You should also consider BKI. Same as MLT, CHO (Millner Bros and the like) but the discounts to NTA tend to be greater for a variety of reasons, its newer, a little off the radar etc.
In fact, the best strategy is to own all of AUI, DUI, ARG, MLT, CHO, BKI if for no other reason than participating in the annual SPP's and occasional rights issues. The above are generally beneficial to those shareholders with smaller holdings, and it enables to get to get to a critical mass cost effectively and without too much fuss.
CHO Price at posting:
0.0¢ Sentiment: Buy Disclosure: Not Held