December 12, 2019 Mining report estimates 65% of the Bitcoin network’s hash rate is in China.

According to a report from CoinShares, the Sichuan province alone comprises 54% of the global hash rate. This figure is a moderate increase from a similar study conducted in June. The report also estimated that Bitmain remains dominant as an ASIC-manufacturer, comprising approximately 66% of the market, though down slightly from 70% in June. A variety of competing hardware from MicroBT, Bitfury, Canaan, Innosilicon, and Ebang comprises the remainder. Finally, the report estimated the the current market-average all-in marginal cost of mining to be roughly $6300 per BTC.