1) Renovation project ( construction and other accessories which is under same project ) : Pattaraporn
2) Security access control ie CCTV, alarm, access control : Pichayanan
3) Equipment ie projector, small accessory ie key, lock and etc : Pichayanan
4) Electric appliance for canteen ie refrigerator : Lalana
5) Physical security guard, maid, pest control : Lalana
6) Curtain, Blind, Carpet : Yawanit