What supplier evidence should we keep for China RoHS? Direct answer

For each supplied part or material, keep the supplier's legal name, manufacturing site, part number, revision, covered materials, substance conclusion, supporting method, applicable standard, declaration date, authorised signatory, and change-notification commitment.

Map that evidence through the controlled bill of materials to the exact finished China model. A supplier declaration or EU RoHS document can be an input, but it does not establish the finished product's China marking, environmental protection use period, catalogue status, exception, or conformity-assessment conclusion.

Treat the nationally recognised finished-product self-declaration as a separate conformity output. It is completed by the catalogue product's supplier, which can include the producer or an authorised representative, and supported by evidence such as raw-material or component reports and supply-chain compliance records; a component supplier's declaration does not replace it.

Use a risk-based evidence package. A signed declaration may be enough for a low-risk, well-characterised material when its scope and basis are clear. Seek more specific analytical or test support when the declaration is incomplete, the material is high risk, supplier controls are weak, the result conflicts with other data, or the applicable standard or conformity route requires it. Record the reason for accepting the evidence or escalating to testing.

Reassess supplier evidence when the supplier, site, material, formulation, sub-tier source, part revision, manufacturing process, applicable standard, catalogue status, exception, or finished model changes. Also reopen the record when incoming inspection, testing, or market feedback conflicts with the supplier's conclusion.

From 1 January 2026 through 31 July 2027, catalogue-product conformity assessment may use GB/T 26572-2011 with Amendment 1 or GB 26572-2025. GB 26572-2025 becomes mandatory on 1 August 2027. The transition adds a concrete reason to check whether older supplier evidence covers the four added phthalates: DEHP, BBP, DBP, and DIBP.