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 nationality by officials in all three constituencies (see "Taiwan" below). The cost for naturalization differs between the three regions: in Mainland China, the application cost is 50 CNY and the certificate of nationality costs 200 CNY. In Hong Kong, the total cost is HK$3,460, composing of an initial application fee of HK$1,730 and the remaining fee of HK$1,730 (the remaining fee is only payable after a successful naturalization along with the presentation of any certificates of the loss of the foreign nationality). In Macau, the cost for application is MOP 1,000 for the main applicant and MOP 500 per family