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

Acero-Martin Exploration Inc.

November 23, 2007 20:04 ET

Acero-Martin Increases Private Placement to $2,379,365

VANCOUVER, BRITISH COLUMBIA--(Marketwire - Nov. 23, 2007) - Acero-Martin Exploration Inc. (the "Company") (TSX VENTURE:ASD)(FRANKFURT:AMX) is pleased to announce that in response to strong interest in the Company it is increasing the size of its previously announced non-brokered financing by an additional 1,083,900 Units at $0.35 for additional gross proceeds of $379,365. In total, the Company will issue up to 6,798,185 Units at $0.35 for gross proceeds of $2,379,365.

Each Unit consists of one common share of the Company ("Share") and one half of a share purchase warrant ("Warrant"). Each whole warrant will entitle the holder thereof to purchase one additional Share (a "Warrant Share") of the Company at a price of $0.50 per Warrant Share for a one year period from the date of issue.

Shares issued pursuant to this private placement, as well as any shares issued pursuant to the exercise of the warrants, are subject to a four-month hold period from the date of closing.

Proceeds from the private placement will be used to fund the continued exploration and development of the Company's Pinaya gold-copper project in southern Peru and for general working capital purposes. The private placement is subject to approval of the TSX Venture Exchange and finders fees may be paid in accordance with regulatory policy.

About Acero-Martin Exploration Inc.

Acero Martin's 100%-owned Pinaya project is one of Peru's newest and richest copper-gold porphyry deposits. The project is located approximately 110 km northeast of Arequipa and is favored with excellent nearby mining infrastructure.

In September of 2006, based on the first 70 holes drilled, an initial independently calculated NI 43-101 resource estimated that Pinaya hosts 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.

Non-stop drilling since the release of the initial resource continues to work to expand the size of the deposit and test new zones of mineralization. Alongside the drilling the company is currently completing a scoping study to determine the potential for, and economic parameters of, developing a starter open pit mining operation. 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

Don Currie, President and CEO

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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