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 and the British Citizenship held by Chinese Hong Kong residents under the British Nationality Selection Scheme (British Nationality (Hong Kong) Act 1990). Furthermore, Hong Kong Chinese nationals who hold such passport or have a right of abode in countries outside the People's Republic of China are not entitled to British (or any other nation's) consular protection inside the People's Republic of China (including Hong Kong, Macau and mainland China), owing to Article 3 of the Nationality Law and the Master Nationality Rule. Such persons are also "not" allowed to renounce their Chinese nationality by renunciation (unless holding another foreign nationality),