Company Description. Wei-Chuan U.S.A., Inc. Founded in 1972 in Los Angeles, Wei-Chuan USA is a leading manufacturer and distributor of authentic Chinese frozen foods across North America. Our products — including dumplings, potstickers, spring rolls, buns, and vegetarian options — bring traditional flavors to modern tables. With USDA-inspected facilities and a commitment to innovation, we combine authentic taste, quality, and convenience. Guided ...