Statement on origin (EU-Vietnam FTA)

Continuing on the topic started by Samuel Draginich in the article "EVFTA: proof of origin when consignments are split in a country of transit", let us take a closer look at the statement on origin - the only proof of EU preferential origin that might be issued under the EU-Vietnam FTA (EVFTA) - and the commercial document on which it may be made out; also in the case of splitting of consignment in a country of transit.