Samsung is headquartered in Seoul. What would happen to Samsung if the majority of their executive management team was wiped out in one fell swoop? Do they have any manufacturing facilities there? Would worldwide supplies of processor chips and displays be set back for years? What products wouldn’t exist if Samsung manufacturing goes down?
This is why Apple doesn’t like to stick all of its eggs in one basket when it comes to critical components. They split their chip orders between Taiwan Semiconductor and Samsung or split their displays between Samsung and LG, and so on. It’s kind of like not investing too heavily in one sector of the stock market. You try to diversify your risk. Even if you could save a bit more money by throwing all of your volume to one company, splitting your volume between two could prove to be immensely valuable in the event of some kind of disaster.
Hopefully, the latest round of UN sanctions will finally put the hurt on North Korea. Amazingly, both China and Russia voted for them. Kudos to Donald Trump for this major accomplishment.