DULUTH, Ga.–(BUSINESS WIRE)–As Korean companies accelerate their expansion into the United States—building manufacturing plants across the Midwest, Southeast, and beyond—the headlines often focus on investment size, job creation, and government incentives. What is rarely discussed, however, is the invisible support system that determines whether those multi-billion-dollar projects succeed or struggle once construction begins. Behind many of these projects stands C&Y Engineering, a U.S.-li