CHENGDU • The leaders of Japan and South Korea met yesterday for the first time in more than a year and stressed the need to improve ties after the worst period of tension between their countries in decades, officials from both sides said.

South Korean President Moon Jae-in and Japanese Prime Minister Shinzo Abe met on the sidelines of a trilateral summit with Chinese Premier Li Keqiang in the Chinese city of Chengdu, with tension over stalled denuclearisation talks between North Korea and the United States the main issue.

For Mr Moon and Mr Abe, it was also a chance to begin patching up ties that plummeted after South Korea's Supreme Court last year ordered Japanese firms to compensate some South Koreans forced to work for them during Japan's 1910-1945 colonial rule.

Japan then imposed restrictions on the export to South Korea of high-tech materials used in the manufacture of chips, compounding their dispute which threatened to undermine security cooperation between the two US allies.

Mr Moon expressed hopes for an early solution to their differences, while offering congratulations to Mr Abe for having become the country's longest-serving premier last month.

"Japan and South Korea are historically and culturally the closest neighbours, and very big, important partners on people-to-people exchanges," Mr Moon said. "We're not in a relationship that can set the two apart, even when there's some discomfort for a while."

At a separate press conference, Mr Abe said he would continue to coordinate closely with Mr Moon, but also placed the burden of resolving wartime disputes with Seoul.

He said it is South Korea's responsibility to come up with measures that would resolve bilateral disputes.

The two leaders agreed to meet more often, despite differences over history and trade, Mr Moon's spokesman Ko Min-jung told a briefing in Chengdu, adding they both wanted to resolve differences through dialogue.

Japan's Deputy Chief Cabinet Secretary Naoki Okada said the two had "candid" discussions recognising the importance of dialogue, though there were still "substantive differences".

"On some issues, although there was a tense atmosphere, they were able to have a candid exchange of views. Without this, they agreed, there would be no way to find a resolution," Mr Okada told a briefing in Chengdu.

Both leaders shook hands and smiled slightly before their 45-minute meeting, longer than the planned 30 minutes.

Last month, South Korea made a last-minute decision to maintain an intelligence-sharing deal with Japan.

The pact is important for trilateral security cooperation with the US. But despite South Korea's decision to maintain it, tensions linger, particularly over the emotive issue of Japanese compensation for its wartime rule.

Japan considers the issue of wartime-forced workers to have been resolved in a 1965 bilateral treaty.

REUTERS