A Reuters investigative report in July documented children, including a 12-year-old, working at a Hyundai-controlled metal stamping plant in rural Luverne, Alabama, called SMART Alabama, LLC.
read moreFollowing the Reuters report, Alabama's state Department of Labor, in coordination with federal agencies, began investigating SMART Alabama.
The executive also pledged that Hyundai would push to stop relying on third party labor suppliers at its southern U.S. operations.
Munoz told Reuters: "Hyundai is pushing to stop using third party labor suppliers, and oversee hiring directly."
SL and Smart Alabama did not immediately respond to requests for comment.