Hebi Lansai Environmental Protection Technology Co., Ltd. was established in August 2017. It is a holding subsidiary invested and constructed by Xi'an Lanxiao Technology New Materials Co., Ltd. in Hebi. Lanxiao Technology is a national key high-tech enterprise specializing in adsorption separation materials and system devices in the domestic industry. It integrates research and development, production and sales. It is the vice chairman unit of China's ion exchange resin industry. Listed companies (Lan Xiao Technology 300487).