Mirenco Announces Resignation of Chief Operating Officer

RADCLIFFE, Iowa--July 24, 2003--Mirenco, Inc., (OTCBB:MREO) announces the resignation of J. Richard Relick as chief operating officer for the company and the interim appointment of Richard Musal as COO.

Relick recently resigned from Mirenco to focus on his business ventures in the Minneapolis, Minn. area, where he resides. Relick will continue to work as a consultant on special projects for Mirenco.

"I'd like to thank J. Richard Relick for his many contributions to Mirenco and his years of hard work. He will be missed," said Dwayne Fosseen, Mirenco's chairman and chief executive officer.

Musal, Mirenco's chief financial officer, has been named interim COO for the company. Musal began as Mirenco's CFO in December and previously worked as a financial consultant for several central Iowa businesses.

Musal has 30 years of experience in executive business and financial management and financial consulting. He resides in Norwalk, Iowa.

About Mirenco

Mirenco is a Radcliffe, Iowa-based company that specializes in vehicle management technology for reducing vehicle emissions, improving fuel economy, and lengthening the service life of heavy-duty diesel vehicles. More information is available at www.mirenco.com, via e-mail at info@mirenco.com or by calling 800.423.9903.

Some of the statements made in this press release are forward-looking in nature. Actual results may differ materially from those projected in forward-looking statements. Additional information concerning Mirenco, Inc. can be found within Mirenco's filings with the Securities and Exchange Commission. Statements in this release should be evaluated in light of this additional information.