In its updates on continued expansion of its bitcoin mining operations, Graystone (OTCPK:GYST -3.0%) secured the purchase of 16 additional machines; scheduled for February shipment and is expected to be installed and operational in April 2022. This is post a few weeks when a order of 25 units of S19j Pro was placed thereby increasing the number of units purchased to 41. The cost to host the units is estimated at $185/unit/month. The company is currently planning on acquiring 10-20 machines per month for the next 6 months and then increasing our purchases to 20-30 machines per month. By 2022 end, the company will be enabled to mine up to 300 machines; revenue will begin to increase as mining hash-power increases as the new machines are installed beginning January 2022.