Nationality law of the People's Republic of China of the Ninth National People's Congress on December 29, 1998. Unlike the UK, Portugal did not have an overseas nationality, which means that residents of Macau had the same type of Portuguese nationality as those in Portugal. Unique provisions include clarification for individuals of both Chinese and Portuguese descent, who may choose either Chinese or Portuguese nationality without losing right to abode. Negotiations between China and Portugal over Macau were considerably smoother than those between the United Kingdom and China over Hong Kong, and in the former a pragmatic practical agreement was understood making double nationality possible "de facto" for
Nationality law of the People's Republic of China citizenship in another country does not lose Chinese nationality. As Article 3 states that China does not recognize dual citizenship, under Chinese law the foreign nationality is not recognized. For example, in 2006, a Chinese citizen who was not settled in Guinea Bissau, but who acquired Guinea Bissau nationality (under local law) by virtue of an investment migration scheme, attempted to enter China on a Guinea Bissau passport and Chinese visa. Chinese border control confiscated the Guinea Bissau passport, on the basis that the person remained solely a Chinese citizen under Chinese law, and so it was illegal for that