 The directors consider Argo to be one of the most efficient miners in the sector and well placed to capitalise on the increase in the price of Bitcoin Peter Wall, chief executive What it does Argo Blockchain Plc LON:ARB is listed on the main board of the LSE and focuses on the mining of cryptocurrency. Crypto mining is the process of using powerful computers to solve complex mathematical equations and validate transactions on a decentralised ledger system known as a blockchain. 