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Customs8 min read

Complete Guide to Customs Documentation

Michael Chen
November 3, 2025
Complete Guide to Customs Documentation

Customs documentation is critical for smooth shipping from China to Nigeria. Incorrect or incomplete documents can cause delays, additional costs, or even confiscation of goods. We handle this for you, but here's what you should know.

## Required Documents

### 1. Commercial Invoice - Detailed description of items - Unit prices and total value - Currency and payment terms - Seller and buyer details - Incoterms (usually CIF or FOB)

### 2. Packing List - Item-by-item breakdown - Quantities and weights - Dimensions of each package - Gross and net weights

### 3. Shipping Documents - Bill of Lading (for sea shipping) - Air Waybill (for air shipping) - Insurance certificate - Certificate of Origin

### 4. Import Permits (if required) - For controlled items - For certain product categories - Pre-clearance documents

## HS Code Classification

The Harmonized System (HS) code is crucial: - 6-digit code identifies product type - Determines tariff rates - Affects import duties - Incorrect codes cause delays

Common examples: - Electronics: 8471 - Textiles: 6204 - Machinery: 8477 - Plastics: 3926

Always verify HS codes with the Chinese exporter!

## Common Documentation Mistakes

1. **Undervaluation** - Don't declare below fair market value 2. **Incomplete descriptions** - Be specific about items 3. **Wrong HS codes** - Causes reclassification and delays 4. **Missing signatures** - All required parties must sign 5. **Inconsistent information** - Match across all documents

## Timeline

- Day 1-2: Prepare documentation - Day 3: Submit for customs review - Day 4-5: Clearance approval (if no issues) - Day 6: Port release

**We handle all documentation for you!** Our team ensures compliance with both Chinese export regulations and Nigerian import requirements. Contact us for any specific requirements for your items.

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