Six months multiple entry visa to China

respected sir\mam
i am running a Travel agency..One of nepali client has the half year mutiple visa which started from June december 30 and the entry before date is 30th june.so he has already finished his one entry to china and he wants to visit Guanzhau in 2nd entry 25th june and he wants to stay there for 2 weeks therefore, has he got the right to stay there for 2 weeks and come back to nepal as the half year multiple visa will expire on 30th june,2011...
hope i will get the feedback soon..

sujan khoju shrestha