Mining is an extremely productive part of the business. Mining of cryptocurrency is the process of confirming transactions before they are placed on blockchain. China is the world’s largest producer of bitcoin mining. There are 6 major mining farms in china presently that produce 60 % of bitcoin supply all around the world!
What is your point of you on this?
I will say maybe this your information was an old version of the reality happening as at bow, since China has lay ban on cryptocurrency in general, everything about bitcoin there has been minimized and alot of miners have relocated from China to other part of the countries suitable for them to mine, so i wouldn't admit this for now that China is the largest country having bitcoin miners, they might have been the one in the past but not anymore.