OPTION CONTRACT FOR THE AQUISITION OF RIGHTS OF A MINING TITLEColombia Energy Resources, Inc. • October 26th, 2012 • Bituminous coal & lignite surface mining
Company FiledOctober 26th, 2012 Industry
OPTION CONTRACT FOR THE AQUISITION OF RIGHTS OF A MINING TITLEColombia Energy Resources, Inc. • March 30th, 2012 • Bituminous coal & lignite surface mining
Company FiledMarch 30th, 2012 Industry