Hey, just a head's up, I'm in China right now applying for an extension on my 60 day single entry visa and there is a new form that you need to submit, which is a proof of deposit slip from the bank. Basically for the number of days you are staying you need to deposit $100 US in a Chinese bank to prove that you have enough money to live in the country. Then the bank issues you a slip you need to bring to the visa office. This might take a while, so plan accordingly. Good luck!