Beijing Airport was opened on 1 March 1958. The airport then consisted of one small terminal building, which still stands to this day, apparently for the use of VIPs and charter flights, along with a single 2,500-meter (8,200 ft) runway on its eastern side, which was extended to 3,200 meters (10,500 ft) in 1966 and 3,800 meters (12,500 ft) in 1982 respectively. In 2013, Beijing Capital International Airport handled 83.7 million passengers, making it the second busiest airport in the world that year. Prior to 2003, it had not ranked among the world’s 20 busiest airports. In late 1999, to mark the 50th anniversary of the founding of the PRC, the airport underwent a new round of expansion. Terminal 2 opened on 1 November of that year and Terminal 1 was temporarily closed for renovation. 20 September 2004 saw the opening of the renovated Terminal 1 which, at that time, only handled China Southern Airlines' domestic and international flights from Beijing. Other airlines' domestic and international flights still operated in Terminal 2. More expansion began in 2007. A third runway opened on 29 October 2007, to relieve congestion on the other two runways. Terminal 3 (T3) was completed in February 2008, in time for the 2008 Beijing Summer Olympics. The significant expansion included a rail link to the city center. At the time of its opening, Terminal 3 was the largest airport passenger terminal building in the world by floor area. The expansion was largely funded by a 30 billion yen loan from Japan and a 500-million-euro (US$625 million) loan from the European Investment Bank (EIB). The loan was the largest ever granted by the EIB in Asia, and the agreement was signed during the eighth China-EU Summit held in September 2005. Following the 2008 Summer Olympics and the addition of adding the new terminal building, Beijing Capital overtook Tokyo Haneda as the busiest airport in Asia based on scheduled seat capacity. Due to limited capacity of Beijing Capital International Airport, plans were announced for the construction of a new airport at Daxing. The project was given final approval on 13 January 2013. Construction began in late 2014 and was completed in 2019. The new Daxing Airport became the Beijing home of China Eastern Airlines, China Southern Airlines, and China United Airlines, while Air China and Hainan Airlines remained at Capital.