Siam Steel Tower Co., Ltd. was established in 1996 and successfully achieved meritorious ISO 9001 quality management system certification in terms of product design and production of transmission line towers, telecommunication towers and substation structures since march 2007. Di 2003 the company setup a new factory located at Nong Khae district of Saraburi province. The factory covering an area of 35 rai had a total production capacity of 1,200 metric tons per month. Later the company built more factory buildings and purchased additional equipment and machinery with as aim to expand its production capacity to 3,500 metric tons per month with a working area of 2×3,880 square meters and stockyard area of 13,000 meter persegi. SST become one of the largest steel tower manufacturers in Thailand.

In order to limit an environment impact for our manufacturing process, SST has impremented the environment management system and acheived ISO 14001 cefitication since December 2011.