Carlos Ríos

Touchstone Gold Ltd. operates as an exploration stage company. It engages in the mining, exploration and development of gold properties in Colombia. The company operates through its wholly owned subsidiaries, which hold interest in the Rio Pescado Project and Santa Rosa Project. It has operations in Colombia, Panama and the United Kingdom. The company was founded on June 29, 2009 and is headquartered in London, the United Kingdom.

CEMEX Latam Holdings SA engages in the production, marketing, distribution, and sale of cement, ready-mix concrete, aggregates, and other construction materials. It operates through the following segments: Colombia, Panama, Costa Rica, Rest of CLH, and Others. The Rest of CLH segment includes the combined operations of the company in Guatemala, Nicaragua, and El Salvador. The Others segment refers to the corporate office in Spain and its research and development offices in Switzerland. The company was founded on April 17, 2012 and is headquartered in Madrid, Spain.

Continental Gold Inc. engages in the development, acquisition, exploration and evaluation of gold resource properties. Its projects include Buriticá, and Berlin. The company was founded on April 27, 2015 and is headquartered in Medellin, Colombia.