Chinese nationality
Chinese nationality can be relinquished by making a declaration of renunciation. It is also automatically revoked when persons from mainland China who reside abroad voluntarily acquire a foreign nationality. Hong Kong and Macau residents who become foreign citizens continue to be Chinese nationals unless they make an explicit declaration of nationality change to their territorial immigration authorities. Macanese residents with mixed Chinese-Portuguese ancestry are specifically given a choice between Chinese and Portuguese nationalities. On submitting a formal declaration to select Portuguese nationality, these individuals would lose Chinese nationality. Former Chinese nationals may subsequently apply for nationality restoration, subject to discretionary approval. Similar to naturalizing candidates, successful applicants must renounce their foreign nationalities.