Erhai Langhe Tea Industry Co., Ltd.'s tea factory is located in Erhai County, called Erhai County Langhe Tea Factory. It was founded in 1995. The new factory in Erhai Industrial Park was also put into use in 2008, with more than 500 employees, accounting for The land area is nearly 150,000 square meters, and the annual productivity is 8,000 tons. Since the establishment of the factory, the tea factory has hired domestic experienced tea makers to draw on the experience of Guangdong and other places, give full play to the unique tea-making process and fermentation technology of Ouhai, select the best raw materials in Ouhai tea area, and focus on tradition in production. The organic combination of processing technology and modern technology has successfully shaped the "Langhe" series of high-quality brands in the market.