NTA is basically the shares issued divided what the company is worth
303,000,000 million share issued ie just over 3 million Kina.
Considering the original shares were issued at 1 kina each(from memory) the original shareholders have been wiped out.
A tranche of shares were I believe issued to nas fund in return for a capital injection and probably to some other parties as well, but I cannot be bothered looking into that,suffice to say that I know of people that did invest at a kina a share and have lost all their money.
Never invest in airline stock, if you want to gamble then that is a different thing altogether, more chance at winning at 2 up I would reckon.