South Korean workers on short-term assignments, straddling the line between B-1 visas and ESTA, at a battery factory site near Savannah, Georgia. On September 4, 2025, the largest immigration raid in U.S. history based on a single worksite took place here. According to the Department of Homeland Security, 475 people were arrested that day, a significant number of whom were identified as South Korean nationals. The factory was a joint venture between Hyundai Motor and LG Energy Solution, with an investment of $4.3 billion, and many of those arrested were present for equipment installation and pre-operational testing.