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Last updated on April 21, 2014 at 8:42 EDT

Dia Bras begins a second round of drilling to expand resources of the central mine orebodies of its Yauricocha Property, Peru

October 12, 2012

TSX Venture Exchange – DIB
Bolsa de Valores de Lima – DIB
# 34-2012

TORONTO, Oct. 12, 2012 /PRNewswire/ – Dia Bras Exploration Inc. (TSX-V:DIB) (BVL: DIB) (“Dia Bras” or the “Company”) is pleased to announce that it has
commenced another resource-expansion drilling programme designed to
increase the resource tonnage and categories of the Antacaca Sur,
Rosaura and Catas orebodies at the Yauricocha mine in Peru. Three new
diamond holes have been drilled in the Antacaca orebody, 8 in the
Rosaura orebody, and 19 holes in the Catas orebody. These deposits are
within the Central Mine Area where the Company’s mining is focused.

     ____________________________________________________________________
    |Press Release Highlights:                                           |
    |                                                                    |
    |    --  Fifteen of the nineteen new drill holes in the Catas orebody|
    |        returned significant results as did seventeen of the drill  |
    |        holes in the Antacaca-Rosaura orebodies.                    |
    |    --  An IP-resistivity conducted along the Yauricocha Fault has  |
    |        detected seven strong chargeability anomalies.  Drilling of |
    |________the_first_anomaly_has_commenced.____________________________|

Daniel Tellechea, President and CEO of Dia Bras, commented: “This second drilling programme being conducted by the Company is
designed to expand the mine’s resources and demonstrate how extensive
mineralization is in the Yauricocha Central Mine Area. We expect to
increase our resources and issue an updated resource calculation early
next year.”

Recent Drilling Results

The first resource expansion drilling of the Catas and Rosaura-Antacaca
orebodies resulted in reserves being more than tripled (see press
release of September 6, 2012) to almost 6 million tonnes of Measured
and Indicated resources within which are 4.2 million tonnes of Proven
and Probable Reserves. The objective of this round of drilling is to
increase further the total resource tonnage of these orebodies,
increase the tonnes in Measured & Indicated Resources, and demonstrate
the longer mine life expected by the Company.

The Company is employing two underground core rigs for this
resource-expansion program. One is drilling to greater depths under
the Cuye-Catas orebodies while the second is drilling the
Rosaura-Antacaca Sur orebodies to depth.

Examination of the attached long section shows that potentially-economic
intercepts have been made under the known mineralization of the
Cuye-Catas zone and the Antacaca-Rosaura-Antacaca Sur zone. The
attached long section shows the piercing points of the drill holes
reported herein and assay results from recent drill holes are shown in
the tables below:

Antacaca Sur Orebody Level 770 Drill Results

     ______________________________________________________________________
    |    |           | Core |Est. |    |    |    |     |    |              |
    |Hole|   To-From |Length|True |g/t |% Pb|% Cu|% Zn | Au |Mineralization|
    | #* |     (m)   | (m)  |Width| Ag |    |    |     |g/t |     Type     |
    |    |           |      | (m) |    |    |    |     |    |              |
    |____|___________|______|_____|____|____|____|_____|____|______________|
    | 09 |97.0-105.0 |  8.0 | 7.1 |75.8|3.84|0.34|8.15 |0.61| Polymetallic |
    |____|___________|______|_____|____|____|____|_____|____|______________|
    | and|105.0-108.0|  3.0 | 2.2 |60.8|0.45|2.33|0.86 |0.28|      Copper  |
    |____|___________|______|_____|____|____|____|_____|____|______________|
    | 10 |93.6-109.0 | 15.4 |12.2 |48.8|5.70|0.43|13.76|0.54| Polymetallic |
    |____|___________|______|_____|____|____|____|_____|____|______________|
    | and|109.0-114.6|  5.6 | 3.1 |86.0|0.27|1.87|0.43 |0.47|      Copper  |
    |____|___________|______|_____|____|____|____|_____|____|______________|
    | 11 |101.0-104.0|  3.0 | 2.6 |91.5|2.83|0.38|7.74 |0.49|     Pyritic  |
    |____|___________|______|_____|____|____|____|_____|____|______________|
    | and|104.0-118.0| 14.0 |12.6 |82.4|0.48|0.58|0.87 |0.38|         "    |
    |____|___________|______|_____|____|____|____|_____|____|______________|
    | and|118.0-126.0|  8.0 | 6.6 |81.3|0.17|3.63|0.30 |0.59|      Copper  |
    |____|___________|______|_____|____|____|____|_____|____|______________|

    * All holes have the prefix Ant Sur 11-12-

Rosaura Orebody Level 770 Drill Results

     _________________________________________________________________________
    |    |            | Core |Est. |     |     |    |     |    |              |
    |Hole|   To-From  |Length|True | g/t |% Pb |% Cu|% Zn | Au |Mineralization|
    | #* |     (m)    | (m)  |Width| Ag  |     |    |     |g/t |     Type     |
    |    |            |      | (m) |     |     |    |     |    |              |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | 01 | 91.4-102.3 | 10.9 | 8.1 |124.5|2.38 |2.29|6.64 |0.56| Polymetallic |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | and|122.0-131.0 |  9.0 | 8.2 |35.8 |0.18 |0.22|0.69 |0.33|     Pyritic  |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | 02 |103.3-115.8 | 12.5 |10.9 |33.3 |4.31 |0.25|8.67 |0.61| Polymetallic |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | and|124.9-135.45|10.55 | 7.7 |70.0 |6.12 |0.70|16.21|0.50|         "    |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | 03 |  88.7-97.0 |  8.3 | 7.2 |104.8|2.88 |0.66|9.48 |0.30|         "    |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | and| 97.0-101.5 |  4.5 | 3.9 |262.6|0.86 |4.46|1.88 |0.48|      Copper  |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | and|127.3-135.0 |  7.7 | 6.5 |83.1 |10.15|0.62|18.23|0.33| Polymetallic |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | 04 | 97.8-102.6 |  4.8 | 4.1 |85.3 |1.21 |0.29|9.98 |0.22|         "    |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | and|106.7-111.0 |  4.3 | 3.8 |29.3 |3.28 |0.25|5.12 |0.96|         "    |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | and|143.3-145.9 |  2.6 | 2.1 |63.2 |2.83 |0.03|3.63 |0.14|         "    |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | and|150.3-157.7 |  7.4 | 6.2 |23.3 |1.10 |0.14|2.04 |0.99|         "    |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | 05 |136.6-138.1 |  1.5 | 1.2 |34.5 |2.88 |0.10|5.92 |0.33|         "    |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | and|143.0-145.0 |  2.0 | 1.6 |84.0 |0.79 |0.26|5.13 |0.54|         "    |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | and|146.0-149.0 |  3.0 | 2.6 |207.1|0.03 |5.29|0.12 |1.01|      Copper  |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | 06 |145.0-147.0 |  2.0 | 1.6 |270.2|0.10 |6.24|0.18 |0.00|         "    |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | 07 |  87.0-97.0 | 10.0 | 8.4 |64.8 |3.08 |043 |18.00|0.91| Polymetallic |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | and| 97.0-105.6 |  8.6 | 7.2 |128.7|0.27 |4.55|0.62 |1.48|      Copper  |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | 08 | 89.3-103.0 | 13.7 |11.9 |80.5 |2.23 |1.09|6.39 |0.66| Polymetallic |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|
    | and|103.0-115.0 | 12.0 |10.2 |96.1 |0.18 |3.90|0.33 |0.43|      Copper  |
    |____|____________|______|_____|_____|_____|____|_____|____|______________|

    * All holes have the prefix 11-12- and suffix NV.770

Rosaura Orebody Level 820 Drill Results

     _______________________________________________________________________
    |    |           | Core |Est. |     |    |    |     |    |              |
    |Hole|   To-From |Length|True | g/t |% Pb|% Cu|% Zn | Au |Mineralization|
    | #* |     (m)   | (m)  |Width| Ag  |    |    |     |g/t |     Type     |
    |    |           |      | (m) |     |    |    |     |    |              |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 23 |157.1-170.1| 13.0 | 8.6 |29.3 |0.09|0.22|0.16 |1.07|     Pyritic  |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 24 |169.0-171.0|  2.0 | 1.6 |35.9 |0.31|0.29|0.57 |0.94| Polymetallic |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and|171.0-175.3|  4.3 | 3.7 |72.7 |1.88|0.13|6.13 |1.52|         "    |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and|175.3-181.0|  5.7 | 5.1 |18.3 |016 |0.12|0.29 |2.27|         "    |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 25 |179.1-180.3|  1.2 | 1.0 |58.5 |0.17|0.22|11.75|0.42| Polymetallic |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and|191.0-194.0|  3.0 | 2.8 |87.0 |2.76|0.72|7.19 |2.76|         "    |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and|194.0-197.6|  3.6 | 3.4 |62.7 |0.15|0.62|0.47 |1.48|         "    |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 26 |225.5-229.1|  3.6 | 3.2 | 8.3 |0.08|0.11|1.46 |0.24|     Pyritic  |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 27 | 65.2-69.4 |  4.2 | 3.9 |198.6|2.12|0.46|9.77 |1.01| Polymetallic |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and|195.0-198.3|  3.3 | 2.6 |37.6 |0.21|1.54|0.06 |0.77|      Copper  |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 28 |183.7-185.2|  1.5 | 1.1 |37.8 |5.73|0.21|11.08|0.87| Polymetallic |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and|188.5-190.9|  2.4 | 2.0 |62.3 |2.75|0.77|5.40 |1.53|         "    |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and|201.6-204.9|  3.3 | 2.9 |46.4 |2.05|0.22|7.25 |0.38|         "    |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and|215.8-222.2|  6.4 | 6.0 |38.4 |1.15|0.37|4.37 |0.42|         "    |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and|223.2-225.3|  2.1 | 1.7 |46.6 |0.04|1.47|0.10 |1.66|      Copper  |
    |____|___________|______|_____|_____|____|____|_____|____|______________|

    * All holes have the prefix 12-12 and suffix NV. 820

Catas Orebody Level 820 Drill Results:

     _______________________________________________________________________
    |    |           | Core |Est. |     |    |    |     |    |              |
    |Hole|   To-From |Length|True | g/t |% Pb|% Cu|% Zn | Au |Mineralization|
    | #* |     (m)   | (m)  |Width| Ag  |    |    |     |g/t |     Type     |
    |    |           |      | (m) |     |    |    |     |    |              |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 11 |167.6-177.0|  9.4 |     |69.1 |0.48|0.32|5.31 |0.94| Polymetallic |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 14 |186.5-192.0|  5.5 | 4.8 |64.6 |0.56|0.72|2.00 |0.54|     Pyritic  |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 15 |121.0-127.0|  6.0 | 5.3 |43.9 |0.26|1.35|0.88 |0.63|      Copper  |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 16 | 60.0-70.0 | 10.0 | 9.2 |92.3 |0.07|3.64|0.38 |0.58|         "    |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and| 70.0-75.0 |  5.0 | 4.2 |50.2 |0.07|0.45|0.47 |0.37|     Pyritic  |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and| 75.0-79.6 |  4.6 | 3.8 |161.6|0.28|0.46|4.36 |0.31|      Copper  |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and| 87.8-90.9 |  2.2 | 1.4 |49.7 |0.66|0.11|3.24 |0.28|         "    |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and| 94.0-96.0 |  2.0 | 1.2 |46.5 |2.37|0.16|13.41|0.20|     Pyritic  |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 17 | 83.3-86.0 |  2.7 | 2.4 |134.8|0.18|3.44|1.27 |1.18|      Copper  |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and| 87.2-93.6 |  6.4 | 6.1 |45.3 |0.12|0.64|1.52 |0.57|     Pyritic  |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 18 |99.0-100.0 |  1.0 | 0.7 |29.0 |0.05|0.35|13.27|0.58| Polymetallic |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 19 |110.0-111.4|  1.4 | 1.0 |57.1 |0.10|0.37|4.10 |0.34| Polymetallic |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 21 |96.7-100.0 |  3.3 | 2.9 |23.3 |0.12|0.14|3.41 |0.13| Polymetallic |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 24 |101.7-105.0|  3.3 | 3.0 |99.2 |0.85|0.38|8.36 |0.46| Polymetallic |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 27 |125.7-132.7|  7.0 | 6.1 | 9.9 |0.14|0.14|2.87 |0.34| Polymetallic |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 28 |144.7-148.5|  3.8 | 3.1 |59.4 |0.37|0.88|0.52 |0.39|     Pyritic  |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and|150.3-154.0|  3.7 | 3.0 |103.9|0.54|1.21|3.09 |0.89| Polymetallic |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 29 |164.3-171.0|  6.7 | 6.1 |145.1|0.08|3.64|0.41 |0.36|      Copper  |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and|175.0-177.0|  2.0 | 1.4 |115.0|0.06|1.98|1.18 |0.54|     Pyritic  |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and|178.0-181.0|  3.0 | 2.4 |47.7 |0.48|0.49|3.16 |0.47| Polymetallic |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and|191.6-194.0|  2.4 | 1.8 |92.9 |0.18|0.37|10.33|0.38|         "    |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 30 |174.0-181.0|  7.0 | 6.2 |124.5|0.23|2.49|0.71 |0.09|      Copper  |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and|184.0-189.0|  5.0 | 4.2 |151.1|0.04|2.15|0.36 |0.05|         "    |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 31 |161.6-163.8|  2.2 | 1.4 |115.4|0.31|1.61|0.88 |0.12|      Copper  |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and|170.9-171.9|  1.0 | 0.2 |206.7|0.43|1.01|10.67|1.00| Polymetallic |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | 32 |160.2-164.7|  4.5 | 4.3 |303.8|0.54|3.53|1.78 |0.22|      Copper  |
    |____|___________|______|_____|_____|____|____|_____|____|______________|
    | and|196.1-198.3|  2.2 | 2.0 |44.9 |0.11|0.13|14.86|0.85| Polymetallic |
    |____|___________|______|_____|_____|____|____|_____|____|______________|

    * All holes have the prefix CAT-12-12- and suffix NV. 820

Exploration Programme

The Company has completed an IP-resistivity survey along the Yauricocha
Fault from Cachi-Cachi to southeast of Adrico, a distance of about four
kilometres. Seven strong IP anomalies were detected and drilling of
the anomalies has begun. The first surface drill hole in this program
is in progress. A second phase of IP-resistivity surveying will be
done further to the southeast along the Yauricocha Fault early in 2013.

Exploration work in other areas, such as Ipillo (silver-zinc-lead) and
Carmencita (silver-gold-lead oxides), will commence when the Company
has completed negotiations with local authorities for access on the
surface.

Method of Analysis

Samples are prepared at the Yauricocha lab facility in the Chumpe mill,
which is on site. Core and channel samples from the mine are assayed
utilizing one of two procedures. Silver, lead, zinc, and copper are
assayed by atomic absorption. Gold is fire-assayed with an atomic
absorption finish. Diamond drill samples sent for analysis consist of
half NQ-size and BQ-size diamond core split on site.

Quality Assurance

The quality assurance-quality control (QA-QC) program employed by Dia
Bras has been described in detail in the NI 43-101 report on Yauricocha
of May 25, 2011, prepared by Gustavson Associates of Denver, which is
available for review on SEDAR.

The technical content of this news release has been approved by Thomas
L. Robyn, Ph.D., CPG, RPG, a Qualified Person as defined in NI 43-101
and Head of Exploration for Dia Bras Exploration, Inc.

About Dia Bras

Dia Bras Exploration is a Canadian mining company focused on precious
and base metals in Chihuahua State, other areas of northern Mexico, and
at its Yauricocha silver-lead-zinc-copper-gold mine in Peru. The
Company is accelerating exploration at the Yauricocha property as well
as pursuing the development and exploration of its most advanced
Mexican assets – the Bolivar Property (copper zinc silver) and the Cusi
Property (silver) and is exploring in Mexico several precious metal
targets such as La Sidra gold project at the Bolivar Property, the Las
Coloradas silver project at Melchor Ocampo (Zacatecas State), the
Bacerac silver project (Sonora State), and the La Verde gold project at
the Batopilas Property (Chihuahua State). Dia Bras is also exploring
base metal projects in Mexico such as the Corralitos intrusion-hosted
molybdenum deposit (Chihuahua State).

The Company’s shares trade on the Bolsa de Valores de Lima and TSX
Venture Exchange under the symbol “DIB”.

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 news
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.

SOURCE Dia Bras Exploration Inc.

Image with caption: “Yauricocha Longitudinal Section (CNW Group/Dia Bras Exploration Inc.)”. Image available at: http://photos.newswire.ca/images/download/20121012_C6208_PHOTO_EN_19139.jpg


Source: PR Newswire