CMC Electronics Inc. Welcomes New President and CEO

Mr. Jean-Pierre Mortreux as President and Chief Executive Officer of CMC Electronics Inc(MONTREAL and OTTAWA, Canada - September 9, 2004) The Board of Directors of CMC Electronics Inc. is pleased to announce the appointment of Mr. Jean-Pierre Mortreux as President and Chief Executive Officer of CMC Electronics Inc., effective September 7, 2004.

Mr. Mortreux has over 25 years of experience in the aerospace industry where he has achieved an impressive record of accomplishments. Mr. Mortreux joins CMC from Thales Avionics North America, based in Montreal, where he held the position of President and CEO since 2002. Previously, he spent six years as President and CEO of Thales Avionics Canada Inc. and Vice President / General Manager of the company's Regional and Business Aircraft business unit in Montreal. He was President and CEO of Sextant Avionique Inc. USA (Miami and Seattle) from 1991 to 1995, during which time he established the company's first subsidiary outside Europe.

Mr. Mortreux holds a degree in Engineering from the École Spéciale des Travaux Publics in Paris, as well as a degree in Public Administration and Economics from the Institut d'Études Politiques in Paris.

Mr. Mortreux is a highly distinguished aviation executive who brings extensive capabilities in leading the development, marketing, manufacture and support of aerospace electronics products and systems. The Board of Directors is very pleased to welcome Mr. Mortreux at this exciting time in CMC Electronics' evolution to lead the company's aviation electronics growth initiatives.

CMC Electronics designs and produces leading technology electronics products for the aviation and global positioning markets. Its principal locations are in Montreal, Quebec; Ottawa, Ontario; and Chicago, Illinois. The company's capabilities are broadened by NovAtel Inc., its subsidiary in Calgary, Alberta.

CMC Electronics is a private company controlled by an investor group led by ONCAP L.P. ONCAP is a CDN $400 million investment fund established by Onex Corporation and a number of leading Canadian financial institutions. Onex Corporation is a diversified company with annual consolidated revenues of approximately CDN $16 billion and consolidated assets of approximately CDN $14 billion. Onex is one of Canada's largest companies with global operations in the service, manufacturing and technology industries.

Contact

Mrs. Janka Dvornik
Public Relations Manager
CMC Electronics Inc.
Telephone: (514) 748-3113
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