Massive bitcoin mines have been set up in remote parts of Sichuan province, where the miners take advantage of cheap labor and electricity. The miners typically live in company dormitories for days at a time, not unlike the mining towns of generations past. However in this iteration, the miners' clients (who pay for bitcoins) can monitor progress remotely on mobile apps.
Although increased government oversight has caused Chinese bitcoin trading to falter, the country remains an important player in bitcoin mining, thanks to cheap labor and computing power (paywall). Chinese clients who pay for bitcoins to be mined on their behalf can monitor progress remotely, using apps on their mobile phones.
https://qz.com/1026605/photos-chinas-bitcoin-mines-and-miners/