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The Bush administration has also urged the Chinese government to accelerate exchange rate reforms, including at a high-level economic dialogue last month. But on Monday the Treasury Department said no more legislation was needed to prod China to move faster.

Alan Holmer, the Treasury department's special envoy to China, would not say whether Treasury would formally label China a currency manipulator in a semi-annual report on foreign exchange practices of key trade partners also due out on Wednesday.

Beijing says Washington's lax economic policies are to blame for the trade gap.

"Economic and trade issues should not be politicized, and related problems, especially ones arising from the US domestically, should not be dragged into China-US economics and trade," Qin said.

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