fiatleak get info from: BITSTAMP, BTCChina, BTC-E, Bit2c, Mercado Bitcoin BR, Local Bitcoins, OKCoin, BTCTrade, Huobi China, bitx.co.za, Cavirtex

As you see no only chinese sites, and it does not follow sales, just buys

Curiosly the second mentioned, many new chinese exchanges coming up...  it is outlaw in that country