On October 6, 2023, CleanSpark, Inc. executed an agreement to purchase 4.4 exahashes per second (EH/s) of the recently announced Antminer S21 bitcoin mining machines, which have an efficiency rating of 17.5 joules per terahash (J/TH). The delivery of the mining machines are set to begin in January 2024. The agreement allows for 20% of the purchase price to be paid to the seller 365 days after the date that machines are delivered.

The purchase was made pursuant to the terms of a Future Sales and Purchase Agreement entered into by and between the company and BITMAIN TECHNOLOGIES DELAWARE LIMITED on October 6, 2023 . The company plans to use the mining machines to expand its digital currency mining activities through its wholly-owned subsidiaries.