The China Sea Salt Museum in Yancheng traces the history of salt production along China's eastern coast, from the Han Dynasty saline marshes through the sophisticated imperial salt monopoly system to the modern chemical industry. The exhibits include traditional salt-making equipment, records of the salt merchants who grew wealthy here, and documentation of how the salt trade shaped the region's cities and canal network.
The museum is well-organised and, unusually for a specialist industrial museum, makes its subject genuinely interesting. The salt merchants of Huainan — the salt-producing region centred on Yancheng and nearby cities — were among the wealthiest people in imperial China, and the exhibition explains how their wealth funded the gardens and scholarship that define the cultural identity of Jiangsu to this day.