I've never been invested in MDMN. It first came to my attention in, I think, 1999 or 2000. That's quite long enough ago. I didn't even know they'd started out in 1989. Yes, they began with entirely different claims, but shifted their interests to Chile fairly quickly. At least in the MEMN sense of the word "quick".
Bottom line: if their claims were as valuable as many seem to believe, then serious mining companies WOULD be interested. But that is not the case, and hasn't been for... 24 years.