Lithium Battery Export Compliance Tightening: 2026 Dangerous Goods Declaration Operating Guide

With the rapid development of the global new energy industry, lithium batteries and their application products have become one of the most active categories in cross-border e-commerce and international trade. However, as dangerous goods, lithium battery export compliance requirements are tightening at an unprecedented pace. The new Maritime Commerce Law officially took effect in May 2026, with higher penalties for dangerous goods concealment and misdeclaration, and shipper abandonment fee responsibilities have been further clarified. This article outlines the latest dangerous goods declaration rules and practical operating points for freight forwarding companies, exporters, and cross-border e-commerce sellers.

I. Background of Tightening Regulation

In recent years, multiple lithium battery transport safety incidents worldwide have attracted great attention from regulatory authorities in various countries. The International Maritime Organization (IMO) has repeatedly amended lithium battery transport provisions in the International Maritime Dangerous Goods Code (IMDG); China's customs authorities have also continuously increased the inspection rate for exported lithium batteries, and cases of detention and administrative penalties due to false declarations and omissions are common.

At the same time, the new Maritime Commerce Law officially took effect in May 2026, and abandonment fees being borne by the shipper has become a hard provision. Once goods are detained or shipowners seek compensation due to improper dangerous goods declaration, shippers not only face heavy fines but may also bear chain losses such as port demurrage and cargo abandonment. This is a heavy blow to export enterprises accustomed to "playing edge balls."

II. IMDG Rules: Core Requirements for Lithium Battery Declaration

IMDG rules are the cornerstone of lithium battery maritime compliance, and the 2024 edition (41-24) has been fully implemented across the global shipping industry. The following key points must be mastered by exporters and freight forwarding companies:

1. Packaging Requirements

Lithium battery exports must comply with Type II packaging standards, specifically:

• UN3480 (Lithium ion batteries) and UN3090 (Lithium metal batteries): Must use UN specification packaging boxes with the correct United Nations number marked on the packaging.
• Packaging must pass safety certifications such as drop tests and stacking tests.
• Sufficient cushioning material must be placed between batteries and between batteries and packaging walls to prevent short circuits.

2. Marking and Labels

Every package must clearly bear:

• Correct UN number (e.g., UN3480)
• Dangerous goods class label (Class 9 miscellaneous dangerous goods label)
• Lithium battery mark (rectangular mark with horizontal red border)
• Complete consignor and consignee information

3. Documentation Requirements

The following documents must be submitted with the cargo for export:

• Shipper's Declaration of Dangerous Goods: Signed by the shipper, indicating accurate net weight and watt-hour capacity (Wh).
• Dangerous Goods Package Certificate (Airworthiness Certificate): Issued by a certified packaging manufacturer, certifying that the packaging meets IMDG requirements.
• Packing Certificate: Showing battery arrangement, insulation measures, and box reinforcement methods.
• Sea Freight Booking Note: Indicating dangerous goods information for shipping company space booking review.

4. Watt-Hour Limits and Exceptional Clauses

Different categories of lithium batteries are subject to different watt-hour limits:

| Lithium Battery Type | General Cargo | Forbidden on Passenger Aircraft |
|----------|---------|-------------|
| Lithium ion battery (PI965) | ≤100Wh/cell | >100Wh |
| Lithium metal battery (PI968) | ≤2g lithium/cell | >2g lithium |

Lithium batteries exceeding the above limits must be declared as cargo aircraft transport, with significantly higher freight costs than passenger aircraft belly cargo.

III. Compliance Key Points by Transport Mode: Air Is Strictest, Maritime Follows, Rail Is More Flexible

Air Transport Compliance

Air transport is the most strictly regulated transport mode for lithium batteries. The International Civil Aviation Organization (ICAO) and International Air Transport Association (IATA) jointly issued "Dangerous Goods Regulations" (DGR) are the core basis for air lithium battery transport.

Key requirements include:

• Lithium batteries must undergo UN38.3 testing (covering eight tests including altitude simulation, thermal shock, vibration, impact, bending, overcharge, short circuit, etc.) and provide a valid test summary report.
• The rated energy of lithium batteries in each package must not exceed: 100Wh for lithium ion batteries, 2g lithium content for lithium metal batteries.
• Packaging must comply with IATA PI965-970 provisions and bear Class 9 labels and lithium battery handling labels.
• Passenger aircraft are prohibited from transporting pure lithium battery goods (PI965, PI968); they can only go through cargo aircraft.
• Customs export declarations must truthfully declare lithium battery product names, specifications, and watt-hour data; lithium batteries must not be disguised as general cargo for declaration.

Maritime Compliance

Maritime transport is the most common method for lithium battery and lithium battery-containing product exports, with IMDG rules as the core compliance framework.

Key points to note in 2026:

• Shipping companies have stricter review of lithium battery space bookings; some routes require providing complete dangerous goods documents (dangerous goods package certificate, packing certificate, MSDS) before space allocation.
• After the implementation of the new Maritime Commerce Law, dangerous goods misdeclaration will face higher fines, and port storage fees and demurrage generated from cargo abandonment will be fully borne by the shipper.
• When exporting goods containing lithium batteries (such as electric vehicles, energy storage equipment, consumer electronics), a separate assessment of whether they are dangerous goods must be conducted; if necessary, declare according to UN3171 (battery-powered vehicles) or UN3481 (equipment packed with lithium batteries).

Rail Transport Compliance

Lithium battery transport via China-Europe trains is gradually normalizing, with the International Convention Concerning the International Carriage of Goods by Rail (COTIF) and China's railway dangerous goods transport regulations implemented in parallel.

The advantage of rail transport lies in relatively simplified procedures and high customs clearance efficiency, but the following points must still be noted:

• Lithium batteries must use Type II or above packaging; declaration documents must include complete dangerous goods package certificates and packing certificates.
• Some European border stations have additional restrictions on lithium battery transit; destination country regulations must be confirmed before export.
• Railway dangerous goods transport must indicate UN number, dangerous goods class, and packaging level in the rail waybill.

IV. Risks and Costs of Improper Dangerous Goods Declaration

Customs and Maritime Administration Penalties

According to relevant regulations from China's General Administration of Customs and the Ministry of Transport:

• False declaration or omission of lithium batteries can result in fines of up to 500,000 yuan, and those with serious circumstances may have their freight forwarding agency qualifications revoked.
• The maritime authorities, upon verification of undeclared or improperly declared dangerous goods, can impose fines of three times the transport vehicle freight rate on shippers.

Logistics Chain Losses

• If a vessel is delayed or detained due to misdeclaration, shippers must bear the time charter losses of the shipowner and port miscellaneous fees.
• Cargo abandonment handling: The new Maritime Commerce Law implemented in 2026 explicitly states that abandonment fees resulting from improper dangerous goods declaration shall be fully borne by the shipper, and shipowners will no longer bear joint and several liability.

Exporter Reputation Damage

If a freight forwarding company frequently makes improper declarations, it will be blacklisted by shipping companies and customs, affecting subsequent space booking and customs clearance efficiency. The compliance record of exporters will also be incorporated into customs credit ratings; low-credit enterprises will face higher inspection rates and customs clearance costs.

V. How Freight Forwarding Companies Help Customers with Compliant Shipping

Professional freight forwarding companies play a key role in lithium battery exports, serving as both the first line of defense for compliance control and an important partner for customer cost reduction and efficiency improvement.

1. Pre-Review Services

A reliable freight forwarding company should require customers to provide the following at the initial order stage:

• Lithium battery specifications (rated voltage, capacity, Wh)
• UN38.3 test report
• Product MSDS (Material Safety Data Sheet)
• Dangerous goods package certificate issued by the packaging manufacturer

Based on the above materials, pre-assess the cargo attributes, confirm which UN number should be used for declaration, and avoid declaration errors.

2. Professional Space Booking and Documentation Services

Experienced forwarders can recommend optimal shipping company routes based on cargo characteristics and assist in completing:

• Dangerous goods space booking (apply 3~5 working days in advance, provide complete dangerous goods documents)
• Dangerous goods declaration form preparation and signing
• Obtaining and reviewing dangerous goods package certificates and packing certificates
• Preparation of dangerous goods documents required for destination port customs clearance

3. Cost Reduction Advice: Reasonably Planning Transport Modes

Cost differences across different transport modes are significant, and forwarders should help customers make wise choices:

| Transport Mode | Applicable Cargo | Cost Characteristic | Compliance Difficulty |
|---------|---------|---------|---------|
| Air | High-value, small batch, urgent | High | Most stringent documentation requirements |
| Maritime | Large volume, regular transit time | Low | High packaging and marking requirements |
| Rail | Europe direction, China-Europe trains | Medium | Border restrictions need confirmation |

For equivalent cargo, forwarders can help customers reduce transport costs under compliance premises by optimizing packaging (reducing packaging level) or selecting appropriate transport routes — this is also an important manifestation of freight forwarding service value.

VI. Trend Outlook and Practical Recommendations

Looking ahead, lithium battery export compliance trends will show the following characteristics:

• Digitalized Regulation: Blockchain and customs AEO certification systems will be more involved in dangerous goods traceability, and the consistency between declared information and actual cargo will become a key regulatory focus.
• Upgraded Inspection Methods: Customs has widely used X-ray machines and handheld spectrometers for rapid screening of export goods; the probability of lithium battery products being sampled for inspection will continue to rise.
• Shipping Company Policy Differentiation: Different shipping companies will further differentiate their lithium battery space booking policies; capable large shipping companies may launch lithium battery special lines, and small and medium forwarders will need to rely more on professional dangerous goods forwarder networks.

Recommendations for Exporters:

• Establish internal dangerous goods compliance procedures and designate dedicated personnel responsible for lithium battery declaration work.
• Prioritize cooperation with freight forwarding companies that have dangerous goods operation qualifications; do not choose low-price non-compliant channels for the sake of saving money.
• Regularly follow IMDG rule amendments, announcements from China's General Administration of Customs, and shipping company policy updates.
• Before exporting products containing lithium batteries, be sure to conduct a complete product classification assessment; do not judge based on experience or惯例.

The tightening of lithium battery export compliance is an irreversible trend, but as long as exporters and freight forwarding companies join hands to establish standardized declaration procedures and choose professional logistics partners, they can achieve efficient cross-border transport while ensuring safety.

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