Bitcoin Miner CleanSpark Logged 685 BTC Production in June, Posting 16.15 J/TH Efficiency

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

CleanSpark (CLSK) has reached a significant operational milestone, surpassing 50 exahashes per second (EH/s) in bitcoin mining capacity in June while expanding operations across four U.S. states. The company also improved its fleet efficiency to an average of 16.15 joules per terahash (J/TH).

In June, the Las Vegas-based miner produced 685 BTC, lifting its year-to-date total to 3,968 BTC—all mined entirely from its own infrastructure. CleanSpark now holds 12,608 BTC in its treasury, making it the seventh-largest publicly traded bitcoin holder, edging past Tesla.

Last month, CleanSpark sold 578.51 BTC for $61.2 million in proceeds, achieving an average sale price of $105,860—above the month’s volume-weighted average price.

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

The company also announced new agreements securing an additional 179 megawatts (MW) of power capacity, bringing its total contracted capacity to 987 MW. This expansion is expected to support over 10 EH/s of future mining growth.

Additionally, CleanSpark rolled out its Digital Asset Management program, which integrates spot bitcoin sales and derivatives strategies to optimize returns. The initiative began contributing positively in June, aligning with the company’s focus on operational efficiency and long-term growth.