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Singapore's NEA Proposes Adding 26 Chemicals to List of Hazardous Chemicals Requiring an HS License/Permit

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Singapore,Chemical,Hazardous,HS,License,Permit

From June 13 to July 4, 2022, Singapore's National Environment Agency (NEA) published a public consultation on the proposal to control 26 chemicals as hazardous chemicals because some of the 26 chemicals are highly toxic, polluting, and/or generate intractable waste that is difficult to manage and safely dispose of. During the consultation period, 52 feedbacks were received and suggestions on regulatory details were also collected. Below we have prepared a summary of the HS license/permit application and requirements.

The 26 chemicals are all listed in the Chemical Weapons Convention (CWC). Companies must consult relevant departments on the control of these substances.

The NEA intends to publish these regulatory changes by December 2022. These changes will be followed by a six-month transitional period before coming into effect by June 2023. If the Proposed Control is successfully adopted, enterprises must make amendments to their existing HS license/permit or apply for an HS license/permit from January 1, 2023. Moreover, enterprises must obtain a valid HS license/permit to perform specified activities by June 2023.

Companies performing activities involving any of these 26 chemicals shall obtain HS license/permit regardless of quantity. If companies have any questions about the exemption purity of these substances, they can provide relevant information to NEA by November 10.

26 Chemicals that NEA Proposes Regulating as Hazardous Substances

S/N

Chemical Name

CAS Registry No.

1

O-Alkyl(≤C10, including cycloalkyl) alkyl (Me, Et, n-Pr or i-Pr)-phosphonofluoridates

e.g.

Sarin: O-Isopropyl methylphosphonofluoridate

Soman: O-Pinacolyl methylphosphonofluoridate

107-44-8

96-64-0

2

O-Alkyl (H or ≤C10, including 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

50782-69-9

3

Lewisites:

Lewisite 1: 2-Chlorovinyldichloroarsine

Lewisite 2: Bis(2-chlorovinyl)chloroarsine

Lewisite 3: Tris(2-chlorovinyl)arsine

541-25-3

40334-69-8

40334-70-1

4

Nitrogen mustards:

HN1: Bis(2-chloroethyl)ethylamine

HN2: Bis(2-chloroethyl)methylamine

HN3: Tris(2-chloroethyl)amine

538-07-8

51-75-2

555-77-1

5

Saxitoxin

35523-89-8

6

Ricin

9009-86-3

7

Alkyl (Me, Et, n-Pr or i-Pr) phosphonyl difluorides

e.g.

DF: Methylphosphonyldifluoride

676-99-3

8

O-Alkyl (H or ≤C10, including 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

57856-11-8

9

Chlorosarin: O-Isopropyl methylphosphonochloridate

1445-76-7

10

Chlorosoman: O-Pinacolyl methylphosphonochloridate

7040-57-5

11

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

Methyl-(1-(diethylamino)ethylidene) phosphonamidofluoridate

2387495-99-8

2387496-12-8

12

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)-ndecylidene) phosphoramidofluoridate

Methyl (1-(diethylamino)ethylidene) phosphoramidofluoridate

Ethyl (1-(diethylamino)ethylidene) phosphoramidofluoridate

2387496-00-4

2387496-04-8

2387496-06-0

13

Methyl-(bis(diethylamino)methylene) phosphonamidofluoridate

2387496-14-0

14

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)

e.g.

1,10-Bis[N-(3-dimethylcarbamoxy-α picolyl)-N-ethyl-N-methylammonio] decane-2,9-dione dibromide

77104-62-2

77104-00-8

15

PFIB: 1,1,3,3,3-Pentafluoro-2-(trifluoromethyl) -1-propene

382-21-8

16

BZ: 3-Quinuclidinyl benzilate

6581-06-2

17

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 carbon atoms

e.g.

Methylphosphonyl dichloride

Dimethyl methylphosphonate

Exemption:

Fonofos: O-Ethyl S-phenyl ethylphosphonothiolothionate

676-97-1

756-79-6

944-22-9

18

Dialkyl (Me, Et, n-Pr or i-Pr) N,N-dialkyl (Me, Et, n-Pr or i-Pr)-phosphoramidates

/

19

2,2-Diphenyl-2-hydroxyacetic acid: Benzilic acid

76-93-7

20

Quinuclidin-3-ol

1619-34-7

21

N,N-Dialkyl (Me,Et,n-Pr or i-Pr) aminoethyl- 2-chlorides and corresponding protonated salts

/

22

N,N-Dialkyl (Me, Et, n-Pr or i-Pr) aminoethane-2-thiols and corresponding protonated salts

/

23

Thiodiglycol: Bis(2-hydroxyethyl)sulfide

111-48-8

24

Diethyl phosphite

762-04-9

25

Thionyl chloride

7719-09-7

26

Triethanolamine

102-71-6

As to the HS license/permit, enterprises shall make applications based on their activities.

HS license

HS permit

Entity/Applicants

Any person who imports, exports, manufactures, sells, transport, stores, and/or uses the regulated chemicals under the EPMA

Any person who purchases, stores, and/or uses any hazardous chemicals under the EPMA

Time

7 working days (complete and accurate submission of all documents)

7 working days (complete and accurate submission of all documents)

Types

Type 1: Hazardous Substances License;

Type 2: Temporary Hazardous Substances License

HS permit

Validity

One-year validity for Type 1;

Three months for Type 2.

One-year validity

As to the exemption situations, NEA gives a brief introduction. If these 26 chemicals are present in products or mixtures at low concentrations or as impurities, they are exempted from the proposed regulatory control. Moreover, companies shall submit supporting documents such as SDS and analytical reports to NEA for verification.

There are also another nine chemicals that NEA is currently co-regulating with the Singapore Customs, which are:

  • Amiton,
  • Arsenic trichloride,
  • Phosgene,
  • Cyanogen chloride,
  • Hydrogen Cyanide,
  • Chloropicrin,
  • Phosphorus oxychloride,
  • Phosphorus trichloride, and
  • Phosphorus pentachloride.

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