CleanSpark Inc. reported strong operational performance for May 2025, pushing closer to its goal of becoming the first publicly traded Bitcoin miner to reach 50 exahashes per second (EH/s) entirely through self-operated infrastructure.
The Las Vegas-based company ended the month with a hashrate of 45.6 EH/s, up 7.5% from April, and increased its total Bitcoin holdings to 12,502 BTC—double the amount held a year ago.
Introducing $CLSK‘s May #Bitcoin mining update:
*Bitcoin produced in May: 694
*Total bitcoin holdings as of May 31: 12,502¹
*Doubles BTC treasury year-over-year 🌟🌟
*Month-end operating hashrate: 45.6 EH/s
*Approaches 50 EH/s milestone with fully self-operated infrastructure… pic.twitter.com/qjE1C6GEBC— CleanSpark Inc. (@CleanSpark_Inc) June 3, 2025
The company produced 694 Bitcoins in May while maintaining an average hashrate of 42.5 EH/s and a daily output of 22.39 BTC. The highest single-day production hit 23.5 BTC. Sales for the month totalled 293.5 Bitcoin at an average price of approximately $102,254 per coin. As of May 31, 2,210 of its total Bitcoin holdings were posted as collateral.
CEO and President Zach Bradford credited the company’s vertically integrated strategy for the gains, noting that the entire BTC treasury was built through self-mining, with no equity financing since November 2024.
CleanSpark also made its presence felt at the Bitcoin 2025 conference in Las Vegas, where company executives discussed mining trends, energy strategy, and treasury management. The company now ranks as the sixth-largest public Bitcoin holder, all acquired through in-house mining, further validating its infrastructure-first approach, according to Bradford.
With a deployed fleet of 230,232 machines and an average fleet efficiency of 16.71 joules per terahash, CleanSpark continues to distinguish itself as one of the few pure-play, vertically integrated miners in the U.S. public market. Total Bitcoin mined year-to-date stands at 3,283.
CleanSpark noted that actual performance may fluctuate and that future expansion will depend on market conditions, including Bitcoin pricing and energy availability. However, management remains confident in its strategy, pointing to consistent execution and a robust development pipeline as key drivers of continued growth.
This sustained trajectory follows a productive end to 2024, when CleanSpark mined 668 Bitcoin in December, further solidifying its status as a leading North American mining operation.
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