Complex sentence: He became the CEO of the Tokai Kensetsu company in 1993, but committed suicide in 2001 by means of seppuku, possibly due to the financial losses suffered by his company.
Split into simpler sentences: He became the CEO of the Tokai Kensetsu company in 1993. He committed suicide in 2001 by means of seppuku, possibly due to the financial losses suffered by his company.