How to verify REACH compliance claims from chemical suppliers

A supplier’s statement that a chemical is “REACH compliant” is a starting point, not a purchasing decision. The claim becomes useful only when it can be tied to the exact substance or mixture, the organisation responsible for placing it on the EU market, the intended use and the supporting documentation.

For procurement teams assessing eco compliant chemicals suppliers, the practical test is whether the evidence supports the proposed transaction. A registration number may be relevant, but it does not by itself establish that a particular use is permitted. An up-to-date safety data sheet is essential for many hazardous products, but it is not a certificate of compliance. Restrictions, authorisation requirements and changes in supply-chain roles can all affect the answer.

Start with the product and the transaction

Before requesting documents, define exactly what is being purchased and how it will enter the EU market. A supplier may sell the same commercial grade through different legal entities or supply routes. Those differences matter because REACH obligations attach to specific actors and activities, not simply to a product name.

Build the request around a short set of facts:

• The product’s trade name, grade and intended use.
• The identity of the substance or, for a mixture, the relevant constituent substances.
• The manufacturing site and the legal entity selling the product.
• The legal entity importing it into the EU, where applicable.
• The expected annual volume and delivery route.
• The countries where the product will be supplied or used.

For a single substance, ask for its chemical name, EC number and CAS number where available. These identifiers help match the supplier’s claim to regulatory information, but a number alone may not capture the composition of a complex substance. For substances of unknown or variable composition, complex reaction products or biological materials, known as UVCBs, ask for the substance identity and composition information appropriate to that material.

For a mixture, such as a solvent blend or formulated coating additive, the compliance review generally has to consider its constituent substances. A registration number for one ingredient does not establish the status of the entire formulation. Commercial confidentiality can limit what appears in an SDS, so a separate substance-specific statement may be needed for the intended purchase.

Establish who carries the registration obligation

Under EU REACH, registration generally applies to substances manufactured in or imported into the EU at one tonne or more per year per manufacturer or importer, unless an exemption applies. The obligation can apply to substances on their own and to substances in mixtures. Articles have different rules, so a purchase of a finished component should not automatically be assessed in the same way as a bulk chemical.

When buying from an EU supplier, ask which legal entity is responsible for the relevant registration and whether the supply is covered. A distributor’s assurance may depend on information received from a manufacturer or importer further upstream. That does not make the assurance worthless, but procurement should understand its basis and obtain enough information to resolve discrepancies.

For a direct purchase from outside the EU, identify the EU importer. A buyer importing a substance or mixture may have registration responsibilities unless, for example, the non-EU manufacturer has appointed an EU-based only representative whose registration covers the relevant import. In that case, request written confirmation of the only representative’s identity and that the specific supply to the buyer is covered, including the relevant substance and volume arrangements.

A statement that a non-EU supplier “has REACH registration” needs closer examination. The procurement question is which eligible EU legal entity holds the registration and whether the buyer’s imports fall within its coverage. Changing the importing entity, supplier or supply route can change that assessment even when the chemical itself stays the same.

Not every substance requires registration in every transaction. Exemptions can depend on the substance, quantity, use or other legal conditions. If a supplier relies on an exemption, ask it to identify the applicable basis and explain how the supplied material and intended transaction meet those conditions. Treat an unexplained “exempt” declaration as an open question.

How to use a registration number

Request the relevant REACH registration number where registration applies. Check that the substance identity on the supporting documents matches the material being ordered, and ask the supplier to explain any mismatch in names, identifiers or legal entities.

ECHA’s published chemical information can help corroborate substance identity and reveal whether information has been published about registrations, restrictions or other regulatory processes. It should not be treated as a complete public verification of a particular supplier’s legal entitlement to supply a particular order. Public information may not establish the connection between a registration, a confidential supply chain, an only representative’s coverage and the volume allocated to a buyer.

Registration is also not a product approval or a general assurance that every use is safe or permitted. For example, a substance registered as an intermediate under strictly controlled conditions should not be assumed to be covered for an ordinary formulation or end use. Ask the supplier to explain whether the registration and communicated conditions support the proposed use.

Read the safety data sheet against the intended use

Obtain the latest applicable safety data sheet for the product and the market of supply. In the EU, an SDS is required in specified circumstances, including for hazardous substances and mixtures; some mixtures must also be supplied with one on request. Where no SDS is required, the supplier may still have duties to communicate relevant information under REACH.

An SDS provides a structured basis for checking the supplier’s claim. It is not proof that every registration or downstream obligation has been met. Procurement should review it with the people responsible for EHS and the proposed application, concentrating on:

• Section 1: Product identification, supplier details and identified uses. Check that the named legal entity and product grade match the order, and look for uses advised against.
• Section 2: Hazard classification and labelling. Compare these with the product description and ask about unexplained differences.
• Section 3: Composition information. Check disclosed substance identities against the compliance declaration, recognising that mixture disclosure follows specific rules and may not list every ingredient.
• Sections 7 and 8: Handling, storage and exposure controls. Determine whether the proposed plant, application and protective measures can meet the stated conditions.
• Section 15: Regulatory information. Use it to identify issues requiring follow-up, not as a substitute for checking the applicable legal entries.
• Section 16: Revision information and other relevant details. Ask about substantive changes where the SDS differs from an earlier version.

Where an exposure scenario is required, it is normally supplied as an annex to the SDS. The downstream user should check whether its use and conditions of use are covered, including operational conditions and risk management measures. A coating manufacturer, for example, should not assume that a solvent supplied for industrial use automatically covers every formulation process or customer application.

If the use is not covered, involve the supplier and the downstream user’s technical and regulatory teams before proceeding. Depending on the circumstances, options may include asking the supplier to address the use, changing operating conditions or considering other downstream-user obligations. The purchasing team should not resolve that gap by simply accepting a general compliance letter.

Check restrictions, authorisation and the actual application

A registered substance can still be subject to restrictions under REACH Annex XVII. Restrictions are substance- and use-specific: an entry may limit concentration, particular applications, supply to certain users or other conditions. Check the wording applicable to the substance, mixture or article and to the intended transaction. A supplier’s broad statement that a product is “not restricted” is less useful than a declaration identifying the relevant substance and use considered.

For substances listed in Annex XIV, authorisation requirements must also be assessed. After an applicable sunset date, placing a listed substance on the market for a use or using it generally requires an authorisation covering that use, unless an exemption or other applicable provision applies. Where a supplier refers to an authorisation, ask for enough detail to establish the substance, authorised use, holder and any conditions relevant to the supply chain. A registration number is not a substitute for this assessment.

The Candidate List of substances of very high concern, or SVHCs, requires a different reading. Candidate List inclusion does not automatically ban a chemical or mean that an Annex XIV authorisation is already required. It can, however, trigger communication or other obligations in defined circumstances. For articles containing a Candidate List substance above 0.1% weight by weight, suppliers have specific communication duties under REACH. Do not apply that article threshold as a blanket pass-or-fail rule for every bulk chemical or mixture.

Because list entries and legal conditions can change, check the ECHA resources and the relevant legal text at the time of the decision. Record which product composition, use and supply route were assessed. For a complex formulation, ask the supplier to confirm how it has evaluated relevant substances, including any impurities that could affect the applicable restrictions.

Turn a compliance claim into a purchase record

A useful supplier declaration is specific enough to be tested. It identifies the product and grade, the supplying legal entity, the regulatory framework considered and the date of the statement. Where relevant, it should explain registration coverage, the basis for any exemption, applicable restrictions and whether the intended use has been considered.

Request clarification when documents conflict. An SDS naming one supplier while the declaration names another may reflect a legitimate distribution arrangement, but the relationship should be clear. Likewise, a declaration for a parent company does not automatically establish coverage for every subsidiary, substance and import route. Ask for a corrected document or written explanation that connects the evidence to the transaction.

Some details may be commercially sensitive. Where a supplier cannot disclose a complete formulation, procurement can ask for a targeted written confirmation against identified legal requirements, supported by an appropriate confidentiality arrangement where necessary. The response still needs enough detail for the buyer’s regulatory team to assess its relevance; “all products comply with all regulations” leaves too much unresolved.

Use the outcome to distinguish three purchasing positions: evidence supports the specified transaction; the transaction may proceed only after a defined condition is met; or the evidence is insufficient to release the order. Conditions might include confirmation of only representative coverage, receipt of an applicable exposure scenario or a documented assessment of a restriction.

Keep the declaration, SDS, correspondence and assessment linked to the approved supplier, product grade and intended use. Revisit the decision when any of those change, when the importing entity changes, or when the supplier issues a material regulatory update. That record gives procurement a defensible basis for the order and gives EHS a clear starting point for the next review.