Guangzhou (Chinese: 广州, known historically as Canton and nicknamed the City of Flowers), is the capital and largest city of Guangdong province in South China. Guangzhou is one of the major birthplaces of China's ancient "maritime Silk Road". Located in the north of the Pearl River Delta, about 120 km (75 mi) north-northwest of Hong Kong and 145 km (90 mi) north of Macau, Guangzhou serves as an important national transportation hub and trading port. One of the five National Central Cities, it holds sub-provincial administrative status.
Guangzhou is an important industrial trade port, it has an area of 7434 square kilometers, till the end of 2015, the permanent residents population of Guangzhou is 13.5011million, it is the third largest Chinese city, after Beijing and Shanghai and it is also one of the most populous metropolitan agglomerations on earth.
Guangdong Province now has become the world's factory, the Chinese market is considered as one of the largest commodity export markets in the world. Guangzhou plays an very important role in economy and trading fields, it is called the center of Chinese industry and commerce. In Guangzhou,there has countless factories, emporiums and international exhibitions; Among them, Canton Fair owns the largest trading volume in domestic exhibitons, it is also one of the biggest and most important industrial products fairs in the world, most Chinese factories’ products concentrate in this exhibition.The Canton Fair is held twice a year, in April and October of each year. Each session is divided into three phases. Each phase will be held for five days and has different range of exhibition. From 2013 to 2015, Forbes has ranked Guangzhou first among the top 100 best commercial cities on the Chinese mainland for three consecutive years.
The climate of Guangzhou is sub-tropical. The average year-round temperature is 22°. August is the hottest month, with an average temperature of 28°. January is the coldest month, with an average of 13°. The rainy season falls between April and August.