A 5 day VOA in Shenzhen for an Australian citizen, can he fly to Qingdoa on urgent business

I have a staff member in Australia (Australian Citizen Mr David Smith ) with urgent request from two Chinese companies to inspect equipment items to be manufactured in Qingdao and Guangzhou late next week, Can i get a VOA at Shenzhen border travel to Guangzhou, fly to Qingdao 2 days and fly back Guangzhou and depart Shenzhen within the 5 days?