As the situation in the Middle East continues to disrupt global supply chains, U.S. import regulations have suddenly tightened across the board. Recently, U.S. Customs and Border Protection (CBP) launched a targeted inspection operation codenamed "5H" targeting imported goods. Thousands of export containers from China have been detained due to documentation issues, with some shipments even facing the risk of forced return, sparking significant concern within the cross-border e-commerce and foreign trade industries.

   Sudden Escalation of 5H Inspections   

       It is understood that the core of this operation is the so-called "5H inspection." The full name of 5H is "Entry Processing HOLD," which essentially is a formal detention instruction issued by U.S. Customs within its filing system. Once a container is marked with a 5H status, the system immediately freezes operations such as container pick-up and transshipment for that shipment, and associated port fees begin to accrue. Unlike traditional physical inspections, the 5H model is characterized by a "documents first, physical inspection second" approach. Customs first conducts multiple rounds of cross-verification on documents submitted by the enterprise, including commercial invoices, packing lists, manifest information, and importer qualifications. Only goods with completely compliant documentation after review are released. Once an anomaly is detected, the shipment proceeds to a physical inspection phase, and based on the findings, measures such as tax supplementation, destruction, or return may be taken.

       According to industry insiders, this specific operation is led by a newly formed rapid document review team at U.S. Customs, with noticeably stricter enforcement standards and a depth of review far exceeding previous levels.

   Review Scope Covers the Entire Trade Chain   

       Unlike previous routine spot checks focusing solely on customs declaration documents, this round of action adopts a "penetrating supervision" model. Customs' scope of verification has extended from single customs declaration documents to the entire trade chain—potentially including information such as purchase contracts from domestic manufacturers, transportation documents, U.S. importer qualifications, and end-sales records, all of which may be subject to review. In practice, Customs focuses on verifying the following types of information:

• Whether the product description is accurate

• Whether the declared value aligns with market prices

• Whether the consignee and importer information is authentic and consistent

• Whether the bond guarantee qualification is valid

       If obvious contradictions or data anomalies exist between documents, the system will directly trigger a risk alert. Currently, popular Chinese export categories such as furniture, electronic products, clothing, and outdoor goods have all been included in the scope of key inspections.

   Thousands of Export Containers Subject to Forced Return   

       Since early February 2026, the 5H inspection operation initiated by U.S. Customs and Border Protection (CBP) has been fully escalated, implementing targeted strict controls on imported Chinese goods. Core ports such as Los Angeles and Long Beach have become the hardest-hit areas.

       Industry data shows that since the launch of this targeted inspection operation, the overall inspection rate has surged significantly from the previous 3% to around 10%. Meanwhile, inspection rates at the ports of Los Angeles and Long Beach have skyrocketed to over 30%, nearly tripling compared to before! In just January-February 2026, thousands of Chinese containers were forced to be returned due to failed inspections, with some freight forwarding companies facing over 1,000 returned containers. A freight forwarder in Shenzhen had 69 containers detained at once, while an enterprise in East China is mired in a return crisis involving 200-300 containers.

   Triggering Warehouse Meltdowns, Seller Losses Exceed RMB 200 Million   

       Industry insiders point out that the losses brought by the 5H inspections are often far more complicated than just returns. Once a container enters the inspection status, port storage fees, container demurrage charges, inspection handling fees, and agency fees accumulate daily, ranging from hundreds to thousands of US dollars. If it's only a document review, it typically takes 1 to 3 working days; if it escalates to a physical inspection, the cycle could extend to a week or even longer. One seller reported that a batch of goods valued at over RMB 200,000 was delayed at port for a week due to inspection, and after various fees were added, almost all profit was eroded, ultimately turning into a "negative asset."

       At the same time, the 5H inspections have become the final straw that broke the camel's back for non-compliant overseas warehouse service providers. Recently, multiple incidents of overseas warehouses abruptly closing and operators absconding have been reported around Los Angeles. In one extreme case, a warehouse owner in their 20s allegedly sold off all clients' inventory and disappeared with the money. Reports indicate that near the Port of Long Beach in Los Angeles, several warehouses have been repossessed by landlords, sealed with notices on their doors, with hundreds of containers holding Chinese sellers' goods sitting in their parking lots.

       According to incomplete industry statistics, this overseas warehouse storm has affected over 2,000 Chinese cross-border sellers, involving goods with a total value exceeding RMB 200 million. Among them, one seller suffered a single loss as high as RMB 15 million, while small and medium-sized sellers commonly incurred losses ranging from tens of thousands to hundreds of thousands of RMB, with years of hard work wiped out overnight.

   The Industry May Face a Compliance-driven Reshuffle   

       It is worth noting that the 5H inspection typically does not issue a public notice to cargo owners. Sellers need to confirm the status of their containers through their freight forwarders, customs brokers, or system queries. If not detected in time, demurrage and port charges can accumulate rapidly.

       Industry analysis suggests that this strict enforcement by the U.S. is not a temporary measure but a systematic overhaul targeting long-standing trade compliance issues. As regulatory scrutiny continues to escalate, the compliance threshold for cross-border logistics on the U.S. route is rapidly increasing. The industry widely anticipates that the first quarter of 2026 could become a significant "reshuffle period" for the U.S.-bound logistics sector. Logistics models reliant on grey-area operations will face greater survival pressure. For cross-border sellers, establishing a genuine and compliant trade chain and standardizing declaration processes may become fundamental prerequisites for entering the U.S. market in the future.