Chinese President Xi Jinping on Thursday pushed President Moon Jae-in again to "remove" a a Terminal High-Altitude Area Defense battery the U.S. recently stationed in southern Korea.

Xi met Moon on the sidelines of the G20 Summit in Germany and called on Korea to "remove obstacles to the improvement and development of bilateral relations," according to Xinhua News. This has been Beijing's habitual code for THAAD.

Beijing fears that the powerful radar that comes with the THAAD will be used to spy on its military movements. A Cheong Wa Dae official said, "The THAAD issue was discussed but remains unresolved. President Moon repeated his position and the two sides agreed to refer to the issue as an 'area of disagreement.'"

Moon said after their meeting that the "area of disagreement" has not been resolved. Instead, the two leaders agreed to tackle the issue in future talks between lower-ranking officials.

When Moon asked Xi to ease up on an unofficial boycott of Korean business in China, the Chinese president said he has no choice but to consider the "interest and concerns" of his people.

