The UPC Group (UPC Group) was founded in 1978 with its parent company, Union Paper Cartons. (UPC), which is a manufacturer of sheets and corrugated boxes throughout the past by opening 3 branches, namely Uthai Cartons Co., Ltd. (1986), Quality Cartons Company. (1989) and Union Carton Industry Co., Ltd. (1991) to provide better quality and service of products.