In accordance with the Regulations of the People's Republic of China on Open Government Information (State Council Order No. 711), the Ministry of Ecology and Environment released the approval results for the 9th batch of simplified registration certificates for the environmental management of new chemical substances. The list includes eight newly registered substances, approved for either production or import, submitted by various domestic and international companies.

List of Approved Chemicals (9th Batch, 2025):
1) Alkyl-alkyl-aryl-p-phenylenediamine
2) 1,5-Diisocyanate combined with pentane homopolymer
3) Methyl 3-hydroxy-2-methylene butyrate
4) Sodium 1-capylpyrrolidin-2-carboxylate
5) 1,6-divinylperfluorohexane
6) N,N'-bis[3-[[(4-methylphenyl)sulfonyl]oxy]phenyl]urea
7) [(Alkyl aryl sulfonates of aminoary)amino]nitro heteronalyskethane dione
8) 2,4-dichloropyrimidine

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Alkyl-alkyl-aryl-p-phenylenediamine; 1,5-Diisocyanate combined with pentane homopolymer; Methyl 3-hydroxy-2-methylene butyrate; Sodium 1-capylpyrrolidin-2-carboxylate