Our founder Franz Josef Wolf recognized early on: "Understand the times, anticipate the future, shape it with partners." True to this motto, successful, trusting and efficient cooperation with our suppliers is our top priority.

As an internationally active group, Woco stands for innovative initial development and component production for customers worldwide. Cooperation with reliable partners is of the utmost importance to us. We attach particular importance to quality, delivery reliability, competitiveness and good cooperation on the purchasing and development side for a successful business relationship.

All information about the exchange and cooperation with the Woco Group can be found here:

Conflict Minerals

Obligation to provide evidence of certain raw materials

The US Dodd-Frank Act obliges companies listed in the USA to disclose and report the use of certain raw materials from the Democratic Republic of Congo or its neighboring countries. These so-called conflict minerals are gold, tin, tungsten and tantalum as well as their derivatives. German companies may be particularly affected if they supply such products - e.g. electronic goods - to US companies. The EU Regulation laying down supply chain due diligence obligations for Union importers of tin, tantalum, tungsten, their ores and gold originating from conflict-affected and high-risk areas entered into force on January 1, 2021. The EU regulations require EU importers to carry out due diligence along their supply chains.

Woco's requirement for conflict-free deliveries and the suppliers' obligation to provide Woco with this information upon request serve as the basis for the preparation of the annual Conflict Minerals Report. This report states whether and in what form conflict minerals are used in the company's products. If conflict minerals from unsafe smelters are listed in supplier reports, suppliers are required to take corrective action and provide it to Woco.

If you have any questions on this topic, please send an e-mail to:

Code of Conduct for our suppliers

Woco recognizes its responsibility towards its own company, its business partners, the environment and society. Our actions are guided in particular by the values of integrity and fairness, regardless of whether the activity is carried out inside or outside Germany.

We can only achieve this by introducing due diligence obligations in our processes and by ensuring that our suppliers are guided by the same values as described in the Code of Conduct for Suppliers.

Code of Conduct



General Terms and Conditions of Purchase

The General Terms and Conditions of Purchase shall apply to all business transactions with all suppliers or other contractors, even if they are not mentioned in subsequent contracts. Any provisions and terms and conditions to the contrary shall not apply unless authorized representatives of both contracting parties have unanimously confirmed this.

General Terms and Conditions of Purchase & Payment


Terms of purchase and payment - Ordering tools


Supplier portal and supplier selection

The Woco Group's supplier portal offers the possibility of global interactive data exchange in order to organize communication between the Woco Group's worldwide locations and suppliers more easily, transparently and effectively.

For Woco, the focus is on supplier performance. Supplier performance is evaluated via the supplier portal. The supplier evaluation serves to assess the suppliers' ability to meet Woco's quality and delivery performance requirements on a permanent basis. The evaluation influences the decision to award new projects.

Please register in our supplier portal. After successful registration, all information will be available to you securely and up to date. Registration and use of the portal is free of charge for all suppliers.

Please note that the following requirements apply to suppliers in the field of production material for a possible cooperation:

  • Certification according to ISO 9001, IATF 16949 or comparable
  • IMDS - quality performance in development and production
  • Cost efficiency on a global scale
  • Development support for our projects
  • Compliance with automotive standards for logistics and environmental management

Furthermore, supplier approval is granted by Woco after a successful potential audit in accordance with VDA 6.3. Every business award is based on a process of bid evaluation.

If you need help with registration or have any other questions, please contact:

Woco Industrietechnik GmbH
Supplier Development, Processes & Systems 
Hanauer Landstraße 16 
63628 Bad Soden-Salmünster 
Phone: +49 (0) 60 56/78-7577 

Woco supplier portal

Registration process supplier portal