South Korea and Indonesia are jointly developing the KF-21 fighter jet, but controversy has arisen as Indonesia delays its contribution payments. Indonesia has requested a reduction in its share citing financial difficulties, and the government has proposed an adjustment lowering Indonesia's contribution to 600 billion won. However, KAI is facing challenges as it must bear an additional 120 billion won in development costs despite cost-reduction efforts throughout the project. The government and KAI plan to finalize the cost-sharing ratio through negotiations with Indonesia.
