Arsenic you no doubt will get with Cobalt Nickel deposits the more of it the less attractive they become.
A lot of the high grade deposits in Canada are known for it but i think they have an active plant that can still process it.
Another high grade deposit in Australia ARVs Carlow Castle has quite high levels they are currently commissioning there plant and interested to see how they will process it.
I think they should concentrate on the gold first as would be easier to process and thus create cash flow for the other projects.
HGM Price at posting:
2.4¢ Sentiment: Buy Disclosure: Held