Data sourced from the public IECSC and supplementary lists.
Data updated to 2026
China IECSC Inventory Search Guide And FAQ
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What is the China Existing Chemical Substances Inventory (IECSC)?
IECSC is a chemical substance inventory published by the MEE of China. The inventory is continuously updated through "supplementary lists," with the latest version including substances added up to the latest 2026 batches.
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What if a substance is not listed in the IECSC Inventory?
If the search result shows that it is not included in IECSC, the substance is a "new chemical substance" and must undergo new chemical substance environmental management registration before production or import.
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Can the online IECSC search replace official regulatory determination?
Online search is for reference only. The final determination is based on the application materials submitted by the enterprise and the official review. It is recommended to conduct detailed chemical name comparison or professional consultation for borderline cases.
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How often is the China IECSC updated and where is the 2026 latest version?
IECSC is updated periodically. The current search results at Regulix include substances added in the latest 2026 supplementary batches published by the authorities.