Summi (Group) Holdings Limited, an investment holding company, primarily engages in the production and sale of frozen concentrated orange juice and its related products. The company produces and sells freshly squeezed and frozen concentrated orange juice, and other products under the Summi brand. It also sells food and beverage products. The company sells its products to food and beverages manufacturers, wholesalers, distributors, retailers, and restaurants. It operates in Mainland China and Hong Kong. The company was founded in 1991 and is headquartered in Kowloon, Hong Kong. Summi (Group) Holdings Limited operates as a subsidiary of Rui Er Holdings Company Limited.