Acero-Martin Exploration Inc.
TSX VENTURE : ASD
FRANKFURT : AMX

Acero-Martin Exploration Inc.

August 21, 2007 10:00 ET

Acero-Martin Reports Additional Results From Its Ongoing Drilling Program at the Pinaya Gold-Copper Project

VANCOUVER, BRITISH COLUMBIA--(Marketwire - Aug. 21, 2007) - Acero-Martin Exploration Inc. (the "Company" or "Acero-Martin") (TSX VENTURE:ASD)(FRANKFURT:AMX) is pleased to report the results of nine additional drill holes from the Gold Oxide Skarn Zone (GOSZ) and North Western Porphyry Zone (NWPZ) of its wholly owned Pinaya project in southern Peru. The holes were drilled to expand the projects overall resource base and upgrade resource classification levels. Highlights include:

- 0.75% copper over 68.50 meters in drill hole PDH-119

- 1.73 grams per tonne gold over 4.50 meters and a separate zone of 0.41% copper over 30.80 meters in drill hole PDH-123

- 0.57 grams per tonne gold and 0.25% copper over 26.00 meters in drill hole PDH-126

A table of drilling results is provided below for further reference.



Hole From To Interval Interval Au Cu
Number Zone (m) (m) (m) (ft) g/t %
----------------------------------------------------------------

PDH-118 NWPZ 347.50 427.50 80.00 262.47 0.01 0.39

PDH-119 GOSZ 140.50 161.50 21.00 68.90 0.15 0.22
175.00 182.50 7.50 24.61 0.06 0.22
257.00 325.50 68.50 224.74 0.07 0.75

PDH-120 GOSZ 22.00 42.00 20.00 65.62 0.49 0.03
75.00 343.50 268.50 880.91 0.16 0.19
Incl. 75.00 103.30 28.30 92.85 0.40 0.17
Incl. 121.00 169.50 48.50 159.12 0.06 0.36
Incl. 193.50 226.30 32.80 107.61 0.09 0.39
Incl. 292.50 343.50 51.00 167.32 0.36 0.20

PDH-121 NWPZ No Significant Results

PDH-122 GOSZ 84.50 186.10 101.60 333.33 0.35 0.19
Incl. 84.50 125.00 40.50 132.87 0.11 0.44
Incl. 128.00 147.70 19.70 64.63 0.73 0.09
Incl. 152.00 186.10 34.10 111.88 0.49 0.00

PDH-123 GOSZ 102.00 132.80 30.80 101.05 0.09 0.41
152.00 156.50 4.50 14.76 1.73 0.00

PDH-124 GOSZ 146.00 169.90 23.90 78.41 0.19 0.27

PDH-125 GOSZ 41.00 72.00 31.00 101.71 0.35 0.05
72.00 103.50 31.50 103.35 0.06 0.22

PDH-126 GOSZ 63.50 89.50 26.00 85.30 0.57 0.25
----------------------------------------------------------------


The intersections represent apparent thicknesses, and are 1.25 to 1.5 times the true thickness. For a location map of the drill holes, please use the following link: http://www.aceromartinexp.com/_resources/topo_drilling_06_07.pdf.

To date this year a total of 14,072 meters have been drilled in 43 holes at Pinaya bringing the total metreage to 35,422 meters in 135 holes.

In September of 2006, based on just the first 70 of the 135 holes drilled to date the Company released an initial NI 41-101 compliant mineral resource estimate as prepared by J.D. Blanchflower, P. Geo. Using a US$5.50 Gross Metal Value (GMV) cut off, the report estimated that the Western Porphyry and Gold Oxide Skarn Zones together contain an Indicated Resource of 29.13 million tonnes grading 0.53 g/t gold and 0.42% copper and an Inferred Resource of 12.72 million tonnes grading 0.41 g/t gold and 0.41% copper. This equates to approximately 498,000 troy ounces of gold and 269,000,000 pounds of copper in the Indicated category, and 168,000 troy ounces of gold and 115,000,000 pounds of copper in the Inferred.

The 2007 drilling to date indicates a significant increase in the size of the deposit. Ongoing drilling since the release of the initial resource estimate has expanded and further defined the Western Porphyry and Gold Oxide Skarn Zones, which remain open for expansion along strike and down dip.

Drilling is ongoing at the Pinaya project. The 2007 diamond drilling program will continue to expand the North Western Porphyry Zone area, infill some vital areas in the Western Porphyry Zone, and begin to test some outlying emerging target areas such as Minas Jorge, Montana de Cobre, and Viscachani.

Additional drill results will be released as they become available.

The Company is compliant under National Instrument 43-101 for the Pinaya project. Cary Pothorin, P. Geo is the qualified person responsible for the exploration program at Pinaya and is supervising the quality control and quality assurance program. A quality control program of standards, blanks and duplicates is maintained.

About Acero-Martin Exploration Inc.

Acero-Martin Exploration Inc. is a mineral exploration and development company with projects in North and South America. The Company is currently focused on developing its flagship Pinaya gold-copper project in southern Peru. Acero-Martin offers investors the opportunity to share ownership in the rapid development of the project to production. Acero-Martin trades on the TSX-Venture exchange under the symbol ASD and the Frankfurt stock exchange under the symbol AMX.

ON BEHALF OF THE BOARD

Donald Gee, President and Director

This news release has been prepared by management. This document contains certain forward looking statements which involve known and unknown risks, delays, and uncertainties not under the Company's control which may cause actual results, performance or achievements of the Company to be materially different from the results, performance or achievements implied by these forward looking statements. We seek safe harbor.

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

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