SilverCrest provides update on Santa elena mine expansion plan SilverCrest Mines provides an update on activities for the expansion of the Santa Elena Mine in Sonora, Mexico. The Santa Elena Mine expansion is on budget with initial start up of the new 3000 tpd operation anticipated later this month. New CCD/Merrill Crowe processing plant is 96% complete with final electrical and piping work being completed and tested over the next two weeks. 80% of the major equipment has been tested and passed for initial start up. The remaining 20% will be tested during start up.