BTC China
Bit currency China is a fixed-rate exchange where bitcoins can be bought and sold.
The exchange rates for Renminbi are based on the current BTC/USD market rate from MtGox.
The only currency traded for bitcoins by this service is CNY (Chinese Yuan).
History
The service was first seen in June, 2011. The about page shows the exchange as being based on Beijing. Trades for the exchange are reported on Bitcoin Charts.