Shandong Ruiheng Biotech Co., Ltd. is a biotechnology company specializing in the production and sale of food additives and preservatives, such as benzoic acid, calcium acetate, calcium propionate, potassium sorbate, and sodium benzoate. Established in the Lunan Hi-Tech Chemical Park, the company focuses on providing high-quality additives for the global market, adhering to international quality standards, including kosher certification.