Oakajee Port & Rail chief John Langoulant has scotched suggestions that delays at the Jack Hills iron ore development are holding back its efforts to develop its namesake $4 billion port and rail venture in the Mid-West.

Oakajee Port & Rail chief John Langoulant has scotched suggestions that delays at the Jack Hills iron ore development are holding back its efforts to develop its namesake $4 billion port and rail venture in the Mid-West.