UK REACH – UK HSE Adds 24 Hazardous Chemicals to the Candidate List

Vol. 1560 | 11 Nov 2026

The UK HSE has added 24 substances and substance groups to the UK REACH Candidate List in 2026, expanding it to 233 entries. Suppliers must now assess communication and notification duties for articles, mixtures and substances containing these SVHCs.

Following Brexit, the UK REACH Candidate List of Substances of Very High Concern (SVHC) remained unchanged at 209 entries (inherited from EU REACH as of June 2020) until mid-2026.

On 15 June 2026, the Health and Safety Executive (HSE) officially added 15 substances/groups of SVHC on the UK REACH Candidate List, marking its first major post-Brexit expansion. Subsequently, On 19 October 2026, the HSE added another 9 substances/groups of SVHCs on the UK REACH Candidate List. Those 24 substances/groups of SVHCs on the UK REACH Candidate List have been added in EU SVHC. As a result of these updates, the UK REACH Candidate List now contains 233 entries, compared to 253 entries under EU REACH.

Below 15 + 9 substances/groups of SVHC on the UK REACH Candidate List in 2026:

• 2,2',6,6'-tetrabromo-4,4'-isopropylidenediphenol (TBBPA)
• 2,2-bis(bromomethyl)propane-1,3-diol (BMP); 2,2-dimethylpropan-1-ol, tribromo derivative/3-bromo-2,2-bis(bromomethyl)-1-propanol (TBNPA); 2,3-dibromo-1-propanol (2,3-DBPA)
• 2-(4-tert-butylbenzyl)propionaldehyde and its individual stereoisomers (Lysmeral)
• 2-(dimethylamino)-2-[(4-methylphenyl)methyl]-1-[4-(morpholin-4-yl)phenyl]butan-1-one  (Omnirad)
• 6,6'-di-tert-butyl-2,2'-methylenedi-p-cresol (DBMC)
• 6-[(C10-C13)-alkyl-(branched, unsaturated)-2,5-dioxopyrrolidin-1-yl]hexanoic acid (Tetra-PSCA)
• Barium diboron tetraoxide
• Bis(2-(2-methoxyethoxy)ethyl)ether (tetraglyme)
• Bis(α,α-dimethylbenzyl) peroxide
• Dioctyltin dilaurate, stannane, dioctyl-, bis(coco acyloxy) derivatives., and any other stannane, dioctyl-, bis(fatty acyloxy) derivatives. wherein C12 is the predominant carbon number of the fatty acyloxy moiety (DOTL)
• Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide
• N-(hydroxymethyl)acrylamide
• Orthoboric acid, sodium salt
• Reactive Brown 51:Tetra(sodium/potassium) 7-[(E)-{2-acetamido-4-[(E)-(4-{[4-chloro-6-({2-[(4-fluoro-6-{[4-(vinylsulfonyl)phenyl]amino}-1,3,5-triazine-2- yl)amino]propyl}amino)-1,3,5-triazine-2-yl]amino}-5-sulfonato-1-naphthyl)diazenyl]-5- methoxyphenyl}diazenyl]-1,3,6-naphthalenetrisulfonate
• Tris(2-methoxyethoxy)vinylsilane
• Medium-Chain Chlorinated Paraffins (MCCPs)
• 1,1'-[ethane-1,2-diylbisoxy]bis[2,4,6-tribromobenzene] (BTBPE)
• Bis(4-chlorophenyl) sulphone (BCPS)
• 2-tert-butyl-6-(5-chloro-2H-benzotriazol-2-yl)-4-methylphenol (Bumetrizole)
• Oligomerisation and alkylation reaction products of 2-phenylpropene and phenol (OAPP)
• Reaction mass of triphenylthiophosphate and tertiary butylated phenyl derivatives
• O,O,O-triphenyl phosphororthioate (TPPT)
• Perfluoroheptanoic acid and its salts
• 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]diphenol and its salts

Suppliers of these substances are reminded of the need to comply with the following additional duties, which arise following inclusion on the Candidate List:

• duty to communicate information on substances in articles
• notification of substances in articles
• duty to communicate information on substances in mixtures
• duty to communicate information on substances

Further information can be found on HSE’s website.

You can view the full candidate list of UK SVHCs through the following:

https://www.hse.gov.uk/reach/assets/docs/candidate-list.xlsx

If you have further questions, please contact Dr. Kathy Leung (Kathy.Leung@intertek.com) or Dr. Ben Cheng (Ben.PS.Cheng@intertek.com)

 

 

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