Business operations of PT Sumitomo Indonesia are organized under five businesses units involving metal products; transportation and construction systems; environment and infrastructure; media, ICT, lifestyle related goods and services; and mineral resources, energy, chemical, and electronics products. 

This organization system leads PT Sumitomo Indonesia to integrate people with different and high quality competencies, background and experience in order to develop innovative outcomes for both products and services. PT Sumitomo Indonesia called this organization system with “Business Unit Management System”. Along with the aforementioned five business units, there are corporate units which role is to support the business units’ smooth operations.