Deadly Blast Exposes Fragile Single-Supplier Weakness in South Korea's Missile Supply Chain

A June 1, 2026 explosion at Hanwha Aerospace's Daejeon missile plant killed five workers and injured two, suspending production of key systems like the Chunmoo rocket launcher, L-SAM missile, and Cheongeom guided missile. The incident has highlighted a critical vulnerability in South Korea's booming arms export industry: many missile components are produced by only one qualified domestic supplier due to proprietary technology and lengthy qualification processes. Defense officials and industry sources told The Korea Times that the single-supplier structure, a legacy of a smaller domestic market, poses a systemic risk as export orders surge, partly driven by the Ukraine war. Hanwha is racing to expand capacity and build redundancy, including a proposed automated propellant plant in the US, but the accident underscores the fragility of the current supply chain.