Dalian has more than 36,000 industrial enterprises, which include 3,000 large-scale industrial enterprises. Different economic sectors in Dalian currently employ 900,000 workers. Among them, more than 700,000 work in the secondary industry and 250,000 are technical professionals in different fields. In 2008, about 50,000 college and polytechnic school graduates and 60,000 skilled workers and 25,000 other laborers were added to local labor pool. In addition, backed by the three northeast provinces, which have long been key industrial base of China, Dalian has great access to abundant labor resources.