According to Odaily Planet Daily, U.S. Republican Congressman Zachary Nunn has called on the federal government to scrutinize Bitcoin mining hardware manufacturers Bitmain and Cango Inc., claiming their growing presence in the United States could pose a national security risk. Nunn noted that Bitmain and Cango "appear to be expanding their U.S. operations through complex ownership structures and financing arrangements, with transparency potentially inaccessible to regulators and the public." Representatives for both Bitmain and Cango stated that they strictly abide by all U.S. laws and have no ties to any government or state-owned enterprise. Bitmain stated that it was aware of rumors regarding its planned acquisition of Cango, but that "these rumors are completely untrue." It also denied exploring direct ownership of U.S. power plants and called the suggestion that its mining rigs could impact infrastructure "unfounded." Cango stated that it does not comment on "market rumors" or potential mergers and acquisitions.

Nunn asked the Committee on Foreign Investment in the United States (CFIUS), chaired by Bessent, to launch an investigation. The interagency committee reviews national security risks posed by foreign companies entering the U.S. market. Nunn urged CFIUS to investigate several specific allegations, including "potential ties" between Cango and foreign government actors, Bitmain's "potential acquisition" of Cango, and Cango's electricity usage in the United States. Nunn serves on a congressional subcommittee that examines U.S.-China competition in the defense, technology, and economic sectors. (Bloomberg)