A matte-coated gift box is ready for approval, but the coating supplier will not share its formulation. The brand needs evidence for the EU market before it can settle the packaging specification. Another request for the complete recipe may leave both sides in the same position.

A workable route starts with the exact material, the requirement being assessed and the evidence needed to support it. A specific supplier declaration, a relevant test report or a confidential technical review may answer the question while protecting proprietary details. The arrangement must still give the legally responsible business the information and access its duties require.

Start with the material and the question

For a rigid box, begin with a short component list tied to the drawing or specification: board, wrapping paper, printing inks, coating or lamination, adhesives and insert materials. Record the relevant grade, version and location in the box. A report for plain wrapping paper leaves the subsequently applied ink and coating unanswered; an adhesive trade name without a grade may cover several different products.

A controlled material code can keep a commercial name out of widely circulated documents. It needs a reliable link to the underlying supplier, material grade and version, held by an identified party and accessible where the assessment or legal duties require it. Production records must also connect that code to what was actually used. Otherwise, confidentiality has removed the link that makes the evidence useful.

Describe the intended use alongside the material. A gift box holding closed fragrance bottles and packaging intended to touch unwrapped chocolates raise different questions. Include the destination market and intended date of placing the packaging on that market, then name the requirement you need to assess. A request for “EU compliance” alone gives the supplier too little direction.

At CMIC, we can work back from the box specification to the relevant material suppliers and connect their documents to the proposed construction. The useful intermediate result is a clear record of each material, its supporting evidence and any question still open. That helps the brand concentrate on consequential decisions while we coordinate the upstream requests.

Identify who must be able to use the evidence

The EU Packaging and Packaging Waste Regulation, or PPWR, generally applies from 12 August 2026, with individual requirements following different timetables. Evidence requests should distinguish requirements applicable to the packaging now from preparations for later obligations. An assurance covering every present and future PPWR requirement is difficult to substantiate.

PPWR uses manufacturer as a legal role. Under Article 3(1)(13), the business that has packaging or a packaged product designed or manufactured under its own name or trademark is generally the manufacturer. For example, an EU brand commissioning its branded gift boxes from China should not assume that the box factory holds this role simply because it makes the boxes. Identify the manufacturer and any separate EU importer for the actual supply arrangement.

• The manufacturer must carry out or commission the conformity assessment before placing packaging on the market, establish the technical documentation and draw up the EU declaration of conformity when compliance has been demonstrated.
• Suppliers of packaging or packaging materials must provide the manufacturer with all information and documentation necessary to demonstrate conformity, including the required technical documentation relevant to their supply.
• An EU importer must ensure that the manufacturer has completed the assessment and prepared the technical documentation. The importer must keep a copy of the declaration and ensure that the technical documentation can be made available to authorities.

These duties appear in PPWR Articles 15, 16 and 18. Annex VII requires technical documentation that enables conformity to be assessed, including an adequate analysis of non-conformity risks and, where applicable, component materials, specifications and test reports. Confidentiality arrangements need to support that work.

Ask for evidence that answers a defined question

For ordinary paper gift packaging, one concrete question is the combined heavy-metal limit in PPWR Article 5(4). The sum of lead, cadmium, mercury and hexavalent chromium in packaging or packaging components must not exceed 100 mg/kg. The four concentrations are added; the provision does not allow 100 mg/kg of each. A useful request identifies this limit and the materials or components the supporting evidence covers.

A statement that a substance is not intentionally added describes a formulation decision. A concentration limit also raises questions about impurities or other sources of its presence. Ask what supports the supplier’s conclusion: formulation review, raw-material declarations, analytical results or other relevant records. This allows an assessor to judge whether the information closes the question or whether additional evidence is needed.

A safety data sheet for a liquid ink or adhesive supplies useful information about hazards and safe handling. Its ingredient section should not be read as a complete recipe. A technical data sheet may explain application and performance. Keep both as useful inputs, while obtaining evidence that addresses the particular packaging requirement. Likewise, an upstream material declaration contributes to the manufacturer’s assessment; it does not replace the EU declaration for the packaging.

Use testing to close a specific gap

Before sending a sample, agree with the laboratory what the result needs to establish. Where a limit applies to a component, mixing that component with a much larger mass of board can dilute its measured concentration. Ask the laboratory to explain whether the appropriate sample is an individual component, the finished construction or both, and whether the tested material represents its condition in the finished box. A result for wet adhesive needs interpretation before it can describe the dried adhesive layer.

Reporting limits matter too. Not detected means the method did not detect the substance above its stated detection limit; it does not mean absolute zero. For a combined limit, ask how non-detects and reporting limits were handled in the assessment. A targeted test also answers only the questions within its analytical scope. Supplier knowledge helps identify what needs investigation, while testing supplies measured evidence where it is useful.

If a supplier offers a redacted report, request an authorized copy that preserves the issuer, report number, sample identity or verified mapping, methods, results and relevant limitations. The responsible reviewer needs to establish what the document represents. A recent report for a different coating grade is less useful than an older report whose continued applicability to the actual material can be demonstrated.

For the wider relationship between supplier documents, laboratory reports and the packaging technical file, see our guide to PPWR Testing and Reports for Paper Packaging: What Brands Should Request.

Give necessary confidential information a controlled route

Where an assessment needs composition details that the supplier will not circulate to the purchasing team, propose direct disclosure to an agreed laboratory or qualified assessor under a confidentiality agreement. Define the assessment before exchanging information, so the reviewer can specify which identities, concentrations, impurities or use restrictions are necessary.

1. Agree the recipients and purpose. Identify who will receive the information, what they may use it for and the onward disclosures needed to meet legal obligations.
2. Specify a useful assessment output. It should identify the material and version, requirements assessed, evidence and methods used, conclusions, conditions of use and unresolved questions. A bare statement that the formula was reviewed gives the manufacturer little to work with.
3. Settle the records and access arrangements. Determine which underlying information must form part of the manufacturer’s retained technical documentation, who holds any confidential annexes and how necessary records will remain available, including after the commercial relationship ends.

An NDA or third-party custody arrangement does not automatically satisfy PPWR’s information duties. The manufacturer remains responsible for its assessment and documentation. Where composition details are necessary to demonstrate conformity or must be supplied by law, the chosen arrangement must provide the required access. Agree this before commissioning the review, so its output can actually support the technical file.

The access arrangements also need to work over time. Manufacturers must retain the technical documentation and declaration for five years for single-use packaging and ten years for reusable packaging, from the date it was placed on the market. Importers keep the declaration copy and ensure technical documentation is available for the corresponding periods. Both manufacturers and importers must provide the necessary documents within ten days of receiving a reasoned request from a national authority. An arrangement requiring fresh negotiations with the formulation owner each time would be difficult to rely on.

For food contact, the useful answer may be a use limit

FEICA’s guidance on food contact status declarations for adhesives, section 3.4, illustrates how useful information can be supplied without routinely sharing a complete recipe. An adhesive supplier can calculate worst-case migration and provide a maximum application weight for the assessed packaging-to-food ratio. The downstream user receives a practical condition to apply. The calculation’s assumptions and restrictions must accompany that limit, and the final food-contact material still needs assessment for its actual use.

This is industry guidance for food-contact applications, where factors such as the material structure, food type, contact time and temperature affect the assessment. Food-contact packaging also has specific PFAS concentration limits under PPWR Article 5(5), applying from 12 August 2026. Evidence for those content limits is a separate question from whether an adhesive is suitable under particular migration conditions.

Connect approval to the evidence and the production version

A workable evidence package connects the actual material and version to a defined requirement, a supported conclusion and the necessary records. If the gap is a missing sample reference, obtain the mapping. If it is an unanswered substance question, arrange the appropriate review or test. An alternative grade or finish becomes sensible when necessary evidence cannot be obtained even through an acceptable confidential route. Compare the replacement sample and its evidence together before approving it.

Once the material is approved, include its controlled identification in the specification and agree advance notification of changes that could affect conformity. A different pigment, coating formulation or adhesive source can change the assessment while leaving the box looking much the same. Article 15(4) requires manufacturers to reassess where they find that conformity could be affected. Updated supplier information or targeted testing can form part of that work.

A supplier request you can adapt

Please provide the evidence supporting [named requirement] for [material code and version] used in [packaging reference and revision], for [market and intended use]. Identify the relevant declaration or report, its assessment basis, any conditions of use and its connection to the supplied material.

If necessary formulation information is confidential, please propose direct disclosure to our agreed assessor or laboratory. We need an assessment output suitable for the technical documentation and arrangements that provide the responsible operator with all information and records required for its legal duties.

Please also confirm how changes to the formulation, grade or source will be notified before they affect our orders.

If a confidential formulation is holding up your packaging decision, talk with us at CMIC. With the packaging specification, intended use and supplier documents already available, we can help identify the unresolved question, coordinate suitable upstream information or laboratory work, and connect the resulting evidence to the materials approved for production.