Gran Colombia Gold Completes Extension of Maturity of US$47 Million of Senior Secured Convertible Debentures to 2024

TORONTO, ON--(Marketwired - May 31, 2017) - Gran Colombia Gold Corp. (TSX: GCM) announced today that the previously disclosed extension of a portion of its 2020 Debentures to 2024 (the "2024 Debentures") through a consent solicitation process (the "Consent Solicitation") has been completed this morning.