12 review of operations glass and related this segment encompasses flat con struction materials fabricated other in the asahi group ranks alongside pilkington plc compagnie de saint gobain as a global leader with world market share around 20 subsidiaries glaverbel sa afg industries inc are our production sales bases europe united states respectively we also rank one s top companies construction features applications main products business area float double glazing units fire resistant siding boards which mainly used housing build ings is made using process to eliminate distortion produced by sandwiching dry air between layers offers outstanding insulating capabilities minimizes energy consumption prevents condensation honban exterior stylish high value added strategic make range that increase comfort expanding