Complex sentence: The purpose of Central Huijin is to create an organizational structure by which the PRC government can operate as a shareholder for the large "big four" state owned banks, therefore to improve corporate governance and initiate reforms of the banking sector.
Split into simpler sentences: The purpose of Central Huijin is to create an organizational structure by which the PRC government can operate as a shareholder for the large "big four" state owned banks. Therefore to improve corporate governance and initiate reforms of the banking sector.