On March 15, 2001, EXFO Electro-Optical Engineering Inc. acquired Efos Inc. for US$25 million and 3.7 million subordinate voting shares of EXFO. The aggregate purchase price was approximately $171 million.
EXFO was advised by a team from Fasken Martineau that included, among others, Robert Paré, Peter Villani and Frédéric Boucher (corporate) and Claude Auger (tax).