Tokyo lodged a protest against Seoul, saying it had broken an agreement on what the two sides would disclose from the Friday discussions on Japan’s curbs of exports to Korea of some materials used to make high-tech equipment, said Japanese trade ministry official Jun Iwamatsu.

Japan’s Ministry of Economy, Trade and Industry (METI) also disputed a Korean official’s statement that Seoul had asked Japan on Friday to withdraw the restrictions. But a Korean trade ministry official shot back that Seoul had “clearly demanded Japan withdraw its trade restrictions at yesterday’s meeting, and there should be no disagreement over that matter with Japan.”

Japan recently tightened restrictions on the export of three materials used in high-tech equipment, citing what it has called “inadequate management” of sensitive items exported to South Korea, as well as a lack of consultations about export controls.