Deep in rural China, Bitcoin miners are packing up
economist.com
economist.com
Local energy and environmental regs vary but places with low energy prices tend to be pretty amenable in that regard. From a corporate legal perspective it varies. If they're pure miners the issues are BEA/CFIUS compliance, tax structuring, and typical intl. holding issues.
If they're selling shares in their mining proceeds there are other layers involved.
If you know of a place offering 2-3c/kWh or drop me a line!