There is one special title used frequently in business occasions in China, which is "总 zǒng".
In this situation, "总 zǒng" means "cheaf" or "head". It is a short form general manager, chief director, CEO, CFO, president of a company, chairman of the board, etc.
It is used after people last name. Sometimes, although the person is only in charge of a very small section in company, he/she would probably be happy if you address him/her with the title of "总 zǒng" .
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