Tesoro Minerals Corp., formerly Auro Resources Corp., is a Canada-based exploration-stage mineral exploration company with land positions in Colombia's leading gold camps. The principal business of the Company is the acquisition, exploration and evaluation of resource properties. The Company operates through acquisition, exploration and evaluation of resource properties segment. The Company's subsidiary, White Gold Corporation (White Gold), is engaged in the exploration and evaluation of resource properties. White Gold, through its subsidiary Oro Barracuda Ltda., owns interest in the Tolimo & Quindio property, Arboledas Gold Project and Surata Gold Project mineral property claims located in Colombia.