Bitcoin Mining Hashrate Shows Signs of Recovery as Chinese Equipment Finds New Homes Abroad

The Bitcoin mining industry is showing its first real signs of life since China’s sweeping crackdown sent shockwaves through the network. By early August 2021, global hashrate had clawed back roughly 20% from its late-June trough, according to data from the Cambridge Bitcoin Electricity Consumption Index, suggesting that mining hardware once powering facilities in Sichuan and Xinjiang is being successfully redeployed overseas.

TL;DR

• Bitcoin’s global hashrate recovered approximately 20% during July and August 2021 following China’s mining ban
• The United States emerged as the world’s largest Bitcoin mining hub, commanding 35.4% of global hashrate
• Kazakhstan secured second place at 18.1%, with Russia third at 11%
• China’s share of global mining dropped to near zero after accounting for over 75% at its 2019 peak
• BTC was trading around $39,200 on August 2 as the network adjusted to reduced competition among miners

From Dominance to Zero: China’s Mining Exodus

China’s relationship with Bitcoin mining had been winding down for months, but June 2021 marked the point of no return. The State Council explicitly called for a crackdown on mining and trading, prompting provincial authorities in Sichuan — long a haven for hydro-powered mining operations — to order the immediate shutdown of all crypto mining facilities.

The impact was dramatic. According to the Cambridge Centre for Alternative Finance, the initial exodus caused a roughly 38% decline in global mining activity. Mining difficulty on the Bitcoin network underwent several consecutive downward adjustments, the largest series of drops in years, as enormous swaths of computational power simply went offline.

But the story didn’t end there. What the latest CBECI data revealed for the period through August 2021 was a remarkable redistribution. The Cambridge researchers noted a 20% partial recovery in global mining output over July and August, attributing the rebound to successful overseas relocation of Chinese mining equipment.

America First: The New Mining Geography

The United States seized the opportunity presented by China’s exit and claimed the top spot in global Bitcoin mining. With 35.4% of the world’s hashrate, American mining operations — particularly those in Washington State with access to cheap hydroelectric power, and Texas with its deregulated electricity market — became the backbone of Bitcoin’s security infrastructure.

Kazakhstan emerged as the surprise runner-up. The Central Asian nation more than doubled its mining contribution since April 2021, capturing 18.1% of global hashrate by welcoming displaced Chinese miners with open arms and relatively favorable regulatory conditions. However, industry observers noted that Kazakhstan’s rapid mining growth was already straining local electricity grids, raising questions about long-term sustainability.

Russia held steady in third place at 11%, with its vast energy resources and relatively lax enforcement making it an attractive destination for mining operations seeking new homes.

What the Hashrate Recovery Means for Miners

For miners who survived the China upheaval, the network adjustment created an unexpected silver lining. With roughly a third of global hashrate knocked offline, the remaining miners found themselves with significantly higher odds of finding blocks and earning rewards. Mining difficulty adjustments made it cheaper — in computational terms — to mine Bitcoin, improving profit margins for operations in the US, Kazakhstan, and elsewhere.

This dynamic helps explain the 20% bounceback in hashrate. As difficulty dropped and mining became more profitable per unit of energy, operators who had been running below capacity ramped up, while relocated Chinese rigs began coming back online in their new host countries.

Environmental Questions Remain

The geographic shift in mining raised important questions about Bitcoin’s environmental footprint. In China, miners had developed a seasonal migration pattern, moving between coal-powered regions and areas with abundant hydroelectric power during the rainy season. With miners now scattered across multiple countries, the energy mix powering the Bitcoin network became harder to track.

Kazakhstan’s rise was particularly notable from an environmental perspective. According to the US Department of Commerce, approximately 87% of Kazakhstan’s electricity was generated from fossil fuels, with coal accounting for over 70% of generation. This meant that mining operations relocating from China’s hydro-rich provinces to Kazakhstan were likely shifting toward a more carbon-intensive energy mix.

In the US, the picture was more mixed. Operations in Washington State and other Pacific Northwest locations tapped into renewable hydroelectric power, while Texas-based miners had access to a grid with a growing wind energy component — though still heavily reliant on natural gas.

Why This Matters

The great mining migration of 2021 represented one of the most significant structural shifts in Bitcoin’s history. For the first time, the network’s security model — long concentrated in a single country — became genuinely distributed across multiple jurisdictions. While the transition caused short-term disruption and raised new environmental concerns, it arguably strengthened Bitcoin’s resilience against regulatory action from any single government. The fact that the network continued processing transactions without interruption throughout the upheaval was a powerful demonstration of Bitcoin’s decentralized design principles in action.

Disclaimer: This article is for informational purposes only and does not constitute financial advice. Past performance is not indicative of future results. Always conduct your own research before making investment decisions.