The Congo Free State was a corporate state privately controlled by Léopold II, King of the Belgians through a dummy non-governmental organization, the Association Internationale Africaine. Léopold was the sole shareholder and chairman. The state included the entire area of the present Democratic Republic of the Congo and existed from 1885 to 1908, when it was annexed by the government of Belgium. Initially, the occupation and exploration of the immense territory of the Congo Free State proved a heavy burden on the monarch's purse. Twice, state bankruptcy was avoided by the Belgian state granting Léopold II emergency loans. In the 1890s, the tide turned dramatically. Through the forced exploitation of rubber, copper, and other minerals in the upper Lualaba River basin, together with the global rubber boom, huge surpluses were generated. Léopold II used part of this new wealth for the embellishment of his native country: the Royal Galleries in Ostend, the Palace of the Colonies in Tervuren, or the triumphal arch in Brussels were funded from the profits generated by the Congo. It soon became clear that these profits were generated on the back of brutal mistreatment of the local people and plunder of the Congo's natural resources.