September 24, 2008

Encouraging Diamond Grades from Trial Mining at Kono Project

Mano River Resources Inc. (“Mano” or “the Company”) the TSX-V and AIM-listed exploration and development company focussed on West Africa, is pleased to announce a progress update on the Kono diamond project in Sierra Leone. The Kono project is a Joint Venture between Stellar Diamonds Ltd (“Stellar”) (49%) and Petra Diamonds Limited (“Petra”) (51%). Mano River is a 63% shareholder in Stellar, which plans to list on AIM, pending market conditions.

On 23rd September 2008 Petra issued its preliminary results announcement for the year ended 30 June 2008 (unaudited) and has made the following statement regarding the Kono Joint Venture:

“Trial mining continues with first tender of diamonds from Sierra Leone. We continue to be encouraged by the results of exploration and trial mining at our Kono project, a joint venture with Stellar Diamonds.

Exploration and trial mining operations at our Kono project in Sierra Leone, a joint venture with Stellar Diamonds, continue to yield encouraging results. The first parcel of Kono test production (1,064 carats) was sold on tender this September, with the Pol-K shaft parcel of 866 carats achieving an average value per carat of US$152.

As diamond production from the trial mining increases over the coming months, we will be able to offset total project expenditure against the revenues generated by regular diamond sales. As trial mining and regular sales continue, we will further establish the parameters for a production decision.

Due to the considerable exploration potential at Kono, a 3,167 line km airborne electromagnetic geophysical survey has been completed by Fugro Airborne Surveys, the objective being the discovery of kimberlite pipes and blows. Processing of the data, which we outsourced to an external expert, is complete and final interpretations should be available before the end of October 2008.”

Karl Smithson, CEO of Stellar commented:

“We are very encouraged by the diamond value achieved from the sale of our first parcel of diamonds from test production at Kono. We maintain our belief that the value will increase with larger parcels, which will provide a more representative sample. We are pleased that, in the current economic climate, there is potential to offset total project expenditure against the revenues generated by diamond sales from trial mining in the coming months. The trial mining is yielding encouraging results and we look forward to working with Petra as we move forward with the Kono project. I look forward to updating our shareholders on the survey results in the coming months.”

For further information on Mano River Resources and Stellar Diamonds Limited, you are invited to visit the Company’s website at or contact:

Mano River Resources Inc
Luis da Silva, CEO
+44 (0) 20 7299 4212

Stellar Diamonds Limited
Karl Smithson, CEO
+44 (0) 77 837 07971

Pelham PR
Charles Vivian / James MacFarlane
+44 (0) 20 7743 6670

GMP Securities Europe LLP
James Hannon
+44 (0) 20 7647 2803

Panmure Gordon (UK) Limited
Edward Farmer
+44 (0) 20 7614 8384

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