Vietnam Halts TOPCon/HJT Module Clearance Pending Retest

On July 2, 2026, Vietnam’s Ministry of Industry and Trade (MOIT) signaled an immediate change in import control for TOPCon and HJT modules after recent spot checks found excessive coupled LID and LeTID degradation in multiple batches of Chinese-made products following accelerated aging at 65°C/85%RH. For importers, exporters, buyers, testing-related parties, and delivery planners, this matters not only as a customs delay issue but as a compliance and shipment-release issue tied directly to retesting requirements and timing.

What the MOIT Notice Confirms

According to the information provided, MOIT notified the market on July 2, 2026 that all in-transit imports of TOPCon/HJT modules are to have customs clearance suspended with immediate effect. The trigger was recent sampling in which multiple batches of Chinese-produced modules showed LID and LeTID coupled degradation above the allowed level after accelerated aging under 65°C/85%RH conditions. The notice requires importers to arrange a joint retest for the dual degradation issue through VINAQD or the SGS Hanoi laboratory. The expected average customs clearance delay is 18 to 25 working days.

Where the pressure is likely to appear first

Imported module trade will face a release-risk issue

From an industry perspective, direct trading companies handling TOPCon and HJT module imports are likely to feel the impact first because customs release is now linked to an additional retest step. The main pressure point is no longer only transport or document readiness, but whether the relevant batches can complete the required dual-degradation retest in time. What deserves closer attention is the alignment between shipment schedules, batch identification, and laboratory submission materials.

Procurement and project delivery may need schedule adjustments

Buyers and procurement teams may be affected through delayed receipt rather than through a change in commercial intent. Where delivery windows are tight, the reported 18–25 working day average delay may affect installation sequencing, acceptance timing, and short-term replenishment planning. Analysis shows that procurement teams should pay closer attention to contract delivery terms, batch traceability, and whether technical and quality documents are sufficient to support retest handling without added back-and-forth.

Export-facing manufacturers will need to watch quality documentation more closely

For manufacturers and export-oriented suppliers, the immediate issue is not a newly confirmed product-wide outcome, but a stronger compliance signal around degradation performance under the cited accelerated aging condition. Observably, this raises the practical importance of product records, batch consistency, technical documentation, and any test materials that may be requested by importers or laboratories during the retest process.

Testing and compliance service providers may become a practical bottleneck

Laboratories and compliance-related service parties are also directly implicated because the current requirement specifically points importers to VINAQD or SGS Hanoi for the joint retest. This means the testing stage may become a key operational checkpoint in the import chain. Companies involved in customs handling, document preparation, and conformity support should therefore focus on file completeness, sample coordination, and expected turnaround risk rather than treating the issue as a routine port delay.

What companies should monitor now

Retest readiness and batch-level documentation

Analysis shows that companies should first review whether shipment files, batch references, and technical records are organized well enough to support a retest request without delay. Because the current trigger is tied to specific sampled batches and degradation results under defined conditions, batch-level traceability is likely to matter in practice.

Contract timing, delivery commitments, and buffer planning

Importers, distributors, and buyers should reassess delivery commitments against the stated 18–25 working day average clearance delay. It is more appropriate to understand this as an operational timing risk that can affect handover, inventory planning, and downstream scheduling. Where delivery obligations are tight, teams should pay attention to whether existing timelines still reflect the new clearance reality.

Follow-up wording from authorities and execution practice

What deserves closer attention is whether subsequent official wording clarifies scope, submission standards, or the practical sequence between customs procedures and laboratory retesting. The information provided confirms the suspension and retest requirement, but it does not set out further execution detail in full. Companies should therefore treat any internal assumptions cautiously until more formal implementation language or market practice becomes visible.

Technical files used in tenders, purchases, and after-sales handling

Observably, companies should also review whether tender documents, purchase specifications, quality annexes, and after-sales records adequately address degradation-related performance representation and traceability. This is not because a new universal rule set has been fully detailed in the provided information, but because the current event puts technical substantiation and quality follow-through under closer scrutiny.

Why this looks more like an enforcement signal than a routine delay

Analysis shows that this development is better read as a concrete enforcement signal around product performance verification rather than as a simple customs congestion event. The suspension is tied to a specific compliance concern, a defined aging condition, and a named retest path. At the same time, it is still too early to treat it as a fully settled long-term rule framework based only on the information provided here. Continued observation is warranted because the market still needs to see how consistently the requirement is applied, whether additional clarifications emerge, and how procurement and shipment practices adjust in response.

How to read the current stage of the change

At this stage, the event is most appropriately understood as an already effective control measure with immediate operational consequences for imports in scope, while its broader compliance implications still require observation. The confirmed facts point to a real customs and retesting disruption. The wider market meaning will depend on later execution details, supporting documentation practices, and how buyers, suppliers, and service providers adapt to the requirement in day-to-day transactions.

Basis of this article and points that still need verification

This article is based on the user-provided news title, event date, and event summary. For events of this type, relevant source categories usually include official notices, releases from regulatory authorities, customs or trade administration updates, industry association communications, standard-setting documents, and reporting by authoritative media. No specific official source link was provided in the input, so the original publication link and any subsequent official clarification still need to be verified on an ongoing basis. Further observation should focus on detailed implementation wording, certification and testing practice, tender document changes, market feedback, and how affected companies execute the retest and clearance process in practice.