Craig Sellars, co-founder of stablecoin issuer Tether, has invested $1 million in medical technology company Singular Health Group. It is reported that the investment transaction has been officially approved by shareholders at the company's recent shareholder meeting. Craig Sellars will receive about 6.70 million shares of Singular Health Group at the issue price of 15 cents per share. At present, Craig Sellars has not disclosed the reason for this investment. It is reported that he may use his contacts and resources in blockchain technology, digital identity, consumer-facing technology applications and privacy protection record platform to support the company.