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Japan Proposes 117 PFHxS Substances for Class I Designation

Japan has officially designated PFHxS-related substances as Class I Specified Chemical Substances under the CSCL. This amendment will take effect six months after its promulgation.

Editor's Note: This article was originally published in December 2025 to report on the designation of PFHxS-related substances, and was updated on January 28, 2026, to include the newly released draft list of specific substances.

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