FWIW: a closed circuit leeching system has been in the plan since (at least) the shareholders meeting held in september 2011. Christian Q admitted to me at that time that they were having difficulty separating the precious metals out of the concentrate being produced by the mill. At that point in time it was already publicly known that the dore was being smelted from a mysterious "super concentrate" which he explained as being concentrate that had to be run though the system at least 4 times. From their press release on 03/01/12 we now know that it was not a "cost effective alternative"
Best regards to all...
Have a nice day!