According to Odaily, stablecoin issuer Tether has increased its stake in Bitcoin mining company Bitdeer, as revealed in documents submitted to the U.S. Securities and Exchange Commission. Tether, along with its subsidiaries Tether International, SA de CV, and Tether Investments, SA de CV, now holds 31,891,689 shares of Bitdeer’s Class A common stock, representing 21.4% of the company's issued shares. Known for its stablecoin USDT, Tether has been investing in Bitcoin mining, energy, and artificial intelligence infrastructure over the past few years. Meanwhile, Bitdeer is working towards vertical integration of its Bitcoin mining operations, from silicon to energy. Recently, Bitdeer announced the test results of its SEALMINER A3 chip, which demonstrated performance below 10 J/TH in laboratory tests.