The largest saltworks in China is Haiyang saltworks. Haiyang saltworks, founded in the Tang Dynasty, is one of the earliest saltworks in China. The salt produced by this saltworks is of good quality and complete variety, which is widely favored by consumers at home and abroad. In addition, Haiyang Salt Field also promoted salt culture through tourism and cultural activities, which made important contributions to the inheritance and development of salt culture in China. The sixth saltworks is Yangjiang saltworks in Guangdong Province, which was built in Qianlong period of Qing Dynasty and has a history of more than 300 years. This saltworks is famous for its high-quality salt products and modern management mode. At the same time, Yangjiang Saltworks also actively participated in social welfare undertakings and made positive contributions to local economic and social development. The seventh saltworks is Yueyang saltworks in Hunan Province, which was built in the Tang Dynasty and has a history of 1300 years. This saltworks is famous for its rich salt resources and superb salt-making technology. At the same time, Yueyang Salt Field also carried out a number of salt culture promotion activities, which made important contributions to promoting the inheritance and development of salt culture in China. The eighth saltworks is Tianjin Luchang Tanggu saltworks, which is one of the key enterprises of large-scale sea salt production in China. The "Haijing brand" industrial salt produced by this saltworks is well-known, with an annual output of over 2 million tons.