Rakuten is mainly engaged in the Internet-related business. Along with its affiliates, Co. operates in two business segments. The Internet Services segment is engaged in the operation of electronic commerce sites, including an Internet shopping mall "Rakuten Ichiba," an online cash back site, a travel booking site, portal sites and digital contents sites; the sale of advertising on Co.'s sites; the provision of messaging and communication services; and the management of a professional baseball team "Tohoku Rakuten Golden Eagles." FinTech segment is engaged in the provision of Internet banking services and online securities trading services, and the credit card and life insurance businesses.

Singapore Telecommunications is engaged in the operation and provision of telecommunications systems and services, and investment holding. Co. provides a range of multimedia and Information and communications technology solutions, including voice, data and video services over fixed and wireless platforms. Within both Singapore and Australia, Co. provides mobile communications, data and Internet, national telephone, information technology and engineering, sale of equipment, international telephone and pay television. Co.'s key businesses include: Group Consumer, Group Digital L!fe, and Group Information and communications technology.