STW places great value on fulfilling its social responsibilities during all entrepreneurial activities, and on complying with the respective applicable laws and other pertinent regulations during all social actions and decisions. 
We make sure to comply with our social responsibilities in accordance with the "Code of Conduct" as well as eliminating conflict minerals from our supply chain. 
Furthermore, we run an energy and environmental management system which is integrated into our existing quality management system in order to guarantee the continuous and efficient fulfilment of all customer-specific, legal or official as well as internal requirements with regard to quality, energy and the environment. At the same time, we do not lose sight of important work safety measures which serve to protect our employees. In order to ensure and monitor our product and process quality, we introduced a Quality Management System in accordance with DIN EN ISO 9001 in 1995, into which all areas of the company have been integrated. In order to guarantee the additional requirements placed on the automotive branch, we are also certified in accordance with IATF 16949. With this extension of the Environmental and Energy Management System, STW is able to cover all important standards for responsible manufacturing.

ISO 9001:2015

Since 1995: Quality Management standard in accordance with the approval-relevant requirements 

IATF 16949:2016

Since 2003: Quality Management standard in accordance with the requirements laid down in the international automotive standards

ISO 14001:2015

Since 2017: The Environmental Management System fulfils the requirements laid down in the regulations 

ISO 50001:2011

Since 2017: The Energy Management System fulfils the requirements laid down in the regulations