Re: Why are they western?
The reason companies register in the US is because that is where the investers put their money. If a company wants to build a new plant and needs money the US with all of those Wall Street brokers can find you the money. It may be shares, bonds or other types such as a separate company which builds buildings to lease to you, separate companies which will lease machinery. Thus the only money up front which you need is for the new specialized equipment allowing an expansion to be riskier buy initially cheaper. Money comes from all over the world to the US to be invested so if you want investment money go to where it is which is the US.