Sumitomo Electric Industries, Ltd.
A global company that contributes to the development of social infrastructure by developing a wide range of businesses in five areas: automotives, information and communications, electronics, electric wires and equipment and energy, and industrial materials through original R & D.
Sumitomo Electric Tool Net, Inc.
A sales company that plays a central role in domestic sales of Sumitomo Electric Hard Metal Corp. and has established regional-based bases nationwide.
Hokkaido Sumiden Precision Co., Ltd.
An automated mass production plant for the "Igetalloy" cutting edge replacement insert, which is at the forefront of the mechatronics era.
Tohoku Sumiden Precision Co., Ltd.
"Igetalloy" manufacturing base with steel tool (milling cutter), high-efficiency line of MULTIDRILL, latest processing technology, and service function of Tohoku area.
Tokai Sumiden Precision Co., Ltd.
"Igetalloy" manufacturing base with both service functions in the Chukyo area and mass-production functions for specified products.
Kyushu Sumiden Seimitsu Ltd.
The world's leading electronics industry in Japan. A mass-production plant for "Igetalloy" precision tools that supports the foundation.
A comprehensive manufacturer of tungsten products/molybdenum products/heat radiation board materials and diamond tools and CBN tools.
Manufacture and sale of cemented carbide materials for circular cutting tools such as drills and endmills; manufacture and sale of other cemented carbide materials.
Total alloy type supplier involved in the development, manufacture and sale of molds for forging.
Sunray Reinetsu Co., Ltd.
Sumitomo Electric Industrial Group. Manufacture and sale of combustion equipment (burners), environmental equipment, and industrial equipment.