As a freight forwarder, how to find effective customers (by sea and air)?

Customers, you have to go to the corresponding factory or market to wholesale customers.

At present, what I know about import and export, shipping and food raw materials are generally more processing plants.

Therefore, for freight, shipping, etc. You have to make sure what most of them are and then find some factories and wholesalers from the corresponding industries.

Then slowly, there will be customers.