Did a Google and found an old article from ResourceStocks.
I am sure there is more recent info out there.
The article listed:
Ichiya Co 41.40%
Dragon Securities 12.14%
HSBC Custody Nominees 8.68%
HSBC Custody Nominees 3.44%
Merrill Lynch (Aust) Nominees 2.43%
Ichiya is a Japanese company with its hands in everything from Pet Funerals to Real Estate.
Bit surprised to see HSBC and Merrill Lynch in there.