NZC a good share to hold

Cobalt has more than doubled in a year. Below the LME price graph from 01-feb-2017 until now.
I think it will continue to rise because other than Lithium, there is less of it and new finds are not very frequent.
NZC is a good share to keep at least for a few years. Keeping expected CAPEX and OPEX at the same level, expected gain  of a Cobalt focused company must have tripled or more in the last year. And this is only the beginning. Cobalt may easily double again in value this year IMHO.
Keep your stock or buy more if you can.

Here's one year of Cobalt: