Hyundai is investigating child labor in its US supply chain after a Reuters report documented children, including a 12-year-old, working at a Hyundai-controlled metal stamping plant in Alabama. The plant, SMART Alabama, LLC, claims to have taken steps to remedy the situation after learning a subcontractor had provided underage workers. The incident has sparked discussion about labor practices and exploitation in the US. The use of child labor in US-based factories, particularly those owned by foreign companies, is a complex issue with various factors at play.