Shenzhen is a major city in the south of China. ; Southern Guangdong Province, adjacent to northern Hong Kong. The region became China amp This is the first-and the most successful-special economic zone in the United States … Shenzhen is a major city in the south of China. ; In the south of Guangdong Province, this area becomes China amp This is the first-and one of the most economical regions in America. At present, it has provincial status and power. Before that, it was a small village. Both China and foreigners have invested heavily in Shenzhen. It is said that Shenzhen is now regarded as one of the fastest growing cities in the world.