Rosita Mining Corporation announced further positive metallurgical tests for the company's Santa Rita Project presently underway at SGS Lakefield in collaboration with D.E.N.M. Engineering Ltd. In previously reported test results announced on September 21st, 2016, it was concluded that recoveries of gold by cyanide leaching from ground material was more than 90% from the stockpiles and 80% from tailings. 75% gold was recovered from coarser material. Copper recovery from cyanide leaching into solution was 35%. The next stage of testwork reported here, was designed to test the recovery of copper and the recovery of cyanide from these leach solutions via the SART (Sulphidization, Acidification, Recycling, and Thickening) process This SART testwork, has been very successful and is appropriate metallurgically for the Project: The leached gold can be recovered onto carbon in the normal way. An overall recovery of gold from Stockpiles and Tailings is 80-85%. 99% of the copper in the cyanide solution can be recovered as Copper Sulphide concentrate. The cyanide consumption to maximize the dissolution of the gold will be 2.4 Kg /t, much lower than the previously reported leach testwork. Acid leach of the gold leach tailings showed further copper recovery of 34%, thus tota copper recovery 65-70% may be estimated.