The difference between "Agent" and "End-to-end Agent" services is that the second one includes the sourcing for new or alternative suppliers, while the first one does not.
For example, you are planning to purchase products in China or start working with a new supplier, but you did not conduct a sourcing by yourself, and the potential supplier has not yet been confirmed. As part of the "End-to-end Agent" service, we are engaged in the sourcing for the correct supplier. However, ordering "Agent" service means that you have previously engaged in the sourcing for a supplier on your own.