GDF Suez Chief Executive Gerard Mestrallet attends a news conference to present the company's first-half earnings in Paris August 10, 2011. GDF Suez, the world's biggest utility, and China Investment Corp, are in exclusive talks to seal a $4 billion alliance that will help the French utility fund its expansion in Asia and offer Beijing access to new energy resources. REUTERS/John Schults (FRANCE - Tags: BUSINESS ENERGY)