Guangzhou, also known as Canton or Kwangchow, is a sub-provincial city and the capital of the Guangdong province in the People's Republic of China. It is one of the five National Central Cities. Located in southern China on the Pearl River, about 120 km (75 mi) northwest of Hong Kong, Guangzhou is a key transportation hub and trading port. Guangzhou is the third largest city in China and southern China's largest city. As of the 2000 census, the city had a population of 6 million, and an urban area population of roughly 11.85 million, making it the most populous city in the province and the third most populous metropolitan area in China. The Guangzhou government's official estimate of the city's population at the end of 2009 was 10,334,500, an addition of 152,500 people from the previous year.
Guangzhou is the main manufacturing hub of the Pearl River Delta, one of mainland China's leading commercial and manufacturing regions. In 2009, the GDP reached ¥911.28 billion (US $133.5 billion), per capita was ¥89,498 (US $13,111).
The China Import and Export Fair, also called "Canton Fair", is held every year in April and October by Ministry of Trading. Inaugurated in the spring of 1957, the Fair is a major event for the city. From the 104th session, Liuhua Complex is not in use to hold Canton Fair. All the booths have been transferred to Pazhou Complex. From the 104th session, Canton Fair has been arranged in 3 phases instead of 2 phases.