RE:El Teniente They are required to spend 20 million on LZ, so it is considered a liability and not an asset at this point. Former CEO of nevsun even stated that the LZ is not for them to develop. They are just fulfilling the contract terms. Also, Bisha is currently not making any money at all so valuing it at 0 makes sense, if not negative. It will cost nevsun maintenance fees if it had to put the mine on hold, due to zinc production not being economically viable. If it takes them more than 6 months to fix a separation issue, it is not going to get fixed at all.
Timok's value is not 1.5 billion. If that was so, Reservior should have been bought at that price. Nothing has changed much from the Reservoir deal, so Timok's value did not change much.
The only thing that is driving this stock higher is the copper price. Yet if that is the case, I would put my money on other miners to get a higher return, if I am betting on the copper or zinc.
Both zinc and copper are performing better than nevsun, why not just put the money on copper or zinc. This company is just not doing well, that's all.