Documents for a Business Visa

I am a British passport holder working in Thailand. I have a Thai work permit and need to make two business trips to china in the coming weeks for projects that are purchasing Chinese equipment. I have been told that under new Chinese Embassy rules I have to provide details of my personal bank account including the balance even though it is a company sponsored visit. Is this correct or has there been a misunderstanding by the agent presenting my application?
Also why are visas restricted to two entries. Is it not possible to get a six month multi-entry visa as was the case three years ago.