Nanning, also known as "Greentown" and "Tancheng", is the capital of Guangxi Zhuang Autonomous Region. Nanning is located in south-central Guangxi, facing Southeast Asia, backed by the southwest of China, bordering Guangdong, Hong Kong and Macao in the east and Beibu Gulf in the south. It is an important node of the Belt and Road Initiative. It is the core city of Guangxi Beibu Gulf Economic Zone, Pearl River-Xijiang Economic Belt and Beibu Gulf Urban Agglomeration, as well as South China Economic Circle, Southwest Economic Circle and China.