As a characteristic market of Yinchuan, Tongxin Market provides a trade occasion for many Hui people. The customers are the Hui people buying meat, fruits and vegetables, and the vendors are also Hui people. Take mutton market as an example. Mutton is usually more expensive than beef, and pork is the cheapest one. Ningxia is rich in Fat choy (Nostoc flagelliforme )and Tongxin Market is famous for selling high quality Fat choy in low price. Therefore, the wholesalers from Yinchuan and other parts of the country buy Fat choy in this market and sell it all around China.