To verify a trade company in Taizhou, a city located in eastern China’s Zhejiang Province, you would typically follow these steps:

1. **Legal Documentation**: The first step is to obtain the relevant business licenses and registration documents. These documents usually include the company registration number (or corporate code), name, address, and registered capital.

2. **Online Check**: Many local government websites provide an online verification service. You can input the company’s registration information to see if it matches the records.

3. **Direct Inquiry**: If you’re unable to verify the company online or have concerns about the authenticity of the documents, you can always approach the Taizhou City Administration directly for assistance.

Remember that verifying a trade company is crucial for conducting business legally and securely.