A World Trade Center (also World Trade Centre or WTC) is a building or complex of buildings established and effectively operated by the World Trade Centers Association (WTCA) as an instrument for trade expansion. The WTCA represents 317 members in 91 countries. Founded in 1970, it is an unofficial umbrella trade association that unites corporations and government agencies in international trade. A World Trade Center puts all the services associated with global commerce under one roof to foster networking processes among corporations and governments. WTCA President Guy F. Tozzoli describes a World Trade Center as "a business shopping center, complementing and supporting the existing services of private and government agencies."
The current 7 World Trade Center in New York City
Beurs-World Trade Center in Rotterdam, Netherlands
World Trade Center (Tokyo) in Tokyo, Japan
Denver World Trade Center in Denver, Colorado, United States
Torre Futura World Trade Center in San Salvador, El Salvador
World Trade Center in Barcelona, Spain, European Union
The World Trade Center in New York as it appeared before it was destroyed (see September 11 attacks)
The Osaka Prefectural Government Sakishima Building in Japan
World Trade Center Taichung in Taichung, Taiwan