TORONTO, ON. (April 6, 2010) – GMP Capital Inc. (“GMP”) (TSX: GMP) plans to announce its financial
results for the three months ended March 31, 2010, and host its Annual General Meeting of
Shareholders (the “Meeting”), on Friday, May 7, 2010. A conference call and live audio webcast to
discuss GMP’s first quarter results will also be held at 9:00 a.m. (ET). Kevin Sullivan, Chief Executive
Officer, and Christine Drake, Chief Financial Officer, will host the call along with a question and
answer session for analysts and institutional investors.