This is their La Guitarra Silver mine in Mexico.  

 FIRST MAJESTIC SILVER CORP. (AG: NYSE; FR: TSX) (the "Company" or "First Majestic") is pleased to announce that the expansion that commenced at the La Guitarra Silver Mine in November 2012 is now complete. The processing plant's capacity increased by 40% to 500 tpd from 350 tpd and commercial production is expected to reach 500 tpd during the month of May.

The construction of the new circuit was completed on budget and has been operating since April 24, 2013, without disrupting operations in the old 350 tpd circuit. This new circuit, resulting from the installation of a new ball mill and new flotation cells, is anticipated to produce approximately 1.2 million ounces of silver equivalent annually, representing over one million ounces of pure silver plus a modest amount of gold.

The next planned plant improvements include an enclosed reactor for leaching of the silver-gold concentrates which are currently being produced on site, of which a portion are being transported to the La Parrilla Silver Mine for production into silver doré bars. This new leaching circuit will allow for the concentrates to be transformed into precipitates and then into silver doré bars on site at the La Guitarra Silver Mine, significantly reducing smelting/refining charges as well as reducing transportation costs. Planning is underway for this additional mill upgrade to 1,000 tpd and the permitting is expected to conclude in the coming months. The installation of this reactor is planned to be completed in early 2014 which will further improve the economics of the La Guitarra mine.