KOKSTANG DISPENSARY REGISTERED ORDINARY PARTNERSHIP Registered No. 0102498001360 Province Suphan Buri Registration date July 19, 1955
การไฟฟ้าเก้าห้อง จำกัด Registered No. 0105496003597 Province Suphan Buri Registration date December 21, 1953
SERM THAI TIMBER COMPANY LIMITED Registered No. 0105493000538 Province Suphan Buri Registration date June 23, 1950