Requesting FTA Origin Documents from a Korean Supplier? Build a Reviewable Shipment File

Practical guide · Sources checked 8 November 2026

To request FTA origin documents from a Korean supplier, identify the destination, agreement and invoice lines, then ask the responsible document contact to match the proof to the goods shipped. Keep corrections, supporting evidence and unresolved eligibility questions separate. A supplier’s assurance that goods are “made in Korea” is not a substitute for reviewing the applicable origin rules.

For agreement-specific EU requirements, see our Korea–EU origin declaration guide. This article focuses on the supplier follow-up and shipment review file across destinations.

Your Korean supplier says the origin certificate has been sent. Your customs broker replies that the document does not cover the goods being imported. The shipment is approaching, but the email exchange is going in circles.

Start by making the request specific to the shipment. Identify the agreement, products and unanswered questions before asking the supplier for another document.

This guide focuses on organizing the supplier follow-up. The applicable origin rules and import claim should be reviewed by the responsible importer and customs professional.

1. Tell the supplier which agreement and shipment you mean

A request for an “FTA certificate” leaves too much open. Provide:

• Import destination and intended trade agreement
• Purchase order and current invoice number
• Products and invoice lines requiring review
• Tariff classification being used for the import review
• The document or clarification requested by your broker
• The required date and reason for that date

Document requirements vary by agreement. For example, EU–Korea preferential origin claims use an exporter’s origin declaration. An EUR.1 is not accepted under that agreement. The U.S.–Korea FTA does not require a single official certification form, but prescribed information is required. A document suitable for one destination should not be assumed suitable for another. European Commission guidance, U.S. CBP certification guidance

Send the broker’s exact question with the request. If the tariff classification is disputed, provide product specifications and have the relevant specialists resolve it rather than asking the supplier to copy a preferred code.

From a broker’s question to a reviewable supplier response

1. 1 · Define the claimName the destination, agreement and invoice lines under review.
2. 2 · Reach the document ownerAsk the Korean exporter to route technical questions to the producer.
3. 3 · Return an issue recordSeparate corrected files, supplier explanations and unresolved points.

2. Identify who can answer the origin question

Your sales contact may be able to send invoices but may not hold the manufacturing records supporting an origin statement.

Ask who prepares export-origin documents and who can obtain information from the producer. Where a trading company supplies goods from several factories, record which producer is associated with each product.

Korea’s domestic supplier-origin confirmation process supports the flow of origin information from suppliers or producers to exporters. Such supporting documentation needs to be distinguished from the proof required for the destination’s import claim. Korea Customs Service explanation

The practical objective is a clear route for questions: buyer’s import team, Korean exporter’s document contact, and the producer where necessary.

3. Match each document to the goods actually shipped

Create a review sheet with one row per invoice line. Include the part number, description, quantity, supplier, document received and open question.

Look for differences that could prevent the reviewer from connecting the document to the goods:

• A certificate refers to an earlier invoice.
• A document uses a product-family name rather than the supplied model.
• The purchase order and invoice show different part-number suffixes.
• Some invoice lines have no clear origin coverage.
• The document names a company whose role is unexplained.
• A period-based document does not clearly cover the relevant shipment.

Treat these as questions for the responsible issuer. Do not fill in missing origin statements, signatures or authorization details yourself.

Under CBP’s U.S.–Korea guidance, the goods description should be sufficiently detailed to relate the certification to the invoice and tariff nomenclature. That is also a useful practical test when organizing the file: can the reviewer follow the document back to the actual item? CBP required data elements

Hypothetical example: trace invoice line 2

1. Goods imported · P-40BInvoice INV-EXAMPLE lists P-40B; the current packing list identifies the shipment.
2. Supplier file · P-40The origin document refers to P-40. Ask what the B suffix changes.
3. Reviewer’s questionDoes the issued proof cover P-40B under the intended agreement? Keep the answer with the file.

4. Separate document corrections from eligibility questions

An incorrect invoice reference may require a corrected document. An unexplained origin claim requires a substantive answer about the goods and the applicable rules.

Use a numbered issue list:

1. Document: [filename and date]
2. Affected product: [invoice line and part number]
3. Issue: [specific inconsistency]
4. Requested response: [correction, explanation or specialist review]

Hypothetical example:

“The document lists model P-40, while invoice line 2 lists P-40B. Please confirm whether the origin documentation covers P-40B and provide a corrected document or the relevant explanation.”

Avoid instructions such as “please change the origin to Korea.” Ask the responsible exporter to confirm what it can support.

Choose the next action, not the desired answer

Can the issue be corrected as a fact, or does it require an eligibility review?

1. Clerical reference errorRequest a corrected document from the responsible issuer. Retain the version trail.
2. Coverage cannot be tracedAsk for product mapping and shipment-period clarification. Keep the line open.
3. Origin claim unsupportedEscalate the evidence question to the importer’s adviser before relying on tariff savings.

5. Agree how supporting information will reach the reviewer

Manufacturers may be reluctant to share detailed costs, bills of materials or supplier information. Explain who needs the information, why it is needed and whether a suitable confidential submission route is available.

Do not promise that a brief supplier assurance will always satisfy customs. The evidence requirements depend on the agreement and the claim. For U.S.–Korea claims, CBP specifically explains that relying on an exporter’s or producer’s information does not remove the importer’s responsibilities. CBP importer-responsibility guidance

Record what the supplier can provide and send any unresolved evidence question to your import adviser before relying on the expected tariff saving.

6. Send one consolidated supplier request

7. Close the file with a recorded outcome

Keep the current commercial documents, origin proof, supplier answers and review outcome together. Mark superseded versions clearly.

For repeat orders, ask what changed. A new producer, revised product or different destination may require a fresh review. A previously accepted shipment is useful history, but it does not resolve the facts of the next one.

Korea Ops Desk can follow up with the Korean supplier’s document contact, organize the questions and return a clear English record of the answers received. Send the current shipment documents and your broker’s specific request so the communication can focus on the points holding up the review. Final origin and customs-treatment decisions remain with the responsible parties and authorities.

8. Frequently asked questions

Is any Korean certificate of origin sufficient for FTA treatment?

No. Check the agreement, required proof and goods covered. A general country-of-origin certificate should not be treated as interchangeable with the proof required for a preferential claim.

Should we ask the supplier to change the origin statement?

Ask the responsible issuer to verify and support its statement. Identify the discrepancy precisely, but do not dictate an unsupported origin claim or edit another party’s signed certification.

Can a Korean follow-up service approve our customs claim?

Supplier follow-up can obtain answers and organize documents. It does not establish legal eligibility, certify origin or replace the importer’s responsibilities and its customs adviser’s review.

24/7 inquiries

Need a clear answer from the Korean document contact?

Share the supplier’s details, the invoice lines involved and your broker’s exact question. Korea Ops Desk can follow up in Korean and organize the answers and remaining gaps in English.

Discuss it on WhatsAppSend your request

For the initial brief, email colin@koreaopsdesk.com. See supplier contact and follow-up support. Inquiries are welcome 24/7; work and timing are agreed separately.

Official sources

• Korea Customs Service: supplier-origin confirmations
• European Commission: EU–South Korea FTA
• U.S. CBP: Korea FTA FAQs
• U.S. CBP: required certification data elements

Sources checked: 8 November 2026. Requirements depend on the agreement and transaction. Confirm the applicable source text and obtain appropriate professional review before relying on a claim.