[USIP O C 13G Joint Filing Agreement May , 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 First State Group Limited] [USIP O C 13G 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 Colonial First State Investments Limited IA (AU registered) First State Investment Management] [USIP O C 13G 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 ¨]