China Customs’ online service guide describes electronic transmission of declaration data and supporting materials, including the possibility of supplementary electronic declarations when customs asks for clarification. [1]

What “paperless” does not mean

Paperless processing does not remove the importer’s responsibility for truthful, complete and accurate data. Customs may still request invoices, transport documents, licences or other evidence, and a risk-control decision can still lead to inspection or additional review.

Use the correct workflow

  1. Confirm the importer, exporter and customs registration status.
  2. Prepare the electronic declaration and supporting records.
  3. Keep the product description, price, HS code and origin evidence consistent.
  4. Respond through the Single Window or the customs platform if supplementary data is requested.

The exact eligibility, documents and release path should be confirmed with the responsible customs office for the shipment.