[USIP O C 13G Page 13 of 14 Joint Filing Agreement February 14, 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 Colonial Holding Company Limited Commonwealth Insurance Holdings Limited Colonial First State Group Limited First State Investment Management (UK) Limited] [USIP O C 13G Page 14 of 14 Item 7 Information 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 First State Investment Management (UK) Limited IA (UK registered) First State Investments (Hong Kong) Limited IA (HK registered) EX-99.2] [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 NUMBER OF SHARES BENEFICIALLY]