https://wccftech.com/nvidias-arm-deal-will-be-investigated-for-national-security-concerns/

Nvidia CEO. Mr. Jen-Hsun Huang at Computex, Taipei in 2017; Associated Press

NVIDIA Corporation's $40 billion acquisition offer for British chip design house Arm. Ltd. has been referred by the U.K. Secretary of State for Digital, Culture, Media and Sport, Mr. Oliver Dowden, to the country's Competiton and Markets Authority (CMA) for an investigation to determine if it goes against British national security. Arm Ltd. is owned by the Japanese investment bank Softbank and is headquartered in the United Kingdom. Mr. Dowden's actions stem from powers granted to him under Britain's Enterprise Act of 2002, which allows the secretary to as the CMA to determine if a proposed business deal might result in harming several public interests, with national security being one of them.