 CleanSpark Inc NASDAQ:CLSK said it has purchased new immersion cooling infrastructure for its Norcross bitcoin mining facility that is expected to increase mining efficiency by at least 20. The 20 megawatt MW project will consist of 180 liquid-filled tanks, each containing 33 units of the Antminer S19j Pro machines, which CleanSpark said are the newest generation series of bitcoin miners on the market, fully immersed in a proprietary cooling liquid. 