To verify a trade company in QiTaihe, follow these steps:

1. **Check Company Registry**: The primary authority for verifying business entities in China is the local Administration of Industry and Trade (AI&T). Visit their official website or visit your city’s AI&T office.

2. **Request Corporate Identification Documents**: Companies are typically required to provide their business registration certificate (营业执照), tax identification number (税务登记证), or company seal if they have one.

3. **Verify Online Database Systems**: Some cities or regions may maintain their own databases containing verified trade companies. Access these platforms through official websites or authorized interfaces.

4. **Check Company Reputation**: If possible, gather feedback from other businesses or customers who have interacted with the company. This could provide a more intuitive understanding of the company’s authenticity.

Remember that the process might vary slightly depending on your location and the specific requirements of your city AI&T office.