Breaking News

Dia Bras Announces Results From its Bolivar Pilot-Mining Program for the First Quarter 2008

09:57 EDT Thursday, May 15, 2008

MONTREAL, QUEBEC--(Marketwire - May 15, 2008) - Dia Bras Exploration Inc. (TSX VENTURE:DIB) is pleased to report the first quarter 2008 results from its Bolivar pilot-mining program in Chihuahua, Mexico.

Highlights

- Production value of US$6.9 million in Q1-2008, a 32.69% increase over Q1-2007

- Record production of copper concentrate with 2,249 DMT produced

- Costs improvement contributes to generate a US$3.8 M direct operating cash margin

During the first quarter of 2008, the Company processed 32,595 tonnes of material from the Bolivar Mine property averaging grades of 2.35% Cu and 7.26% Zn, producing 2,249 DMT of copper concentrate and 3,448 DMT of zinc concentrate compared with 30,014 tonnes of material processed, with average grades of 1.34% Cu and 6.77% Zn, producing of 1,172 DMT of copper concentrate and 2,987 DMT of zinc concentrate in 2007.

First quarter production value amounted US$6.9 million, a 32.69% increase over last year's corresponding period value of US$5.2 million. The increase in production value compared to Q1-2007 is mostly attributable to higher copper grades, the strong performance of copper market prices and increased mill throughput. Increased production value from higher zinc grades compared to last year period was offset by the decrease in zinc market prices during the quarter.

A summary of comparative statistics for 2008 and 2007 is shown in the table below.

BOLIVAR PILOT MINING / Summary of the First Quarter 2008 --------------------------------------------------------------------------                                                                          %                                Forecast      Actual      Actual  Variation                                                                       2008                                                                       over                                 Q1-2007     Q1-2008     Q1-2007       2007 -------------------------------------------------------------------------- Tonnes processed                 32,000      32,595      30,014       8.60 Daily throughput                    366         373         343       8.75 Copper grade                       1.40%       2.35%       1.34%     75.37 Zinc grade                         8.00%       7.26%       6.77%      7.23 Copper recovery                   82.00%      88.33%      81.62%      8.22 Zinc recovery                     88.00%      80.81%      84.61%     (4.49) Copper concentrate  production DMT                   1,355       2,249       1,172      91.89 Zinc concentrate production DMT   3,949       3,448       2,987      15.43 Total production  of copper (pounds)             806,560   1,479,684     722,259     104.86 Total production  of zinc (pounds)             4,962,446   4,391,251   3,788,150      15.92 Average price of  copper per pound, $US            $2.80       $3.45       $2.69      28.25 Average price of  zinc per pound, $US              $1.00       $1.08       $1.57     (31.21) (in US$millions) Total net smelter  production value(1)(2)(3)       $5.3 M      $6.9 M      $5.2 M      32.69 Direct operating cash costs  (including development)  (1)(2)(3)                       $3.1 M      $3.1 M      $3.7 M      (16.2) -------------------------------------------------------------------------- Direct operating cash  margin (FOB Malpaso Mill)  (1)(2)(3)                       $2.2 M      $3.8 M      $1.5 M      153.3 -------------------------------------------------------------------------- Operating cash costs/DMT  (including development)  (1)(2)(3)                       $98.00      $95.59     $121.97     (21.60) -------------------------------------------------------------------------- (1) Non-GAAP measures: The Company reports net smelter production value     (net treatment of refining charges), direct operating cash costs     (including development), direct operating cash margin (FOB Malpaso     mill) and operating cash costs/DMT (including development) even if they     are non-GAAP measures to indicate the approximate value of the year's     sales, and to isolate the measure of pilot-mining operation cost     activities less amortization and depreciation. The Company believes     this is useful supplemental information. However, it should not be     considered as a substitute for measure of performance prepared in     accordance with GAAP. (2) Net smelter production value is calculated using quarterly average     current metal prices which may be different from final prices (3) Before amortization  

The Company's total concentrate production is sold to MRI Trading AG ("MRI"), a Swiss-based, privately-owned commodity trading company, pursuant to a standard concentrate purchase agreement. Total sales during the quarter amounted to US$6.75 million (US$5.69 million in the corresponding period of 2007). Total provisional billings to MRI during the quarter amounted to US$6.9 million. In addition during the quarter, the Company settled negative final billings related to 2006/2007 shipments in the net amount of US$1.1 million.

It is important to note that Bolivar is not at a commercial production stage. The completion of a feasibility study is required to confirm the economic viability of a property before it is brought to commercial production. The Company expects to complete sufficient exploration work on the Bolivar property and extensions to start a feasibility study in 2008.

The Company's current cash position is approximately US$3.4 million.

Annual General Meeting of Shareholders

The Company invites you to attend its Annual General Meeting of Shareholders to be held at the Queen Elizabeth Hotel, 900 Rene-Levesque Blvd. West, Montreal, Quebec, at 10:00 a.m. (local time) on June 4, 2008. The Company will present a review of the past year, its first quarter 2008 results and will also provide an update on its operations and development projects. The presentation will also be available on Dia Bras' Website, www.diabras.com.

About Dia Bras

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

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

FOR FURTHER INFORMATION PLEASE CONTACT:

Dia Bras Exploration Daniel Tellechea President & CEO 514-393-8875 ext. 241    

Dia Bras Exploration Nathalie Dion Investor Relations 514-393-8875 ext. 241  www.diabras.com