My official study was in the area of uranium enrichment. The situation in Soviet Union was always following - mostly Kazakhstan, Uzbekistan, Tajikistan mined th

My official study was in the area of uranium enrichment. The situation in Soviet Union was always following - mostly Kazakhstan, Uzbekistan, Tajikistan mined the raw uranium and did first enrichment pass (I grew up in one of that areas), and then final enrichment was done in Russia. I’m not involved into that anymore for more than 20 years, but I doubt that situation has changed significantly as it requires significant capital investment, plus know-how…