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

Acero-Martin Exploration Inc.

April 23, 2007 12:48 ET

Acero-Martin Drills Additional High Grade Gold Intercepts at Pinaya: Highlights Include 60.20 Meters of 3.16 g/t Gold Equivalent

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - April 23, 2007) - Acero-Martin Exploration Inc. (the "Company") (TSX VENTURE:ASD)(FRANKFURT:AMX) is pleased to announce the results of five additional drill holes completed at the Gold Oxide Skarn Zone ("GOSZ") of its wholly owned Pinaya project in Southern Peru. All five holes intersected significant widths of gold-copper mineralization. Highlights include: 29.40 m of 3.07 g/t gold equivalent ("AuEq") in Drill Hole 97, 60.20 m of 3.16 g/t AuEq in Hole 98, and 29.50 m of 2.59 g/t AuEq in Hole 99.

"The latest drill results continue to confirm the ability of the GOSZ zone to host a high grade, near surface, heap leach mining operation. We are on a fast track to develop the gold zone for initial production. The initial metallurgical test results are eminent and will form the basis for our Preliminary Economic Assessment (PEA) report which is scheduled to begin this quarter. The PEA will, of course lead the way to Pre-Feasibility and Feasibility Studies. Revenues from the gold zone will finance future development without share dilution," said Donald Gee, Acero-Martin's President and CEO.



Complete drill results are summarized below:

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

PDH-96 0 9 9 29.53 0.68 0.02 0.72 0.39
29.5 44.5 15 49.21 0.27 0.05 0.36 0.20
82 158.5 76.5 250.98 0.93 0.26 1.41 0.77
175 191.5 16.5 54.13 0.05 0.24 0.49 0.27

PDH-97 0 23.1 23.1 75.79 0.31 0.05 0.40 0.22
26.1 55.5 29.4 96.46 2.80 0.15 3.07 1.68
55.5 96.5 41 134.51 0.50 0.16 0.79 0.43

PDH-98 0 45 45 147.64 0.32 0.02 0.36 0.19
45 105.2 60.2 197.51 2.81 0.19 3.16 1.73
126.5 136 9.5 31.17 0.15 0.24 0.59 0.32

PDH-99 34.5 64 29.5 96.78 2.30 0.16 2.59 1.42
375 391.5 16.5 54.13 0.10 0.26 0.58 0.31

PDH-100 0 3 3 9.84 0.89 0.07 1.02 0.56
9.5 20 10.5 34.45 0.48 0.04 0.55 0.30
49.5 79.5 30 98.43 1.02 0.12 1.24 0.68
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(i) Copper equivalent values (CuEq) and gold equivalent values (AuEq) are
estimated using long-term metal prices, including copper at $1.20 (U.S.)
per pound and gold at $450 (U.S.) per ounce. Adjustment factors to account
for differences in relative metallurgical recoveries for gold and copper
will depend upon the completion of definitive metallurgical testing. CuEq
equals Cu per cent plus Au gram per tonne multiplied by 14.47/(1.20
multiplied by 22.05); AuEq equals Au gram per tonne plus Cu per cent
multiplied by 22.05 multiplied by 1.2/14.47.


Given approximate orientations of about 225 degrees/-50 degrees and -70 degrees for the holes completed at the GOSZ, they generally represent about 70 per cent of the true thickness of the mineralized zone.

Holes 95 (24.55 m of 2.13 g/t Au; see news release of March 21, 2007) and 96 (76.55 m of 0.93 g/t Au) were drilled approximately mid way between Holes 1 and 5. These holes were designed to test the updip edge of the mineralized body, and to infill between prior drill holes.

Holes 97 and 98 were drilled approximately mid way between Holes 5 and 7, and were designed to test the updip edge of the mineralized body, and to infill between these holes.

Holes 99 and 100 were drilled approximately mid way between Holes 7 and 6, and successfully extended the gold mineralization previously identified in Hole 7 (85.5 m of 1.34 g/t Au) by at least 25 m to the south.

The GOSZ is an extensively mineralized body that exceeds 500 m strike length, and which has been tested to depths of up to 200 m. To date, the true thicknesses for the mineralized zones vary up to approximately 60 to 65 m. Future drilling will test known gold and copper resource at the GOSZ further along strike both to the north and to the south, and infill where appropriate.

The Company is compliant under National Instrument 43-101 for the Pinaya project. Jeffrey Reeder, P.Geo, and Cary Pothorin, P. Geo are the qualified persons responsible for the exploration program at Pinaya and are 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 junior 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 has not reviewed and does not accept responsibility for the adequacy or accuracy of this news release.

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