Initiation of an Expiry Review of the Anti-Dumping Duty on Dipotassium Carbonate Originating in the Republic of Korea

1．Background

On June 19, 2025, the Minister of Finance received an application from AGC Inc. for an extension of the period* of imposition of the anti-dumping duty on dipotassium carbonate** originating in the Republic of Korea. The Ministry of Economy, Trade and Industry (METI) and the Ministry of Finance (MOF) examined the application in accordance with the WTO Agreements and related domestic laws and regulations. The results showed that the application had sufficient evidence to justify the initiation of an expiry review. Therefore, the ministries have decided to initiate a joint investigation (Public Notice on August 20, 2025). 

Notes

*The Government of Japan imposes the anti-dumping duty on dipotassium carbonate originating in the Republic of Korea (the rate of the anti-dumping duties is 30.8%), with a taxable period from June 24, 2021, to June 23, 2026. 

**A substance that generally takes the form of a white powder or colorless liquid and is mainly used as a material for lye water to be added to Chinese noodles, a material for detergent, or a material for glass, including liquid crystal panels, etc.

2. Outline of the Investigation

The expiry review is to be concluded within one year, in principle. The ministries will provide opportunities for interested parties and carry out a factual investigation of companies in the Republic of Korea and Japan.
Based on the results of the expiry review, the Government of Japan will determine whether or not there is the likelihood that the importation of the dumped product and the fact of material injury, etc., to the domestic industry caused by the importation of the dumped product would be likely to continue or recur after the expiry of the period, in accordance with the provisions of the international rules under the WTO Agreements and related domestic laws and regulations. It will then make a decision on whether or not to extend the period of imposition of the anti-dumping duty on the product subject to the expiry review.

Reference

• Summary of the Written Application from the Domestic Industry(PDF:48KB)
• Questionnaire (Japanese)

Division in Charge

• Office for Trade Remedy Investigations, Trade Control Department, Trade and Economic Security Bureau
• Metal Industries Division, Manufacturing Industries Bureau