The three transitions

The first is security: debate continues over the role of US Forces Korea, wartime operational control and the shape of combined exercises. The second is trade, where tariffs and supply-chain realignment act on both economies at once. The third is technology, where export controls and investment screening in semiconductors, artificial intelligence and batteries have grown denser.

The point analysts stress is that the three tracks run through different agencies on different timetables. Security consultations proceed through defence channels, trade through negotiating teams, technology restrictions through commerce departments — so that what is agreed on one track can be offset on another.

The word 'decoupling'

As used in this discussion, 'decoupling' does not mean Seoul and Washington parting ways. It describes a state in which the three tracks diverge: security cooperation holds, trade terms worsen, and technology cooperation narrows under regulation.

Within the government, calls to strengthen inter-ministerial coordination have been made repeatedly. Others counter that when the counterpart's own policy shifts quickly, coordination alone cannot close the gap.

Where this reaches the Chinese community

Changes in Korea-US trade terms reach ethnic Chinese business owners in Korea indirectly — particularly those supplying firms with heavy US export exposure, or handling raw materials sensitive to tariff swings. Companies that have diversified their sourcing have more cushion.

This paper takes no position on which policy direction is correct. We record only that the diagnosis itself — three tracks moving separately — is offered in common by analysts of varying persuasions.