There is a lot of information about Kazakhstan in Russian, but it is better to ask the Kazakhs in miners' chats.
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Hunting for miners in Kazakhstan - why do mining companies continue to close all over the country?
https://emoney-hub.com/blog/novosti-o-kriptovalyutax/oxota-na-mainerov-v-kazaxstane-pocemu-po-vsei-strane-prodolzayut-zakryvatsya-mainingovye-kompaniiThey all speak Russian and many still mine without paying taxes, because if you pay, they will either warn you about the check or it will not happen.