WILMINGTON, Del., and WUHAN, China, June 12 /PRNewswire/ -- As part of its strategy to expand its soy protein business in Asia, DuPont (NYSE:DD) today announced that it has reached agreement with the Yun Meng County government to acquire the Hubei Longyun Protein Food Group's soy protein facility. Estimated total investment is about $20 million (U.S.).