Dear Chinese Embassy in Thailand

I have a double-entry VISA on my UK passport and have only one entry left. I will be travelling to Shanghai on 30th March which would use up my remaining last VISA entry into China. I am then travelling to Thailand in April 3rd until April 18th before flying back to Shanghai. Will I be able to apply for another China VISA whilst in Thailand so that I can get back to Shanghai after my travel in Thailand?

Many thanks for your time and help.

Oliver