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!
After China cracked down Bitcoin mining in , total country shares of China dropped a lot.
In Jan 2022, Mainland China contributes 21.1%, USA (37.8%), Kazakhstan (13.2%) and I am sure that from 2022 to 2023, mining activities increase in the USA. and other nations more than in China.
Mining map (CBECI). Don't know why they don't keep it updated.
Bitcoin mining by country 2023United States: 35.4%
Kazakhstan: 18.1%
Russia: 11.23%
Canada: 9.55%
Ireland: 4.68%
Malaysia: 4.58%
Germany: 4.48%
Iran: 3.1%
Data can be not very correct with disappearance of mining pools from China.