This isn't the Spratleys. China isn't making any territorial claims in the Arctic, just investing.
Nah, thats true. But Chinese conglomerates are closely connected to the state, even if they are not owned by it. So "private" investments are not as innocent as it may sound, and their enviromental record is pretty horrible - which could lead to a disaster in that part of the world. The arctic countries could try to keep outsiders out of this fragile area and at the same time secure its resources for their own benefit.