Thailand – Citizenship

Acquiring Thai citizenship is possible through naturalisation after five years of holding permanent residency, through descent from a Thai parent, or through marriage to a Thai national. The pathway is rigorous, with demanding requirements around income, language ability, and personal

Taiwan – Citizenship

Taiwan (officially the Republic of China, or ROC) grants citizenship primarily through naturalisation following a qualifying period of residency, through descent from a Taiwanese parent, or via marriage to a Taiwanese national. For the majority of foreign applicants, naturalisation demands

Switzerland – Citizenship

Swiss citizenship can be acquired through ordinary naturalisation (which demands at least 10 years of lawful residence and a permanent C permit), facilitated naturalisation (open to spouses of Swiss nationals and certain other groups), citizenship by descent, and reinstatement for

Sweden – Citizenship

Swedish citizenship is most commonly acquired through naturalisation following five years of continuous residence (though shorter periods apply in some circumstances), by descent from a Swedish parent, or through a partner route requiring three years of residence. Since 2001, Sweden

Spain – Citizenship

Spanish citizenship (nacionalidad española) is most commonly acquired through naturalisation following a qualifying period of legal residence — generally 10 years, though this is reduced to as little as 1–2 years for particular categories of applicant. Additional pathways exist through

South Korea – Citizenship

Acquiring South Korean citizenship is primarily achieved through naturalisation, which demands a minimum of five years of uninterrupted lawful residence — a requirement that can be shortened to two or three years in specific circumstances, such as for those married

South Africa – Citizenship

South African citizenship is available through birth, descent, or naturalisation. The majority of foreign nationals become eligible for naturalisation after holding permanent residence for five years. South Africa recognises dual citizenship, and a landmark Constitutional Court ruling in May 2025

Slovakia – Citizenship

Slovak citizenship can be obtained through naturalisation following eight years of uninterrupted permanent residence, through ancestry tracing back to Czechoslovak forebears born in what is now Slovakia, or through marriage to a Slovak national after five years of shared residence

Singapore – Citizenship

Singapore citizenship can be acquired through naturalisation (most commonly via Permanent Residency), by descent, or through family connections. The standard pathway requires holding PR status for a minimum of two years before lodging an application, with the Immigration and Checkpoints

Saudi Arabia – Citizenship

Acquiring Saudi citizenship ranks among the most challenging processes in the Gulf region. The main pathways are citizenship through bloodline (via a Saudi father), through marriage (for foreign women wed to Saudi nationals), through naturalisation following a minimum of ten