Russia wants to supply China with all its gas needs, a Russian leader said while in Beijing on Monday, underscoring closer cooperation between the resource-rich country and energy-hungry China. Russian Deputy Prime Minister Igor Sechin told reporters while on a visit to Beijing that Russia is in talks with Chinese partners on plans to launch gas supplies to China starting in 2015, according to the state ITAR-Tass news agency. «Russia is ready to meet China's full demand in gas,» Sechin was quoted as saying in the report. Russia is the world's biggest energy producer and China is the world's largest energy consumer, overtaking the United States last year.