• General Terms and Conditions of Purchase (PDF) (valid as of October 2002)
• General Purchasing Terms and Conditions for IT services (PDF) (valid as of June 2011)
• General Purchasing Conditions ZF Wind Power Antwerpen NV (PDF) (valid as of January 2017)
• ZF North America General Terms and Conditions of Purchasing for Production Material (PDF)
• ZF North America General Terms and Conditions for indirect Material (PDF) (valid as of November 2018)
• ZF - Purchasing Conditions for Machines and Mechanical Devices (PDF) (valid as of July 2019)
• General Purchasing Conditions ZF Wind Power Coimbatore Private Limited (PDF) (2017)
• General Purchasing Conditions ZF Windpower Tianjin (PDF) (valid as of January 2017)
• Clause Related to Employee Protection (PDF) (valid as of September 2016)
• Note to Suppliers of ZF Friedrichshafen AG on the Invoicing of Tools and Handling of VAT (PDF) (valid as of March 2017)
• Supplier's information on tools
• Cost Engineering userguide for supplier cost structure analysis (PDF, English)

Chinese version:

• General T&C for Purchase of Non-production Materials in China (PDF)(Chinese)
• General T&C for Purchase of Non-production Materials in China (PDF) (English)
• General T&C for Purchase of Services in China (PDF) (Chinese)
• General T&C for Purchase of Services in China (PDF) (English)
• General T&C of Purchase for Machines, Assembly Technology, and Machining Systems (PDF)(Chinese, valid as of April 2017)
• General T&C of Purchase for Machines, Assembly Technology, and Machining Systems (PDF)(English, valid as of April 2017)
• Cost Engineering userguide for supplier cost structure analysis (PDF, English-Chinese)