CleanSpark Inc (NASDAQ:CLSK) executive chairman Matthew Schultz tells Proactive's Stephen Gunnion that the company has beaten its own growth estimates after it invested in new facilities and more rigs due to opportunities that arose over the so-called 'crypto winter'.He says the bitcoin miner has raised its year-end hashrate guidance by 10% to 5.5 exahashes per second (EH/s) after surpassing its year-end guidance more than 60 days ahead of schedule.Selling a portion of its bitcoin to fund growth as part of its capital strategy has created a virtuous cycle for CleanSpark, Schultz adds. #ProactiveInvestors #CleanSpark #bitcoin #Nasdaq