In June, Bitcoin Miner CleanSpark Generated 685 BTC and Reached 16.15 J/TH Efficiency

CleanSpark Surpasses 50 EH/s, Expands Bitcoin Holdings to Over 12,600 BTC

CleanSpark (CLSK) has hit a significant milestone, surpassing 50 exahashes per second (EH/s) of bitcoin mining power in June as it continued expanding operations across four states. The company’s mining fleet also improved its average efficiency to 16.15 joules per terahash (J/TH).

In June, the Las Vegas-based bitcoin miner produced 685 BTC, bringing its total for the first half of 2025 to 3,968 BTC—all mined directly from its own facilities. CleanSpark’s bitcoin treasury now stands at 12,608 BTC, making it the seventh-largest publicly listed holder of bitcoin, ahead of Tesla.

The firm sold 578.51 BTC last month, generating approximately $61.2 million in proceeds at an average price of $105,860 per bitcoin—above the volume-weighted average price for June.

“June 2025 was a significant month for CleanSpark as we reached our mid-year goal of 50 EH/s entirely through our self-mining operations,” said CEO Zach Bradford.

The company also secured contracts for an additional 179 megawatts (MW) of power capacity, increasing its total contracted capacity to 987 MW. The added energy is expected to support over 10 EH/s of further mining expansion.

Meanwhile, CleanSpark launched its Digital Asset Management program, which integrates spot bitcoin sales with derivatives strategies. The initiative began delivering positive returns in June, contributing to the company’s broader efforts to enhance operational efficiency and optimize its mining performance.