On February 28, 2017, the People's Government of Gushi County and Henan Liying Environmental Technology Co., Ltd. signed an investment agreement. According to the agreement, Henan Liying Environmental Technology Co., Ltd. registered and established Gushi County Liaojie Medical Waste Disposal Co., Ltd. in Gushi County, responsible for the construction, operation and management of the Gushi County Medical Waste Centralized Disposal Center. On July 2, 2018, the company obtained the project filing documents, and the project preparation and construction work began.