币界网报道：According to Bloomberg, Hong Kong's MPF managers have drawn up a preliminary plan to reduce their holdings of U.S. debt within three months if the United States loses its last AAA credit rating. Under local regulations, funds operating under Hong Kong's HK$1.3 trillion (US$166 billion) mandatory provident fund scheme can only invest more than 10% of their assets in U.S. Treasuries if they receive an AAA or equivalent rating from a recognized rating agency in the United States. After Moody's downgraded last month, only Japan's Rating & Investment Information Inc., an approved agency, still maintains its highest rating for the United States. Although R&I said it was not considering downgrading the U.S. rating, the Mandatory Provident Fund Scheme Administration urged pension fund managers last month to develop "contingency plans" to cope with a rating downgrade.