Henan Qinglan Environmental Protection Technology Co., Ltd., established on July 22, 2010, registered capital of 11 million yuan (paid-in capital). Located approximately 300 meters west of the intersection of Hangzhou Road and Zhujiang Road in Zhongyuan District, Zhengzhou City, it is a sole proprietorship limited liability company registered with the Zhengzhou Zhongyuan District Market Supervision Administration. The company's main business is the development and service of environmental protection technology, encompassing the production, sales, and installation of filtration equipment, water treatment equipment, and air purification equipment. It also sells cleanroom consumables and medical devices. Sun Guobao holds 100% of the shares and serves as the executive director and general manager. The company owns 9 utility model patents and 7 software copyrights. In 2025, it participated in 14 bidding projects, including pure water equipment for medical institutions, and has been certified as a high-tech enterprise and a technology-based SME. It has been rated as an A-level taxpayer for many consecutive years.