[baybal2]

He was born there, but he did not remain as a citizen of that country, and not been going back, and forth in line of business.

A situation is different from where a double citizen operates a sales office of a company from his home country

[uzakov]

So that we are on a same page, you are stating that any company is de-factor to be considered belonging to country X if: 1) Founder has a double citizenship 2) Has some of the staff in a foreign country 3) Has a sales office in their home country

Is above what you are trying to say?

[baybal2]

In this case, the sales office is their main office, and the Chinese "subsidiary" is where the main body of the company really is.