Makampani a petrochemical makamaka ndi makampani opanga mankhwala omwe amapangira mafuta osaphika, gasi ndi zinthu zina zopangira dizilo, palafini, mafuta, mphira, fiber, mankhwala ndi zinthu zina zogulitsa. Gasi wa mafakitale ndi gasi wochuluka amagwira ntchito yofunika kwambiri pamakampaniwa. Acetylene, ethylene, propylene, butene, butadiene ndi mpweya wina wamafakitale ndiye zida zoyambira pamakampani a petrochemical.