* Ministry of Finance, Malaysia (MOF)
* Board of Engineers, Malaysia (BEM)
* Registrar of Companies, Malaysia (ROC)
* Association of Consulting Engineers Malaysia 
  (ACEM)
* Department of Environment, Malaysia (DOE)
* Petroliam Nasional Berhad (PETRONAS)
* World Bank (WB)
* Asian Development Bank (ADB)
* Islamic Development Bank (IDB)
* United Nations Procurement


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