Brother Enterprises Holding Co.,Ltd. engages in the research and development, production, and sale of leather chemicals in China and internationally. It operates in six segments: Vitamins, Spices, Active Pharmaceutical Ingredients, Leather Chemicals, Chrome Salt, and Catalyst. The company offers vitamin nutritional additives, including vitamin K3, vitamin B1, nicotinamide, niacin, vitamin B5, and alanine; leather chemicals, such as chrome tanning agents, retanning agents, fatliquors, additives, etc.; and active pharmaceutical ingredients (API) comprising contrast agent APIs, topiroxostat, and the custom-made APIs and intermediates for endocrine and metabolism, nerves, respiratory, and other therapeutic areas. It also provides flavors and fragrances, which include vanillin, ethyl vanillin, other synthetic fragrances, and turpentine; molecular sieves and catalysts; and sodium dichromate, chromic acid, and chrome tanning agents. The company was formerly known as Haining Leather Chemicals Factory. Brother Enterprises Holding Co.,Ltd. was founded in 1991 and is headquartered in Haining, China.