60 minutes. According to checking the jobhub.com, Tianjin Venture Environmental Protection interviews are two rounds of interviews, the first round of interviews are HR interviews for 20 minutes, and the second round of interviews are business interviews for 40 minutes. Tianjin Chuangye Environmental Protection Co., Ltd. is a joint-stock limited company incorporated on June 8, 1993 in the People's Republic of China*** and the State.