Riot Blockchain announces purchase of additional 1,000 next generation Bitmain S17 Pro Antminers, completing upgrade of its Oklahoma City Mining Facility

Riot Blockchain, Inc. (NASDAQ: RIOT) ("Riot" or the "Company"), one of the few Nasdaq listed public cryptocurrency mining companies in the United States, announced the purchase of an additional 1,000 next generation Bitmain S17 Pro Antminers for approximately USD $1.35 million from BitmainTech PTE. LTD. ("Bitmain"). On December 4, 2019, Riot announced that it had purchased 3,000 S17 Pro miners.
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