 Argo Blockchain PLC LSE:ARB, OTCQX:ARBKF, NASDAQ:ARBK, ETR:0XP reported a 24 increase in first-quarter earnings on revenues up 9 as it increased it mining hashrate and prepared to begin operations at the cutting-edge Helios facility in Texas, which opened this month. The cryptocurrency miner generated underlying earnings adjusted EBITDA of US19.1mln 14.5mln for the first three months of 2022, compared to US15.4mln a year earlier. 