Policy of granting concessions in order to maintain peace

The colonial state must not be furtive with Nationalism or else you'd sense a civil war. the location of the concession best serves the purpose that the other receiving power country would offer peace not just that the colonial must also be rich in 1st raw materials. moreover if you'd take a look at the demographics of the colonial state you should see if the 2 countries share similar ethics,religion,Ideology

Ais your answer

No one knows sorry. : )