10 substances were added to the U.S. CEPN Priority Chemicals List

Update Date: Nov 11, 2026

In April 2026, the Clean Electronics Production Network (CEPN), a U.S.-based organization dedicated to promoting transparency and safety in the use of chemicals during the production of electronic products, officially released its 3rd Round of Priority Chemicals. This round adds 10 new solvents, bringing the total number of priority chemicals to 35. The CEPN Priority Chemicals List began with the first round (9 substances) in December 2019, followed by the second round (16 new substances) in June 2023. The third round now released adds another 10 solvents. The selection of all three rounds of priority chemicals has focused on solvents used as process chemicals in the electronics manufacturing industry, particularly those used in cleaning products. Substances included in the Priority Chemicals List will be prioritized for elimination or substitution in the electronics manufacturing industry.

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