 Argo Blockchain PLC LSE:ARB, OTCQX:ARBKF, NASDAQ:ARBK, ETR:0XP 147 mined bitcoin BTC or bitcoin equivalents in December compared to 198 the month prior, according to the groups latest operational update. The month-on-month reduction was due to the curtailment of mining operations at the Helios facility in Texas in response to a winter storm that impacted much of the US. 