Bitcoin mining firm Argo Blockhain, currently listed on the London Stock Exchange (LSE), is considering a secondary listing on Nasdaq.

The London-based miner announced the plan Tuesday, saying no decision has been made whether to go ahead.Argo also said it mined 167 bitcoin in June, compared with 166 in May."We've seen the global hashrate drop from over 150m TH/s to just 90m TH/s in the space of a month and mining difficulty adjusted to reflect this reduction," CEO Peter Wall said. "Argo has capitalized on these changes, continuing to deliver strong revenue at an impressive margin."In March Argo acquired land in West Texas for the construction of a new mining facility.