Washington  - As the Obama administration prepared to unveil the next boost for the US financial system on Tuesday, the government has already spent about 300 billion dollars under past president George W Bush's Troubled Asset Relief Programme (TARP).

The second half of the 700-billion-dollar TARP plan is at the disposal of President Barack Obama, and was to be included in Tuesday's announcement by Treasury Secretary Tim Geithner.

To date, the following money has been spent on stabilizing the finance system and loosening credit:

- 235 billion dollars to more than 300 banks around the country. The largest chunks: 45 billion dollars to banking giant Citigroup; 35 billion dollars to its rival Bank of America;
25 billion dollars each to Wells Fargo and JP Morgan Chase. In exchange, the government received bank shares as collateral.

- 40 billion dollars to the international insurance giant AIG, also in exchange for shares. In addition, AIG received 85 billion dollars in credit from the US central bank.

- About 21 billion dollars as credit to General Motors and Chrysler, with part of the money flowing to their consumer finance arms. dpa