The UK Health and Safety Executive (HSE), acting as the Agency for UK REACH, has added 15 new substances/groups of substances of very high concern (SVHCs) to the UK REACH Candidate List. The inclusion follows a six-week external consultation and HSE's consideration of comments on the identity and hazardous properties of the substances.
News Brief
On June 15, 2026, HSE formally included 15 new substances/groups on the UK REACH Candidate List. These substances were previously subject to public consultation and are now within the SVHC compliance management framework under UK REACH.
The newly included substances cover a broad range of industrial uses, including flame retardants, photoinitiators, dyes, specialty solvents, cross-linking agents, polyurethane catalysts, corrosion inhibitors, detergents and glass manufacturing applications. Businesses placing substances, mixtures or articles on the Great Britain market should review whether their products or supply chains are affected.
HSE also noted that further consultations on the inclusion of additional SVHCs on the UK REACH Candidate List will be launched during the remainder of the 2026 to 2027 work year and announced through HSE's e-bulletin.
15 New Substances/Groups Added to the UK REACH Candidate List
The 15 new substances/groups added to the UK REACH Candidate List are:
| No. | Substance/Group | Common Name / Abbreviation |
|---|---|---|
| 1 | 2,2',6,6'-tetrabromo-4,4'-isopropylidenediphenol | TBBPA |
| 2 | 2,2-bis(bromomethyl)propane-1,3-diol; 2,2-dimethylpropan-1-ol, tribromo derivative/3-bromo-2,2-bis(bromomethyl)-1-propanol; 2,3-dibromo-1-propanol | BMP; TBNPA; 2,3-DBPA |
| 3 | 2-(4-tert-butylbenzyl)propionaldehyde and its individual stereoisomers | Lysmeral |
| 4 | 2-(dimethylamino)-2-[(4-methylphenyl)methyl]-1-[4-(morpholin-4-yl)phenyl]butan-1-one | Omnirad 379 / Photoinitiator 379 |
| 5 | 6,6'-di-tert-butyl-2,2'-methylenedi-p-cresol | DBMC |
| 6 | 6-[(C10-C13)-alkyl-(branched, unsaturated)-2,5-dioxopyrrolidin-1-yl]hexanoic acid | Tetra-PSCA |
| 7 | Barium diboron tetraoxide | - |
| 8 | Bis(2-(2-methoxyethoxy)ethyl)ether | Tetraglyme |
| 9 | Bis(α,α-dimethylbenzyl) peroxide | Dicumyl peroxide |
| 10 | 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 and related derivatives |
| 11 | Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide | TPO |
| 12 | N-(hydroxymethyl)acrylamide | - |
| 13 | Orthoboric acid, sodium salt | - |
| 14 | 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 | Reactive Brown 51 |
| 15 | Tris(2-methoxyethoxy)vinylsilane | - |
Key Sectors and Product Scenarios to Watch
Electrical and Electronic Products, Plastics and Rubber
Flame retardants such as TBBPA may be relevant to printed circuit boards, plastic housings and related materials. Peroxide cross-linking agents may be used in rubber and plastic systems, while photoinitiators may appear in UV-curable inks, coatings and 3D printing materials. Manufacturers and importers should review flame-retardant systems, UV-curing formulations and cross-linked polymer applications.
Textiles, Dyes and Finishing Agents
Reactive Brown 51 and N-(hydroxymethyl)acrylamide may be relevant to textile dyeing, finishing and cross-linking applications. Textile brands, processors and suppliers should assess dye formulations, finishing auxiliaries and declarations from upstream suppliers for products placed on the Great Britain market.
Coatings, Inks, Adhesives and Polyurethane Systems
DOTL and related organotin derivatives may be associated with polyurethane catalysis, while specialty solvents and photoinitiators may be relevant to coatings, inks and adhesive formulations. Chemical suppliers and formulators should update safety data sheets, technical declarations and customer communication where necessary.
Fragrances, Detergents and Glass Manufacturing
Lysmeral and its stereoisomers may be relevant to fragrance supply chains, while orthoboric acid sodium salt may be relevant to detergent formulations and glass manufacturing. Companies should assess whether reformulation, substitution planning or additional supply chain communication is needed.
What Compliance Obligations Are Triggered?
Inclusion on the UK REACH Candidate List does not automatically mean that the substance is banned. However, it triggers communication and notification-related obligations for suppliers and may also be a step toward future authorisation or restriction measures.
Substances: Suppliers of substances listed on the UK REACH Candidate List must provide a safety data sheet to customers.
Mixtures: For certain mixtures containing Candidate List substances at or above relevant thresholds, suppliers may need to provide safety data sheets upon request.
Articles: If an article contains a Candidate List substance above 0.1% w/w, suppliers must provide sufficient information to allow safe use, including at least the name of the substance.
Consumer requests: Where applicable, equivalent information must be provided to consumers within the required timeframe after a request is received.
Notification: Producers, importers or suppliers of articles containing Candidate List substances may need to notify HSE, depending on the product and supply situation.
Recommended Actions for Companies
Screen raw materials, formulations and articles against the 15 newly listed substances/groups.
Request updated declarations, SDSs and technical documents from upstream suppliers.
Assess article-level SVHC concentration, especially for complex products and components supplied to Great Britain.
Update SDSs, product compliance statements and customer communication where Candidate List obligations are triggered.
Prepare substitution or risk-control plans for substances that are critical to product performance or may face further regulatory action.
Monitor HSE's Registry of SVHC Intentions until Outcome and upcoming 2026-2027 consultations to anticipate further UK REACH Candidate List updates.
How REACH24H Can Help
REACH24H can support companies with UK REACH and SVHC compliance by providing:
UK REACH applicability assessment and regulatory strategy review;
SVHC screening for substances, mixtures, articles and complex products;
SDS and label compliance review under UK REACH and GB CLP;
Supply chain communication templates and supplier declaration management;
Support for UK REACH registration, notification and ongoing compliance monitoring.
Need to assess whether your products are affected by the updated UK REACH Candidate List?
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