They would be placed in halt pending the release of announcement...

They would be placed in halt pending the release of announcement and then once announced resume trading as they still have plenty of cash, imo would be better for them to cease or atleast reduce production until conditions are more favourable, is it really a stock you wish to be holding in this environment? there are plenty of strong companies that have been sold down just as much- you could swap MRE for a more resilient company WSA and IGO appear to be the lowest cost Ni stocks with plenty of cash but that's your choice.