Toronto, ON. (June 23, 2008) – GMP Capital Trust (the “Fund”) announced today a monthly cash distribution of $0.14 per unit for the month of June 2008 to be paid on July 18, 2008, to unitholders of record as of June 30, 2008. A cash distribution of $0.14 per unit for the month of June 2008 to be paid on July 18, 2008, was also declared to holders of the Class B limited partner units of Griffiths McBurney L.P.