The crypto-currency mining industry has increasingly become a solidified alliance of interests now. In the bull market, mining is undoubtedly an attractive business with guaranteed profits and appreciation of coins held. Together with the high handling fees, miners have been able to make money leisurely this year. This, however, has also caused the exclusivity of miner groups and the increasing monopoly in mining. On March 24, at the ordering meeting of BITMAIN, AntMiner signed a priority supply