In December 2022, the South Korea Toxic Chemical Substances List was updated in accordance with a revision published in the official gazette, adding the following substances to the list:

1. Zinc oxide

2. Copper oxide

3. 1,4-Dibromo-2,5-bis(trifluoromethyl)benzene

4. 9,9-Bis(4-hydroxyphenyl)fluorene

5. N'-(3,4-Dichlorophenyl)-N,N-dimethyl urea

6. 4-methoxy-N-phenyl-o-toluidine

7. N,N-Dioctadecylanilinium tetrakis(pentafluorophenyl)borate

8. 4-Mercaptophenol

9. Fuel oil, residual

10. Copper sulfate

11. N-(2-Ethylhexyl)-N'-phenyl-1,4-benzenediamine

12. o-Phenylphenol

13. Naphthalene

14. Disulfiram