$100.00 here too in SZ, GZ, and Shaoguan. My last trip I only took $500.00 cast and then went to the Bank of China to take out 2500RMB at a time with my debit card. It cost me $1.25US for each transaction and the exchange was 6.87. It kept things simple. One day I took out 10,000RMB with no problems. But I would avoid China Construction Bank. I had nothing but problems with them when using my debit card.