The public banner is an image or symbol of a nation, and consequently it addresses a country. On this subject there are the Flags of Asia of every sovereign country, except for Tibet, which is authoritatively the Tibet Independent District and part of PR China. Macau and Hong Kong are extraordinary authoritative districts (SAR) of Individuals' Republic of China (PRC). Taiwan, authoritatively the Republic of China (ROC) , oversees the island of Taiwan. PR China thinks about Taiwan authoritatively as one of its regions.