Brother Enterprises Holding Co.,Ltd. engages in the production and sale of leather chemicals in China and internationally. It operates in four divisions: Leather Chemicals, Vitamins, Spices, and Active Pharmaceutical Ingredients. 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, and other synthetic fragrances, as well as turpentine for food, daily chemical, and other industries; molecular sieves and catalysts; and sodium dichromate, chromic acid, and chrome tanning agent. 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.