Once there’s a quality issue, you will face difficult communication, product rejection, excuses from supplier, extra handing costs, lower PPM and worst case scenario, a pause to the whole project relating to this single part. However, MES has an international team that can work with customer to quarantine the defectives and guarantee uninterrupted production. Meanwhile, a local team near supplier will investigate the root problem, adopt correction and make sure all newly-produced parts are qualified. Stock parts will be quarantined and inspected one by one, regardless on the cost MES has to pay. Process control documents will also be inspected to determine a flawless long-term manufacturing process and quality control system.