นครหลวงสิ่งประดิษฐ์ไม้ Registered No. 0103515002269 Province Bangkok Registration date February 7, 1972
KOBPHOL KARN CHANG LIMITED PARTNERSHIP Registered No. 0103515000801 Province Bangkok Registration date January 17, 1972
CHATPHAIBOL CO., LTD. Registered No. 0105514004791 Province Bangkok Registration date August 16, 1971
P. SIRTANA LIMITED PARTNERSHIP Registered No. 0103513010825 Province Bangkok Registration date June 22, 1970
RUNG REONG THAI WOOD INDUSTRY COMPANY LIMITED Registered No. 0105508002854 Province Pathum Thani Registration date November 24, 1965
RUAM MITR CONSTRUCTION LTD., PART Registered No. 0103500002373 Province Bangkok Registration date July 30, 1957
BHANDHAKARN COMPANY LIMITED Registered No. 0105499000581 Province Pathum Thani Registration date June 11, 1956
BUM ROONG THAI KARNCHANG LIMITED PARTNERHSIP Registered No. 0103498000551 Province Nakhon Pathom Registration date March 15, 1955
HENG HENG LEE REGISTERED ORDINARY PARTNERSHIP Registered No. 0102494002299 Province Bangkok Registration date July 16, 1951