firawa new drilling results

MURCHISON UNITED N.L

AIM SYMBOL: MUU ASX SYMBOL: MUR

September 4, 2007

Murchison United NL: Further Significant Uranium Intersections From Firawa Prospect-Guinea, West Africa

Highlights


Final assay results now received from May 2007 RC drilling program at the Firawa Prospect (Guinea, West Africa) with best results including:

Drill Intersection Section U3 O8 Maximum 1m
Hole RC Length (m) (m) (ppm) Section U3 O8 (ppm)



FRW35 12 13 - 25 771 995



FRW14 6 39 - 45 715 883



FRW34 4 53 - 57 615 840



FRW33 20 22 - 42 524 726



FRW33 2 48 - 50 630 680



FRW15 8 20 - 28 409 693



Uranium mineralization confirmed over 2km strike length within previously identified 5km uranium anomaly.

Builds on previous results including 10m @ 652ppm U3O8 (including 1m @ 1,325ppm U3O8), 5m @ 749ppm U3O8 (including 1m @ 1,020m U3O8) and 14m @ 555ppm U3 (including 1m @ 680ppm U3O8).

Expanded drilling program planned targeting a JORC compliant resource estimate for Firawa.
Drilling Results

Murchison United NL (ASX:MUR)(AIM:MUU) is pleased to announce that the Company has now received all assay results from its initial uranium drilling program conducted in south-east Guinea, West Africa.

The program, comprising 29 RC drill holes for a total of 1,809m, was conducted by Murchison United during May 2007 at the Firawa Prospect (see Figure 1), one of three large exploration concessions held by Murchison in Guinea. The program was designed to target a highly prospective 2km section of a previously identified uranium anomaly which extends for more than 5km within the Firawa exploration licences.

Fig.1 Location of Murchison United's Guinea Projects is available at the following web link:

http://www.ccnmatthews.com/docs/muu0904fig1.pdf

The drilling was undertaken in a deep laterite weathered soil profile. The samples, which consisted mostly of clay - in many sections wet - were sent to the ALS Chemex laboratory in Bamako, Mali, for preparation and then forwarded for analysis to the ALS Chemex laboratory in Vancouver, Canada. The uranium mineralization at Firawa is believed to occur in the clay.

The samples were high temperature dried before splitting and crushing. Additional samples have been collected from sections indicating the highest radiation, in order to further examine the clay minerals and assess optimal methods of uranium extraction.

The uranium mineralisation follows an East - West tectonic structure, interpreted as a fault zone, over a distance of five kilometres. The recent R/C drilling has been conducted over a two kilometre section of this previously identified anomaly which is regarded as most prospective.

Geological logging of the RC drill chips has indicated the presence of gneiss, pegmatite, quartz veins and mafic rocks, potentially representing dykes related to the faulting. At this stage the genesis and delineation of the uranium mineralisation is unclear.

One possibility is that uranium dissolved in water along the fault has been captured in supergene clay minerals, however forthcoming mineralogical studies are expected to provide further clarification.

A topographical map of the area showing the results of soil sampling carried out previously and the location of the drill holes is shown in Fig. 2 below:

Fig.2 Topographical map of the Firawa Prospect showing drill hole locations (" + ") is available at the following web link:

http://www.ccnmatthews.com/docs/muu0904fig2.pdf

A full table of all drilling results received to date from the Firawa Prospect is attached to this release in Appendix 1.

Commenting on the results, Murchison United's Managing Director, Mr Mark Reilly, said the additional results confirmed the success of the Company's first drilling program in West Africa, with significant uranium mineralization now defined over a 2km strike length at the Firawa Prospect.

"We are very pleased with the outcomes, which have confirmed the prospectivity of these tenements and significantly advance our exploration aspirations in this region," Mr Reilly commented.

"While the drilling completed to date is not sufficiently close-spaced to estimate a JORC compliant resource, it has provided the basis for an expanded drilling program which we aim to commence early 2008 which will target an initial JORC compliant resource," he added.

"With drilling due to commence soon in Mauritania, we are looking forward to a particularly exciting period ahead as we aim to define uranium resources on two fronts," Mr Reilly concluded.

Murchison United has secured an extensive portfolio of uranium exploration projects comprising some 13,600km2 of highly prospective tenements in Mauritania and Guinea, West Africa. Its objective is to delineate significant new uranium deposits within these under-explored terrains.

Murchison United NL is an Australian-based no liability company whose principal activity is minerals exploration. The company currently has uranium exploration projects in Mauritania and Guinea in West Africa and copper interests in the Millennium copper leases in Cloncurry, Queensland and the Maroochydore copper project in Western Australia.

Shares in the company are listed on both the Australian Stock Exchange (ASX:MUR) and the Alternative Investment Market (AIM:MUU) of the London Stock Exchange.

For further information regarding this announcement, please call Mark Reilly.

Murchison's Nominated Advisor for the AIM market is RFC Corporate Finance Ltd.

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