On May 22, 2025, the European Commission released the EU Deforestation-Free Regulation (EUDR) and classified relevant countries into risk tiers, with China being included in the low-risk country list

On May 26, 2025, the National Institute of Chemical Safety (NICS) of South Korea issued Notice No. 2025-8, amending the Hazard Assessment Results of Chemical Substances (originally announced as Notice No. 2025-5 on February 18, 2025) under the Chemical Substances Registration and Evaluation Act (K-REACH) and its enforcement rules. The amendments take effect immediately upon publication.

On 27 May 2025, ECHA released IUCLID 6 (v9.0.1). Companies can now use it to prepare intention notifications under the EU Drinking Water Directive and submit notifications for microplastic restrictions under REACH.

Under K-REACH, polymers meeting PLC criteria may qualify for registration exemptions by submitting GPC reports.

On May 21, 2025, the New Hampshire State Senate and House of Representatives amended the RSA 149-M:64 regulation, introducing a new ban that explicitly prohibits the sale of ski wax, boat wax, surfboard wax, and similar sports products containing intentionally added per- and polyfluoroalkyl substances (PFAS).