China Needs Urgent Review of U.S. Debt, Financial News Says

China should urgently assess risks from being the main foreign investor in U.S. debt and diversify its foreign-currency reserves more quickly, the Financial News reported today, citing Xia Bin, a central bank adviser.

In the short term, China can adjust the structure of the reserves, the central bank publication cited Xia as saying. Longer-term, the key is to keep foreign-exchange holdings at a “reasonable” level, according to Xia, an academic member of the monetary policy committee of the People’s Bank of China.

Central bank Governor Zhou Xiaochuan pledged this month to “closely” monitor U.S. efforts to tackle its debt burden. The global stock market rout that saw Tokyo shares sliding this morning follows Standard & Poor’s downgrade of the U.S. debt rating from AAA and a widening of Europe’s sovereign-debt crisis.

China is the biggest foreign owner of U.S. Treasuries, with more than $1 trillion of the securities, and its foreign-exchange reserves are the world’s largest at more than $3 trillion.

The U.S. economy has entered a long cycle of economic weakening that will put pressure on China’s holdings of dollar assets, Xia wrote in a microblog on Aug. 6. He is the director of the Finance Research Institute at the Development Research Center of the State Council, China’s cabinet.

China should buy more non-financial assets with its reserves to diversify risks, Xia wrote, adding that the country should also pursue national strategic interests, and seek to globalize the yuan. He previously said that China should use its reserves to increase holdings of gold and some other precious metals.