Hi-Shear Announces an Amendment to Form 10-K for Fiscal Year 2009

Hi-Shear Technology Corporation (NYSE Amex: HSR) today announced an amendment to its Form 10-K for fiscal year ended May 31, 2009.

The balance sheet for years ending May 31, 2009 and ending May 31, 2008 remain unchanged from their original filing. The Company is filing this Amendment to comply with new reporting requirements for the Company pertaining to Form 10-K. Form 10-K requires that both the current and previous years’ balance sheets be reported. The Company’s original Form 10-K included only the current year balance sheet, and this amendment is issued to show both fiscal years 2008 and 2009 to the 10-K report. To support the addition of the 2008 balance sheet, a report by the independent registered public accounting firm, Raimondo Pettit Group, is also included with this amendment.

This amendment also incorporates the new attachments to the 2009 reporting year 10-K. While the new attachments were originally filed with the 10-K report on August 5, 2009, they were not posted to the public website. This amendment will facilitate that public filing.

Hi-Shear Technology Corporation provides pyrotechnic, mechanical, and electronic products to prime aerospace customers for use in aerospace and defense markets where safety, performance and high reliability are essential. It develops and produces advanced systems and products that are primarily used worldwide in space satellites, launch vehicles, national defense, and government programs.

This release, as it relates to product announcements and other Company matters, contains forward-looking statements, which are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Investors are cautioned that all forward-looking statements involve risks and uncertainties including, without limitation, risks related to market acceptance of and demand for the Company’s new products, dependence on the uncertainty of government budgetary issues, primary government contracts, and intellectual property rights.

The Company’s Amendment to Form 10-K will be filed with the Securities and Exchange Commission on September 18, 2009. The Amendment to the Form 10-K will be available for download at www.hstc.com. For more information regarding this release or general information about the company contact Ms. Linda A. Nespole, [phone].