CleanSpark (NASDAQ:CLSK) has taken over an existing purchase contract for 1,800 Antminer S19 XP units, part of the bitcoin miner's plan to expand its infrastructure, it announced Thursday. In addition, the company is partnering with TMGcore to expand its immersion-cooled infrastructure for sustainable mining. The partnership includes 257 units of TMGcore's immersion-cooled tanks designed to improve the performance of mining machines while substantially decreasing their failure rates over long-term use. Each tank fits 28 Antminer S19j Pro mining machines. The new machines are expected to add more than 252 petahashes per second (PH/s) to CleanSpark's (CLSK) mining capacity. CleanSpark (CLSK) mined 312 bitcoins in May