Bank of America Merrill Lynch in Hong Kong has lost its head of exotics trading, Zhenyu Duanmu, who had been with the firm for nearly 16 years, SRP has learned. Duanmu started with Merrill Lynch in 1996 at its New York office and relocated to Hong Kong in 2007 as head of exotics trading for Asia. A company spokesman declined to comment on Duanmu's departure, which coincides with the departure of several staff from the bank's equity desk in Tokyo. In addition, chief equity strategist, Masatosh