Shandong Jianzhong Food Co., Ltd., established in 2000, spans 37,000 square meters and includes a canned vegetable production workshop. Its subsidiary, Shandong Sangongju Food Co., Ltd., operates under the brand "Sangongju." The company specializes in canned vegetables, managing every step from planting in a 10,000-mu base to canning and processing. Their products are exported to Europe, the United States, Spain, Germany, Russia, Southeast Asia, Central Asia, and beyond.