1. Jinan Kevin·Z Catering Training Company: Located at No.275, Miracle Road, Huaiyin District, Jinan City, Shandong Province, it is a comprehensive catering training institution integrating food research and development, catering project training, snack training and catering consultation, including duck belly cakes.
2. Dingzheng Catering Snack Training School: located in the third street in the south area of Xinsha Industrial Park, Xiaoqing River North Road, Huaiyin District, Jinan City, it mainly engages in various trainings for breakfast, lunch and dinner, including duck belly cakes.