What is DI and TI documents in GUOT? Which one is needed for ECTN?

There are two GUOT documents DI (Douane d’importation) and TI (Transport d’importation). Importer in Rep Congo has to issue both certificates.

For ECTN certificate, Only TI (Transport d’importation) has to be declared by the applicant.

Goods value and freight value has to be same on guot document and the invoice.

GUOT & TI DOCUMENT SAMPLE