The logo of Nomura Securities is pictured at the company's Otemachi Head Office in Tokyo, Japan, November 18, 2016.
Charles Wang Zhonghe, China investment banking chairman at Nomura, is prohibited from travelling outside the mainland, said the sources, who sought anonymity as they were not authorised to speak to media.
Asked why the Nomura banker was barred from leaving, Chinese foreign ministry spokesperson Wang Wenbin said he did not have knowledge of the situation at a regular news briefing on Monday.
A Reuters analysis has found an apparent surge of court cases involving such bans in recent years, and foreign business lobbies are voicing concern about the trend.
In August last year, he was also appointed as chairman of Nomura Orient International Securities, the bank's majority-owned securities business headquartered in the commercial hub of Shanghai.
Persons:
Toru Hanai, Charles Wang Zhonghe, Wang, Nomura, Bao Fan, Cong Lin, Bao, Cong, Nomura's Wang, Wang Wenbin, Mintz, Zhong, Selena Li, Kane Wu, Makiko Yamazaki, Liz Lee, Sumeet Chatterjee, Clarence Fernandez
Organizations:
Nomura Securities, REUTERS, Authorities, Nomura Holdings, Nomura, Financial Times, China Renaissance Holdings, HK, ICBC, Commercial Bank of China Ltd, Reuters, Bain & Company, Group, Beijing, European Union, Deutsche Bank, Securities, Nomura Orient International Securities, Thomson
Locations:
Tokyo, Japan, HONG KONG, China, Hong Kong, Beijing, Shanghai