Donghai is the world-famous Crystal Capital of China. Donghai Hot Spring is known as the “No.1 Hot Spring in East China”. It is rich in silicon mineral resources, with crystal reserves of 300,000 tons and quartz reserves of 300 million tons. Donghai International Crystal Jewelry City is the largest crystal trading market in the country. In recent years, Donghai has been approved to build a national Torch Program silicon industrial base and a state-level high-tech new material industrial base. It has obtained titles including a state-level ecological demonstration zone and a pilot county of national smart city. It is one of the Top 100 counties of China.