He was Vice President, Finance of Westmin Resources Limited from 1989 to 1995. In 1996, he became Vice President, Finance of Silver Standard Resources Inc. and held this position until his retirement in 2007. He formed his own holding company in 2008 which invests in various publicly traded companies and real estate. Mr. Mitchell earned a Bachelor of Commerce Degree from the University of British Columbia in 1971 and earned his Chartered Accountant designation from the Institute of Chartered Accountants of British Columbia in 1973.