Among them, companies owed a large amount of social insurance payment including Saigon Posts and Telecommunications Service Joint Stock Corporation (SPT). (District 1) with nearly VND33 billion (US$1.4 million), Vietnam Petroleum Transport Joint Stock Company (District 3) with more than VND18 billion (US$792,517), Phano Pharmaceutical Joint Stock Company (Phu Nhuan District) over VND13 billion (US$572,373) and Petro Vietnam Engineering (Nha Be District) with over VND11 billion (US$484,886).