A nominee is an organization in whose name a security is...

A nominee is an organization in whose name a security is registered though true ownership is held by another party while a custodian is as a financial institution responsible for safeguarding an individual's financial assets.

In short, UBS Nominees Pty LTD can appear as the older of shares but without being the real owner because the real owner is a rich person in London or elsewhere.

Of the 6 registered holders of securities, UBS Nominees Pty Ltd, Citicorp Nominees Pty Ltd, Various Custodians, Warbont Nominees Pty Ltd, Brispot Nominees Pty Ltd and Various Custodians only Brispot Nominees Pty Ltd seems to be owner and beneficiary at the same time, that is, the only entity that bough shares on is on right. All the others are just doing a favor, so to speak, to somebody else in return for a fee.

UBS says that the group became a substantial holder on the 20 of April 2011, but if you look at annexure 'A' you cannot figure why. Actually what you can see there is the group returning on that day 100,000 shares that a member must have borrowed. As you are looking for a net amount of more than 183 million shares the 4 or 5 pages of data in Annexure A seem to be useless as they only show small amounts being sold and bought since January. The only thing that we know is that there was a capital raising which we can legitimately assume to have propelled the UBS group of nominees and custodians to the position of substantial older AFTER the 39.3 million worth of additional shares have been allocated.

In my opinion something like this may have happened:

24,252,774 shares to Brispot Nominees Pty Ltd so that they may sell them as soon as possible at a profit (this people tend to make a living out of fees and not of having to run risks holding stock) plus some more millions to some beneficiaries with annual income above the $250,000 mark, (the so called, sophisticated investors living in London or Geneve) plus an undisclosed amount through the retail component as, apparently, each beneficiary (the ones with annual income bellow $250,000) were entitled to 197,638 shares each. And this, of course, at the expense of those unsophisticated investors that got nothing.