Henan Qingshuiyuan Technology Co.Ltd(300437) announcement: in order to further improve the layout of the company's upstream and downstream industrial chain and make full use of the company's existing products, production capacity and technical reserves, Jiyuan Qingyuan Water Treatment Co., Ltd., a wholly-owned subsidiary of the company, plans to invest in the construction of a project with an annual output of 100000 tons of phosphorus pentachloride. The estimated investment of the project is 308 million yuan, and the construction period is 2 years.