Changsha Baozhi Nuan Insulation Materials Co., Ltd. Currently operates three major production bases in Changsha, Wuhan, and Jiangxi Province. It is one of the largest and most influential suppliers of insulation materials south of the Yangtze River in China. The company's headquarters is located in Zhentou Environmental Protection Industrial Park, Liuyang City, covering an area of 60 mu. In 2015, it was the first to introduce the world's most advanced CO2 foaming XPS extruded polystyrene board production line. Currently, it operates a total of 5 state-of-the-art XPS extruded polystyrene boards and 12 composite board production lines, producing 500, 000 cubic meters of high-end, eco-friendly, and flame-retardant XPS extruded polystyrene per year. The annual output value of EPS polystyrene boards is 200, 000 square meters. The annual output value of rock wool composite boards is 1.44 million square meters. The company specializes in producing integrated insulation and decoration panels, thermosetting polystyrene insulation panels, various types of soundproofing and other innovative materials.