“Portage”) announces that it has entered into an option agreement (the

“Assignment Agreement”) with Roscan Minerals Corporation (“Roscan”) whereby Portage has

grated Roscan the option to purchase its option to earn a 70% interest in 5 patented and 19

unpatented mineral leases located in Mineral County, Nevada (the “Property”).

In order for Roscan to exercise its option pursuant to the Assignment Agreement, it must (i) pay

US$20,000 to Portage; (ii) issue 100,000 common shares of Roscan to Portage prior to December

31, 2010; (iii) make all expenditures required to be made on the Property on or before December

31, 2010; and (iv) pay all fees or costs assessed by the Bureau of Land Management with regard

to the Property from and after August 31, 2010.

Portage was granted the option to earn a 70% interest in the Property pursuant to an option

agreement (“Option Agreement”) between Portage and Columbus Gold. Roscan will assume all

of the rights and responsibilities assigned to Portage under the Option Agreement. The

Assignment Agreement is subject to regulatory approval and acceptance by Columbus Gold.

For more information, please contact: