Sumitomo Metal Mining co.,Ltd

Sumitomo Metal Mining Co., Ltd. (SMM) is a core company of the Sumitomo Group with a history spanning over 430 years. The company engages in an integrated business model covering everything from mining development and non-ferrous metal smelting to the manufacturing of advanced materials. Founded with the development of the Besshi Copper Mine in the 16th century, SMM has built its reputation and technological expertise on resource development, contributing to the growth of industries and society worldwide.

Our business is structured into three main segments: Resources, Smelting & Refining, and Materials. In the Resources segment, we develop and operate copper and nickel mines around the world, ensuring a stable supply of essential resources. In the Smelting & Refining segment, we possess world-class nickel and copper smelting technologies and have established highly efficient, environmentally conscious production systems. In the Materials segment, we manufacture advanced materials such as cathode materials for secondary batteries, functional thin films, and electronic materials. More recently, we have developed cutting-edge solutions like SOLAMENT™, an infrared control material, to deliver innovative solutions across industries including electronics, mobility, energy, and agriculture.