HIGH Q SMART CONCRETE CO., LTD. Registered No. 0105542094723 Province Bangkok Registration date December 8, 1999
THI SIAM REFRACTORY INDUSTRY CO., LTD. Registered No. 0105536088814 Province Bangkok Registration date August 5, 1993
MAHACHAI FOUINDRIES LTD., PART Registered No. 0743535001025 Province Samut Sakhon Registration date November 2, 1992
AMERICAST COMPANY LIMITED Registered No. 0125535002746 Province Nonthaburi Registration date May 21, 1992
WATTANA CERAMIC COMPANY LIMITED Registered No. 0105533060366 Province Pathum Thani Registration date May 29, 1990
CIRCLE CERAMIC COMPANY LIMITED Registered No. 0525532000218 Province Lampang Registration date May 30, 1989
GREAT CONSTRUCTION AND DEVELOPMENT CO., LTD. Registered No. 0105532034361 Province Bangkok Registration date April 14, 1989
คลาสสิคเซรามิคอุตสาหกรรม จำกัด Registered No. 0105529011941 Province Samut Sakhon Registration date April 8, 1986
PATRA REFRACTORY CO., LTD. Registered No. 0105528033241 Province Saraburi Registration date September 24, 1985
V.VANICH LTD., PART Registered No. 0903524000764 Province Songkhla Registration date November 4, 1981
ซี.แอนด์ เอส. อินซูเลเตอร์ จำกัด Registered No. 0105516001209 Province Bangkok Registration date January 31, 1973
THAIREENFACTORY CO., LTD. Registered No. 0105514000477 Province Bangkok Registration date January 18, 1971
BANGKOK PORCELAIN COMPANY LIMITED Registered No. 0105513000791 Province Chachoengsao Registration date February 25, 1970
G.S. CERAMICS & PALLETS CO., LTD. Registered No. 0105513000724 Province Samut Prakan Registration date February 19, 1970
THE FIRE BRICK FACTORY OF SIAM LTD., PART Registered No. 0103500100146 Province Bangkok Registration date January 14, 1957