Relationship dossier
People's Republic of China
South Korea
Relationship assessment
Substantial economic ties coexist with persistent security tensions, particularly over THAAD and regional alignments.
People's Republic of China toward South Korea
-10China has pursued diplomatic and economic cooperation with South Korea, including through the bilateral free trade agreement. It strongly opposed South Korea’s deployment of the U.S. THAAD missile-defense system and imposed or tolerated economic and cultural restrictions that affected South Korean interests.
South Korea toward People's Republic of China
+5South Korea has maintained diplomatic and economic engagement with China, including through the bilateral free trade agreement and strategic partnership framework. It nevertheless deployed the U.S. THAAD missile-defense system despite China’s objections, prioritizing its security concerns about North Korea.
Overall relationship
0The relationship is anchored by extensive economic exchange, a bilateral free trade agreement, and sustained diplomatic engagement. Those cooperative foundations are counterbalanced by China’s opposition to South Korea’s THAAD deployment, the resulting economic pressure, and broader disagreements involving North Korea and regional security. The combination supports a mixed assessment rather than a close partnership or sustained adversarial relationship.
How to read these scores
Scores are rough judgments, not objective measurements or current verification. Directional scores describe government policy and conduct, not public opinion. The overall score is an independent estimate, never an average.
- −100
- Extreme sustained hostility
- −50
- Substantially adversarial
- 0
- Mixed or neutral, supported by knowledge
- +50
- Substantially cooperative
- +100
- Exceptionally close sustained partnership
“Not assessed” means there is no recorded score. Pair existence makes no claim about diplomatic recognition or established relations.
Relationship context
Overview
China and South Korea maintain substantial economic and diplomatic cooperation, including a bilateral free trade agreement and a strategic partnership framework. Relations have also faced serious friction over South Korea’s deployment of the U.S. THAAD missile-defense system, which China opposed and followed with economic pressure. Close economic links coexist with unresolved security and regional disagreements.
Areas of tension
- China’s opposition to South Korea’s THAAD deployment and the resulting economic and cultural pressure.
- Differences over regional security and South Korea’s alliance with the United States.
- Different approaches to North Korea and its security challenges.
Key developments
China and South Korea established diplomatic relations.
The China–South Korea Free Trade Agreement entered into force.
South Korea and the United States announced the decision to deploy a THAAD missile-defense system in South Korea, drawing strong opposition from China.
Major uncertainties
- The extent and lasting effects of China’s informal economic restrictions following the THAAD deployment remain unclear.
- The scope of current security cooperation and the implementation of bilateral commitments are unclear.