The major reason that American and European companies source plastic injection molds in China is price, at the end of the day that is the major factor. However if we want to have a feel good discussion and ask what to look for when selecting a Chinese injection mold supplier we can look for the following:
 

• References -- Get it from them and do your homework
• Origin of Tool Steel
• Capital investment in shop and equipment -- Is it a dive?
• In place (established method) project plan that shows every aspect of build and give updates
• Quality Systems
• Validation Systems
• Knowledge of your product -- Have they done this before?
• How much capability do they have -- Can they do everything in-house?
• Capacity and what is it at the moment you are placing your P.O.
• Are they able to service you globally?