Dia Bras Exploration Inc.
TSX VENTURE : DIB

Dia Bras Exploration Inc.

May 18, 2006 11:49 ET

Dia Bras Reports More Drill Hole Results With Some High Grade Sections Assaying 23.22% Zinc and 5.08% Copper

MONTREAL, QUEBEC--(CCNMatthews - May 18, 2006) - Dia Bras Exploration Inc. (TSX VENTURE:DIB)

Company outsources drilling program to focus on feasibility study and acquisitions

Dia Bras Exploration Inc. is pleased to announce the results of 32 underground and surface drill holes at its Bolivar property, targeted all along the zones where the Company expects to encounter numerous copper and iron skarns, as reported in Table 1 below and the drill hole locations are shown on the map attached.

Very high grade sections are reported as in hole 14 where 21 meters assayed 23.22% Zn and 5.08% Cu. The silver content is steady at more or less 60g/t with a peak at 400g/t locally. Gold content ranges from traces to 2.6 g/t.

Over the last four months the company through its Bolivar pilot mining program has milled ore averaging combined grades of 15.6% (13.28% Zn et 2.38 % Cu).

The Company also signed a new drill contract for 25,000 meters - with an option for 50,000 meters - with Canmex, a Canadian drilling company operating in Northern Mexico, using the Company's own equipment. This will free up time for the Company to pursue its pilot-mining project and focus on acquisitions. Essential data on costs, logistics, grade, recovery and metallurgy will allow the Company to finalize a feasibility study for a possible large mill on-site at Bolivar, planned for 2008.

The mineralization of the South Bolivar copper-iron skarn is similar to that of the large copper-iron skarns of the Yerington, Nevada, copper porphyry-skarn deposits. The Yerington skarns are large tonnage and high grade, such as the Pumpkin Hollow (Lyon) skarn reported by the Nevada Bureau of Mines and Geology at 250 million tonnes averaging 0.3% Cu and 40% Fe with a high grade zone of 29 million tonnes averaging 1.2% Cu. Dia Bras is targeting similar tonnes and grades in its ongoing exploration of the South Bolivar copper-iron skarn.



Table I - Drill Results - Bolivar Mine

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MINA BOLIVAR (UNDERGROUND DRILLING)
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Cu Zn Au Ag
Hole From To Length % % g/t g/t
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DB05BM002 10.5 12.0 1.5 0.63 2.59 0.21 46.80
DB05BM002 13.5 19.5 6.0 0.42 3.59 0.16 30.48
DB05BM002 28.0 29.0 1.0 0.79 3.76 0.01 5.30
DB05BM002 29.0 33.0 4.0 1.65 0.08 0.26 59.70
DB05BM002 45.0 58.0 13.0 0.92 0.00 0.36 21.63
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DB05BM003 14.0 15.5 1.5 2.35 4.67 0.72 113.53
DB05BM003 21.0 35.0 14.0 0.53 2.69 0.06 12.91
DB05BM003 36.0 43.0 7.0 1.47 0.03 0.34 41.54
DB05BM003 53.0 54.0 1.0 1.50 0.06 0.66 21.40
DB05BM003 62.0 64.5 2.5 1.69 0.04 0.13 6.24
---------------------------------------------------------------------
DB05BM004 0.8 3.0 2.2 0.42 3.20 0.30 41.95
DB05BM004 12.2 15.0 2.8 0.97 3.97 0.57 75.40
DB05BM004 15.5 22.5 7.0 1.42 2.57 0.66 140.04
DB05BM004 25.5 27.0 1.5 0.90 2.30 0.20 35.60
DB05BM004 37.5 39.0 1.5 0.10 2.40 0.00 1.20
DB05BM004 45.0 46.5 1.5 0.20 2.70 0.00 3.30
DB05BM004 49.5 55.5 6.0 1.12 5.59 0.05 14.90
---------------------------------------------------------------------
DB05BM005 14.5 16.0 1.5 6.75 5.76 0.08 69.40
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DB05BM006 3.0 7.5 4.5 0.84 3.53 0.00 31.20
DB05BM006 14.7 19.5 4.8 1.77 4.55 0.31 71.65
DB05BM006 63.6 73.5 9.9 2.99 14.94 0.06 27.14
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DB05BM007 0.5 1.5 1.5 1.44 14.05 0.92 90.90
DB05BM007 6.5 9.5 3.0 1.10 6.11 0.00 37.15
DB05BM007 11.0 12.5 1.5 0.90 4.50 1.10 84.90
DB05BM007 12.5 20.0 7.5 1.29 12.72 0.09 27.00
DB05BM007 84.0 85.5 1.5 1.00 6.10 0.10 30.10
DB05BM008 7.5 9.0 1.5 0.50 8.62 0.06 54.60
DB05BM008 16.5 24.0 7.5 1.13 7.68 0.20 52.02
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DB05BM009 0.0 2.0 2.0 0.50 4.50 0.33 39.15
DB05BM009 10.0 11.5 1.5 0.30 2.71 0.03 29.40
DB05BM009 15.0 17.0 2.0 1.74 1.04 0.06 27.25
DB05BM009 20.0 22.0 2.0 0.40 2.90 0.12 25.45
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DB05BM010 4.5 7.5 3.0 0.80 5.10 0.15 9.80
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DB05BM011 24.5 33.0 8.5 0.50 4.70 0.10 40.50
DB05BM011 33.0 37.5 4.5 1.90 20.00 0.25 59.90
DB05BM011 37.5 40.5 3.0 1.60 0.70 0.01 26.20
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DB05BM012 3.0 10.5 7.5 1.00 3.70 0.00 25.10
DB05BM012 15.8 19.5 3.8 1.80 5.80 0.30 63.80
DB05BM012 70.5 72.3 1.8 3.48 30.00 0.13 26.80
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DB05BM013 2.0 5.5 3.5 0.50 4.40 0.10 42.90
DB05BM013 14.0 24.0 10.0 0.89 4.96 0.30 62.40
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DB05BM014 65.0 86.0 21.0 5.08 23.22 0.11 64.37
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DB05BM015 16.5 19.5 3.0 5.09 3.72 0.07 50.20
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DB05BM016 9.0 12.0 3.0 3.10 3.73 0.15 122.45
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DB05BM017 63.0 64.5 1.5 3.23 0.04 0.10 33.90
DB05BM017 66.0 67.5 1.5 2.31 0.00 0.06 43.70
DB05BM017 73.5 75.0 1.5 2.10 0.10 0.71 35.90
DB05BM017 106.5 109.5 3.0 1.30 0.70 0.10 26.90
DB05BM017 111.0 114.0 3.0 1.20 0.00 0.42 28.50
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DB05BM018 12.0 19.0 7.0 1.10 3.20 0.80 113.00
DB05BM018 13.0 14.5 1.5 0.04 23.60 0.47 23.60
DB05BM018 27.0 40.0 13.0 1.10 0.20 0.40 39.00
DB05BM018 53.5 56.5 3.0 1.30 3.60 0.30 56.50
DB05BM018 59.5 61.0 1.5 1.38 0.00 0.05 21.70
---------------------------------------------------------------------
DB05BM019 10.5 12.0 1.5 3.70 6.40 0.10 29.30
DB05BM019 34.5 36.4 0.2 1.00 3.90 0.60 47.80
DB05BM019 46.0 51.9 5.9 3.27 15.71 0.13 34.50
---------------------------------------------------------------------
DB06BM020 27.0 30.0 3.0 2.15 10.99 0.63 97.65
DB06BM020 33.0 36.0 3.0 6.30 17.75 2.15 402.00
DB06BM020 43.5 46.5 3.0 2.82 20.00 2.64 66.10
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DB06BM021 5.0 5.5 0.5 0.54 9.12 0.00 5.30
DB06BM021 9.0 12.0 3.0 1.00 3.90 0.20 23.00
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DB06BM023 26.0 26.5 0.5 21.90 6.99 1.17 380.00
DB06BM023 29.9 30.0 0.1 3.07 12.50 0.04 greater
than 100
DB06BM023 31.7 32.0 0.3 4.72 21.90 1.73 296.00
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SURFACE DRILLING, MINA BOLIVAR
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Cu Zn Au Ag
Hole From To Length % % g/t g/t
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DB06B159 86.0 94.0 8.0 0.29 12.41 0.10 6.75
DB06B159 108.3 111.3 3.0 1.17 25.20 0.43 46.67
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DB06B160 7.4 9.2 1.8 4.46 17.15 0.04 42.80
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DB06B161 28.0 31.0 3.0 2.56 6.44 0.02 18.00
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DB06B162 19.4 23.0 3.6 2.62 7.21 0.03 12.63
DB06B162 38.0 41.6 3.6 2.16 14.95 0.05 21.90
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DB06B164 70.0 72.0 2.0 1.93 11.43 0.03 33.85
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DB06B168 83.0 87.5 4.5 2.57 4.76 0.20 112.50
DB06B168 91.0 93.0 2.0 0.66 14.90 0.05 13.10
DB06B168 95.0 97.0 2.0 0.37 6.77 0.04 9.80
DB06B168 126.5 131.0 4.5 1.24 2.13 0.06 24.40
DB06B168 134.0 144.5 10.5 0.20 7.84 0.03 5.23
DB06B168 153.5 161.0 7.5 0.83 2.56 0.02 16.64
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DB06B169 68.0 76.0 8.0 1.00 0.03 0.25 16.38
DB06B169 101.0 105.0 4.0 1.20 0.03 0.16 22.05
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BOLIVAR SOUTH
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Cu Zn Au Ag
Hole From To Length % % g/t g/t
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DB06B165 81.5 90.5 9.0 1.26 6.78 0.24 38.17
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DB06B166 21.2 23.0 0.8 1.60 6.60 0.90 greater
than 100
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DB06B167 299.0 301.2 2.2 2.10 5.99 0.00 36.60
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Dr. Thomas L. Robyn, Executive Chairman, is the Qualified Person for technical statements made in this release.

Method of analysis

The analyses were conducted at Chemex Laboratories in Vancouver by fire assay for precious metals and atomic absorption for base metals.

About Dia Bras

Dia Bras is a Canadian mining and exploration Company focused on precious and base metals in the State of Chihuahua, northern Mexico. The Company continues exploration and the active development of its two key projects - Bolivar and Promontorio - in the world-renowned Sierra Madre mineral belt. The Company trades on the TSX Venture Exchange, under the symbol "DIB". For more information of our Mexican exploration, please consult our Web Site at diabras.com

If you would like to receive press releases via email please contact info@diabras.com Please specify "Dia Bras press releases" in the subject line.

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.

A map of the Bolivar Mine is available at the following address: http://www.ccnmatthews.com/docs/bolivar.pdf

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

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