Acero-Martin Exploration Inc. (the “Company”) is pleased to announce that MineFill Services, Inc. has been commissioned to prepare a Preliminary Economic Assessment (“scoping study”) in support of the development of a starter pit at the high grade Gold Oxide Skarn Zone at Pinaya.  The scoping study will provide Acero-Martin with preliminary recommendations regarding mine planning and design and a general indication of overall project economics.

MineFill will evaluate a number of development options, including heap leaching, or milling with CIL and CIP recovery of gold.  Minefill will also oversee additional metallurgical studies for Pinaya targeting core from the Gold Oxide Skarn Zone.  The study is expected to be complete by Q3 2007 leading to a detailed engineering and pre-feasibility study shortly thereafter.

MineFill has been selected due to its broad range of experience in projects similar to Pinaya and its track record in assisting companies of all sizes to evaluate deposits and mine plans to maximize returns.  MineFill has been working in Peru since 1999 and as such they bring relevant experience and working knowledge of the current Peruvian operating cost environment. Currently MineFill is working on a number of advanced stage development projects in Peru, including Azulcocha (Zinc, Manganese, Gold), Canariaco (Copper, Gold), and Silveria (Silver, Copper, Zinc).

Mr. Donald Gee, President and CEO of Acero-Martin stated “The scoping study is an important step in the path towards initial gold production at Pinaya.  We are pleased to be working with MineFill as they have considerable expertise working on similar projects in Peru.”  He added “As development activities continue to advance the Gold Oxide Skarn Zone towards production, exploration will also continue to expand the larger copper rich Western Porphyry Zone to the west, and further exploratory drilling is planned for the Montana de Cobre, Minas Jorge, and Don Pedro targets, which together form a mineralized trend several kilometers in length.”

Drilling and exploration is ongoing at Pinaya.  Currently, there are two rigs working on site with a third scheduled to arrive in June.  Assay 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 MineFill Services

MineFill Services, with offices in Toronto, Vancouver and Seattle, consults for mining companies worldwide including Newmont, Barrick, AngloGold, Boliden, Bema Gold, Kennecott and others. MineFill’s capabilities include the preparation of scoping level and feasibility level studies for base metal and precious metal projects worldwide. The Qualified Person responsible for the scoping study will be Dr. David Stone, P.Eng., President of MineFill Services. Dr. Stone has 30 years of experience in the mining industry evaluating projects for mining companies.

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.

Please do not hesitate to call if you have any questions and/or requests.

Kindest Regards,

Ryan Fletcher
Acero-Martin Exploration Inc.
(800) 884-5269 Phone
(604) 646-0640 Fax
www.acero-martin.com