The signings at the Pan-Pearl River Delta Region Economic & Trade Fair included government contracts and deals between enterprises in areas such as railway construction, environmental protection and tourism. The Pan-Pearl River Delta region is known as '9+2'. It covers the Guangdong, Hainan, Yunnan, Guizhou, Sichuan, Hunan, Jiangxi and Fujian provinces, the Guangxi Zhuang Autonomous Region and the special administrative regions of Hong Kong and Macao.