News Release   February 06 2006 OSI to Report 2005 Fiscal Year and Fourth Quarter Results on February 21, 2006 Vancouver, Canada — Offshore Systems International Ltd. (TSX: OSI; OTCBB: OFSYF) will release its 2005 fiscal year and fourth quarter financial results at 4:30 p.m. Eastern Time on Tuesday, February 21, 2006. The company will hold a conference call to discuss the financial results at 5:00 p.m. Eastern Time the same day. The conference call may be accessed live and archived on a listen-only basis via the Internet at: http://www.osil.com/invest.html. Analysts and investors can participate in the live conference call via telephone at: 1-866-400-2280 (toll-free outside Toronto) 1-416-850-9143 (within Toronto and overseas) A telephone replay of the conference call can be accessed until February 24, 2005 at midnight by dialing 1-888-214-7699, passcode 5094477. About OSI Offshore Systems International Ltd. (OSI) is the world’s leading developer and supplier of military navigation systems. Focused on the defense and homeland security markets, OSI delivers advanced systems and software to address the growing need for enhanced situational awareness in command, control, and intelligence applications. By providing essential tactical and geo-spatial information, the company’s systems and software help decision-makers know the precise location of mission operations across all military forces while sharing data with allies. OSI systems are in use by military, government, and commercial customers around the world. The company is publicly traded on the Toronto Stock Exchange (OSI) and the Over the Counter Bulletin Board (OFSYF). For additional information please visit www.osil.com.   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