We have completed our training and examination processes to renew the plastic welder certificates we received from TÜV SÜD, an international certification body for many management systems.

While some of our membrane technicians who successfully completed the theoretical and practical exams will renew their certificates, some of our membrane technicians who have become competent in their fields through the trainings we provided will receive their first certificates.

As Yesti Group, we have been effectively implementing and controlling all management and production systems for over 30 years, for which we hold international quality certificates that form the cornerstone of our quality policy. As a result of this, we meticulously follow the renewal period of all our quality certificates, as well as plastic welder certificates, and continue to provide world-class services.