The government has ordered an in-depth investigation into the takeover of the Cambridge-based chip designer Arm by its US rival Nvidia, in a move that could result in the $54bn deal being blocked.
Nadine Dorries, the digital and culture secretary, has ordered the UK competition watchdog to launch a “phase 2” investigation on public interest grounds, citing competition and national security concerns.
The move follows the Competition and Markets Authority’s initial findings in July that the deal raised serious competition concerns, and the regulator’s assessment that no “behavioural remedy” offered by Nvidia would be enough to address them.
Arm has been described as the “Switzerland” of the semiconductor industry, with its designs used in chips
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