I wonder if it has something to do with advance economies growing at 1%-2% a year while the least developed countries are growing at 4% - 5%? This would cause

I wonder if it has something to do with advance economies growing at 1%-2% a year while the least developed countries are growing at 4% - 5%? This would cause the demand for building materials to skyrocket as billions of people can enter the market to purchase lumber, steel, and energy who 10 years ago couldn't.