BacTech Mining Corporation, a Toronto-based company, has signed a memorandum of understanding with Gold Bullion Development Corp. of Cobalt to investigate the feasibility of using BacTech’s proprietary bioleaching technology to process tailings from the Castle Mine in Gowganda, 50 kilometres west of Cobalt. BacTech has already started to raise funds for a $20 million pilot plant in Cobalt that could be expanded to process some 16 to 18 million tonnes of tailings resulting from silver mining activities between 1903 and 1922….more at MEIOnline