September 15, 2005

Sierra Leone Diamond Joint Venture

Mano River Resources Inc. (“Mano” or “the Company”) is pleased to report a progress update on its Sierra Leone diamond joint venture with BHP Billiton

  • Phase 1 Reconnaissance programme completed
  • Numerous significant anomalies generated
  • Follow-up soil sampling and ground magnetic surveys completed over one anomaly
  • BHP Billiton confirms intent to fund up to $2.6million Phase-2 programme

Reconnaissance sampling has been completed throughout the 9,700km2 licence area and sample processing is well advanced in South Africa. Kimberlite indicator mineral anomalies have been generated in seven separate areas that potentially represent new kimberlite clusters in the east of Sierra Leone. Microprobe analysis of samples from two new anomalies has confirmed the presence of G10 garnets, supported by kimberlitic chromite and ilmenite.

Follow-up detailed soil sampling and ground magnetic surveys have already been completed over one garnet-ilmenite-chromite anomaly and results are awaited. Fieldwork, however, has now been suspended for the height of the rainy season, and is expected to resume in late September.

BHP Billiton has confirmed that it wishes to participate in the Phase-2 programme, requiring sole funding of future exploration to $2.6million. If successfully completed, BHP Billiton will acquire a 51% equity interest in the project, with Mano retaining the balance of 49%.

About Mano
Mano is a company focused on the discovery of diamond, gold and iron ore deposits in the Archaean terrain of the highly prospective, under-explored, West African Mano River Union countries of Sierra Leone, Liberia and Guinea. Mano considers the region has the potential to develop into a world-class diamond and gold mining province. The Company has over 25,000km2 under licence, close to one million ounces of gold in resource, a cluster of diamondiferous kimberlite pipes in Liberia and the Kono dykes in Sierra Leone. Joint ventures are in place with Trans Hex Group, Petra Diamonds, BHP Billiton, De Beers, Golden Star, Navasota and African Aura.

On behalf of the Board of Mano River Resources Inc.
Tom Elder
President and CEO

For further information on Mano River Resources and its exploration programme, you are invited to visit the Company’s website at or contact one of the following:

Tom Elder
President and CEO
UK +44 (0) 1235 810 740

Jamie Cumming
Bell Lawrie
UK +44 141 221 7733

Raz Hussein
Controller Canada
+1 (604) 689 1700

Gary Middleton
St Swithins PR Ltd
UK +44 (0)207 929 4391

The TSX Venture Exchange has not reviewed and does not take responsibility for the adequacy or accuracy of this release