Riot Blockchain submits annual report to U.S. SEC, revealing concerns over outbreak affecting its crypto mining business

NASDAQ-listed company Riot Blockchain submits its annual report to the US Securities and Exchange Commission (SEC). Riot Blockchain added a section to the "General Risks" section of the report to discuss new crown pneumonia and revealed concerns that the outbreak would affect its crypto mining business. Documents show that the company's workers are now self-segregated, while its supply chain is paralyzed by border restrictions and factory closures.