Urgent business trip to china one from us one from Ausralia early next week for 5days Shanghai

I am American need to fly to PRC Shanghai for 3/5 days next week for contract negotiations, I am also flying a client from Australia to Shanghai as well. We can get invite from seller, but no time for prearranged visa. Can we get on arrival. Several years ago I had urgent business and received it on arrrval at air port. What can you recommend. Travel must be week of the 13th. Thank you