Hi Cheeky!
I checked out the story a couple of years ago and did not end up buying any SDRG but I do know of a company in Mexico near their holdings that has informed me they are in play. It is my understanding they have a few good projects in Mexico but were unable to fund any work, and the main interest is directed to China, so there may be some truth to what I am hearing. However I know almost nothing about the company.
cheers!
mike