11:55 AM EST - Silver Standard Resources Inc : announced an operational update for its Pirquitas silver mine in Argentina, and other corporate activities. First Quarter 2012 highlights: the mine produced 2.2 million ounces of silver, a 24% quarter-on-quarter increase. The company lowered direct mining costs to $11.71 per ounce of silver produced, a 22% quarter-on-quarter improvement. Silver Standard Resources Inc
shares T.SSO are trading down $0.24 at $13.92.
