These companies are acting like people determine if the factory is made correctly according to the international standards such as ISO 14001 standard, if you want to, you must verify that your company SCS comes do?
This company will act as a check that the plant conforms to international standards, such as ISO 14001, if you want your company to hire SCS to determine whether you do or not.
This company will act as investigators that the factory is correct according to the international standards or not, if you want the standard ISO 14001 you must hire company. SCS check that you do?