South Korean businesses plan to invest about $150 billion in the United States, according to comments by Ryu Jin, chairman of the Federation of Korean Industries, reported by Yonhap and Reuters late Monday. The prospective spending forms part of a broader trade agreement between Seoul and Washington that seeks to deepen industrial and supply-chain ties. Specific sectors and timelines have not yet been detailed, but the scale of the pledge underscores South Korea’s strategy of expanding its manufacturing and technology footprint in the world’s largest economy.