To verify a trade company in Yuzhou, a city in China’s Henan province, follow these steps:

1. **Check Online Resources**: The first step is to visit official government websites like the Yuzhou City Bureau of Industry and Information. They typically have databases or search tools for registered companies.

2. **Search Company Registry**: Use the search function on the government website to input the name or registration number of the company you wish to verify.

3. **Verify Documents**: Once you find the company, check if it has the necessary business licenses, such as enterprise license, tax registration certificate, and industrial property rights if applicable.

4. **Contact the Company Directly**: If needed, you can also contact the trade company directly through their official website or customer service hotline.

Remember that verifying a company’s trade status is an ongoing process, as companies may change their business practices or status over time.