Currency swap bank liquidity swaps. South Korea and Indonesia signed a won-rupiah currency swap deal worth US$10 billion in October, 2013. The two nations can exchange up to 10.7 trillion won or 115 trillion rupiah for three years. The three-year currency swap could be renewed if both sides agree at the time of expiration. It is anticipated to promote bilateral trade and strengthen financial cooperation for the economic development of the two countries. The arrangement also ensures the settlement of trade in local currency between the two countries even in times of financial stress to support regional financial stability. As of 2013,
National symbols of Indonesia and hoisted in public at the Indonesian Independence Day ceremony, on 17 August 1945. The design of the flag has remained the same ever since. Indonesia Raya is the national anthem of the Republic of Indonesia. The song was introduced by its composer, Wage Rudolf Supratman, on 28 October 1928 during the Second Indonesian Youth Congress in Batavia. The song marked the birth of the all-archipelago nationalist movement in Indonesia that supported the idea of one single "Indonesia" as successor to the Dutch East Indies, rather than split into several colonies. Indonesian language () is the official language of Indonesia.