Jiangsu Huangzhai Construction Engineering Co., Ltd. is a comprehensive waterproof service enterprise that integrates research and development, production, sales, and construction. It is committed to solving the market demand for building leakage water, focusing on building repair fields such as color steel tile waterproofing, roof waterproofing, bathroom leakage, and exterior wall leakage. The industry leader produces new materials such as waterproof patch, liquid rubber, and liquid marble. In 2010, the company collaborated with several universities in Nanjing to establish a research group on building leakage and launched a series of new leakage repair products. In 2017, the number of distribution stores had exceeded 1000.