Luoyang Longmen Pharmaceutical Co., Ltd formerly operated as Yanshi Lactate Limited Company, established in 1996. It focuses on the production of active pharmaceutical ingredients (APIs), such as pharmaceutical grade calcium lactate, calcium hydrogen phosphate, sodium lactate solution, and lactic acid. To meet customer demands for high-quality and large-quantity products, the company relocated its operations to Luoning Industrial Park, where a new building was reconstructed and completed in 2014. The new plant spans an area of 30000 square meters, with fixed assets amounting to ninety six million Yuan (RMB).