The world's largest bitcoin mining group, originally based in Beijing, is now operating in Quebec. Also at the same time, according to its founder, the largest mining group, BTC.Top, also opened a factory in Canada. In addition, after a global survey, the Amsterdam based Bitfury Group ltd. found that Drumheller in alberta, Canada, is one of the best places in the world to conduct mining operations. The largest bitcoin mining group has built 58 megawatts of data centers outside of China, accounting for a third of global capacity, according to investors.