Mr. Brennan was formerly the President and Chief Executive Officer of Sierra Metals Inc and President and Chief Executive Officer of Largo Resources Ltd. He was the Co-Founder of Brasoil do Brasil Exploracao Petrolifera S.A. In addition, he has been President of Linear Capital Corporation, a private merchant bank, since February 1998.
他曾担任Sierra Metals Inc .的总裁和首席执行官,以及Largo Resources Ltd.的总裁和首席执行官。他是Brasoil do Brasil Exploracao Petrolifera S.A.的联合创始人。此外,自1998年2月以来,他一直担任Linear Capital Corporation(一家私人商业银行)的总裁。