索宝蛋白：公司主营业务为大豆蛋白系列产品的研发、生产和销售

Group 1 - The core business of the company is the research, production, and sales of soybean protein series products [1] - The main product, soybean protein, is used in the production of health supplement protein powder [1] - The company has a stake in Shandong Meijike Biotechnology Co., Ltd., which focuses on the research, production, and sales of health food [1]