MAHAJAK DEVELOPMENT CO.,LTD. (Head office)

MAHAJAK DEVELOPMENT CO.,LTD. (Branch 16)

MAHAJAK DEVELOPMENT CO.,LTD. (Branch 19)

MAHAJAK DEVELOPMENT CO.,LTD. (Branch 20)

CHAI MONGKOL ELECTRIC CO.,LTD. (Head office)

SIN SOMBOON TRADING CO.,LTD. (Head office)