Forced Labor Enforcement Just Crossed a Border: What CBP’s Serbia Copper WRO Means for Your Supply Chain
Key Takeaways
- CBP continues to chase the company, not just the country. Zijin’s parent was already on the UFLPA Entity List for forced labor in China; this Withhold Release Order (WRO) hits its Serbian copper operation on a separate evidentiary basis. Moving production to a “friendly” country does not move you out of CBP’s reach.
- Copper just joined the enforcement map. Forced-labor detentions are no longer concentrated in apparel, solar, and cotton. If you import copper—or anything containing it—your supply chain is now in scope, and most copper-reliant importers have done zero forced-labor due diligence.
- The burden is on you, and it lands the moment your shipment is detained. Under a WRO, there is no notice and no grace period. You either prove your goods are clean by detailed documentary evidence, or you export or destroy them.
On June 16, 2026, U.S. Customs and Border Protection (CBP) issued a Withhold Release Order against copper and copper products manufactured in Serbia by Serbia Zijin Copper D.O.O.—the fourth WRO of Fiscal Year 2026 and the second targeting a Serbian operation in roughly six months. Effective immediately, CBP personnel at every U.S. port of entry will detain shipments of copper and copper products from this company.
If you read that as another distant enforcement headline, you are missing the part that should concern you. This […]




