Chinese Americans, also known as the American Chinese, are Americans who have full or partial Chinese ancestry. Chinese Americans constitute one group of overseas Chinese and also a subgroup of East Asian Americans, which is further a subgroup of Asian Americans. Many Chinese Americans are immigrants along with their descendants from mainland China, Hong Kong, Macau, Taiwan, as well as from other countries that include large populations of the Chinese diaspora. The vast majority of Chinese Americans are Han, however there are some communities of minority groups such as Tibetans and Korean Chinese.