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 China and another country for residents of Mainland China, due to the provisions for loss of Chinese nationality in Article 9 (see "Loss of nationality" above), and the stipulation that a foreigner who naturalizes in China cannot retain their foreign nationality (see "Naturalization" above), the number of dual nationals have, nevertheless, increased in recent years. This is mainly because birth tourism has become popular among Chinese nationals residing in Mainland China, who travel to countries observing "jus soli" to ensure their offspring acquires the birth country's nationality. If a person concurrently holds "de jure" Chinese nationality and foreign nationality or