Riot Blockchain Continues Optimization of Mining Operations with Transition to Coinmint and Announces May 2020 Production

CASTLE ROCK, Colo., June 10, 2020 /PRNewswire/ — Riot Blockchain, Inc. (NASDAQ: RIOT) (“Riot” or the “Company”), one of the few Nasdaq-listed cryptocurrency mining companies in the United States, announces continued improvements and optimization of its bitcoin (“BTC”) production, via the…