He served with the Government of Canada for 15 years , including appointments as Deputy Minister of Industry , Trade & Commerce , Energy , Mines & Resources , and Finance .
Cohen retired as President and Chief Executive Officer of The Molson Companies Limited in 1996 .
Cohen served with the Government of Canada for 15 years , including appointments as Deputy Minister of Industry , Trade & Commerce , Energy , Mines & Resources , and Finance .
Cohen retired as President and Chief Executive Officer of The Molson Companies Limited in 1996 .