Quality & Environment


Quality assurance and continuous improvement of all our activities are cornerstones of our company.

We are an ISO 9001 certified organization. Our quality management system supports our goal of offering quality services and maintaining high customer satisfaction.

We comply with the Contractor’s Compliance and Liability Act.


NTG is committed to reducing its environmental impact. We continuously implement and improve procedures and policies to establish environmentally sound business operations.

We are ISO 14001 certified. Our environmental system follows the standard to ensure that we comply with the environmental regulations.



DIN ISO 9001 and DIN ISO 14001 Certificate