Located in Phra Nakhon Si Ayutthaya Province, the Company has the facilities with a combined floor space of 21 rai (33,600 sq.m.) and some 200 employees. The factory , equipped with continuous fabrication lines from material intaking to shop assembly before shipment, yields approximately 500 tons of standard types and custom-made antenna masts and towers.  
 
Major business lines include : The products and services of DSE have won the favour and confidence of telecommunications operators such as Telephone Organization of Thailand, Communication Authority of Thailand, Shinawatra Group, Nokia, Ericsson, TT&T , UCOM, Siemens to name a few.