On March 7, 2006, Frontera Copper Corporation announced that it had closed its offering of $25 million principal amount of senior unsecured notes of the company for total gross proceeds of $23.25 million. On March 17, 2006 Frontera announced that it had issued an additional $3.75 million principal amount of senior unsecured notes of the company, which had been issued pursuant to the over-allotment option granted to the underwriting syndicate in conjunction with the previously announced debt offering. The closing of the over-allotment option increased the total gross proceeds of the offering to approximately $26.74 million. The net proceeds of the offering are to be used to fund the balance of the initial capital expenditures at the company's wholly-owned Piedras Verdes copper project in Sonora, Mexico. The underwriting syndicate was led by RBC Capital Markets and included Haywood Securities Inc., Orion Securities Inc. and BMO Nesbitt Burns Inc. RBC Capital Markets was a advised by a team from Fasken Martineau including John Turner, Greg Ho Yuen, William Bies, and Bozidar Crnatovic.