Despite a complete ban on Bitcoin mining in 2021, China has re-emerged as a significant player in the global Bitcoin mining landscape. A recent Reuters report, citing data from the Hashrate Index, reveals that China now accounts for approximately 14% of the global Bitcoin mining share as of October, placing it third behind the United States and Russia. This unexpected resurgence is attributed to factors like cheap electricity in energy-surplus regions and the development of sophisticated data center infrastructure, allowing clandestine mining operations to flourish. Furthermore, some miners in regions like Xinjiang are leveraging excess power capacity due to transmission limitations. While many Chinese mining companies relocated to North America and Central Asia following the ban, the recent recovery in Bitcoin profitability, driven by a more pro-cryptocurrency environment in the United States, has incentivized reactivation within China. Experts estimate that China currently contributes between 15% and 20% to the global Bitcoin hashrate, underscoring the resilience and adaptability of the mining community. This development raises questions about the effectiveness of the ban and the future of Bitcoin mining regulation. ```