South Korea and Japan have opened a formal economic security dialogue covering semiconductor supply chains and AI cooperation, giving two of the world's most important chipmaking nations a direct bilateral channel rather than relying solely on multilateral trade bodies to coordinate policy. The talks are aimed squarely at supply-chain resilience: both governments want to reduce how exposed their chip industries are to disruption from any single supplier, material source or geopolitical flashpoint.
The timing is not incidental. Global AI chip demand has been straining manufacturing capacity across the industry for over a year, and Seoul and Tokyo between them control an outsized share of the world's advanced memory production and chipmaking equipment supply. South Korea's SK Hynix and Samsung dominate high-bandwidth memory manufacturing, while Japan supplies much of the specialised chemicals, materials and lithography-adjacent equipment the entire industry depends on — meaning a disruption to either country's output has ripple effects far beyond its own borders.
The dialogue also gives both governments a forum to address a question markets have been asking with rising urgency: whether current levels of capital investment across the chip industry are sustainable if AI spending growth eventually slows. By formalising the channel now, while investment is still accelerating, Seoul and Tokyo are positioning themselves to coordinate a response together rather than reacting independently if that demand curve bends.
