The Blue House serves as a key institution supporting overall state administration and coordinating national policy direction. It supports the President in carrying out state affairs, manages major issues comprehensively, and facilitates policy implementation through collaboration with each ministry.

The Supreme Court is the highest judicial body and is responsible for final legal decisions. It establishes legal standards for lower courts and upholds consistency and reliability across the judicial system.

The Ministry of Food and Drug Safety is a specialized government agency responsible for food and pharmaceutical safety management. It establishes safety standards closely related to public well-being and continuously oversees safety through distribution and management systems.

The Prosecutors' Office is a judicial body responsible for criminal investigations and prosecutions. It operates an investigative system that supports legal order and contributes to social stability through fair law enforcement.

The Ministry of National Defense is the administrative body responsible for national security and defense policy. It oversees military operations and defense planning while supporting the foundation of a stable national security system.

The Ministry of the Interior and Safety is the central government agency responsible for government operations and administrative systems. It oversees disaster and safety management as well as local administration, supporting the stable operation of public administration.

The Ministry of Justice is the central government agency responsible for the legal system and judicial administration. It oversees criminal justice, immigration, correctional services, and related administrative functions, providing the institutional framework for legal order.

The Customs Office is the specialized agency responsible for import and export customs clearance and customs administration. It manages logistics and customs procedures at the border and operates systems that support orderly trade.

The National Tax Service is the agency responsible for the assessment and collection of national taxes. It supports the fiscal foundation of the state through the fair administration of the tax system while promoting an improved taxpayer environment and efficient tax operations.

The Disease Control and Prevention Agency is a specialized organization responsible for infectious disease prevention and public health management. It operates surveillance and response systems to protect public health and support crisis response.

The Ministry of Foreign Affairs is the principal agency responsible for foreign relations and diplomatic policy. It manages a wide range of diplomatic matters through international cooperation and exchange while ensuring policy consistency and coordination.

Statistics Korea is the specialized agency responsible for the production, management, and analysis of national statistics. It establishes statistical standards that support policymaking and decision-making and operates a system grounded in accuracy and reliability.

The Intellectual Property Office is the specialized agency responsible for the administration and examination of intellectual property rights. It provides the institutional basis for protecting industrial activity and technological innovation while maintaining system credibility through fair review standards.

The Constitutional Court is the judicial body responsible for constitutional interpretation and reviewing the constitutionality of laws and actions. It serves as the final authority for upholding constitutional order through an independent and impartial judicial process.

The Aerospace Administration is the specialized agency overseeing policy and related projects in the space and aviation sectors. It supports research and industry activities systematically while leading mid- to long-term strategy and policy coordination.

The Ministry of Land, Infrastructure and Transport is the administrative agency responsible for land use, infrastructure, and transportation policy. It oversees systems related to cities, housing, and mobility while promoting stable administration through policy coordination.

The National Intelligence Service is responsible for collecting and analyzing information related to national security. It identifies key threats in response to domestic and international developments and provides information support necessary for policy decision-making.

The Republic of Korea Air Force is the military branch responsible for national defense through air power. It operates and strengthens air capabilities while advancing defense readiness through modern force systems.

The Ministry of Climate, Energy and Environment is an integrated ministry responsible for climate, energy, and environmental policy. It establishes sustainable policy direction, builds institutional frameworks, and operates implementation systems that respond to environmental change.

The Defense Acquisition Program Administration oversees project planning and procurement to strengthen national defense capabilities. It systematically manages the acquisition of weapons systems and the expansion of military capacity while supporting the efficient operation of the defense sector.

The Ministry of Culture is the central government agency responsible for planning and implementing cultural policy. It supports the content industry and the broader cultural environment, helping establish a foundation that balances cultural creation and public enjoyment.

The Presidential Archives systematically manages records generated in the course of national administration. It is responsible for preserving and utilizing key records while supporting administrative continuity and accountability.

The Ministry of Athletics is responsible for sports policy and the broader sports sector. It supports both athlete development and recreational sports while operating systems that promote a healthy sports environment.

The Bank of Korea is the central financial institution responsible for monetary policy and financial stability. It manages price stability and the balance of the financial system, supporting the stable operation of the national economy.

The National Election Commission oversees the fair administration of elections and voting systems. It operates the election management framework systematically and supports democratic processes built on public trust.

The Forestry Agency is the specialized organization responsible for forest resource protection and management policy. It promotes a balance between conservation and utilization while supporting both environmental preservation and forest policy implementation.

The Maritime Police is the specialized agency responsible for maintaining maritime safety and order. It conducts maritime security and rescue operations while operating systems for marine environmental protection and safety management.

The Republic of Korea Army Headquarters is the military command organization responsible for defense operations based on land forces. It oversees unit operations and command systems while maintaining defense readiness through strengthened operational capability.

The Ministry of Tourism is responsible for planning and operating tourism policy and the broader tourism industry. It supports the development of the tourism environment and content while laying the foundation for stronger industry competitiveness.

The Ministry of Patriots and Veterans Affairs is the administrative agency responsible for veterans policy and related public support systems. It operates programs for veterans support and recognition while helping foster a culture of public respect.

The Financial Supervisory Commission oversees the operation of financial supervision policies and regulatory systems. It manages the soundness and transparency of financial markets while supporting a stable financial environment.

The Ministry of Oceans and Fisheries is the central government agency responsible for maritime and fisheries policy. It supports the development of the marine industry, fisheries resource management, marine environmental protection, and the strengthening of the industrial base.

The Ministry of Strategy and Finance is responsible for fiscal policy and overall economic management. It supports policy implementation through budget and fiscal management and coordinates the direction of national economic policy.

The Ministry of Agriculture, Food and Rural Affairs is the central government agency responsible for agriculture, livestock, and food policy. It supports industrial competitiveness, stable production foundations, and sustainable development across the agriculture and food sectors.

The Rural Development Administration is the specialized agency responsible for agricultural technology research and field implementation. It promotes productivity improvement through research and supports stronger agricultural competitiveness through practical application.

The Corruption Investigation Office for High-ranking Officials is an agency specializing in the investigation of crimes involving senior public officials. It operates an independent investigative system and works to strengthen transparency and accountability in the public sector.

The Ministry of SMEs and Startups is responsible for policies related to small and medium-sized enterprises, startups, and venture businesses. It operates support systems tailored to each stage of growth and helps create an environment for sustained innovation and business development.

The Anti-Corruption & Civil Rights Commission is responsible for corruption prevention and the improvement of the public complaint system. It enhances administrative fairness through institutional improvement and policy coordination aimed at resolving public inconvenience.

The Ministry of Unification is responsible for inter-Korean relations policy and exchange and cooperation initiatives. It promotes policies aimed at peace on the Korean Peninsula and supports a long-term foundation for exchange and cooperation.