Gran Colombia Gold Corp.

Gran Colombia (TSX: GCM, OTCQX: TPRFF) is a Canadian-based mid-tier gold and silver exploration, development and production company with its primary focus in Colombia. Gran Colombia is currently the largest underground gold and silver producer in Colombia with several underground mines and two processing plants in operation at its Segovia and Marmato Operations. Gran Colombia is currently in the midst of an expansion and modernization project at its high grade, production stage Segovia Operations. In recent years, Gran Colombia has successfully implemented a number of cost savings initiatives, bringing its All-In Sustaining Cost (AISC) to US918 per ounce in 2017 and expected to be below US950 in 2018