Corporate Profile

While electronics technology attracts attention, copper plays an important role in all aspects of the industry as a material that forms the foundation.
As a leading manufacturer of lead frame materials for semiconductor devices and terminal connector materials for automobiles, we are contributing to technological innovation while responding to various user's needs. In addition, we are focusing on improving the processing field of copper, and especially involved in the development of high strength copper alloy, high technology in processing and surface treatment, manufacturing precision pressed products for electronic parts, and manufacturing metal flexible hose for gas piping. Also, we are working on expanding the area of the field of functional thin films based on experienced vacuum vapor deposition technology, by developing desired materials in the electronic materials and others with various ideas.

Corporate Profile

head office

Date of Establishment May 20, 1925
Paid-in Capital ¥8.7 billion
Net Sales ¥128 billion (FY2015)
Number of Employees 1040 (As of March 2016)
President Mr. Kazumasa Hori
Product Lines Nonferrous metals copper and copper alloy (sheet and plate, strip, rod and bar) Fabricated copper products (rounds, electronic materials, gas flexible metal connectors, contour strips) Metallized products (metallized film for condensers, etc.)
Plants and Research Facilities Head Office, Tokyo Regional Head Office, Osaka Regional Head Office, Nagoya Regional Head Office, Tokyo Office, Osaka Office, Nagoya Branch, Wakamatsu Plant, Sambo Plant, Beijing Office
Domestic affiliates Gotoh MFG Co., Ltd.,
Tamagawa Seisakusho Co., Ltd.,
Tamagawa Engineering Co., Ltd.,
Sambo Metal Sales Co., Ltd.,
Sambo Forging Co., Ltd.,
Sambo Electrical Wire Sales Co.,
Ryosei Amagasaki Electric Wire Co., Ltd.
Foreign affiliates RYOSHINDOH MANUFACTURING.SDN. BHD
SAMBO SHINDO (THAILAND) CO., LTD. (Thailand)
GOTOH PHILIPPINES CORPORATION (Philippines)
QINGDAO ECOBRASS CO., LTD.

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