Hunan Huamin Holdings Co., Ltd. engages in the research, development, promotion, and application of new materials. Its products include wear-resistant cast iron grinding balls, integral step type lining plates, wear-resistant plastic and cast steel combined lining plates, split step type lining plates, and discharge grate rings. The company was founded by Hong Yu Zhu on July 31, 1995 and is headquartered in Changsha, China.