Oroco Announces Increase in Size of Private Placement

VANCOUVER, British Columbia – (March 15, 2012) Oroco Resource Corp. (TSX-V: OCO) (“Oroco” or “the Company”) today announces an increase in the size of the private placement financing (the “Financing”) it previously announced by news release dated March 2, 2012.

The Company has increased the size of the financing from 4,830,000 units to 5,870,000 units at a price of $0.25 per unit for gross proceeds of $1,467,500. Unit terms remain the same.

The proceeds of the financing will be used for the continuing development of Oroco’s Cerro Prieto Project in Sonora State, Mexico and for general working capital.

For further information, please contact:

Mr. Craig Dalziel, President and CEO Oroco Resource Corp.

Tel: 604-688-6200

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.