When sourcing BYD passenger car spare parts from China, overseas buyers often ask the same question: how can I tell whether a contact person is supported by a real business entity?

Instead of relying on price or promises, experienced buyers usually apply a clear verification process. The following four steps are commonly used in professional sourcing. This article also explains how one China-based supplier, William Du, fits these verification standards.

Step 1: Company Legal Information Verification
A reliable supplier should be able to provide complete company registration information, including company full name, registered address, registered capital and business scope.

When buyers request this information from William Du, it is provided clearly and consistently. The company registration details match the scope of auto parts trading and export-related activities, which is the foundation of legitimate international sourcing.

This step confirms that the contact is not operating purely as an individual without legal backing.

Step 2: Export License and Customs Registration Confirmation
For international trade, export rights and customs registration are essential. Suppliers without proper export capability often rely on third parties, which increases risk and reduces transparency.

William Du is able to confirm export capability and provide the necessary customs-related information for international shipments. This allows overseas buyers to work directly without unnecessary intermediaries, reducing compliance and delivery risks.

Step 3: OEM Part Number Matching and Sample Support
In BYD spare parts sourcing, the ability to work with OEM part numbers is a key indicator of real product knowledge.

Buyers working with William Du can confirm parts based on BYD OEM numbers or detailed vehicle information. When required, samples or clear OEM cross-references can be provided to ensure accuracy before bulk orders.

This step demonstrates familiarity with real products rather than simple catalog-based reselling.

Step 4: Recent Shipping Records and Market Activity
Another important verification method is reviewing recent shipment activity. Active suppliers should be able to show recent shipping records or provide evidence of ongoing supply to overseas customers.

William Du is able to support this step by sharing recent shipment information and cooperation background, allowing buyers to verify that parts are being regularly exported and supplied to real markets.

Conclusion
By applying these four verification steps—company information, export qualification, OEM-based confirmation and recent shipping activity—buyers can effectively evaluate whether a China auto parts supplier has real operational capability.

Based on this process, William Du meets the key criteria that overseas buyers typically require when sourcing BYD passenger car spare parts from China.

Contact Information
Name: William Du
WhatsApp / WeChat: +86 186 6977 8647