Hong, 32, who studied chemical engineering, said another reason for his return is that the conditions for starting a business in China have improved since he left the country for school.
Hong said the size of the subsidy and a simplified registration procedure for a company will be factors when he decides where to be.
Lin Bo, who works at a research institute in Singapore, wants to start his own company in China. He and three colleagues own a patent for a smart security system.
Lin studies optical fiber communication and received his PhD from Nanyang Technological University in Singapore. "Many overseas Chinese who have a good patent or acquire unique technology would like to come back to China because there are many more opportunities," he said.
Cumquat market in S China's Guangxi