Weihai International Economic & Technical Cooperative Co., Ltd. (abbreviated as WIETC) is a Chinese construction contractor that specializes in overseas construction and engineering projects. Based on international project revenue of $228.8 million in 2012, the company was listed among the 250 largest international contractors by the Engineering News-Record.The company has a major presence in building key infrastructure in Congo-Brazzaville including 15 projects, according to a 2009 report.