Before revision: Some other countries now have chemical engineering societies or sections within chemical or engineering societies, but the AIChE and IChemE remain the major ones in numbers and international spread: they are both open to suitably qualified professionals or students of chemical engineering anywhere in the world.
After revision: Some other countries now have chemical engineering societies or sections within chemical or engineering societies, but the AIChE , IChemE and IiChE remain the major ones in numbers and international spread: they are both open to suitably qualified professionals or students of chemical engineering anywhere in the world.