REACH Only Representative: The Compliance Role Non-EU Exporters Cannot Afford to Overlook

Every year, manufacturers in North America, Asia-Pacific, and the Middle East export chemical substances into the EU and discover the same gap in their compliance strategy: they’re subject to REACH, but they can’t register directly with ECHA. The regulation requires an EU-established entity to submit registration dossiers. For manufacturers outside the Union, that means one of two things — your importer registers on your behalf, or you appoint an Only Representative.

The second option is almost always preferable. And yet the role is routinely misunderstood, poorly implemented, and sometimes filled by providers who lack the chemical expertise the job actually demands. Here’s what the regulation requires, how the appointment works in practice, and what gets non-EU exporters into trouble.

What REACH’s Only Representative Role Actually Means

Regulation (EC) No 1907/2006 — better known as REACH — establishes the Only Representative (OR) concept in Article 8. The logic is deliberately simple: a non-EU manufacturer has no legal standing under EU law and cannot hold a REACH registration number directly. So Article 8 allows a non-EU manufacturer to appoint a natural or legal person established in the European Union to fulfil, as the “only representative,” the registration obligations that would otherwise fall on each EU importer.

This single mechanism does several things at once. It shifts the registration burden away from your EU distribution partners. It keeps your formulation data and substance identity information under your control rather than your importer’s. And it lets you serve multiple EU importers through a single registration — rather than requiring each one to independently register the same substance, which is expensive and creates real friction in complex distribution chains.

Once an OR is formally appointed and notification letters are sent to your downstream importers, those importers are reclassified as “downstream users” under REACH. That’s not a technicality — it means they’re no longer legally responsible for registration compliance on your substance. That responsibility sits with your OR, acting on your mandate.

When the Registration Obligation Actually Applies

Not every shipment to the EU triggers a REACH registration. The thresholds determine whether you’re in scope — and getting them wrong in either direction creates problems.

Registration applies when a substance is manufactured in or imported into the EU at or above 1 tonne per year. This threshold applies per substance, per registrant. “Substances” in this context covers pure chemicals, component substances within formulated mixtures (subject to concentration and hazard-based exemptions), and in limited cases substances intentionally released from articles. Polymers themselves remain exempt from registration under current REACH — though the monomers and reactive substances used to make them generally are not.

If your formulated product contains multiple substances, each one above the 1 tonne/year threshold may require its own individual registration. ECHA’s registered substances database currently covers more than 22,000 unique substances, the bulk of which were registered under REACH’s phased deadlines that closed in 2018. Companies importing substances that are already registered by others don’t get a free pass — they still need to register, or appoint an OR who can join the existing SIEF (Substance Information Exchange Forum) and co-submit alongside current registrants.

Mixtures are an area that catches exporters off-guard with particular consistency. A formulated product — a fragrance blend, an industrial cleaner, a personal care ingredient — is not itself registered under REACH. But each hazardous component substance within that mixture, above the relevant concentration threshold, may require its own registration. It’s common to see importers assume that because their supplier “has a registration,” the full product is covered. That assumption doesn’t always hold.

What the Only Representative Does — Practically Speaking

Signing an OR mandate isn’t the end of the process. It’s the beginning of an ongoing compliance relationship. Here’s what a competent OR should be doing actively on your behalf:

ECHA registration and dossier maintenance. The OR submits (or joins) a registration dossier covering your substance at the appropriate tonnage band. REACH uses four tonnage bands: 1–10 tonnes/year, 10–100 tonnes/year, 100–1,000 tonnes/year, and above 1,000 tonnes/year. Each band carries progressively greater data requirements. Above 10 tonnes/year, a full Chemical Safety Report (CSR) is required. If your export volumes grow into a higher band, the registration must be updated — this is a live obligation, not a one-time filing.

Downstream user record-keeping. Your OR must maintain records of which EU importers have been notified and must ensure that the quantities those importers collectively import fall within the registered tonnage band. This sounds administrative, but in practice it requires active tracking as your distribution network evolves.

Safety Data Sheet compliance. REACH requires that conformant SDSs travel through the supply chain to professional downstream users. The applicable format is now governed by Regulation (EU) 2020/878, which aligned EU SDS requirements with GHS Revision 7 and became mandatory for newly issued SDSs from 1 January 2023. Your OR should either verify or produce compliant SDSs for each registered substance.

SVHC communication obligations. ECHA’s Candidate List of Substances of Very High Concern now contains more than 240 entries and is updated twice yearly. Under Article 33 of REACH, if an article contains a Candidate List substance above 0.1% by weight, the supplier must inform the customer — and inform consumers on request within 45 days. Your OR should be monitoring Candidate List updates and flagging implications for your substances.

Monitoring Annex XVII. The REACH restriction list is a living document. Restriction proposals are published in advance, but the timeline between proposal and entry into force can be short enough that companies relying on annual compliance reviews get caught. An active OR flags changes before they affect commercial operations.

Choosing the Right Only Representative: What to Actually Look For

The market for OR services has grown considerably since REACH’s phased registration deadlines created demand. It’s also attracted a range of providers — some highly competent, others operating without the chemical expertise the role genuinely requires.

Establishment in the EU is non-negotiable. Your OR must be legally established in the European Union. Post-Brexit, UK entities lost their eligibility to act as EU REACH Only Representatives on 1 January 2021. This is still catching companies out, particularly those that established their REACH compliance arrangements before Brexit and haven’t revisited them since. Some UK consultancies have set up EU subsidiaries — but check the legal entity, not just the brand name.

Look for genuine chemical regulatory expertise. Preparing and maintaining a REACH registration dossier requires competence in IUCLID (ECHA’s dossier preparation software), hazard classification under CLP Regulation (EC) No 1272/2008, and often ecotoxicological data evaluation. If a prospective OR can’t demonstrate fluency in these areas, they’re not equipped for the role regardless of how plausible their website looks.

Understand the liability architecture. Your OR acts in your name and carries the legal responsibility for the accuracy and completeness of your registration dossier. If the dossier is deficient or submitted with incorrect data, ECHA can reject the registration — and your EU importers’ downstream user status dissolves immediately. In France, enforcement authority falls to the DGCCRF (Direction Générale de la Concurrence, de la Consommation et de la Répression des Fraudes), which has the power to order product withdrawal from the French market pending compliance. National authorities in Germany and the Netherlands have similarly robust enforcement postures.

Check their substance portfolio. An OR managing a very large portfolio of substances across dozens of clients is worth scrutinising. The role carries active obligations for each substance — Candidate List monitoring, SDS updates, tonnage tracking. A provider stretched across too many mandates may not be meeting those obligations diligently for each one.

Common Mistakes That Derail Non-EU Exporters

After working with companies from across North America and Asia-Pacific on EU market entry, a few failure patterns repeat themselves reliably.

Relying on the importer to “handle REACH.” Many non-EU manufacturers assume their EU distributor will register on their behalf and call it done. The importer can register — but they then control the dossier, including any proprietary substance data it contains. If your commercial relationship with that importer ends, so can your registration coverage. An OR you appoint is accountable to you.

Registering at the wrong tonnage band. Underestimating annual import volumes across a full distribution network is common in the early stages of EU market entry. If collective exports to the EU push your substance into a higher tonnage band, you’re technically out of compliance until the registration is updated. ECHA requires registrants to keep tonnage information current.

Treating appointment as a one-time task. This is perhaps the most common operational failure. REACH compliance is an ongoing programme, not a project with a close date. Companies that appoint an OR, tick the box, and don’t revisit the arrangement for three years often find that regulatory changes have quietly put them out of compliance.

Using a UK-based OR post-Brexit without an EU legal entity. As above — but worth repeating because it remains surprisingly common. If your OR service agreement was signed before 2021 and you haven’t confirmed the legal entity holding your mandate is EU-established, verify this immediately.

What a Well-Structured OR Arrangement Looks Like

A competent Only Representative appointment will include a formal written mandate signed by the non-EU manufacturer, notification letters issued to all EU importers confirming their downstream user status, clear documentation of which substances and tonnage bands the OR covers, a process for annual tonnage reporting and dossier maintenance, and proactive communication when regulatory changes — Candidate List additions, Annex XVII amendments, CLP reclassifications — affect your substances.

If a prospective OR can’t walk you through that process in specific terms, that’s meaningful information about the quality of service you’d receive.

REACH compliance for non-EU manufacturers is one of the more operationally involved aspects of EU market entry, but the Only Representative mechanism exists precisely to make it manageable. The risk isn’t the complexity — it’s treating a structured legal obligation as something you can delegate to the lowest-cost provider and forget about.

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Written by Nour Abochama, Quality & Regulatory Advisor, Care Europe | VP Operations, Qalitex. Learn more about our team

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