VVC EXPLORATION CORPORATION announces the amendment of the expiry date and exercise price of 9,521,429 Series S Warrants to purchase 9,521,429 shares @ $0.12 per share, as permitted under the new TSX Venture Exchange Policy. The warrants, which were expiring on April 11, 2012, will now expire on April 11th, 2013, and will be exercisable at $0.12 per share up to April 11th, 2012 and thereafter at $0.18 per share. These warrants were attached to a private placement of $770,000 approved by the TSXV in April 2011. The warrants are not currently in-the-money, however, since November 2011, two warrant holders exercised an aggregate of 1,478,571 warrants. The TSXV consented to this warrant extension and price adjustment on April 5.

Gold Resource Corporation announced its preliminary production results for the first quarter ended March 31, 2012 of approximately 30,500 ounces precious metal gold equivalent (AuEq). Production increased approximately 53% from the previous quarter, and 308% from first quarter of 2011, establishing new record production for the Company. Gold Resource Corporation is a low-cost gold producer with operations in the southern state of Oaxaca, Mexico. The Company has returned over $43 million to shareholders in monthly dividends since declaring commercial production July 1, 2010 and now offers shareholders the option to convert their cash dividends into physical gold or silver.

Primero Mining Corp. announced today that it plans to release its first quarter 2012 results on Thursday, May 3, 2012. The Company also announced that it will host its Annual General and Special Meeting of Shareholders on Monday, May 28, 2012. Primero has filed its 2011 management’s discussion and analysis of financial condition and results of operations and 2011 audited financial statements on SEDAR (www.sedar.com) and Edgar (www.sec.gov). Shareholders may request, free of charge, a hard copy of the audited financial statements upon request to [email protected].

GREAT PANTHER SILVER LIMITED is pleased to announce the appointment of Ms. Rhonda Bennetto to the position of Vice President, Corporate Communications effective April 12, 2012.

Mercator Minerals Ltd. announces the appointment of Mr. Daniel Tellechea to the Company’s board of directors and the resignation of Mr. Gavin Thomas from the board, both effectively immediately.