"Cozamin was drilled in 2004." 

And by that you mean what, the update lacks validity?

"The total Measured & Indicated (“M&I”) Resource Estimate tonnes increased by 66%, with an 83% increase to contained copper metal to 949 million pounds and a 71% increase to contained silver metal to 39 million ounces of silver. M&I Resource for Vein 20, the principal zone in the Mala Noche Footwall Zone (“MNFWZ”), increased by 118% to 13,086 kt at 2.35% Cu and 52 g/t Ag. The Company is currently updating Mineral Reserves and an updated technical report is expected in Q3 2020."

Sorry, I did not mean to put up a link to fake news.