Background of Investigation Initiation The Ministry of Economy, Trade and Industry (METI) and the Ministry of Finance, following examination of the application submitted by Mitsubishi Chemical Corporation and Mitsui Chemicals, Inc. to the Minister of Finance on June 2, 2025, for imposing anti-dumping duties on bisphenol A from the Republic of Korea and the separate customs territory of Taiwan, Penghu, Kinmen and Matsu, recognized the necessity for investigation based on relevant laws and regulations and decided to initiate a joint investigation. Bisphenol A is generally a white solid (granular or powder form) primarily used as a raw material for polycarbonate resin or epoxy resin, making it an important chemical product.
Applicant Companies and Target Countries/Regions The applications were filed by Mitsubishi Chemical Corporation and Mitsui Chemicals, Inc., major Japanese chemical manufacturers that are key players in domestic bisphenol A production. The investigation targets bisphenol A from the Republic of Korea and the separate customs territory of Taiwan, Penghu, Kinmen and Matsu, focusing on the impact of imports from these regions on the Japanese market.
Investigation Implementation Methods and Duration The investigation is scheduled to conclude within one year in principle. Going forward, opportunities for evidence submission by interested parties will be provided, along with objective evidence collection through fact-finding surveys of companies in the Republic of Korea and the separate customs territory of Taiwan, Penghu, Kinmen and Matsu, as well as domestic Japanese companies. Based on these results, determinations will be made regarding whether facts of dumped goods imports and substantial injury to Japanese industry from such imports exist, in accordance with WTO agreements and relevant domestic laws and regulations.
Impact and Significance for Policy Decisions The investigation results will serve as important grounds for government decisions regarding the necessity of imposing anti-dumping duties. Bisphenol A is essential as a raw material for engineering plastics used in a wide range of fields including automotive parts, electronic devices, and building materials, making this an important case from the perspective of ensuring competitiveness of the domestic chemical industry and maintaining a fair trade environment. Details regarding questionnaires and other investigation materials are published on the website of the Special Tariff Investigation Office, Trade Management Department, Trade and Economic Security Bureau, ensuring transparency for stakeholders.