On May 6, 2025, China’s Ministry of Ecology and Environment (MEE) published an official notice announcing updates to the Inventory of Existing Chemical Substances in China (IECSC). 

New and Registered Substances Added to IECSC 

• 44 new substances were added to the IECSC. These are chemicals that are now officially recognized as existing substances in China. This update is listed as the 2025 First Batch (Total Batch 13). 

• 37 substances, which were previously registered as new chemical substances, have now been officially added to the IECSC. This means they are no longer considered “new” and can be managed under existing substance rules. This is the 2025 First Batch (Total Batch 15). 

Revised Use Conditions for Two Substances 

• The allowed uses for 2 existing substances have been changed. This is important for companies who use or import these chemicals, as they must follow the new use conditions. This update is listed as the 2025 First Batch for Use Changes (Total Batch 1). 

These updates where made under China’s chemical management rules under MEE Order No. 12. Companies should check the updated listingss and ensure compliance with any changes. 

For more details, companies can visit the MEE website or contact their local environmental authority.