Print text

Dia Bras Exploration Inc. (TSX-V: DIB) (“Dia Bras”) is pleased to report positive results of continued drilling and underground drifting programs at its Bolivar pilot mine, in Chihuahua State, Mexico.  Of particular note is the ongoing mine development of the Guadalupe zone, where access drifts in three levels are delineating a high-grade massive copper-zinc sulfide zone with grades higher than previously anticipated.

The Guadalupe zone was first discovered with two drill hole intercepts in 2004 and mine development access in the area was intermittent as the Company was focusing on mining the Titanic and Selena zones in those years.  Further drilling in early 2009 of the Guadalupe zone identified the larger extent of mineralization prompting further development efforts in the area.  Mining began on Levels 3 & 7 during March 2009 and on Level 8 during May 2009.   Commenting on the results, Daniel Tellechea President and CEO stated "The economic importance of this zone is increasing more-and-more as work progresses.  Sampling of drifts and stopes demonstrates the high grade nature of the Guadalupe mineralization.  The extent of the Guadalupe zone, however, has not been determined as it is still open in all directions. The results reported here also demonstrate the Company’s ability to continue shipping high-grade rock to its Malpaso mill until the new mill is operational on site at the Bolivar mine. "

The table below summarizes the significant drill results at Guadalupe zone:

Guadalupe zone has been accessed on three levels, Levels 3, 7 & 8, where massive high-grade copper-zinc mineralization occurs.  Samples are collected from drift faces, backs and walls over widths of 1.5-2.0 meters, and muck piles are also sampled.  Sampling returned the following results:

The accompanying maps and sections show the locations of various drill holes and underground sites where sampling has been done.

Mining at Bolivar is currently being done from the following locations: Guadalupe, Rebeca, San Francisco, Fernandez, Manto Gordo, San Angel, La Foto, Bismark, Rosario and Increíble zones.  By mining from various zones, the Company can blend ore to the optimal grades for the circuits at the Malpaso mill.  The third quarter production report, which will be released in October, will provide specific numbers for the grade of mill feed.

See Bolivar Mineralized Zones map, available at the following address: http://www.diabras.com/en/newscenter/2009/pr_09_30_Bolivar_Map1.pdf).

See Guadalupe Composite Cross Section, available at the following address: http://www.diabras.com/en/newscenter/2009/pr_09_30_Bolivar_Map2.pdf).

See Guadalupe Long Section – Foot Wall, available at the following address: http://www.diabras.com/en/newscenter/2009/pr_09_30_Bolivar_Map3.pdf).

See Guadalupe Long Section – Foot Hanging Wall, available at the following address: http://www.diabras.com/en/newscenter/2009/pr_09_30_Bolivar_Map4.pdf).

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 analysis consisted of half NQ-size and BQ-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 RPA’s 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., CPG, RPG, Chairman of the Board of Dia Bras, a Qualified Person as defined in NI 43-101.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

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.