South Korea & Indonesia: Fighter Jet Deal & Economic Ties Strengthen
Seoul, South Korea – Indonesia is nearing a deal to purchase additional KF-21 Boramae fighter jets from South Korea, as both nations deepen strategic and economic ties amid shifting geopolitical currents. The potential agreement comes as Indonesian President Prabowo Subianto prepares for a state visit to South Korea in April, according to government sources.
The prospective sale of the domestically developed KF-21, a supersonic fighter, represents a key element in the bilateral relationship. Seoul views closer cooperation with Jakarta as strategically vital, particularly given Indonesia’s position as the largest economy and most populous nation within the Association of Southeast Asian Nations (ASEAN). Indonesia also holds significant importance as a major production and investment hub for South Korean companies, and crucially, as the world’s leading supplier of nickel – a mineral increasingly critical for electric vehicle battery production and a focal point of competition between the United States and China.
The timing of this potential deal is also significant. South Korea is actively pursuing “summit diplomacy” with countries in the Global South, including those in South America and ASEAN, as a means of diversifying its supply chains in the face of escalating U.S.-led protectionist policies and ongoing trade tensions between the U.S. And China. This push for broader international partnerships reflects a broader effort to reduce reliance on traditional economic powers.
The path to a finalized agreement hasn’t been without its complexities. An initial understanding for Indonesia to acquire 48 KF-21 jets, to be delivered in batches of 16, was complicated by Jakarta’s subsequent decisions to explore alternative fighter jet options, including France’s Dassault Rafale and Turkey’s TAI Kaan. Indonesia, a partner in the KF-21’s joint development program, had initially committed to contributing 1.6 trillion won to the project but later reduced its financial commitment to 600 billion won, seeking a corresponding reduction in technology transfer as part of the revised agreement.
The current state of negotiations suggests progress is being made towards resolving these earlier concerns. While details remain confidential, officials indicate that both Seoul and Jakarta are actively coordinating the specifics of President Subianto’s April visit, which will likely include further discussions on the fighter jet contract. Previous attempts to schedule a visit – initially planned following China’s Victory Day military parade in September and again in December – were postponed due to intensifying anti-government protests in Indonesia.
Beyond the defense sector, South Korea is keen to expand economic cooperation with Indonesia, particularly in areas related to the electric vehicle battery supply chain. Indonesia’s strategy of restricting raw ore exports and promoting domestic processing industries has positioned the nation as a key player in this rapidly evolving market. This aligns with South Korea’s efforts to secure stable supplies of critical minerals necessary for its growing EV industry.
The focus on strengthening ties with Indonesia is part of a broader pattern of South Korean diplomatic activity. , Presidential Chief of Staff Kang Hoon-sik departed for the United Arab Emirates to discuss follow-up measures from a bilateral summit held in November of last year. These discussions are expected to encompass expanded cooperation in the defense industry, artificial intelligence, and nuclear energy, demonstrating South Korea’s commitment to diversifying its strategic partnerships across multiple regions.
The anticipated visit by President Subianto follows a recent state visit to Indonesia by Brazilian President Luiz Inácio Lula da Silva in October 2025. President Lula also visited Malaysia during that trip, aiming to boost Brazilian exports and strengthen political ties within Southeast Asia. This increased engagement from both Brazil and South Korea underscores the growing importance of the region as a key economic and strategic partner for major global players.
The evolving dynamics in the Indo-Pacific region, coupled with global economic uncertainties, are driving a renewed emphasis on bilateral and regional cooperation. South Korea’s efforts to deepen its relationship with Indonesia, through both defense and economic initiatives, reflect a proactive approach to navigating these challenges and securing its long-term interests.