JOINT FILING AGREEMENT

EXHIBIT 1

JOINT FILING AGREEMENT

     We, the signatories of this Statement on Schedule 13G/A to which this Agreement is attached, hereby agree that such Statement is, and any amendments thereto filed by either of us will be, filed on behalf of each of us.

	Temasek Holdings (Private) Limited
		/s/ Simon Israel
	Name:	Simon Israel
	Title:	Executive Director
	Date:	September 30, 2008
	Fullerton Management Pte Ltd
		/s/ Xxxx Xxx Vi Loong
	Name:	Xxxx Xxx Vi Loong
	Title:	Director
	Date:	September 30, 2008
	Centaura Investments (Mauritius) Pte Ltd
		/s/ Xxxxxxx Xxxx Xxxxx Xxxx
	Name:	Xxxxxxx Xxxx Xxxxx Xxxx
	Title:	Director
	Date:	September 30, 2008
	Cairnhill Investments (Mauritius) Pte Ltd
		/s/ Xxxx Xxx Vi Loong
	Name:	Xxxx Xxx Vi Loong
	Title:	Director
	Date:	September 30, 2008
	Charlton Investments (Mauritius) Pte Ltd
		/s/ Xxxx Xxx Vi Loong
	Name:	Xxxx Xxx Vi Loong
	Title:	Director
	Date:	September 30, 2008
	Crescent Investments (Mauritius) Pte Ltd
		/s/ Xxxx Xxx Vi Loong
	Name:	Xxxx Xxx Vi Loong
	Title:	Director
	Date:	September 30, 2008
	Clover Investments (Mauritius) Pte Ltd
		/s/ Xxx Xxxx Siang
	Name:	Xxx Xxxx Siang
	Title:	Director
	Date:	September 30, 2008