TTSB is a Malaysian-based company operating throughout Malaysia. Formed in 1994, it is a subsidiary of Malaysian Resources Corporation Berhad (MRCB), a major property and construction group with the diversified business activities. An energetic engineering company, with proven expertise in project management and implementation, TTSB offers its specialised services in the Electricity Supply Industry (ESI).

Since its inception, TTSB has embarked on the task of fulfilling the ever-increasing demand for electricity. In improving the transmission system of the country, TTSB has undertaken the construction of the first 500kV Transmission System Development Project for Tenaga Nasional Berhad (TNB). TTSB has thus been instrumental in putting Malaysia on the map of the world by taking up the challenges of constructing the system on a 'fast-track' basis.