DIA BRAS SELLS A NICHROMET LICENCE TO ECU SILVER MINING INC.

Montréal, Québec, - May 19, 2004 -

Dia Bras Exploration Inc. (the “Company” or “Dia Bras”) is pleased to announce additional results for hole #3 located in Valenzuela-Incredible zone. The high-grade 9-meter section grading 4.9% Cu, 1.44 g/t Ag and 4.38% Zn, which has previously reported, is in fact part of a 100-meter mineralized section which begins at surface and has a grade of 0.9% Cu, 22 g/t Ag and 0.4% Zn. The first 22 meters of this hole from surface has a grade of 2.0% Cu, 58 g/t Ag and 2.05% Zn.

Hole #3 extends the zone of the Valenzuela-Incredible mineralization from previously reported Hole #12 which intersected 49 meters grading 1.07% Cu, 17.4 g/t Ag and 0.77% Zn from surface. These two holes confirm the discovery of a mineralized breccia approximately 100 meters in diameter and 500 meters in depth. Two galleries have allowed Dia Bras to better understand this zone which outcrops at surface and therefore is amenable to open-pit mining methods. The Company has drilled four additional holes in order to quantify the open-pit potential of this zone.

The total of 10 mineralized structures discovered to date over the 5-kilometer strike length of the Val-Valenzuela copper zone, all outcropping at surface, increasingly support the geological interpretation of this zone as demonstrating the potential for a large open-pit bulk tonnage copper/zinc/silver/gold deposit.

The Bolivar West zone at Val-Valenzuela broadens the open-pit potential of this area, as demonstrated by Hole #18, which intersected a 44-meter zone from surface at a grade of 1.1% Cu, 44 g/t Ag and 0.49 g/t Au. The Bolivar West zone extends over two kilometers and a section of 500 meters of length outcrops on surface with significant quantities of chalcopyrite (Cu). The company is currently drilling the lateral extension of this 500-meter zone in order to quantify the open-pit potential.

Dia Bras has to date drilled 22 holes on the Val-Valenzuela polymetallic structure, and, so far, six of the ten newly identified mineralized structures have been initially drill tested – the Incredible, Bolivar West, Bolivar North, and the El Gallo 1, 2 and 3 structures – and demonstrate the potential for substantial open-pit-type mineralization.

Another four mineralized zones at Val-Valenzuela have been identified via grab and channel sampling, including the La Montura, La Pequeña, Val and La Central structures. These indicate surface copper grades in excess of 3.5% copper over widths of 6 meters, and represent the opportunity to further expand the significant open-pit potential of the Val-Valenzuela zone. The Pequeña zone, which averages 3.84% copper at surface, also carries 7 oz./silver per tonne over six meters, and the Company intends to drill this and the other nearby structures shortly.

The Company currently has four drills on the property. Two are located on the copper zone and the other two have commenced drilling the high-grade San Jose silver property that has four veins which have been mined in the past with values exceeding 100 oz. Ag/t.

-30-

For further information contact:

Réjean Gosselin
President

The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this press release.