Control shipping service is when the supplier has no necessary measures to prevent NG products flowing to the client or the end user, enforce the supplier to undertake quality control procedures. Control shipping is divided into CSL1 and CSL2 and CSL3 three levels.
CSLⅠ：Suppliers’ own staff or 3rd party executes 100% inspection on products before shipping to customer side.
CSLⅡ：On the basis of CSL1, a third party who is selected by the supplier and approved from the customer side carries out CSL2. Executing within or outside of the supplier’s factory.
CSLⅢ：On the basis of CSL2, the third party helps suppliers find out the root cause of issues and come up with improvement suggestions.