1, whether there is industrial and commercial registration (business license of legal representative), 2, tax registration certificate, 3, legal person code certificate, 4, having a fixed business place, 5, whether it pays taxes normally, 6, whether it participates in the industrial and commercial bureau every year.
This is the information found in the national enterprise credit information publicity system, and it is an enterprise registered and operated according to law.
I suggest you consult about joining through formal channels such as official website. Before joining, we should look at the authoritative media's evaluation reports on Yishangtong and learn more about it.