Purchasing Vendor Portal & Contacts Vendor Portal Supplier Quality Manual Rev 8Purchase Order Terms & ConditionsEU Suppliers Quality AgreementCustomer Specific Requirements Global Office: 248.340.4143Contact Global Purchasing North America Office: 248.340.4143Contact North America Purchasing Vendor Portal Supplier Quality Manual Rev 11Purchase Order Terms & ConditionsEU Suppliers Quality AgreementCustomer Specific Requirements Global Office: 248.340.4176 Contact Global Purchasing North America Office: 248.340.4172 Contact North America Purchasing Europe Office: +49 5037 31 255 Contact Europe Purchasing Asia Office: 86.108.853.3864 Contact Asia Purchasing