BOLIVAR MINE: EXPLORATION UPDATE

Montréal, Québec, - Ocotober 26, 2004 -

Dia Bras Exploration Inc. (DIB-V) (Dia Bras or the "Company") s pleased to announce that since the acquisition of the Bolivar Property on September 14, 2004, the Company has drilled 33 holes of which results have been received for 20.

This drilling campaign has demonstrated that the high grade Cu-Zn mineralization occurs along two 100-meter spaced parallel faults on the property. Mineralization is recognized for 250 meters along both structures and still open at depth and along strikes to the NW and SE.

The high grade Cu-Zn massive sulfides lenses are usually associated with or within envelopes of lower grade economic material. Only the results of the high-grade intersections are listed below:

LENS

HOLE

From:

To:

Width
(m)

Au
g/t

Ag
g/t

Cu
%

Zn
%

Lens #1

DIA-045-04*

67

72

5

0.08

55

6.31

37.23

 

DIA-048-04

29

30

1

8.7

116

2.18

11.80

 

DIA-052-04*

59.83

64

4.17

0.46

228.08

6.68

19.19

 

 

67

75

8

 

41.95

5.36

3.29

 

 

81

83

2

 

38.20

1.81

11.45

 

DIA-054-04

57

62

6

 

34.65

4.55

16.50

 

 

77

79

2

0.88

181.55

4.02

12.93

 

DIA-055-04

63

65

2

 

37

5.11

30.29

 

 

69

72

3

 

104.6

5.28

7.75

 

DIA-060-04

52

53

1

0.165

59.7

10.25

35.45

Lens #2

DIA-064-04

67

68

1

0.776

211

3.96

33.89

 

DIA-066-04

81

83

2

Massive sulfides, results are pending

 

DIA-071-04

37.65

40.12

2.47

Massive sulfides and semi massive chalcopyrite +sphalerite

 

 

59.50

61.80

2.30

Massive sulfides and semi massive chalcopyrite +sphalerite

 

 

68

70.90

2.90

Massive sulfides and semi massive chalcopyrite +sphalerite

 

 

75.6

79.7

4.10

Semi massive sulfides

 

 

79.8

88.20

8.40

Massive sulfides and semi massive chalcopyrite +sphalerite

 

 

92.8

95.7

2.90

Massive sulfides and semi massive chalcopyrite
   +sphalerite

Lens #3

DIA-046-04

78.8

80.0

1.20

0.165

65.8

8.07

38.15

Lens #4

DIA-072-04

133

134

1

Massive sulfides, pending results

 

DIA-051-04

148

149

1

 

28.3

1.2

7.78

Lens #5

DIA-058-04

148.45

149.86

1.41

0.14

66.2

8.78

33.52

 

 

156.82

158.82

2

 

57.6

4.87

30.04

 

DIA-061-04

97

105

8

3.55

281.43

4.04

0.87

 

 

168.8

169.8

1

0.058

30.3

7.16

21.9

 

DIA-065-04

188.6

189.3

0.7

Massive sulfides, results are pending

* Results on holes 45 and 52 were previously announced on September 8, 2004.

Partial Results on the Promontorio Property

Partial results of the first DDH completed on the Promontorio project are listed below.  The hole cut two mineralized structures approximately 100 meters below the previous deepest drill intersection. 

DDH

From:

To:

Thickness
(m)

Au
g/t

Ag
g/t

Cu %

Zn %

PMT-01-04

215

216

1

<0.03

14.3

0.29

<0.01

 

216

216.6

0.6

6.99

230.7

42.45

0.12

 

216.6

217

0.4

0.14

18

0.72

0.04

 

TOTAL

2.0

1.42

53.3

8.68

 

 

252.5

253.5

1

4.46

473.1

20.72

0.23

 

253.5

254.5

1

0.27

35.3

1.2

0.12

 

254.5

255.5

1

6.1

506.8

14.81

1.08

 

255.5

256.02

0.52

3.91

276.1

10.68

0.49

 

TOTAL

3.52

3.65

289.69

10.57

 



About Dia Bras
Dia Bras is a Canadian mining exploration company focused on precious and base metals in the State of Chihuahua, Mexico. The Company will continue exploration and the active development of its two key projects – Bolivar and Promontorio – located in the Sierra Madre precious metal belt. The Company is traded on TSX Venture Exchange, under the symbol “DIB”.

-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.