Argo Blockchain PLC (LON:ARB), has moved to strengthen its position among US investors with the appointment of XMS Capital Partners.

Peter Wall, the bitcoin miner’s chief executive, said: “Following our listing on the OTCQB market earlier this week, we are seeking to strengthen our visibility in the US market and build investor relationships. XMS is perfectly placed to help us achieve our goals.”

AIM-listed Argo has seen its share price in London rise more than six-fold in the past month on the back of the surge in the value of bitcoin and other cryptocurrencies.

Yesterday, Argo announced it was raising £22.4mln through a placing at 80p to expand its bitcoin mining capability.

The expansion will increase its computer processing power by more than 50%.