China once led global crypto mining, controlling 70% by 2021, with low energy costs and Xi Jinping’s blockchain initiative boosting its tech edge over the U.S.China once led global crypto mining, controlling 70% by 2021, with low energy costs and Xi Jinping’s blockchain initiative boosting its tech edge over the U.S.  Read More crypto miningChina once led global crypto mining, controlling 70% by 2021, with low energy costs and Xi Jinping’s blockchain initiative boosting its tech edge over the U.S.