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Ruihai Group is a comprehensive chemical enterprise committed to the research and development, production and technical services of biological fine chemicals and casting functional materials. The main investor is Shandong Ruihai Investment Co., Ltd. Since its establishment in 1999, it has been committed to the research and development, production, sales and technical services of new materials with green fine chemical and casting functions. At present, the group mainly has Shandong Ruihai New Material Technology Co., Ltd., Shandong Ruihai Mishan Chemical Co., Ltd., Shandong Ruihai Jinshan Chemical Co., Ltd., with about 700 employees, including more than 100 senior professional and technical personnel, product development ability and technical equipment level in the domestic industry leading position.