Switzerland added to monitoring list
The Treasury report also cited continued concerns about the currency practices of eight other countries - Germany, Ireland, Italy, Japan, Malaysia, Singapore, South Korea and Vietnam - and added a ninth, Switzerland, to its list.
It raised particular concerns about Germany, the world's fourth largest economy, which it said continued to have the world's largest current account surplus and was slipping into recession. It said the German government had a responsibility to undertake tax cuts and boost domestic investment.
The Treasury report said the continued strength of the US
dollar was "concerning," given the International Monetary Fund's judgment that the dollar was overvalued on a real effective basis.