United States cryptocurrency miner CleanSpark increased its Bitcoin holdings in the final month of 2024, as the company touted efficiency improvements and a sharp acceleration of hashrate growth as reasons for its success.

According to a Jan. 6 report, CleanSpark mined 668 BTC in December and 7,024 BTC for the entire year. The company’s hashrate—or the amount of computational power deployed to secure the Bitcoin network—jumped 287.9% year over year.