Oct 18, 2012. /Lesprom Network/. Supremex Inc. announced that Mr. L.G. Serge Gadbois has resigned as a member of the Board of Directors of the Corporation (the Board) for personal reasons. Such resignation is effective immediately, as the company said in the press release received by Lesprom Network. Supremex Inc. is Canada's largest manufacturer and marketer of a broad range of stock and custom envelopes and related products. Supremex is the only national envelope manufacturer in Canada, with facilities across six provinces and employs approximately 550 people.