National Iranian Oil Company
Oil and Energy Industries Development (OEID) Tehran Oil Refineries Petrochemical Research and Technology Co. Kharg Petrochemical Co. Kermanshah Petrochemical Indusries Co. MAPNA Group |
Petrochemical Industries Design and Engineering Company (PIDEC)
Armeh-Nou Co. Shima Farmand Co. Jondishapour Co. Foolad Paya Eng. Co. Foolad-e-Ahwaz Co. |