DIA BRAS : MORE MASSIVE SULFIDES AT BOLIVAR

Montréal, Québec, - November 12, 2004 -

Dia Bras Exploration Inc. (DIB-V) (Dia Bras or the "Company") is pleased to announce new results from the exploration program currently in progress on its Bolivar Project (50% Dia Bras), located in the State of Chihuahua, Mexico. Since the last news release (October 26, 2004) assays results for two additional holes (DIA-067-04 and DIA-071-04) and underground samples were received.

HOLE

From:

To:

Width
(m)

Au
g/t

Ag
g/t

Cu
%

Zn
%

DIA-067-04

159.00

160.00

1.00

0.06

19.30

4.02

18.45

 

210.00

211.00

1.00

4.65

112.00

4.49

16.50

DIA-071-04

36.00

41.00

5.00

0.09

26.90

3.76

2.97

 

 including

2.00

0.15

55.40

8.32

3.06

 

58.00

64.00

6.00

0.10

48.20

1.86

9.66

 

 including

2.00

0.04

19.40

3.75

21.25

 

66.00

71.00

5.00

0.09

52.40

0.86

4.87

 

 including

1.00

0.43

231.00

3.41

8.50

 

76.00

89.00

13.00

0.12

38.50

1.54

7.34

 

including (81.00 – 84.00)

3.00

0.07

28.00

4.32

18.80

 

 and (86.00 – 88.00)

2.00

0.48

154.20

2.25

9.07

 

93.00

107.00

9.00

0.51

87.30

1.67

7.25

 

including (93.00 – 95.00)

2.00

0.55

99.30

2.98

25.31

 

 and (101.00 – 102.00)

1.00

3.02

428.00

2.15

1.51

Underground Sampling

A total of 213 samples were taken from different levels of the underground workings. The Company received the assay results of 42 samples from Level 6 where four mineralized zones were identified.

 

Width
(m)

Au
g/t

Ag
g/t

Cu
%

Zn
%

Z O N E   1

 

1.40

0.92

26.00

3.65

5.14

 

1.60

0.45

28.00

2.48

33.50

 

1.80

0.61

137.00

1.56

30.80

 

1.20

0.40

19.00

0.62

18.60

 

1.20

0.59

37.00

2.67

1.00

 

2.50

0.29

21.00

1.00

32.60

Total

9.70

0.52

46.10

1.89

22.80

Z O N E   2

 

1.90

0.20

15.00

0.68

21.50

 

1.40

0.19

16.00

0.71

20.00

Total

3.30

0.20

15.40

0.69

20.90

Z O N E   3

 

2.50

0.16

17.00

0.32

30.50

 

2.10

0.43

15.00

1.60

5.68

 

1.50

0.38

31.00

0.65

37.30

 

1.70

0.07

12.00

0.36

17.80

 

1.60

0.06

7.00

0.15

0.22

 

1.30

0.76

707.0

11.90

1.10

 

1.30

0.04

29.00

0.94

0.73

Total

10.70

0.30

100.0

2.00

16.50

Z O N E   4

 

1.50

0.22

28.00

3.65

6.15

 

1.50

0.09

17.00

1.28

2.95

 

1.30

0.07

14.00

0.50

10.70

 

1.50

0.08

15.00

0.46

22.20

 

1.70

0.41

16.00

0.37

18.40

 

1.70

0.10

11.00

0.51

18.00

Total

10.70

0.30

100.0

2.00

16.50



Mr. André St-Michel, engineer, from the Company, is the qualified person (Canadian standards 43-101) who supervised the exploration program

Moreover, Dia Bras is pleased to announce the signature of a lease-purchase agreement for a 100 tonnes per day mill located at Mal Paso.  As part of the ongoing metallurgical study, a first 5,000 tonnes of high grade Cu-Zn ore will be shipped to the mill.  Processing of this material should start at the end of December or early January at the newly rented facility. 

The decision to lease a mill was made to accelerate the development of the Bolivar Mine while intense exploration is performed on the Bolivar property it self, close surrounding and at Promontorio to increase Au-Cu resources”, stated Mr. Réjean Gosselin, President of Dia Bras.

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.