News Release   May 06 2004 OSI Announces Technology Partnerships Canada Strategic Investment Vancouver, Canada -- Offshore Systems International Ltd (OSI) (TSX: OSI / OTCBB: OFSYF) announced today that Technology Partnerships Canada (TPC), an agency of Industry Canada, will be making a strategic investment of $3.76 million in a research and development initiative dedicated to improving geographical display capabilities in defense and navigation systems. The TPC investment is part of a $12.5 million multi-year project being undertaken by OSI to advance the implementation of electronic geography for military navigation and command and control systems. The integration of high-performance mapping and imagery displays will contribute to the identification of surface and underwater threats and permit safer and faster movement of ships by enabling them to stay on course, reducing groundings and collisions. A portion of the project will support the advanced development of COP-IDS. COP-IDS™, initially launched in early 2003, manages and displays electronic geography, enhancing combat effectiveness and making military operations safer. COP-IDS™ uses digital map data from a number of sources and creates a single fused display for the military chain of command. Enhanced interoperability, a major goal of many international defence forces, is one of COP-IDS™’ key benefits. John Jacobson, Chief Executive Officer of OSI, said, “We’re using this new investment to enhance the military naval navigation capabilities of ECPINS® and to drive the advanced development of our COP-IDS™ command and control technology.” A portion of the $3.76 million will fund eligible development expenses incurred from the eligibility date of May 2003 to the Government of Canada’s announcement on April 26, 2004. TPC’s investment will be repaid through a royalty on revenues resulting from the commercialization of innovations developed under this project. About Offshore Systems International Ltd. Offshore Systems International Ltd (OSI) is a leader in electronic geography. The company’s core strengths lie in the ability to produce, manage and display many forms of geographic data. The company provides display systems and data for several defense, government and commercial customers. OSI conducts its operations through three business units: OSI Geomatics (data production and distribution), OSI Navigation Systems, and OSI Applications (products and services for command and control systems). OSI’s common shares are listed for trading on the Toronto Stock Exchange (TSX:OSI) and the OTC Bulletin Board (OTCBB: OFSYF). For more information please visit www.osil.com. Forward-Looking Statements This news release contains discussion of items that may constitute forward-looking statements within the meaning of securities laws including Section 27a of the Securities Act of 1933, as amended, and Section 21e of the Securities Exchange Act of 1934, as amended, with respect to achieving corporate objectives, developing additional project interests, OSI’s analysis of opportunities in the acquisition and development of various project interests and other matters. These statements are made under the ‘safe harbour’ provisions of the Private Securities Litigation Reform Act of 1995 and, as such, involve known and unknown risks and uncertainties and other factors that may cause the actual results to be materially different from the results implied herein. Although Offshore Systems International believes the expectations reflected in such forward-looking statements are based on reasonable assumptions, it can give no assurances that its expectations will be achieved. Factors that could cause actual results to differ from expectations include the effects of general economic conditions, changing foreign exchange rates, actions by government authorities, uncertainties associated with contract negotiations, and industry supply.   For more information contact: Jane Hayward Investor Relations +1 613 287 0462 or +1 888 880 9797 +1 613 287 0466 (FAX) invest@osigeospatial.com