Japanese and South Korean representatives facilitated understanding of each other's export control systems but achieved no substantial results in dialing back enhanced screening measures in their first policy dialogue in more than 3½ years, government officials said Monday evening.

The top export control officials from the two countries met in Tokyo for about 10 hours, three hours longer than scheduled, in an effort to alleviate months of economic friction and sour diplomatic relations.

The Ministry of Economy, Trade and Industry said the two sides discussed export control issues and exchanged information on their countries' export control systems, which are designed to curb the proliferation of materials that could be used to make weapons.