Yes, foreign workers can obtain permanent residency (F-5 Visa) in South Korea after meeting specific criteria. Skilled workers on visas such as E-7 or E-7-4 may become eligible after maintaining stable employment, earning a qualifying income, and demonstrating Korean language proficiency (TOPIK Level 3 or higher). Some categories allow residency after three to five years of continuous stay. Candidates must also show financial stability, a clean criminal record, and successful integration into Korean society. Permanent residency provides long-term stability, allowing foreign nationals to work freely without employer sponsorship.