Fuji Seimen Corporation in Chula Vista produces and distributes Japanese noodle products from its Mace Street facility in the city's southwest industrial corridor, operating as a wholesale food manufacturer since 2006. The production line supplies fresh and dried noodle varieties — udon, ramen, and soba formats — to restaurant kitchens across San Diego County, stocking the same noodle-forward menus featured at Bento & Noodles Eastlake in Chula Vista's eastern dining corridor. "Seimen" translates to "noodle making" in Japanese, and the company's name signals its single-product focus on wheat- and buckwheat-based noodle manufacturing for wholesale distribution. Wholesale accounts span independent restaurants, grocery retail, and institutional food service, with product placement reaching Asian specialty retailers including 99 Ranch Market on the South Bay grocery circuit. The Mace Street facility operates commercial noodle extruders, dough sheeters, and temperature-controlled drying racks calibrated for the 65–75°F humidity range required to produce consistent wheat-gluten elasticity in fresh udon and ramen noodle stock.