RoHS and WEEE, and they work in opposite ways. RoHS (
Directive 2011/65/EU, Annex II as amended by Delegated
Directive (EU) 2015/863) restricts ten substances in electrical and electronic equipment: lead, mercury, cadmium, hexavalent chromium, the brominated flame retardants PBB and PBDE, and the four phthalates DEHP, BBP, DBP and DIBP. The limit does not apply to the appliance as a whole but per homogeneous material (Article 4(2)). Every separate material has to stay under the limit on its own: a solder joint, a cable sheath, a piece of housing, a coating. A test report that measures a whole appliance as one sample therefore says nothing about compliance. Cadmium is capped at 0.01 % by weight; the other nine at 0.1 %. The four phthalates have applied since 22 July 2019, and since 22 July 2021 for medical devices and monitoring and control instruments, and they do not apply to cables or spare parts for equipment placed on the market before those dates. RoHS is a product requirement proven in the technical file; there is nothing to register. What it asks of your EU importer is in Article 9: place only equipment on the market for which the manufacturer carried out the conformity assessment, check that the technical documentation and the EU declaration of conformity exist and that the CE marking is affixed, keep that declaration for ten years, and put his own name and address on the product, the packaging or the accompanying documents. Note Article 11: an importer who puts the equipment on the market under his own name or trade mark, or modifies it, is considered the manufacturer and carries the full Article 7 obligations. With private label out of Taiwan he is the manufacturer in the sense of the Directive, whatever the purchase contract says.
WEEE (
Directive 2012/19/EU) is the opposite: a registration, and there is no EU-wide register. Each member state keeps its own producer register (Article 16), so it is up to 27 national filings. On equipment brought in from Taiwan the EU importer is himself the 'producer', because Article 3(1)(f)(iii) defines the producer as whoever is established in a member state and places EEE from a third country on that member state's market on a professional basis. The registration and collection duties sit with him, not with the maker in Taiwan. An authorised representative under Article 17 is not a way round that: Article 17(1) covers only producers established in another EU member state, and even for them it is a possibility, not a duty; Article 17(2) binds only distance sellers under Article 3(1)(f)(iv) who are themselves established in a member state. A manufacturer in a third country falls under neither. The one exception is direct distance selling: a Taiwanese supplier who sells online straight to users in a member state is the producer there himself (Article 3(1)(f)(iv)) and has to be registered in the member state he sells to. WEEE is a directive, not a regulation, so the binding rules are in the national transposition; check the national register and the national law per member state, not only the text of the Directive. Components supplied for assembly into someone else's equipment are not themselves electrical equipment; the finished appliance is.