its economy is still growing and its banking system is solvent . It is seeking a bigger role as global powers seek to reshape the economic and financial framework . The global economic crisis has shown just how codependent the U.S. has become with China . Watch how China is throwing its weight around before the summit '' For years , China has exported far more than it has imported , racking up a huge trade surplus and accumulating nearly US$ 2 trillion in foreign currency reserves . More than half of that money has gone to buying U.S. government debt . It 's partly those Chinese dollars that have enabled the United States to keep its interest rates , including home mortgages , so low , helping create the housing bubble that burst late last year . As America 's biggest creditor , Beijing is now worried about its over-investment in U.S. Treasury debts . `` We have lent a huge amount of money to the U.S. , '' Premier Wen Jiabao said last month . `` Of course , we are concerned about the safety of our assets . '' He called on the Obama administration to ``
BEIJING , China -LRB- CNN -RRB- -- If money is power , China is now in a powerful position to play a critical role at the Group of 20 summit in London . U.S. President Barack Obama meets with Chinese President Hu Jintao in London on April 1 . So powerful , in fact , that some analysts speak of a `` G-2 '' , referring to the first meeting between the new U.S. president and his Chinese counterpart on the sidelines of the G-20 . What matters most in the G-20 , some say , is Barack Obama and Hu Jintao 's meeting on the eve of the summit . `` This is a summit of symbolism , where the meeting itself is the message , '' said China analyst Victor Gao . To be sure , the closest U.S. allies are Great Britain in Europe and Japan in Asia . But with its growing economic and military clout , China is now a major player at the G-20 . China `` appears to be actively setting the agenda , '' said Glenn Maguire , economist at the investment bank Societe Generale . China is awash with cash ,