I think their first option is selling it but for a price they can recoup some of their initial investment which could explain why they didn't sell a majority of the shares when MBN went to 44c, as for alternate options, who knows if they have that currently in mind.
If there are no suitable buyer, they could still re-register on the ASX or register on TSX and sell their shares to the market, provided that nickel price goes to 6.5US/lb+ and they recommence prodcution but I think they are looking to sell the mine in the first instance.
MBN Price at posting:
8.3¢ Sentiment: Hold Disclosure: Held