PARTIAL ASSIGNMENT AND BUSINESS COLLABORATION CONTRACT OF MINING RIGHTS FOR THE DEVELOPMENT OF A MINING PROJECTPartial Assignment and Business Collaboration Contract • February 10th, 2012 • Colombia Energy Resources, Inc. • Bituminous coal & lignite surface mining
Contract Type FiledFebruary 10th, 2012 Company Industry* Year 0 will be the moment when a definitive agreement is reached in relation to the proven and probable reserves existing in the four mining titles indicated above.