Short answer
This answer explains do imported cryptography products need special review? in practical terms: the trigger to check, the evidence to keep, and the follow-up decision that should be owned before launch or change approval.
Do not rely on a generic import classification alone. Link customs, product, supplier, cryptography, and CII-use analysis before China release.
Use for cryptography categories, commercial cryptography development and management, product/service controls, CII use, import/export context, penalties, and 1 January 2020 effective date.