What should a Turkish importer do when a foreign supplier moves production to another country? Learn when origin documents, supplier declarations, preferential treatment and customs declarations must be reviewed.

A Turkish importer may purchase the same product from the same foreign supplier for years. The model number, brand, price and commercial invoice may remain almost identical.

However, one important fact may change:

The supplier moves production to another country.

For example:

Previous production: Germany
New production: China

or:

Previous production: Italy
New production: Türkiye’s FTA partner

or:

Previous production: Country A
New production: Country B.

This change can materially affect customs origin, preferential treatment, additional customs duties, trade-defense measures and the documentation supporting future Turkish import declarations.

The safest rule is straightforward:

A production-country change should trigger an immediate customs-origin review before the next shipment is declared.

Turkish Customs distinguishes preferential and non-preferential origin, and origin can directly affect both customs duties and commercial-policy measures. A Certificate of Origin generally establishes non-preferential origin, while documents such as EUR.1 and supplier declarations serve different preferential-origin functions.

1. Does Changing the Production Country Automatically Change Customs Origin?

Not necessarily.

The physical production location is highly relevant, but customs origin must still be determined according to the applicable origin rules.

Suppose a supplier moves only final assembly from Country A to Country B while most manufacturing continues in Country A.

Whether Country B becomes the new origin depends on:

• Manufacturing operations;
• Product classification;
• Materials used;
• Applicable preferential or non-preferential origin rules;
• Product-specific requirements;
• Cumulation, where relevant.

Therefore, the importer should not simply replace one country name with another.

2. Why Must the Turkish Importer Care?

Origin may determine:

• Preferential customs duty;
• Additional customs duty;
• Anti-dumping measures;
• Safeguard measures;
• Other origin-based trade-policy measures.

The Ministry of Trade expressly describes origin as the economic nationality of goods and notes its importance for customs duties and commercial-policy measures.

A factory relocation can therefore change the total landed cost of the product.

3. The Same Supplier Does Not Mean the Same Origin

This is one of the most common compliance mistakes.

Suppose:

Supplier: ABC Global Ltd.

The company previously manufactured Product X in Poland.

It now manufactures Product X in Vietnam.

The commercial supplier remains ABC Global Ltd.

But this does not mean the historical Polish-origin documentation can automatically continue to be used.

Supplier identity and product origin are separate questions.

4. The Same Product Code Does Not Guarantee the Same Origin

The supplier may continue using:

• Same SKU;
• Same model;
• Same trademark;
• Same catalogue number;
• Same commercial description.

Yet origin may change because the manufacturing structure changed.

Customs compliance systems should therefore not determine origin solely from the product master code.

5. First Ask What Exactly Changed

When the supplier announces a production transfer, determine whether it involves:

complete manufacturing relocation

partial production relocation

final assembly relocation

component sourcing change

contract manufacturer change

or

packaging and distribution relocation only.

These scenarios can produce different origin results.

6. Packaging Location Is Not Necessarily Production Origin

Suppose goods continue to be manufactured in Country A but are shipped to Country B for:

• Packaging;
• Labeling;
• Storage;
• Consolidation;
• Export.

The fact that invoices or shipments now originate from Country B does not automatically establish Country B origin.

The underlying production must be examined.

7. A New Factory Requires a New Origin Analysis

The importer should obtain information concerning:

• New factory address;
• Manufacturer identity;
• Manufacturing process;
• Components;
• Raw-material sources;
• Bill of materials;
• Production stages.

The previous origin analysis should not simply be copied.

8. Preferential and Non-Preferential Origin Must Be Reviewed Separately

A factory move can affect both.

Non-Preferential Origin

This may matter for origin-based trade-policy measures, additional customs duties and similar measures.

Preferential Origin

This determines whether the product satisfies the rules required to benefit from a preferential trade arrangement.

A Certificate of Origin cannot simply substitute for a supplier declaration because the two documents serve different origin functions.

9. Existing Supplier Declarations May No Longer Be Reliable

Suppose a long-term supplier declaration was issued based on production in Country A.

The supplier later moves manufacturing to Country B.

The importer should determine whether that existing declaration remains valid for goods produced after the change.

Do not continue using an old declaration simply because its stated calendar validity period has not yet expired.

10. EUR.1 Eligibility May Change

A product previously qualified for preferential origin.

After production moves, it may no longer satisfy the relevant rule.

Alternatively, the new production structure may qualify under a different preferential arrangement.

The importer should verify eligibility before claiming preferential treatment on subsequent shipments.

11. A.TR Must Not Be Confused With Origin

Where EU trade is involved, this distinction is particularly important.

The Ministry confirms that A.TR demonstrates free-circulation status rather than origin.

Therefore:

A.TR issued after the production move

does not automatically prove:

EU origin.

12. Update the Product-Origin Master Data

Companies using ERP or customs-management systems should immediately review:

• Country-of-origin field;
• Manufacturer field;
• Factory field;
• Preferential-origin status;
• Origin document requirements;
• Applicable customs measures.

Old master data can otherwise cause repeated incorrect declarations.

13. Notify the Customs Broker

The importer should not assume that its customs broker knows the supplier has changed factories.

Provide written instructions identifying:

• Product;
• Previous production country;
• New production country;
• Effective shipment date;
• Revised origin position;
• Revised documentation.

This creates a clear compliance record.

14. Establish a Cut-Off Date

One practical problem is distinguishing old-factory inventory from new-factory production.

For example:

Factory transfer date: 1 July

but

old inventory continues shipping until: 15 August.

Do not assume every shipment after July automatically has the new origin.

Create a product- and batch-specific cut-off system.

15. Use Serial or Batch Numbers Where Possible

For products with traceability systems, connect:

serial number

or

batch number

to:

manufacturing factory

and

production date.

This can prevent origin confusion during the transition.

16. Obtain New Manufacturer Confirmation

Request written confirmation identifying:

• Manufacturing entity;
• Factory;
• Production country;
• Effective production date;
• Products concerned.

This should be retained in the customs compliance file.

17. Obtain a New Bill of Materials

A factory move frequently changes suppliers.

The product may look identical but use:

• Different motors;
• Different steel;
• Different electronics;
• Different subassemblies.

These changes can alter preferential-origin calculations.

18. Recheck the HS Classification

A factory relocation does not normally change classification merely because production moved.

However, the new factory may produce a technically different version of the product.

Confirm that the historical HS code remains correct.

19. Reapply the Product-Specific Origin Rule

Once classification is confirmed, identify the applicable origin rule for the new production structure.

The rule may involve:

• Tariff classification change;
• Maximum non-originating material value;
• Specific processing;
• Combination of criteria.

Do not assume the old origin calculation remains valid.

20. Review Cumulation Again

The old factory may have benefited from cumulation that is unavailable to the new factory.

Conversely, the new factory may have access to a different cumulation structure.

This issue is especially important in 2026 because the revised Pan-Euro-Mediterranean origin framework has been implemented progressively across Turkey’s preferential arrangements.

21. 2026 PEM Rules Require Country-Specific Review

In 2026, importers should not rely on an old general PEM assumption.

The Ministry has continued updating the applicable matrix as individual arrangements transition to revised rules.

Therefore, after a production-country change, verify:

production country

→ export country

→ destination Turkey

→ applicable agreement

→ rule set

→ cumulation eligibility.

22. Review Certificates of Origin

Where a Certificate of Origin is required for the particular import measure, obtain documentation consistent with the new production structure.

The Ministry states that origin documentation is required in specified cases involving origin-based commercial-policy measures, additional customs duty and other financial obligations.

Do not continue presenting historical origin documents for newly manufactured goods.

23. Electronic Certificates Do Not Remove the Need for Accuracy

Turkey recognizes properly issued electronic origin and movement documents from countries that have notified the Ministry under the relevant system.

However, electronic issuance does not eliminate substantive origin requirements. The Ministry’s August 2026 update confirms that electronically issued documents remain subject to Customs controls.

24. Check Additional Customs Duty

A new origin may produce a different additional customs duty outcome.

Before the first shipment from the new factory, calculate:

old landed customs cost

versus

new landed customs cost.

A sourcing decision that appears commercially attractive may become expensive after origin-dependent duties are considered.

25. Check Anti-Dumping Measures

This can be particularly serious.

Suppose production moves into a country covered by an anti-dumping measure applicable to the product.

The importer should identify this before shipment.

Conversely, moving production out of a covered country does not automatically eliminate anti-dumping exposure unless the new origin is legally established.

26. Do Not Use Factory Relocation to Artificially Change Origin

If most manufacturing remains in a country subject to a trade measure and goods undergo only minor operations elsewhere, Customs may question the claimed new origin.

The importer should understand the actual manufacturing transformation.

27. Request Production Flow Documents

Obtain a process map showing:

raw materials

→ components

→ subassembly

→ final assembly

→ testing

→ packaging.

Identify where each stage occurs after the relocation.

28. Compare the Old and New Production Processes

Prepare:

Issue	Old Factory	New Factory
Country	Country A	Country B
Manufacturer	Company A	Company B
Main components	Existing sources	New sources
Assembly	Country A	Country B
Testing	Country A	Country B
Preferential status	Previous analysis	Reassess

This makes the customs impact visible.

29. Check the Commercial Invoice

The commercial invoice should not contain origin information inconsistent with the updated production structure.

But remember:

invoice country is not necessarily origin country.

The seller may remain unchanged even after production moves.

30. Check Product Labels

Review:

• Product marking;
• Packaging;
• Technical labels;
• Manuals.

Inconsistent origin references can trigger Customs questions.

31. Check Purchase Contracts

Supply agreements may contain an origin warranty.

The supplier may have promised:

“Goods shall be of Country A origin.”

If production moves to Country B, the supplier may need contractual approval before changing the sourcing structure.

32. Require Advance Notification of Factory Changes

Future contracts should require the supplier to notify the importer before changing:

• Production country;
• Manufacturing facility;
• Major component sources;
• Preferential-origin status.

The importer should have enough time to conduct customs analysis before shipment.

33. Do Not Wait Until the Goods Reach the Port

Origin review should occur before shipment.

Once goods arrive in Turkey, the importer may face:

• Unexpected duty;
• Storage charges;
• Customs delays;
• Customer delivery problems.

Pre-shipment review is significantly safer.

34. What About Goods Already in Transit?

If the importer learns of the factory change while goods are already moving to Turkey, immediately determine:

• Where those goods were manufactured;
• When they were produced;
• Which factory produced them;
• Which origin documentation accompanies them.

Do not assume the documents are correct simply because they were prepared before the importer learned of the change.

35. What If Goods Have Already Been Imported?

If the importer discovers that several recent declarations used old origin information after production had already moved, conduct an internal review immediately.

Identify:

• Affected declarations;
• Products;
• Dates;
• Origin documents;
• Potential duty difference.

Then assess the appropriate corrective strategy.

36. Do Not Automatically Amend Every Historical Declaration

First establish the facts.

Some shipments may still consist of inventory manufactured at the old factory.

Others may have been produced at the new facility.

Use production dates, batch numbers and factory records to identify the actual affected population.

37. Consider Voluntary Correction Before Customs Detection

Where the review identifies incorrect declarations, determine whether Turkish customs legislation provides a corrective mechanism relevant to the circumstances.

This analysis should occur before making an unstructured admission to Customs.

38. Additional Duty and Penalty Are Separate Questions

If the new origin produces higher customs liability, the importer may face an additional assessment.

Whether an administrative penalty also applies requires separate analysis.

Relevant facts may include:

• When the importer learned of the factory move;
• What the supplier disclosed;
• Whether existing documentation appeared valid;
• How quickly the importer acted after discovery.

39. Supplier Responsibility May Be Significant

If the foreign supplier changed production without informing the Turkish importer and continued supplying obsolete origin documents, review potential contractual liability.

Relevant provisions may include:

• Origin warranties;
• Customs compliance warranties;
• Notification obligations;
• Indemnification;
• Cooperation obligations.

40. Preserve Supplier Communications

Collect communications concerning:

• Factory relocation;
• Production dates;
• Origin statements;
• Certificates;
• Component sourcing changes.

These may become important in both a Customs investigation and supplier-recovery claim.

41. Update Internal Compliance Procedures

The procurement department may learn about a factory relocation months before the customs department.

Create an internal notification rule:

Procurement learns of factory change

→ Customs/compliance is automatically notified

→ imports are reviewed before next shipment.

This closes a common compliance gap.

42. Review Every Affected Product Family

A supplier may relocate only certain product lines.

Do not change the origin of the supplier’s entire catalogue.

Review:

product

→ factory

→ production period

→ origin.

43. Keep Historical Origin Records

Do not overwrite old origin data in the system without retaining history.

Customs may later ask why:

Product X was declared Country A origin in March

but

Country B origin in September.

Maintain evidence explaining the production transition.

44. Create an Origin Change File

For every significant production relocation, retain:

• Supplier notification;
• Old factory information;
• New factory information;
• Effective date;
• Manufacturing flow;
• Bill of materials;
• Origin analysis;
• Revised supplier declarations;
• Revised certificates;
• Internal customs instructions.

This file can be extremely valuable during a post-clearance audit.

45. Immediate Action Plan

When a foreign supplier changes production country:

Stop automatic reliance on historical origin data

→ identify the new factory

→ establish the production-change date

→ separate old inventory from new production

→ confirm HS classification

→ obtain the new bill of materials

→ recalculate preferential origin

→ review non-preferential origin

→ review cumulation

→ check additional customs duty

→ check anti-dumping and other measures

→ obtain revised origin documents

→ update ERP/customs master data

→ notify the customs broker

→ review already-imported shipments.

25-Point Production Country Change Checklist

1. Product.
2. Product code.
3. HS classification.
4. Foreign supplier.
5. Previous manufacturer.
6. Previous factory.
7. New manufacturer.
8. New factory.
9. Previous production country.
10. New production country.
11. Effective production date.
12. Old inventory.
13. Batch or serial numbers.
14. Manufacturing flow.
15. Bill of materials.
16. Component origins.
17. Preferential-origin rule.
18. Non-preferential origin.
19. Cumulation.
20. Supplier declaration.
21. EUR.1 or other preferential proof.
22. Certificate of Origin where required.
23. Additional customs duty.
24. Trade-defense measures.
25. ERP and customs declaration update.

Frequently Asked Questions

1. Must a Turkish importer react when its foreign supplier changes production country?

Yes. The change should trigger a customs-origin review because origin can affect customs duties, preferential treatment and trade-policy measures.

2. Does moving the factory automatically change origin?

Not necessarily. The actual manufacturing operations and applicable origin rules must be analyzed.

3. Can the importer continue using an old supplier declaration?

It should not assume so. If the declaration was based on the previous production structure, its applicability to goods manufactured after the relocation must be reassessed.

4. Must the Certificate of Origin be reviewed?

Yes, where such a certificate is required or relied upon. The document must correspond to the actual origin position of the goods.

5. Does an A.TR prove that goods manufactured at the new EU factory are EU-origin?

No. A.TR proves free-circulation status rather than origin.

6. What if the supplier changes only the packaging country?

A packaging-country change does not automatically mean the customs origin has changed. The actual production operations must be reviewed.

7. What if the importer learns about the factory move after several shipments?

The importer should identify the affected declarations using production dates, batches, serial numbers and factory records, then assess any required corrective action.

8. Can a production-country change affect anti-dumping duty?

Potentially yes. If the product and new origin fall within an applicable trade-defense measure, the customs consequences may change significantly.

9. Can the supplier be responsible for additional customs costs?

Potentially, particularly where it breached origin warranties, failed to disclose the production change or supplied inaccurate origin documentation. The contractual terms and governing law must be reviewed.

10. What is the safest compliance rule?

Any change in production country, factory or material sourcing that could affect origin should be communicated to the Turkish importer’s customs team before the next shipment, followed by a documented reassessment of origin and all supporting customs documents.

Client-Focused Legal Support for Production Country and Origin Changes in Turkey

Changes in international manufacturing structures can create customs issues involving:

Factory relocation

Production-country changes

Preferential origin

Non-preferential origin

Supplier declarations

EUR.1 documentation

Certificates of Origin

Additional customs duties

Anti-dumping measures

Post-clearance corrections

and customs penalties.

Fırat Fesih Kaya Law Office assists foreign manufacturers, multinational companies and Turkish importers when changes in production location affect the customs treatment of goods imported into Turkey.

Lawyer Fırat Fesih Kaya provides legal assistance in reviewing new manufacturing structures, origin rules, bills of materials, supplier declarations and customs documentation, assessing historical import exposure, responding to post-clearance investigations and challenging additional assessments and administrative penalties where appropriate.

Phone: +90 312 434 22 22
Mobile: +90 532 769 22 22
Email: info@firatfesihkaya.av.tr
Address: Mevlana Boulevard No:221, Yıldırım Tower, Office No:148, 06520 Balgat, Çankaya, Ankara, Turkey