On April 28, 2022, the Chinese Ministry of Ecology and Environment (MEE) published a notice to consult on the addition of 22 substances to the Inventory of Existing Chemical Substances in China (IECSC). The consultation will end on May 13, 2022. Update! China MEE Adds 22 Chemical Substances into IECSC - July 19, 2022 These 22 substances were manufactured in or imported into China before October 15, 2003, which fulfilled the supplementation criteria but missed the previous supplementation window.

No.	Name	Chemical Formula	CAS No.
1.	1,8-Diaminonaphthalene	C10H10N2	479-27-6
2.	4-Chloro-3,5-  dinitrobenzotrifluoride	C7H2ClF3N2O4	393-75-9
3.	m-Nitrotrifluorotoluene	C7H4F3NO2	98-46-4
4.	3-Cyclopentylpropanoyl chloride	C8H13ClO	104-97-2
5.	3-Cyclohexylpropionic acid	C9H16O2	701-97-3
6.	Ammonium O,O-     diisopropylthiophosphate	C6H18NO3PS	29918-57-8
7.	1-Bromo-4- (methylamino)anthraquinone	C15H10BrNO2	128-93-8
8.	4,7-Dichloroquinoline	C9H5Cl2N	86-98-6
9.	3,5,6-Trichloro-2-  hydroxybenzoic acid	C7H3Cl3O3	40932-60-3
10.	2,4,5-Trifluoro-3-methoxybenzoyl chloride	C8H4ClF3O2	112811-66-2
11.	Sodium N-chlorobenzenesulfonamide	C6H5ClNNaO2S	127-52-6
12.	Benzene, ethyl(1-phenylethyl)-	C16H18	35254-73-0
13.	(6R,7R)-7-[2-(furan-2yl)-2- (methoxyimino)acetamido]-3-carbamoyloxymethyl-8-oxo-5-thia- 1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid	C16H16N4O8S	55268-75-2
14.	(6R,7R)-7-[2-furanyl (methoxyimino)acetylamino]-3-hydroxymethyl-8-oxo-5- thia- 1-azabicyclo[4.2.0]oct- 2-ene-2-carboxylic acid	C15H15N3O7S	56271-94-4
15.	1,3-Bisbenzyl-2- oxoimidazolidine-4,5- dicarboxylic acid	C19H18N2O5	59564-78-2
16.	1-Isopropyl-3-tert- butylthiourea	C8H18N2S	52599-24-3
17.	[(6R,7R)-7-[[(2Z)-(2-Amino- 4-thiazolyl)[(1-carboxy- 1- methylethoxy)imino]acetyl] amino]-2-carboxy-8-oxo-5- thia- 1-azabicyclo[4.2.0]oct-2 -en-3-yl]methyl]pyridinium chloride monohydrochloride	C22H22O7N6 S2· 2HCl	73547-70-3
18.	N’-Methyl-N,N-diphenyl urea	C14H14N2O	13114-72-2
19.	N,N'-Diethyl-N,N'-diphenyl urea	C17H20N2O	85-98-3
20.	N-Chloromethyl-N-phenylcarbamoyl chloride	C8H7Cl2NO	52123-54-3
21.	Chromate(5-),bis[5-[(4,5- dihydro-3-methyl-5-oxo- 1- phenyl- 1H-pyrazol-4-yl)azo]- 4-hydroxy-3- benzenedisulfonato(4-)]-, tetrasodium hydrogen	C32H20CrN8O16S4 ·H ·4Na	68541-69-5
22.	Trisodium [ 1,2'-(2-(8-amino- 3,5-disulfonatonaphthalene) azo)-(4'-nitrobenzene)diolato-O,O,N][(Z)-2,2- ((phenylcarbamoylprop- 1'-enyl)azo)-5- sulfamoylbenzene)diolato- O,O,N]chromate(III)	C32H22CrN8O15S3 ·3Na	371973-51-2

Details of these substances can be assessed here, including chemical name (both in Chinese and English), CAS number or Series number, molecular formula, structural formula, etc. They are now going to be regulated as existing chemical substances in China, and thus free from new chemical registration or notification requirements under the Measures for the Ecology and Environmental Management Registration of New Chemical Substances (MEE Order No.12).