China Enforces Dual Certification for Lithium Battery Exports

Effective April 18, 2026, China’s General Administration of Customs and the Ministry of Industry and Information Technology jointly issued the Lithium Battery Export Compliance Guidance (Pilot Version 2026), mandating UN38.3 transport safety testing reports and IEC 62133-2:2025 safety certification declarations for all lithium-ion and lithium-metal battery exports—including power banks, e-tool cells, and energy storage modules. This requirement directly affects exporters, manufacturers, and supply chain service providers serving global markets.

Event Overview

On April 18, 2026, China’s General Administration of Customs and the Ministry of Industry and Information Technology released the Lithium Battery Export Compliance Guidance (Pilot Version 2026). The guidance states that, effective immediately, all lithium-ion and lithium-metal battery exports—including mobile power banks, electric tool cells, and energy storage modules—must be accompanied at customs declaration by: (1) a UN38.3 transport safety test report issued by a CNAS-accredited laboratory; and (2) a safety certification declaration based on IEC 62133-2:2025. IEC 62133-2:2017 is no longer accepted.

Industries Affected

Direct Exporters and Trading Enterprises

These entities are directly responsible for customs declaration and must submit both required documents before shipment clearance. Non-compliance results in delayed or rejected export declarations. Since the requirement applies to all battery-containing goods—not just bare cells—the scope extends beyond traditional battery traders to OEM/ODM exporters integrating batteries into finished devices.

Cell and Pack Manufacturers

Manufacturers supplying batteries to exporters must now align production and quality documentation with IEC 62133-2:2025—not just internal standards or legacy certifications. Testing cycles may lengthen due to updated test conditions (e.g., revised overcharge, forced discharge, and thermal cycling requirements), potentially affecting delivery timelines for export-bound batches.

Supply Chain and Logistics Service Providers

Fulfillment centers, third-party logistics operators, and freight forwarders handling battery-laden consignments must verify document completeness prior to booking or loading. Inaccurate or incomplete submissions trigger rework, detention, or port rejection—increasing operational friction and cost exposure for clients reliant on just-in-time delivery.

Key Focus Areas and Recommended Actions

Monitor official implementation updates and interpretation notices

The guidance is labeled “pilot version,” indicating potential phased rollout or clarifications ahead. Exporters should track announcements from both the General Administration of Customs and the MIIT, especially regarding transitional arrangements, acceptable lab accreditation scopes, and whether pre-2026 test reports can be grandfathered under limited conditions.

Identify high-risk product categories and target markets

Products with integrated batteries—such as portable medical devices, e-bikes, and consumer electronics—are particularly exposed, given their frequent classification under HS codes subject to stricter scrutiny. Markets with stringent import controls (e.g., EU, US, Japan, South Korea) may impose additional verification layers, making dual-certification compliance non-negotiable for market access.

Distinguish between policy signal and operational readiness

While the rule took effect April 18, 2026, actual enforcement rigor may vary across ports and customs branches during the pilot phase. Companies should treat the mandate as binding but verify local customs office expectations—especially for mixed shipments or battery-subassemblies not yet fully assembled into final products.

Prepare documentation and lab coordination in advance

UN38.3 testing typically requires 4–6 weeks; IEC 62133-2:2025 testing may involve updated protocols not yet widely adopted by all CNAS labs. Exporters should engage accredited laboratories early, confirm reporting formats meet customs’ digital submission requirements, and maintain version-controlled records linking each batch to its corresponding test report and declaration.

Editorial Perspective / Industry Observation

From an industry perspective, this mandate is best understood not as a one-off regulatory adjustment, but as a structural tightening aligned with evolving global transport and product safety expectations. Analysis来看, the shift from IEC 62133-2:2017 to IEC 62133-2:2025 reflects China’s intent to harmonize with international best practices—particularly enhanced requirements for battery management system (BMS) interaction and fault tolerance under abnormal conditions. Observation来看, the simultaneous enforcement of UN38.3 and IEC 62133-2:2025 signals growing convergence between transport safety and end-use safety accountability. Current more appropriate understanding is that this is both a compliance threshold and a de facto benchmark for quality differentiation among Chinese battery suppliers in overseas markets.

In summary, the new requirement establishes a higher, standardized baseline for lithium battery exports from China—impacting documentation workflows, testing lead times, and cross-border supply chain coordination. It does not introduce entirely novel safety concepts, but consolidates and enforces two critical verification points that were previously managed separately or inconsistently. For stakeholders, it is less about reacting to a sudden change and more about institutionalizing rigorous, traceable safety validation across the export lifecycle.

Source: General Administration of Customs of the People’s Republic of China, Ministry of Industry and Information Technology of the People’s Republic of China — Lithium Battery Export Compliance Guidance (Pilot Version 2026), issued April 18, 2026. Note: Implementation details, enforcement consistency, and potential amendments remain under observation.