想知道係唔係日文?

No, it does not sound Japanese. Do you really mean CHAEBOL?

CHAEBOL is Korean for 財閥. Japanese pronounciation ZAIBATSU. Definition of the term is as follows:
財閥 Chaebol http://en.wikipedia.org/wiki/Chaebol
財閥 Zaibatsu http://en.wikipedia.org/wiki/Zaibatsu
財閥 Chaebol http://gc.sfc.keio.ac.jp/class/2004_14969/slides/09/
財閥 Zaibatsu http://ja.wikipedia.org/wiki/%E8%B2%A1%E9%96%A5
財閥 http://zh.wikipedia.org/wiki/%E8%B2%A1%E9%96%A5

Hope that helps!

肯定唔係(我亞爸係日語老師)