Nvidia CEO, US Commerce Secretary to testify before Congress.

Nvidia CEO, US Commerce Secretary to testify before Congress.

Nvidia CEO Jensen Huang and Commerce Secretary Howard Lutnick have been called to testify before the Senate Banking Committee next month.

"The latest reports raise serious concerns about our national security and the protection of sensitive US technology," said South Carolina Sen. Tim Scott, who requested the testimony.

Scott also warned that if Huang does not appear voluntarily on December 3, the committee is likely to issue a subpoena.

Congressional leaders from both political parties have voiced support for a direct hearing from Nvidia's CEO about his dealings with Chinese businessman Alice Huang, who is believed to have been recruited by China's top spy agency.