We’re TNG COOPERATION COMPANY LIMITED Was originally TAWANNAMSIENGGROUP COMPANY LIMITED Since the trustworthy of the management executive team for the Double Track Railway Construction Project in the year 2009 which established by a gathered up teamwork group and by having a successful and skilled in that project and of its intention to begin to providing a monitoring services without breaking the railroad. With extensive experience, knowledge and capabilities and has received additional training to learn of any form of defects within welds and all forms of railroad construction to ensure that the organization will operate primarily as an independent engineering services in the field of nondestructive testing. Then, we start our service by Ultrasonic Test and other inspecting methods respectively. Then we began to give a full Inspect & Certify the Result   in the same year… Currently, we can provide NDT and not limited to UT. / UTM. / MT. / PT. / VT. / RT./ ET. and expand this sequence. We have great expertise particularly in the integrity of the weld rails of all sizes and every welding.