Argonaut cold is a closed capital company, whereas Castle Gold trades in Canada's TSX, and also operates two gold mines in Mexico.

According to the press release, Argonaut closed a private placement for $143 million to fund the purchase.

Castle Gold's board of directors recommended shareholders to accept the offer by Argonaut.

Source: Marketwire, Inc

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16 Mining Concessions in Nicaragua Acquired

March 2011

Canadian Nikos Explorations acquired 100% of Fortress de Nicaragua, which owns 168.000 hectares of mining exploration rights.

As payment, Nikon transferred 20 million shares of its common stock (with an average price of $ 0.07) to shareholders of Fortress de Nicaragua and 20 million stock options, exercisable at $ 0.1 per share.

Nicaragua: Mining Concessions Swap

February 2011

The Government approved the swap of gold mine concessions between B2Gold Corp and Condor Resources.

Under the agreement between the two companies the concessions known as "La India" and "Espinito San Pablo" will be unified under the name "La India Gold" and will be owned 80% by Condor and 20% by B2Gold Corp.

Argonaut Gold Completes Acquisition of Castle Gold

February 2010

The transaction includes 50% of gold mine “El Sastre”, located to the North of Guatemala City.

Canadian company Argonaut Gold announced it has concluded the acquisition of Castle Gold, who owned mines in Mexico and Guatemala.

According to the press release, “as a result of the compulsory acquisition, Castle is now a wholly owned subsidiary of Argonaut”.

Gold mines in Nicaragua sold for $53 million.

February 2009

B2Gold Corp. made the acquisition from Central Sun Mining, owner of the gold mines in Nicaragua, for $53.7 million.

Central Sun Mining was the owner of the Limon and the Orosi mines, and had an option to acquire 100% of the Mestiza gold mine, also located in Nicaragua.

For the purchasing company, B2Gold Corp., from Canada, operation of the mine will allow it to add Nicaraguan gold production to its assets.