Sigma Mining PermitCompany has been planning to mine Sigma since January 2015 -28 months ago. They must of liked what the all the past data showed to apply for a C of A that early. Company will need to get a C of A for below 388 meters down to 3,000 meters now.
NI 43-101 Technical Report on the 2017 Preliminary Economic Assessment Update for the Lamaque Project.
20.1.2.2.
Documentation was submitted to MDDELCC in January 2015 to allow a small modification to the existing CofA. The modified CofA was received on August 6, 2015. This authorization allows underground mining at a rate of 2,500 tpd from the Sigma mine to level 12, 366 meters below ground surface.