[13G USIP O C Page 13 of 14 Joint Filing Agreement June 3, 2013 This Agreement may be executed in multiple counterparts, each of which shall constitute an original, one and the same instrument. Commonwealth Bank of Australia John Damien Hatton Company Secretary Colonial Holding Company Limited John Damien Hatton Director Commonwealth Insurance Holdings Limited John Damien Hatton Director Colonial] [13G USIP O C Page 14 of 14 Item 7 Information [PLEASE CONFIRM THIS CONSTITUTES ALL OF THE SUBSIDIARIES HOLDING THE SECURITIES] The securities being reported on by the reporting persons herein as parent holding companies are owned, or may be deemed to be beneficially owned as follows: Company Type of Company Realindex Investments Pty Limited IA (AU registered) Colonial] [1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Commonwealth Bank of Australia 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ¨ x (a) 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION Australian Capital Territory, Commonwealth of Australia]