Brian Gu, head of the Greater China merger-advisory unit of JPMorgan, an investment bank, and an adviser to China Oilfield Services on the recent deal, says he has never been busier.

He used to be the legal adviser of China International Trust and Investment Corporation Shantou Branch and a lawyer with Guangdong law Office.

Peter Drucker spent four years in Britain as an adviser to investment Banks. He then came to the United States.