About Sumitomo Electric
The Sumitomo Spirit and the Sumitomo Electric Group Corporate Principles
The Sumitomo Spirit grew out of the guiding principles set down in his later years by the founding father of the House of Sumitomo, Masatomo Sumitomo (1585 - 1652), in Monjuin Shiigaki (the Aphorisms of Monjuin, which describes how a merchant should conduct his business).
Our Businesses and the Trajectory of Our Growth
The Sumitomo Electric Group was founded as a manufacturer of electric wires and cables, but in the 1950s, we decided to diversify our business to accurately grasp changes in the world and respond to them.
Sumitomo Electric's Connectivity and Transmission Technologies in Society
You can't always see them, but the Sumitomo Electric Group's products are keeping our daily lives running.
Mid-term Management Plan: VISION 2022
Aiming to become a “Glorious Excellent Company”
At a Glance
We started manufacturing from the age of horse-drawn carriages and have grown into a huge company with more than 280,000 employees.