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Despite a nationwide ban enacted in 2021, China's Bitcoin mining operations have staged a remarkable comeback, reclaiming a significant portion of the global market share. This resurgence is driven by abundant cheap electricity, a surplus of underutilized data centers, and a subtle shift in regulatory tolerance, positioning China as a major player once again.
Key Takeaways
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China has surged back to third place globally in Bitcoin mining, holding a 14% market share by late October, after its share dropped to zero following the 2021 ban.
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The revival is fueled by extremely cheap electricity in energy-rich provinces like Xinjiang and the availability of idle data center infrastructure.
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Sales data from Canaan Inc., a major mining rig manufacturer, shows a significant rebound in its China-based revenue, indicating increased mining activity and investment.
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While the official ban remains, enforcement appears to have softened, with Hong Kong's pro-crypto stance potentially signaling a broader shift in China's digital asset policy.
The Underground Revival
China's Bitcoin mining industry, once thought to be dismantled by the 2021 crackdown, is now quietly re-emerging. New estimates place the country at approximately 14% of the global hashrate by late October, making it the third-largest mining hub worldwide, despite operating largely outside official channels. This comeback is underpinned by China's vast energy overproduction, particularly in regions like Xinjiang, where excess power is available at low costs. Idle data centers, built during a previous investment boom, also provide ideal, efficient, and discreet environments for miners.
Economic Drivers and Manufacturer Confidence
The surge in Bitcoin prices over the past year has significantly boosted mining profitability, encouraging both small-scale operators and larger groups to reactivate dormant facilities or secure new locations discreetly. This trend is further evidenced by the performance of Canaan Inc., the second-largest producer of Bitcoin mining rigs. After its China revenue share plummeted to 2.8% post-ban, the company has seen sales in China rebound dramatically, exceeding 50% in the second quarter of 2025. Canaan's third-quarter revenue increased by 104% year-on-year, signaling robust demand.
Shifting Policy Landscape
While Beijing has not officially rescinded the 2021 ban on cryptocurrency mining, industry observers note a potential moderation in enforcement, especially in jurisdictions where economic incentives are strong. The pro-crypto pivot in Hong Kong, including the approval of spot ETFs and the establishment of a stablecoin regulatory framework, suggests a growing, albeit nuanced, tolerance for digital assets within the broader Chinese policy sphere. This evolving environment provides more operational space for underground miners.
Future Outlook
The resurgence of Bitcoin mining in China could provide crucial support for global demand and price stability for the cryptocurrency. With continued low electricity costs in power-abundant regions and ongoing expansion in the data center sector, mining activities are likely to persist or even grow. For Bitcoin investors and manufacturers like Canaan, these dynamic forces are integral to understanding the complex and evolving cryptocurrency ecosystem.
Sources
This article was created with support from AI-driven technology, drawing on multiple reputable sources. The final content has been thoroughly reviewed and edited by BlockzHub's editorial team to ensure accuracy, clarity, and coherence. Original reporting sources are credited whenever appropriate and as required. The opinions expressed in this article do not necessarily represent the official views or positions of BlockzHub. This article is intended for informational purposes only and should not be considered financial or professional advice. Investing involves risk, and you should consult a qualified financial advisor before making any investment decisions.