 Source: Streetwise Reports 1623 We dont mine anything, says tech company that uses bioleaching to recover precious metals from recovered mine waste. BacTech Environmental Corp. BAC:CSE;BCCEF:OTCQB;OBT1:FRA is hoping to start construction soon on its bioleaching plant in Tenguel, Ecuador. It has received its construction permit and approval from the government for its environmental impact study on ...... 