AZCO Mining: Substantial Increase of Mineralization at Piedras Verdes Copper Project, Sonora, Mexico.

VANCOUVER, BRITISH COLUMBIA--(BUSINESS WIRE)--Feb. 25, 1998-- AZCO Mining Inc. (TSE:AZC.) (AMEX:AZC) AZCO Mining Inc. is pleased to announce that the 1997 work program on its 30 percent owned (Phelps Dodge 70 percent) Piedras Verdes copper oxide project in Sonora, Mexico, has increased the deposit substantially.

The deposit had previously been estimated, and later confirmed by Phelps Dodge, as being 154 million tons grading 0.41 percent copper or 1.28 billion pounds of contained copper (at a 0.2 percent cut-off). The 1997 drill program, comprised of 165 holes, has increased the deposit to 316 million tons grading 0.37 percent copper or 2.34 billion pounds of contained copper (at a 0.2 percent cut off). Furthermore, 90 percent of this deposit has now been classified as in the measured and indicated resource category.

This new estimate equates to a 105 percent increase in the project's tonnage and an 83 percent increase in the contained metal content.

AZCO is extremely satisfied with the results of the 1997 drill program and despite the current poor copper market, continues to believe that exposure to a potentially low cost leachable copper oxide deposit, amenable to the SX-EW process, will ensure AZCO's competitiveness in the copper mining industry.

Due to low copper prices, which recently touched four year lows of US$0.72/lb, Phelps Dodge believes that each project will need to be carefully reviewed on its own merits. Additional studies will take place on Piedras Verdes during 1998.

On behalf of the Board of Directors, AZCO Mining Inc.

Alan P. Lindsay, Chairman, President and Chief Executive Officer

This news release has been prepared by management of the company who takes full responsibility for its contents. The American Stock Exchange and the Toronto Stock Exchange neither approve nor disapprove the contents of this news release.

Statements contained in the news release that are not historical facts are forward-looking statements as that term is defined in the private securities litigation reform act of 1995. Such forward- looking statements are subject to risks and uncertainties, which could cause actual results to differ materially from estimated results. Such risks and uncertainties are detailed in filings with the securities and exchange commission.

This news release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction.

CONTACT: AZCO Mining Inc.

Jim Paterson, 604/ 682-7286