Internet reports that according to documents filed with the U.S. Securities and Exchange Commission, stablecoin issuer Tether increased its shareholding in bitcoin mining company Bitdeer (BTDR). Documents show that Tether and its subsidiaries Tether International, SA de CV and Tether Investments, SA de CV currently hold a total of 31,891,689 Class A ordinary shares of Bitdeer, accounting for 21.4% of the company's issued shares. Tether is known for its stablecoin USDT. However, the company has been investing in Bitcoin mining, energy and artificial intelligence infrastructure over the past few years. At the same time, Bitdeer has been seeking vertical integration of Bitcoin mining operations from silicon to energy. Bitdeeer recently announced test results of its SEALMINER A3 chip, which showed performance below 10J/TH in laboratory tests.