M/s Saudi  Iron  &

Steel Company

M/s Saudi Aramco Shell Refinery Co.

M/s PETROKEMYA

M/s Saudi Menthiol Co.(AR - RAZI )

M/s Saudi Petro- chemical Co.( SADAF )

M.s Al-Jubail Fertilizer Co.( SAMAD )

M/s Ibn-Hayyan Plastic

Products Co.( TAYF )

M/sDawl Schlumperger Co

M/s Schlumperger Middle East Co.

 M/s Al-Farris Heavy Industries Co.

 M/s Al-Sulaim & Al-Dubaib Co.( DISCO)

 M/s Geophysical Ink Service Co.

 M/s Hali Berton

 M/s Jasum Al- Muhideb Est.