GCM Graduated to Toronto Stock ExchangeGran Colombia Gold Corp. will begin trading on the Toronto Stock Exchange as a mining issuer at the open on Thursday, Dec. 23, 2010, according to the TSX. The TSX reports that Gran Colombia, which currently trades on the TSX Venture Exchange, will delist from the TSX-V at the close on Wednesday, Dec. 22, 2010. Its trading symbol will remain GCM. The company's executive co-chairman is Serafino Iacono. It is trying to bring the Gran Colombia mine (formerly known as Frontino) in Colombia to production.