
HSE has confirmed the first substances to be added to the UK REACH Candidate List under its new fast-tracked alignment process with ECHA — announced back in February. Fifteen substances already on ECHA’s Candidate List have now been carried across to the UK list, in what HSE has described as the first of several regular tranches going forward.
This is the first real test of how the new process actually runs in practice — and it’s a useful signal of the pace businesses should now expect.
What’s been added
The fifteen substances span a mix of the categories that typically attract SVHC scrutiny: several phthalate-type plasticisers used in flexible plastics, a small group of PFAS-related substances, two organophosphate flame retardants, and a handful of solvents and processing aids used across manufacturing and industrial applications. As with any Candidate List addition, identification is based on properties such as CMR classification (carcinogenic, mutagenic or toxic for reproduction), PBT/vPvB status, or equivalent level of concern.
If any of these substance categories appear in your formulations, articles or supply chain — even as minor additives, coatings or processing residues — they’re worth checking specifically, rather than assuming existing declarations still cover you.
Why this first batch matters
- It confirms the timeline is real. These substances moved from ECHA listing to UK listing markedly faster than under the old independent UK process — this is the shortened runway in action, not just a policy statement.
- More tranches are coming on a regular cycle. HSE has indicated this won’t be a one-off catch-up exercise; expect further batches at regular intervals as ECHA’s own Candidate List continues to grow.
- 0.1% w/w notification duties are now live for these substances. If any article you place on the UK market contains one of the newly listed substances above 0.1% w/w, Article 33 communication duties apply from the UK listing date, not the earlier ECHA date.
What to check now
- Cross-reference the new UK additions against your article and substance inventories, not just your EU-facing ones.
- Check incoming supplier declarations and safety data sheets for any of the affected substance categories, and query anything that looks out of date.
- Update customer-facing SVHC communications and any pre-prepared Article 33 responses so they reflect the current UK list, not last quarter’s.
- If you weren’t already tracking ECHA’s Candidate List closely, treat this as the moment to start — the gap between an ECHA listing and a UK obligation is now short enough that “we’ll deal with it when HSE lists it separately” is no longer a safe assumption.
How we can help
We’re already helping clients screen their portfolios against this first tranche and get communications updated before customers start asking. If you’d like us to run your product range against the current UK Candidate List and flag anything that needs attention, get in touch and we’ll get started.
Want help applying this to your own product range?
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