JOINT VENTURES
HBC TELECOM CO., LTD.
TAWANA CONTAINER CO., LTD.
THAI COPPER ROD CO., LTD.
THAI REFRIGERATION COMPONENTS CO., LTD.
HAYAKAWA ELECTRONICS (THAILAND) CO., LTD.
BANGKOK CABLE GROUP
BANGKOK CABLE CO., LTD.
PONGTIPA CO., LTD.
INDRA INDUSTRIAL PARK CO., LTD.
BANGKOK SOLAR POWER CO., LTD.
BANGKOK MAGNET WIRE CO., LTD.
BANGKOK DIELEC CO., LTD.
SHARGE MANAGEMENT CO., LTD.
ION ENERGY CORPORATION LIMITED
BANGKOK CABLE VENTURES CO., LTD.
ENGLISH 
ภาษาไทย