Here's a fascinating article from the Penlight. It's called Why You Need a Sourcing Agent.
It has insightful perspectives to glean upon. Here’s one that’s particularly thought-provoking:
If you do not have the plan to set up sourcing office to manage the operation in China, then a sourcing agent can be your local representation and work closely with your company to research, find, negotiate and manage suppliers in China. They can also assist with market research, quality control, pre-shipment inspection, customs clearance, and supplier network development.
Have a look at the full article for more of ...