He claims that its much easier to do business in the UK. "If we compare [the United States and the European Union], the U.S. is more open than the EU," he said. "But the U.K. is the most open." In late 2013, the British Prime Minister David Cameron went on a trade mission to China, resulting in over £5.6 billion ($9.3 billion) in trade deals between the two countries. "We are determined to do all we can to throw open the door for British companies to benefit from China's vast and varied markets," said Cameron when the deals were announced.