Nationality law of the People's Republic of China East Asian nationals of Chinese ethnicity are not Chinese nationals (although some may qualify for nationality of Taiwan) through their Chinese grandparents. British National (Overseas), a status currently held by many Hong Kong residents, is considered a type of British nationality by countries other than China, nearly 3.4 million Hong Kong residents were registered as BN(O)s before the handover of Hong Kong. Most of those people also have Chinese nationality, making them one of the largest group of dual nationals in the world. Portugal has never created an various classes of nationals nor has Portugal revoked Portuguese citizenship from Portuguese
Nationality law of the People's Republic of China breaching, the basic principle of Chinese Nationality Law on non-recognition of dual nationality, and also because China regards foreign control of Hong Kong as illegitimate, thus refuses to recognize the British nationality bestowed on ethnic-Chinese people who were born or naturalized in Hong Kong. Legally speaking, Hong Kong residents with Chinese nationality do not lose their Chinese nationality automatically upon acquiring foreign one(s), because Hong Kong itself is not recognized as a foreign territory whether before or after 1 July 1997, and automatic loss of Chinese citizenship requires settlement in a foreign country. Persons with BN(O) or British Citizenship acquired