I don't think any of those PGE minerals are sulphides, they're...

I don't think any of those PGE minerals are sulphides, they're various exotic compounds of PGEs that exist within the sulphide crystals. But reading some of CHN's releases they were saying they considered them to be inclusions with pyrrhotite (25/05/2020). Maybe the PGEs can go with any metal sulphide, but I don't know if CHN have had significant massive nickel sulphide intercepts which are low in PGE. Maybe given a preference the PGEs will go into pentlandite but if there's no nickel around they'll go into pyrrhotite or some other metal sulphide.

Makes you wonder why CPN was sold down so savagely when they reported visuals in core of pyrrhotite, pentlandite, and chalcocite, when it seems all 3 could contain exotic PGE compounds.