TOKYO -- SoftBank Group's attempt to sell U.K. chip designer Arm to U.S. chipmaker Nvidia is hitting regulatory roadblocks in major markets, as the blockbuster deal has raised antitrust and national security concerns among policymakers.
Technology
SoftBank's plan to sell Arm to NVIDIA is hitting antitrust wall around the world
Experts also point to national security hurdles for the $40bn deal



