According to TechFlow, CleanSpark released data showing that it produced 643 BTC in September, bringing the total number of BTC held to 2,240. The company's CEO said that the past few months have been the most profitable quarter ever, making CleanSpark's 23rd fiscal year the best year to date. In addition, Riot Blockchain produced 362 BTC and Marathon Digital Holdings produced 1,242 BTC.