Dia Bras Exploration Inc.

Dia Bras Exploration Inc.

September 18, 2008 08:02 ET

Dia Bras Reports 8.4 Metres of 4.97% Cu and 25.45% Zn From the Titanic 2 Zone, Bolivar Project

MONTREAL, QUEBEC--(Marketwire - Sept. 18, 2008) - Dia Bras Exploration Inc. (TSX VENTURE:DIB) is pleased to provide new drilling results from the ongoing 20,000-metre exploration program at its Bolivar project.

To view the Table of Assays, please visit the following link: http://ww.diabras.com/en/newscenter/2008/pr_2008_09_16_assays.pdf

Drilling Results

More than 2,100 metres of underground drilling were performed during the past three months, mostly in the San Angel and San Francisco Areas. Some of the most spectacular assay results were observed in the Titanic 2 Zone. Hole DB08BM166 intersected 8.4 metres (estimated true width of 5.9 metres) of 4.97% Cu, 25.45% Zn, 29.3 g/t Ag and 0.07 g/t Au, while hole DB08BM171 intersected 4.7 metres (estimated true width 1.14 metre) 5.17% Cu, 23.46% Zn, 41.4 g/t Ag and 0.11 g/t Au. More drilling will be done in this area to assess the lateral continuity of the Titanic lens towards the ENE.

At the El Gallo zone, 1,800 metres of surface drilling were completed, and best results from the ongoing surface drilling program include 9.0 metres core length (8.0 metres estimated true width) of 2.31% Cu, 1.35% Zn, 51.7 g/t Ag and 0.58 g/t Au in hole DB08B263 and 9.6 metres (7.7 metres estimated true width) of 2.4% Cu, 0.13% Zn, 36.75 g/t Ag and 0.14 g/t Au in hole DB08B269.

These results will be integrated in the new resource calculation which is being conducted by SGS Geostat that should be made available in October and will be the foundation of the Feasibility Study of the Bolivar Project.

Bolivar Mine Area (Alta Ley)

Surface and underground diamond core drilling at Bolivar Alta Ley are aimed at continuing to define the Rosario and Fernandez mineralized trends while also identifying potential new zones of mineralization, as well as further delineating the Selena, Titanic and Rosario massive sulfide lenses.

In the Bolivar Alta Ley zone, the best underground drill intercepts were observed in the newly discovered San Angel Zone (refer to news release May 28, 2008) where DB08BM177 intersected 5.4 metres core length (1.85 metres estimated true width) of 2.46% Cu, 15.33% Zn, 37.4 g/t Ag and 0.23 g/t Au, and in hole DB08BM147 that intersected 4.7 metres core length (estimated true width of 3.0 metres) of 2.5% Cu, 6.9% Zn, 44 g/t Ag and 0.06 g/t Au.

Bolivar Mine Area (San Francisco)

The San Francisco zone is a newly opened underground area. A 160-metre positive ramp from Alta Ley reached this zone at the beginning of July, and definition drilling and development work will be undertaken soon. This zone was discovered in 2004 and 2005 during the surface drilling exploration program. Underground drilling has enabled the defining of a block of mineralized material that will be included in the updated resource statement, which should be announced in October.

The best underground intersections in this area came from hole DB08BM170 that intersected 4.80 metres core length (estimated true width of 1.24 metres) of 0.29% Cu, 12.57% Zn, 13.8 g/t Ag and 0.04 g/t Au. Other holes of interest in this area include DB08BM170 that intersected 8.0 metres core length (2.07 metres estimated true width) of 0.4% Cu, 3.04% Zn, 8 g/t Ag and 0.14 g/t Au.

El Gallo Area

In the El Gallo area, drilling to complete the new resource calculation enabled the discovery of a number of high-grade copper - bornite zones (ref. press release of April 8, 2008). 5,800 metres of drilling have so far been completed in 2008, bringing the total drilling in this area since its inception in 2007 to 10,326 metres.

Other relevant results in this area include 8.9 metres (8.7metres estimated true width) of 1.38% Cu, 5.47% Zn, 73.5 g/t Ag and 0.4 g/t Au and a second intersection grading 2.23% Cu, a trace of Zn, 35 g/t Ag and 0.7 g/t Au over 6.0 metres (estimated true width of 5.9 metres) in hole DB08B266, which was drilled in an area between the San Francisco lens and the El Gallo zone. Consequently, this could indicate a potential continuity of the El Gallo towards the WNW, thus increasing its size significantly. More drilling is planned to determine the extent of this zone.

La Montura Area

Due to heavy rain and dangerously unstable slopes, no drilling was realised in this area during the last three months.

2008 Drill Program

Since the beginning of 2008, 18,714 metres of core diamond drilling have been completed at Bolivar (surface and underground).

Method of analysis

Samples were prepared at the Chemex lab facility in Chihuahua, Mexico, and analyzed by ICP and AA methods at their facilities in Vancouver, Canada. Diamond drill samples sent for analyses consisted of half NQ-size diamond core split on site, prepared by the ALS Chemex sample preparation laboratory in Chihuahua, Mexico, and assayed for Au by 50 g fire assay with AA finish, and for Ag by AA on 50 g split sample at the ALS Chemex North Vancouver Laboratory. Assays for Pb, Zn and Cu are done by Induction Coupled Plasma (ICP) at Chemex.

Quality control

The quality assurance-quality control (QA-QC) of Dia Bras has been described in detail in both Scott Wilson Roscoe Postle Associates 43-101 reports of December 2006 at Cusi and October 2005 for Bolivar.

The technical content of this news release has been approved by Thomas L. Robyn, Ph.D. Chairman of the Board of Dia Bras, a Qualified Person as defined in NI43-101.

About Dia Bras

Dia Bras is a Canadian exploration mining company focused on precious and base metals in the State of Chihuahua, in northern Mexico. The Company is committed to developing and adding value to its assets - the Bolivar copper-zinc project and the Cusi silver mining camp. The Company trades on the TSX Venture Exchange under the symbol "DIB".

Forward-looking statements:

Except for statements of historical fact all statements in this news release without limitation regarding new projects acquisitions future plans and objectives are forward-looking statements which involve risks and uncertainties. There can be no assurance that such statements will prove to be accurate; actual results and future events could differ materially from those anticipated in such statements.

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

Contact Information

  • Dia Bras Exploration
    Daniel Tellechea
    President & CEO
    Dia Bras Exploration
    Nathalie Dion
    Investor Relations
    514-393-8875 ext. 241