco and Jupiter pits, drilling and
sampling of 423 hollow-stem auger holes (total 3,497m), differential GPS surveys, and sample
processing at the Rogberi Exploration camp.
- There are several production scenarios which the Port Loko project lends itself to. The presence of the
higher grade core, together with its proximity to the railway, presents the opportunity for selective mining
and shipping of the ore to an out of country refining facility. This scenario is along the same lines as is
currently being employed by Sierra Minerals Limited at their Mokanjii deposit.
The recent recovery in the aluminium price, however, means that there also exists the potential to develop a
much larger mining operation, which would seek to develop the entire resource base at Port Loko and
process the ore into alumina at a refinery based in Sierra Leone. With this latter scenario in mind, Moydow
and its partners Gondwana have recently commenced discussions with third parties and the Government of
Sierra Leone to evaluate the economics of a refinery and associated facilities to be based in-country.

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