If you’re supplying chips to manufacturing partners in China, significant regulatory changes are coming that will affect your importation process. Starting October 2025, China Customs is implementing stricter documentation requirements for semiconductor imports, particularly targeting memory chips. Understanding these changes now will prevent costly shipping delays and compliance issues for your business.
### **Key Documentation Changes: COO and COD Requirements**
The most significant change involves mandatory submission of both Country of Origin (COO) and Country of Diffusion (COD) information for all integrated circuit imports.
**Understanding the Critical Difference**
– **COO (Country of Origin)**: The country where the final packaging and testing occurred
– **COD (Country of Diffusion)**: The country where the wafer fabrication process took place
Many companies have traditionally focused only on COO, but the new regulations require both pieces of information. For memory chips (NAND Flash, DRAM), this requirement will be strictly enforced from day one.
**Practical Example**:
A memory chip designed in the US, with wafers diffused in Taiwan, and packaged in Malaysia would require:
– COD: Taiwan
– COO: Malaysia
Failure to provide both accurate classifications will result in customs holds until proper documentation is submitted.
### **Why These Changes Matter for Your Business**
**Preventing Shipping Delays**
Customs clearance times are expected to increase significantly during the initial implementation phase. Memory chips without proper COD documentation will face automatic holds. Industry estimates suggest clearance times could extend from the current 2-3 days to 10-15 days for non-compliant shipments.
**Financial Impact**
Customs bonds and additional storage fees for held shipments can quickly accumulate. One industry analysis projects average additional costs of $1,500-$3,000 per held container, plus potential demurrage charges after 7 days.
**Supply Chain Disruption Risk**
For just-in-time manufacturing operations, even a 3-day delay can cause production line stoppages. The automotive and consumer electronics sectors are expected to be most affected.
### **Specific Requirements for Memory Chips**
Memory chips face additional scrutiny due to their strategic importance and higher value. Special requirements include:
**Enhanced Documentation**
– Certificate of Origin with detailed manufacturing process description
– Diffusion process technology node specification (e.g., 12nm, 7nm)
– Factory identification for both diffusion and packaging locations
– Transfer pricing documentation for goods moving between related entities
**Technical Specifications**
– Memory type and capacity must match technical datasheets
– Export control classification must be clearly stated
– End-use declaration may be required for high-capacity memory modules
### **Action Plan for Compliance**
**Immediate Steps (Next 30 Days)**
1. Contact your chip suppliers to obtain formal COD documentation
2. Update your product database with both COO and COD information
3. Inform your Chinese manufacturing partners about your compliance timeline
4. Review current shipping documents for missing information
**Medium-term Preparation (Next 90 Days)**
1. Implement a verification process for all new component purchases
2. Train your logistics team on the new requirement
3. Develop a contingency plan for potential Q4 2025 delays
4. Consider increasing safety stock for critical memory components
**Working with Your Contract Manufacturer**
– Provide complete documentation before shipping components
– Establish clear communication channels for customs issues
– Designate responsible parties for documentation accuracy
– Consider third-party logistics providers with semiconductor experience
### **Common Scenarios and Solutions**
**Scenario 1: Unknown Diffusion Origin**
If your supplier cannot provide COD information:
– Request factory certificates or manufacturing process documentation
– Consider alternative suppliers with better traceability
– Budget for potential customs delays and associated costs
**Scenario 2: Multiple Diffusion Locations**
For chips manufactured across multiple countries:
– Document the primary diffusion location (where the critical layers were created)
– Maintain supporting documentation for the entire manufacturing journey
– Consider getting pre-clearance opinions from customs brokers
**Scenario 3: Distribution Channel Complexity**
When working with distributors rather than direct manufacturers:
– Include COD requirements in your purchase agreements
– Require distributors to provide chain of custody documentation
– Implement verification processes for distributor-provided information
### **Best Practices for Documentation**
**Required Documents Checklist**
– Commercial invoice with detailed COO and COD information
– Packing list matching physical shipment contents
– Certificate of Origin from the chamber of commerce
– Manufacturer’s affidavit specifying diffusion process location
– Technical specifications sheets
– Export license (if applicable)
**Digital Preparation**
– Ensure all documents are machine-readable
– Consider blockchain-based documentation for enhanced verification
– Maintain digital copies accessible to your logistics team
– Implement version control for document updates
### **Conclusion: Proactive Preparation Prevents Problems**
The October 2025 regulatory changes represent a significant shift in China’s approach to semiconductor imports. While adding complexity to your supply chain, these changes are manageable with proper preparation.
Start gathering COD information from your suppliers now, update your internal systems, and communicate clearly with your manufacturing partners. The companies that prepare early will avoid the inevitable delays that will affect unprepared organizations during the transition period.
Remember: In global supply chains, documentation accuracy is just as important as product quality. Your attention to these new requirements will ensure smooth manufacturing operations and maintain your reputation as a reliable business partner.
**Need help preparing for the new regulations?** Contact our supply chain team for a customized assessment of your readiness for the October 2025 changes.
