The International Commerce Centre (traditional Chinese: 環球貿易廣場) (abbr. ICC Tower) is a 108 floor, 484 m (1,588 ft) skyscraper completed in 2010 in West Kowloon, Hong Kong. It is a part of the Union Square project built on top of Kowloon Station. The development is owned and jointly developed by MTR Corporation Limited and Sun Hung Kai Properties, Hong Kong's metro operator and largest property developer respectively. It is currently the world's fourth tallest building as well as the tallest building in Hong Kong. Its formal development name is Union Square Phase 7 and the name International Commerce Centre was officially announced in 2005. International Commerce Centre was completed in phases from 2007 to 2010. The tower opened in 2011, with the Ritz-Carlton opening in late March and the observatory in early April. Sun Hung Kai Properties also developed, along with another major Hong Kong developer, Henderson Land, the second-tallest skyscraper in Hong Kong, the 2 International Finance Centre, which is located directly across Victoria Harbour in Central, Hong Kong Island.