Prince Pharmaceutical Co., Ltd. (6935.TWO) manufactures active pharmaceutical ingredients, primarily vitamin B1 derivatives, and health food products. The company produces vitamin B1 APIs compliant with USP, JP, and JPC pharmacopoeias; health foods via OEM operations; and western medicines including formulations such as injections, tablets, capsules, ointments, and powders. It operates APIs production facilities in Hsinchu Industrial Park, food factories in Xinpu and additional sites in Hsinchu County, with headquarters in Huwei Township, Yunlin County, Taiwan; founded in 1962, it supplies products to Taiwan, Japan, Europe including Spain, South Korea, Singapore, and other markets. Certifications encompass PIC/S GMP, cGMP, ISO 9001, ISO 22000, HACCP, GMP, and TQF for its plants. Nanpao Group became a shareholder in 2016, marking a key ownership change; the company completed product development in 2017 and reported health food sales growth to NT$554 million in 2024 alongside western medicine revenues, reflecting sustained operations in its core segments.