Balthagor wrote:North Korea imports all its uranium;
https://en.wikipedia.org/wiki/Uranium_mining_by_country
With current sanactions against the country, how would North Korea import its Uranium?
Not Kazakhstan, not Russia, not China (Xi Jin Ping don't even bothered to visit Pyongyang but the "dirty lady" claimed by the North) and all 3 of them are part of Nuclear Supplier Group which are bounded not to export Uranium to North Koreans.
http://www.nti.org/facilities/677/
http://www.pbs.org/newshour/rundown/u-s ... um-mining/
Since the facilities size and status are unknown, therefore it is appropriate to have one or two hex that capable to build 2 uranium mines will do.
Same goes to oil supplies, which must be done in Oil Derricks as it is believed North Koreans possess some oil reserves but the lack of investments and technologies to extract the oil.