Form: SC 13G

Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions

September 7, 2011

EXHIBIT 1

JOINT FILING AGREEMENT

The undersigned, RRJ Capital Ltd, RRJ Capital Master Fund I, L.P. and Greenwich Asset Holding Ltd, hereby agree and acknowledge that the information required by this Schedule 13G, to which this Agreement is attached as an exhibit, is filed on behalf of each of them. The undersigned further agree that any further amendments or supplements hereto shall also be filed on behalf of each of them.

Dated as of September 6, 2011

 

RRJ CAPITAL LTD
By:  

/s/ Ong Tiong Sin

Name:   Ong Tiong Sin
Title:   Director
RRJ CAPITAL MASTER FUND I, L.P.
By:  

/s/ Ong Tiong Sin

Name:   Ong Tiong Sin
Title:   Director
GREENWICH ASSET HOLDING LTD
By:  

/s/ Ong Tiong Sin

Name:   Ong Tiong Sin
Title:   Director