At the request of Seoul, the issue of Japan's tough regulation has been named a formal agenda item for the General Council, the highest decision-making body of the WTO next to the biannual Ministerial Conference, according to the ministry.

Tokyo announced its export restrictions earlier in the month, tightening exports to South Korea of key tech materials used to produce semiconductors and display panels.  

At the gathering, Kim plans to point out that Japan's latest trade restrictions do not comply with the WTO's regulations, and he will ask other countries to assist efforts to call for Tokyo to retract the measure, which could have a major impact on global supply chains.

"We plan to emphasize that Japan's measures do not fall in line with the spirit of the WTO and possibly violate its agreement," a trade ministry official said, adding one of its major goals at the meeting is to win other countries' support on its stance against the neighbor's export restriction.

Seoul insists the move is politically motivated as Japan has long demanded the nullification of a Seoul court decision ordering Japanese companies to compensate South Korean workers forced into labor during World War II.

Diplomatic and economic tensions are escalating between Seoul and Tokyo, and Japan is widely expected to expand the curbs to other areas soon.

Japan is threatening to remove South Korea from a "whitelist" of trusted importers, which will have a far-reaching impact on Asia's fourth-largest economy.

The South Korean government earlier said it has started a legal review of the plan to file a complaint with the WTO about Japan's export restriction, although it has not yet decided on a detailed schedule. (Yonhap)