None of them belong. Shenzhen does not belong to western Guangdong, nor does it belong to eastern Guangdong. Shenzhen, Guangzhou, Dongguan, Foshan and Zhongshan all belong to the Pearl River Delta in central Guangdong. Shenzhen, referred to as Pengcheng for short, is a sub-provincial city, a city with separate plans, a megacity in Guangdong Province, a China Special Economic Zone approved by the State Council, a national economic center city and an international city.