How to export transformers from the UK to China
Start by matching the model to its Chinese tariff line and checking CCC scope before shipment. MFN duty varies between 0%, 5%, 6% and 10%; import VAT also shapes the buyer's landed cost. Cambridge China Bridge's own staff in China find and check Chinese importers and distributors for UK brands.
Which route fits transformers and power converters?
Start with the model's function and power handling capacity, then agree its Chinese tariff line with the importer. Some ballasts and power supplies appear in the CCC reference table, so establish the certification route before committing stock. Treat distributor supply and cross-border retail as separate proposals: only part of this range appears on the retail import list.
Under HS 8504-8504 (11 subheadings): HMRC recorded £22.1m of UK goods exports to mainland China under 11 HS6 subheadings in 2025 (2024: £37.9m, -41.7%). Exports to Hong Kong under the same codes were £9.9m. January to July 2026: £17.6m against £12.5m in the same months of 2025 (+40.1%).
The largest listed UK export line was 85044095, static converters excluding accumulator chargers, rectifiers and inverters, at £7.1m in 2025. That is a UK export total under HS 85044095, rather than sales of your particular model. Use the line to frame a buyer discussion, then narrow it to the actual equipment and application.
Price against the Chinese tariff line
The listed Chinese tariff lines have the MFN rates below. Liquid dielectric transformers under HS 850423 split between 10% and 6%, while the listed static-converter lines under HS 850440 are 0%. A broad description such as 'transformer' is insufficient for costing; ask the importer's customs broker to confirm the exact Chinese line and applicable rate.
The VAT Law sets a standard import VAT rate of 13%, subject to its exceptions. Import VAT uses the customs value plus customs duty plus any applicable consumption tax as its base. Duty and VAT add to landed cost and therefore shape the price the importer can offer. The importer's customs broker or adviser confirms whether consumption tax applies to this product.
| Chinese tariff line | Rate |
|---|---|
| 85041010 / 85041090 | 10% |
| 85042100 | 10% |
| 85042200 | 10% |
| 85042311 / 85042312 / 85042313 | 10% |
| 85042321 / 85042329 | 6% |
| 85043110 / 85043190 | 5% |
| 85043210 / 85043290 | 5% |
| 85043310 / 85043390 | 5% |
| 85043410 / 85043490 | 10% |
| 8504-8504 (8 subheadings) | 0% |
| 85045000 | 0% |
| 85049011 / 85049019 / 85049020 / 85049090 | 0% |
Resolve CCC scope before accepting the order
The listed CCC reference matches link audio-video power adapters, including chargers, to 8504401990 and 8504401400; computer internal power supplies and adapters or chargers to 8504401300 and 8504401990; and ballasts to 8504101000 and 8504109000. These are product-and-code references, so provide the importer with the intended use and model specification rather than relying on HS6 alone.
The table identifies third-party certification for ballasts and third-party certification or self-declaration assessment, with a marked qualification, for the listed power supplies. Confirm the applicable method with the Chinese authority before shipment. Allow months, not weeks for any required approval; the Chinese authority decides the outcome.
Prepare the UK export declaration
For exports from England, Scotland or Wales, obtain a GB EORI and classify the equipment using the correct UK commodity code. The export declaration needs its value, weight, packaging, destination, transport and invoice and packing-list references. Give the carrier the invoice and any required export licences or certificates. Keep the UK classification distinct from the Chinese tariff line agreed for the model.
Use cross-border retail only for a suitable listed item
The cross-border e-commerce retail import list includes 85044019 for other stabilised power supplies, 85044099 for other static converters not elsewhere specified, and 85049090 for other static-converter and inductor parts. This is partial coverage. Have the proposed retail operator assess the actual item against the list before choosing bonded 1210 or direct 9610.
Listed retail imports through these channels receive personal-use supervision, with first-import licence, registration and filing requirements disapplied except for goods from suspended epidemic areas or under emergency risk handling. Confirm any applicable CCC requirements with the Chinese authority. The overseas seller must appoint a mainland-registered company for customs registration and truthful declarations, with shared civil liability. Consumers must accept the risk notice, and the goods are for personal use and may not be resold.
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Find a buyer who can handle the model
Ask a prospective importer which of your models it wants, which Chinese tariff lines it proposes and how it will resolve CCC scope. Match its proposed channel to the order: distributor stock and personal-use cross-border retail need different arrangements. Settle these points before agreeing the shipment.
Our own staff in China find and check Chinese importers and distributors for UK brands, including companies that have already approached you, before stock is sent or anything is signed. We prepare registration and label work with licensed partners in China. The importer of record and any required cross-border agent remain licensed partners in China; your own filings remain yours. Discuss the model through our export service.
Frequently asked questions
Do all transformers need CCC certification for China?
The CCC reference table names certain power supplies and ballasts. Establish the actual model's scope and assessment method with the Chinese authority; an HS6 heading alone does not settle the question.
What is China's duty on a UK power converter?
The listed Chinese lines under HS 850440 have a 0% MFN rate. Confirm the model's tariff line and applicable rate before pricing; import VAT also affects landed cost.
Can I sell a power supply through cross-border e-commerce?
The retail list includes 85044019 and 85044099, with partial coverage of this range. The item must fit the listed route, and personal-use imports may not be resold.
What should I send the Chinese importer to check CCC scope?
Send the model specification, intended use and proposed Chinese tariff line. The reference table distinguishes audio-video adapters, computer power supplies and ballasts, with different assessment notes.