Graystone (OTCPK:GYST) announced the successful expansion of its bitcoin mining operations. Post placing an order for 10 units of S19j Pro, the company was able to secure the purchase of 15 additional machines, thereby, increasing the number of units purchased to 25 total. This new equipment is scheduled for December delivery and is expected to be installed in January 2022. The cost to host the units is estimated at $185/unit per month. Post installation and operational, the company is expected to generate $487,756 in yearly revenue, $82,536 in yearly machines expenses and $405,220 in yearly operational profit.
