G/TBT/N/SGP/66  
4 November 2022  
(22-8313) Page: 1/5 
Committee on Technical Barriers to Trade  Original:  English  
 
  
NOTIFICATION  
The following notification is being circulated in accordance with Article 10.6  
 
1. Notifying Member:  SINGAPORE  
If applicable, name of local government involved (Article 3.2 and 7.2):   
2. Agency responsible:   
National Environment Agency (NEA)  
Name and address (including telephone and fax numbers , email and website 
addresses, if available) of agency or authority designated to handle comments 
regarding the notification shall be indicated if different from above:   
3. Notified under Article 2.9.2 [X], 2.10.1 [  ], 5.6.2 [  ], 5.7.1 [  ], 3.2 [  ], 7.2 [  ], 
other :  
4. Products covered (HS or CCCN where applicable, otherwise national tariff 
heading. ICS numbers may be provided in addition, where applicable):   
S/N HS codes  Chemical Name Chemicals (non -exhaustive)  
1 29315990  O-Alkyl(≤C10, including cycloalkyl) alkyl (Me, Et, 
n-Pr or i -Pr)-phosphonofluoridates  
e.g. : Sarin  
         Soman  O-ALKYL (<= C10, INCL. CYCLOALKYL) ALKYL 
(ME, ET, N -PR OR I-PR)-
PHOSPHONOFLUORIDATES E.G. - SARIN: O -
ISOPROPYL METHYLPHOSPHONOFLUORIDATE, - 
SOMAN: O -PINACOLYL 
METHYLPHOSPHONOFLUORIDATE  
O-ISOPROPYL METHYLPHOSPHONOFLUORIDATE 
(SARIN)  
O-PINACOLYL METHYLPHOSPHONOFLUORIDATE 
(SOMAN)  
O-ETHYL METHYLPHOSPHONO FLUORIDATE  
O-CYCLOHEXYL METHYLPHOSPHONO FLUORIDATE 
(CYCLOSARIN)  
O-n-BUTYL METHYLPHOSPHONO FLUORIDATE  
O-CYCLOHEXYL ETHYLPHOSPHONOFLUORIDATE  
O-ISOPROPYL -D7 
METHYLPHOSPHONOFLUORIDATE  
O-PINACOLYL -D13 
METHYLPHOSPHONOFLUORIDATE  
O-ISOPROPYL ETHYLPHOSPHONOFLUORIDATE  
O-ISOBUTYL METHYLPHOSPHONOFLUORIDATE  
2 29309090  O-Alkyl (H or ≤C10, incl. Cycloalkyl) S -2-dialkyl 
(Me, Et, n -Pr or i -Pr)-aminoethyl alkyl (Me, Et, n -
Pr or i -Pr) phosphonothiolates and corresponding 
alkylated or protonated salts  
e.g. VX  O-ALKYL (H OR <= C10, INCL. CYCLOALKYL) S -2-
DIALKYL (ME, ET, N -PR OR I -PR)-AMINOETHYL 
ALKYL (ME, ET, N -PR OR I -PR) 
PHOSPHONOTHIOLATES AND CORRESPONDING 
ALKYLATED OR PROTONATED SALTS  E.G. - VX: O -
ETHYL S -2-DIISOPROPYLAMINOETHYL METHYL 
PHOSPHONOTHIOLATE  
O-ETHYL S -2- DIISOPROPYLAMINOETHYL 
METHYLPHOSPHONOTHIOLATE (VX)  
O-(2-METHYLPROPYL) S -2-DIETHYLAMINOETHYL 
METHYLPHOSPHONOTHIOLATE (RUSSIAN VX)  G/TBT/N/SGP/66  
 
- 2 - 
 
  O-PROPYL S -2- DIISOPROPYLAMINOETHYL 
METHYL PHOSPHONOTHIOLATE  
O-n-BUTYL S -2- DIETHYLAMINOETHYL 
METHYLPHOSPHONO THIOLATE (CHINESE VX)  
O-ETHYL S -2- DIETHYLAMINOETHYL 
ETHYLPHOSPHONO THIOLATE (VE)  
O-ETHYL -D5 S-2- DIISOPROPYLAMINOETHYL 
METHYLPHOSPHONO THIOLATE  
O-ETHYL S -2- DIETHYLAMINOETHYL 
METHYLPHOSPHONOTHIOLATE (VM)  
S-2-DIISOPROPYLAMINOETHYL 
METHYLPHOSPHONOTHIOLATE  
3 29319041;  
29319049  Lewisites:  
Lewisite 1: 2 -Chlorovinyldichloroarsine  
Lewisite 2: Bis(2 -chlorovinyl)chloroarsine  
Lewisite 3: Tris(2 -chlorovinyl)arsine  LEWISITE 1: 2 -CHLOROVINYLDICHLOROARSINE  
LEWISITE 2: BIS(2 -
CHLOROVINYL)CHLOROARSINE  
LEWISITE 3: TRIS(2 -CHLOROVINYL)ARSINE  
4 29211900  Nitrogen mustards:  
HN1: Bis(2 -chloroethyl)ethylamine  
HN2: Bis(2 -chloroethyl)methylamine  
HN3: Tris(2 -chloroethyl)amine  HN1: BIS(2 -CHLOROETHYL)ETHYLAMINE  
HN2: BIS(2 -CHLOROETHYL)METHYLAMINE  
HN3: TRIS(2 -CHLOROETHYL)AMINE  
5 30029000  Saxitoxin  SAXITOXIN  
6 30029000  Ricin RICIN  
7 29315990  Р-alkyl (H or ≤C10, incl. cycloalkyl) N -(1-
(dialkyl(≤C10, incl. 
cycloalkyl)amino))alkylidene(H or ≤C10, incl. 
cycloalkyl) phosphonamidic fluorides and 
corresponding alkylated or protonated salts  
e.g. N -(1-(di-n-decylamino) -n-decylidene) -P-
decylphosphonamidic fluoride  
e.g. Methyl -(1-
(diethylamino)ethylidene)phosphonamidofluoridat
e P-ALKYL (H OR <=C10, INCL. CYCLOAL KYL) N -(1-
(DIALKYL(<=C10, INCL. 
CYCLOALKYL)AMINO))ALKYLIDENE(H OR <=C10, 
INCL. CYCLOALKYL) PHOSPHONAMIDIC 
FLUORIDES AND CORRESPONDING ALKYLATED 
OR PROTONATED SALTS E.G. N -(1-(DI-N-
DECYLAMINO) -N-DECYLIDENE) -P-
DECYLPHOSPHONAMIDIC FLUORIDE E.G. 
METHYL -(1-(DIETHYLAMINO)ETHYLIDENE) 
PHOSPHONAMIDOFLUORIDATE  
N-(1-(DI-n-DECYLAMINO) -n-DECYLIDENE) -P-
DECYLPHOSPHONAMIDIC FLUORIDE  
METHYL -(1-(DIETHYLAMINO)ETHYLIDENE)  
8 29299090  O-alkyl (H or ≤C10, incl. cycloalkyl) N -(1-
(dialkyl(≤C10, incl. 
cycloalkyl)amino))alkylidene(H or ≤C10, incl. 
cycloalkyl) phosphoramidofluoridates and 
corresponding alkylated or protonated salts  
 
e.g: O -n-Decyl N -(1-(di-n-decylamino) -n-
decylidene)phosphor amidofluoridate  
e.g: Methyl (1 -(diethylamino)ethylidene) 
phosphoramidofluoridate  
e.g: Ethyl (1 -(diethylamino)ethylidene) 
phosphoramidofluoridate  O-ALKYL (H OR <=C10, INCL. CYCLOALKYL) N -(1-
(DIALKYL(<=C10, INCL. 
CYCLOALKYL)AMINO))ALKYLIDENE(H OR <=C10, 
INCL. CYCLOALKYL) 
PHOSPHORAMIDOFLUORIDATES AND 
CORRESPONDING ALKYLATED OR PROTONATED 
SALTS E.G. O -N-DECYL N -(1-(DI-N-
DECYLAMINO) -N-
DECYLIDENE)PHOSPHORAMIDOFLUORIDATE E.G. 
METHYL (1 -(DIETHYLAMINO)ETHYLIDENE) 
PHOSPHOR AMIDOFLUORIDATE E.G. ETHYL (1 -
(DIETHYLAMINO)ETHYLIDENE) 
PHOSPHORAMIDOFLUORIDATE  
O-n-DECYL N -(1-(DI-n-DECYLAMINO) -
nDECYLIDENE) PHOSPHORAMIDOFLUORIDATE  
METHYL (1 -(DIETHYLAMINO)ETHYLIDENE) 
PHOSPHORAMIDOFLUORIDATE  
ETHYL (1-(DIETHYLAMINO)ETHYLIDENE) 
PHOSPHORAMIDOFLUORIDATE  
O-BUTYL N -(1- (DIBUTYLAMINO)BUTYLIDENE) 
PHOSPHORAMIDOFLUORIDATE  
9 29315990  Methyl -(bis(diethylamino)methylene)  
phosphonamidofluoridate  METHYL -(BIS(DIETHYLAMINO)METHYLENE) 
PHOSPHONAMIDOFLUORIDATE  
10 29333990  Carbamates (quaternaries and bisquaternaries of 
dimethylcarbamoyloxypyridines)  
 
Quaternaries of dimethylcarbamoyloxypyridines:   
1-[N,N-dialkyl(≤C10) -N-(n-(hydroxyl, cyano, 
acetoxy)alkyl(≤C10)) ammonio] -n-[N-(3-
dimethylcarbamoxy -α-picolinyl) -N,N-
dialkyl(≤C10) ammonio]decane dibromide (n=1 -
8)  
e.g: 1 -[N,N-dimethyl -N-(2-
hydroxy)ethylammonio] -10 [N - (3-
dimethylcarbamoxy -α-picolinyl) -N,N 
dimethylammonio]decane dibromide  
 
Bisquaternaries of 
dimethylcarbamoyloxypyridines:  
1,n-Bis[N -(3-dimethylcarbamoxy -α-picolyl) N,N -
dialkyl(≤C10) ammonio] -alkane -(2,(n-1) dione) 
dibromide (n=2 -12) CARBAMATES (QUATERNARIES OF 
DIMETHYLCARBAMOYLOXYPYRIDINES): 1 -[N,N-
DIALKYL(<=C10) -N-(N-(HYDROXYL, CYANO, 
ACETOXY)ALKYL(<=C10)) AMMONIO] -N-[N-(3-
DIMETHYLCARBAMOXY -ALPHA -PICOLINYL) -N,N-
DIALKYL(<=C10) AMMONIO]DECANE D IBROMIDE 
(N=1 -8) E.G. 1 -[N,N-DIMETHYL -N-(2-
HYDROXY)ETHYLAMMONIO] -10-[N-(3-
DIMETHYLCARBAMOXY -ALPHA -PICOLINYL) -N,N-
DIMETHYLAMMONIO]DECANE DIBROMIDE  
CARBAMATES (BISQUATERNARIES OF 
DIMETHYLCARBAMOYLOXYPYRIDINES): 1,N-
BIS[N -(3-DIMETHYLCARBAMOXY -ALPHA -
PICOLYL) -N,N-DIALKYL(<=C10) AMMONIO] -
ALKANE -(2,(N -1)-DIONE) DIBROMIDE (N=2 -12) 
E.G. 1,10 -BIS[N -(3-DIMETHYLCARBAMOXY -
ALPHA -PICOLYL) -N-ETHYL -N-
METHYLAMMONIO]DECANE -2,9-DIONE 
DIBROMIDE  G/TBT/N/SGP/66  
 
- 3 - 
 
  e.g. 1,10 -Bis[N -(3-dimethylcarbamoxy -α picolyl) -
N-ethyl-N-methylammonio] decane -2,9-dione 
dibromide  1-[N,N-DIMETHYL -N-(2-
HYDROXY)ETHY LAMMONIO] -10 [N - (3-
DIMETHYLCARBAMOXY -α-PICOLINYL) -N,N 
DIMETHYLAMMONIO]DECANE DIBROMIDE  
1,10-BIS[N -(3-DIMETHYLCARBAMOXY -α 
PICOLYL) -N-ETHYL -N-METHYLAMMONIO] 
DECANE -2,9-DIONE DIBROMIDE  
11 29315990  Alkyl (Me, Et, n -Pr or i -Pr) phosphonyl difluorides  
e.g.  
DF: Methylphosphonyldifluoride  ALKYL (ME, ET, N -PR OR I -PR) 
PHOSPHONYLDIFLUORIDES E.G. - DF: 
METHYLPHOSPHONYLDIFLUORIDE  
DF: METHYLPHOSPHONYLDIFLUORIDE  
12 29314990  O-Alkyl (H or ≤C10, incl. Cycloalkyl) O -2- dialkyl 
(Me, Et, n -Pr or i -Pr)-aminoethyl alkyl (Me, Et, n -
Pr or i -Pr) phosphonites and corresponding 
alkylated or protonated salts  
e.g.  
QL: O -Ethyl O -2-diisopropylaminoethyl 
methylphosphonite  O-ALKYL (H OR <= C 10, INCL. CYCLOALKYL) O -2-
DIALKYL (ME, ET, N -PR OR I -PR)-AMINOETHYL 
ALKYL (ME, ET, N -PR OR I -PR) PHOSPHONITES 
AND CORRESPONDING ALKYLATED OR 
PROTONATED SALTS E.G. - QL: O -ETHYL O -2-
DIISOPROPYLAMINOETHYL METHYLPHOSPHONITE  
QL: O -ETHYL O-2-DIISOPROPYLAMINOETHYL 
METHYLPHOSPHONITE  
13 29315990  Chlorosarin: O -Isopropyl 
methylphosphonochloridate  CHLOROSARIN: O -ISOPROPYL 
METHYLPHOSPHONOCHLORIDATE  
14 29315990  Chlorosoman: O -Pinacolyl 
methylphosphonochloridate  CHLOROSOMAN: O-PINACOLYL 
METHYLPHOSPHONOCHLORIDATE  
15 29035900  PFIB:  1,1,3,3,3 -Pentafluoro -2-(trifluoromethyl) -
1-propene  PFIB:  1,1,3,3,3 -PENTAFLUORO -2-
(TRIFLUOROMETHYL) -1-PROPENE  
16 29333990  BZ: 3 -Quinuclidinyl benzilate  BZ: 3 -QUINUCLIDINYL BENZILATE  
17 29315990  Chemicals, except for those listed in Schedule 1 of 
the Annex on Chemicals of the Chemical Weapons 
Convention , containing a phosphorus atom to 
which is bonded one methyl, ethyl or propyl 
(normal or iso) group but not further carbon 
atoms  
 
e.g.: M ethylphosphonyl dichloride  
Dimethyl methylphosphonate  CHEMICALS, EXCEPT FOR THOSE LISTED IN 
SCHEDULE 1, CONTAINING A PHOSPHORUS ATOM 
TO WHICH IS BONDED ONE METHYL, ETHYL OR 
PROPYL (NORMAL OR ISO) GROUP BUT NOT 
FURTHER CARBONS ATOMS, E.G. - 
METHYLPHOSPHONY L DICHLORIDE - DIMETHYL 
METHYLPHOSPHONATE EXEMPTION: - FONOFOS: 
O-ETHYL S -PHENYL 
ETHYLPHOSPHONOTHIOLOTHIONATE  
DICHLOROMETHYL PHOSPHINE  
DIETHYL METHYLPHOSPHONATE  
ETHYL METHYLPHOSPHONATE  
ETHYLPHOSPHONIC DICHLORIDE  
PINACOLYL METHYLPHOSPHONATE  
PROPYLPHOSPHONIC ACID  
DIETHYL METHYLPHOSPHONITE  
29314100  DIMETHYL METHYLPHOSPHONATE  
29314200  DIMETHYL PROPYLPHOSPHONATE  
29314300  DIETHYL ETHYLPHOSPHONATE  
29314400  METHYLPHOSPHONIC ACID  
29314500  SALT OF METHYLPHOSPHONIC ACID & 
AMINOIMINOMETHYL UREA (1:1)  
29314600  2,4,6 -TRIPROPYL -1,3,5,2,4,6 -
TRIOXATRIPHOSPHINANE 2,4,6 -TRIOXIDE  
29314700  (5-ETHYL -2-METHYL -2-OXIDO -1,3,2-
DIOXAPHOSPHINAN -5-YL)METHYL METHYL 
METHYLPHOSPHONATE  
29314800  3,9-DIMETHYL -2,4,8,10 -TETRAOXA -3,9-
DIPHOSPHASPIRO (5.5) UNDECANE 3,9 -DIOXIDE  
29314990  SODIUM 3 -(TRIHYDROXYSILYL)PROPYL 
METHYLPHOSPHONATE  
29315100  METHYLPHOSPHONIC DICHLORIDE  
29315200  PROPYLPHOSPHONIC DICHLORIDE  
29315300  O-(3-CHLOROPROPYL) O -(4-NITRO -3-
(TRIFLUOROMETHYL) PHENYL) 
METHYLPHOSPHONOTHIONATE  
18 29299090  Dialkyl (Me, Et, n -Pr or i -Pr) N,N -dialkyl (Me, Et, 
n-Pr or i-Pr)-phosphoramidates  DIALKYL (ME, ET, N -PR OR I -PR) N,N -DIALKYL 
(ME, ET, N -PR OR I -PR)-PHOSPHORAMIDATES  
19 29181700  2,2-Diphenyl -2-hydroxyacetic acid: Benzilic acid  2,2-DIPHENYL -2-HYDROXYACETIC ACID: 
BENZILIC ACID  
20 29333500  Quinuclidin -3-ol QUINUCLIDIN -3-OL 
21 29211900  N,N-Dialkyl (Me,Et,n -Pr or i -Pr) aminoethyl - 2-
chlorides and corresponding protonated salts  N,N-DIALKYL (ME, ET, N -PR OR I -PR) 
AMINOETHYL -2-CHLORIDE AND CORRESPONDING 
PROTONATED SALTS  G/TBT/N/SGP/66  
 
- 4 - 
 
  29211400  2-DIISOPROPYLAMINOETHYL CHLORIDE 
HYDROCHLORIDE  
29211300  2-(N,N-DIETHYLAMINO)ETHYLCHLORIDE 
HYDROCHLORIDE  
29211200  2-(N,N-DIMETHYLAMINO)ETHYLCHLORIDE 
HYDROCHLORIDE  
22 29309090  N,N-Dialkyl (Me, Et, n -Pr or i -Pr) aminoethane -2- 
thiols and corresponding protonated salts  N,N-DIALKYL (ME, ET, N -PR OR I -PR) 
AMINOETHANE -2-THIOLS AND CORRESPONDING 
PROTONATED SALTS  
2-(DIMETHYLAMINO)ETHANETHIOL 
HYDROCHLORIDE  
2-DIETHYLAMINOETHANETHIOL HYDROCHLORIDE  
29301000  2-(N,N-DIMETHYLAMINO) ETHANETHIOL  
29306000  2-(N,N-DIETHYLAMINO)ETHANETHIOL  
23 29307000  Thiodiglycol: Bis(2 -hydroxyethyl)sulfide  THIODIGLYCOL: BIS(2 -HYDROXYETHYL)SULFIDE  
24 29202200  Diethyl phosphite  DIETHYL PHOSPHITE  
25 28121700  Thionyl chloride  THIONYL CHLORIDE  
26 29221500  Triethanolamine  TRIETHANOLAMINE  
 
5. Title, number of pages and language(s) of the notified document:  Draft 
Environmental Protection and Management Act 1999 (Amendment of Second Schedule) 
(No. 2) Order 2022 (10 pages, in English) and Draft Environmental Protection and 
Management (Hazardous Substances) (Amendment No. 2) Regulations 2022; (6 page(s), 
in English)  
6. Description of content:  Singapore's National Environment Agency (NEA) is proposing 
to regulate 26 ne w chemicals and chemical groups (see Section 4 above) as hazardous 
substances under the Environmental Protection and Management Act (EPMA) and the 
Environmental Protection and Management (Hazardous Substances) Regulations (EPM 
(HS) Regs).  
These 26 chemical s and chemical groups have been identified as toxic chemicals and 
precursors under the Chemical Weapons Convention (CWC), and are currently regulated 
by Singapore Customs, as the National Authority for the Chemical Weapons Convention 
(NA(CWC)), through the  Chemical Weapons (Prohibition) Act (CWPA) and the Chemical 
Weapons (Prohibition) Regulations. Under the CWPA, depending on the CWC Schedule 
that the chemicals belong to, companies are required to apply for a NA(CWC) licence from 
Singapore Customs if they are engaged in activities including the import, export, 
production, processing, consumption and local sale and distribution of these chemicals.  
From July 2023, NEA will also be regulating these 26 chemicals and chemical groups under 
the EPMA and EPM (HS) R egs. Once the regulations take effect, companies will be required 
to apply for a Hazardous Substances (HS) licence/permit from NEA for the import, export, 
manufacture, sale, transport, storage and/or use of these chemicals and of products 
containing these chemicals. Accordingly, companies engaged in activities involving any of 
these chemicals would have to comply with the requirements on the import, export, 
manufacture, offer for sale, transport, storage and/or use of hazardous substances, that 
are stipulat ed in the EPMA and EPM (HS) Regs. These include, inter alia , labelling and 
other requirements for the containers/tanks and vehicles that are used to store or 
transport the chemicals, as well as other specific safety and documentational 
requirements.  
7. Objective and rationale, including the nature of urgent problems where 
applicable:  While Singapore Customs currently regulates the 26 chemicals and chemical 
groups under the CWPA, the focus of the CWPA is on counter -proliferation measures in 
the fulfilment o f Singapore's international obligations to the CWC and is limited in 
addressing the domestic security and safety risks posed by these chemicals.  
The regulation of these chemicals under the EPMA and the EPM (HS) Regs will therefore 
fill this gap, through th e stipulation of requirements on the import, export, manufacture, 
sale, transport, storage and/or use of hazardous substances. This will minimise the 
domestic security and safety risks posed by these chemicals and serve the objectives of 
safeguarding publi c health and safety and protecting the environment. ; Protection of 
human health or safety; Protection of the environment  G/TBT/N/SGP/66  
 
- 5 - 
 
  8. Relevant documents:   
Environmental Protection and Management Act (EPMA), 149 pages, in English (Available 
online at https://sso.agc.gov.sg//Act/EPMA1999 ) 
Environmental Protection and Management (Hazardous Substances) Regulati ons, 24 
pages, in English (available online at https://sso.agc.gov.sg//SL/94A -RG4 
9. Proposed date of adoption:  January 2023 – Notice will be published in the Republic of 
Singapore's Government Gazette whe n adopted.  
Proposed date of entry into force:  July 2023  
10. Final date for comments:  60 days from notification  
11. Texts available from:  National enquiry point [ ] or address, telephone and fax 
numbers and email and website addresses, if available , of other body:   
Mr Lester Foo  
Engineer  
Chemical Control and Management Department, Pollution Control 1 Division  
National Environment Agency  
40 Scotts Road, Environment Building, #17 -00 
Singapore 228231  
Email: lester_foo@nea.gov.sg