Japan Publishes FY2025 GHS Classification Results for 142 Chemical Substances

Japan's National Institute of Technology and Evaluation (NITE) has published the FY2025 GHS classification results for 142 chemical substances. The update includes 59 newly classified substances and 83 substances with revised classifications, providing an important technical reference for the preparation and updating of labels and Safety Data Sheets (SDS) in the Japanese market.

On July 3, 2026, Japan's National Institute of Technology and Evaluation (NITE) published the FY2025 GHS classification results on behalf of the Ministry of Health, Labour and Welfare (MHLW), the Ministry of Economy, Trade and Industry (METI), and the Ministry of the Environment (MOE). Details of the GHS classification programme can be found on NITE’s official website.

The update covers a total of 142 chemical substances, of which 59 have been classified for the first time and 83 correspond to revised or reassessed classifications. The results cover the period from April 1, 2025, to March 31, 2026.

Among the affected substances are fluorinated compounds and PFAS, lithium compounds, lead compounds, and other substances of industrial interest that are receiving increasing regulatory attention due to their potential risks to human health and the environment.

Japanese authorities publish these classifications as a technical reference to support companies in the preparation of labels and Safety Data Sheets. NITE classifications are not mandatory in themselves, and companies may use alternative scientific data or test results when they have sufficient information to justify a different classification.

Nevertheless, the publication represents a reference recognised by Japanese authorities and may have a significant impact on hazard review processes, document updates, and regulatory compliance activities for manufacturers, importers, and users of chemical substances in Japan.

Companies marketing substances or mixtures in Japan should review the complete list of the 142 substances included in this update to determine whether they are present in their products, raw materials, or supply chains, and assess the impact of the new classifications on their Safety Data Sheets and labels. Through Chemeter, Siam, helps companies identify and manage regulatory changes such as this Japanese GHS update, facilitating the monitoring of affected substances and their regulatory implications.