Brother Enterprises Holding Co.,Ltd. engages in the research, development, production, and sale of fine chemicals in China and internationally. The company offers vitamin supplements, such as vitamin K3, vitamin B1, nicotinamide, niacin, vitamin B5, and aminopropionic acid; chrome tanning agents, retanning agents, fatliquoring agents, and auxiliaries; and contrast agent APIs and intermediates, topirostat and its intermediates, and custom processing of APIs and intermediates. It also provides synthetic fragrances, including vanillin and ethyl vanillin for food, daily chemical, and other industries; molecular sieves and catalysts; and sodium dichromate, chromic acid, and chromium 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.