The listing of 15 substances as chemicals of concern will trigger further regulatory actions under Taiwan Region TCCSCA.On January 12, 2023, Taiwan Region EPA listed these 15 chemical substances as concerned chemical substances. Their production, import, sale, use, and storage are now subject to tightened regulations under Taiwan Region TCCSCA. Online sales of these substances are prohibited immediately. However, transitional periods have been granted for complying with new requirements, including pre-approval prior to manufacturing, import, sales, use or storage, handling quantity recording and reporting, accident prevention and emergency response, labeling, and SDS requirements, etc. For example, existing handlers shall obtain the approval before February 1, 2024. The 15 chemical substances include:
| CAS number | Chemical name |
| 110-63-4 | 1,4- Butanediol |
| 475-81-0 | (S)-5,6,6a,7-tetrahydro1,2,9,10-tetramethoxy-6-methyl4Hdibenzo[de,g]quinoline |
| 1317-36-8 | Lead monoxide |
| 1314-41-6 | Lead tetroxide |
| 1313-82-2 | Sodium sulfide |
| 540-72-7 | Sodium thiocyanate |
| 135-19-3 | β-Naphthol |
| 10124-37-5 | Calcium nitrate |
| 7631-99-4 | Sodium nitrate |
| 15245-12-2 | Calcium ammonium |
| 75-52-5 | Nitromethane |
| 26628-22-8 | Sodium azide |
| 7790-98-9 | Ammonium perchlorate |
| 7601-89-0 | Sodium perchlorate |
| 20859-73-8 | Aluminium phosphide |
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News Source: ChemLinked
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