 Argo Blockchain PLC LSE:ARB, OTCQX:ARBKF, NASDAQ:ARBK, ETR:0XP reported a near sevenfold surge in earnings last year and said it expects to more than triple its Bitcoin mining capacity in the coming year as mining operations begin next month at its new Helios mining facility in Texas. Announcing results for the 2021 calendar year, in which it expanded its mining capacity from 0.6 Exahash per second EHs to 1.6 EH, the cryptocurrency miner said it expects to achieve 5.5 EHs of hashrate capacity by the end of 2022. 