A stockist in Deira asked us last month to send the certificate of origin with the proforma invoice, so that customs would charge less. We sent it. He paid the same 5% he would have paid without it.
This happens often. The certificate of origin has a job in a UAE or Oman import file, and reducing duty is not one of them.
Why it cannot work today
Duty is reduced by one thing only: a trade agreement in force between where the goods are made and where they are imported. China and the GCC opened talks on one in July 2004. They have not signed it. No China-GCC agreement is in force today.
So a Chinese forging entering Jebel Ali pays 5% of CIF. Same for Muscat, same for Dammam. The origin does not change the number.
Goods from a GCC member state move duty-free inside the customs union. Goods from the US enter Oman at a reduced rate under the Oman-US FTA. Goods from India enter Oman at a reduced rate under the India-Oman CEPA. Chinese goods have no such route.
The talks are real, and they are long. Five rounds between 2005 and 2009 reached about 97% of goods; the process then stopped for six years. It restarted in 2016 with four rounds in one year and still did not close. The eleventh round was in Guangzhou in October 2024. In December 2025 China’s foreign minister said the conditions were in place for a final step. The GCC has not said the same. As of this month there is a text under negotiation and no agreement to claim.
Then why does everyone still ask for it
Because the certificate of origin is a customs document, not a tax document. Dubai Customs wants to see it in the entry file, and so does Oman. Without it the declaration is incomplete and the consignment sits.
A broker will ask for it on the first day of the file, along with the invoice, packing list and bill of lading.
One step in that file has its own fee and its own deadline: MOFAIC invoice attestation runs AED 150 per invoice on imports above AED 10,000, and it has to be done within 14 days of the declaration.
Two documents that get confused
A preferential certificate of origin comes from an agreement in force. It names the agreement and the tariff line, and the broker enters a preferential code. China has none for the Gulf.
An ordinary certificate of origin is issued by CCPIT or by China Customs. It states that the goods were produced in China. That is all it states. Customs reads it, ticks the box, and then charges 5%.
Same paper, same stamp, different legal weight. The first changes the rate. The second does not.
What the 5% actually comes to
Duty is calculated on CIF, not on your purchase price. If you bought ex-works at USD 40,000 and the freight and insurance add USD 3,000, duty is charged on USD 43,000: USD 2,150. VAT is then charged on CIF plus duty, 5% of USD 45,150: USD 2,257. The two together are about 10.25% of CIF.
No certificate changes either line.
What we send with the goods
Commercial invoice, packing list, bill of lading, certificate of origin, and the EN 10204 3.1 material test certificate against the heat number. The certificate of origin comes from CCPIT and is issued against the same invoice we declare.