China's trade surplus for the first half of 2007 could top US$100 billion. AP said total trade with the United States during the same period could top US$1 trillion, up 24% from the same period in 2006, citing a state media report. The trade surplus reached US$85.7 billion between January and May, said Yao Jingyuan, chief economist at the National Bureau of Statistics. Meanwhile, US lawmakers continue to call for legislation to impose higher tariffs on Chinese goods and are clamouring for Beijing to release controls on the yuan. Last year, China said its global trade surplus in 2006 was US$177.5 billion. But the huge trade gap is also creating some problems for Beijing, which is forced to take billions out of the economy every month to reduce upward pressure on prices.