Founded: 1590 (Tensho 18)
Founded
Established: 1950 (Showa 25)
Established
Received the 1st place in the ASEAN Mineral Award in 2019.
Sumitomo Metal Mining Co., Ltd. updated its corporate governance report on March 23, 2026. The report includes disclosures in English and lists the number and percentage of shares held by major shareholders.
The Sumitomo Metal Mining's indigenous vegetable cultivation support project "Save Endangered Vegetables" received the Gold Award in the PR & ESG category of the Jolbors Awards International 2026. The comprehensive efforts to supply heat‑shielding agricultural nets utilizing SOLAMENT and to enhance awareness and cultivation inheritance of indigenous vegetables were evaluated.
Shukou Logistics Co., Ltd. built the high-speed passenger ship "Hakusei" for commuting to Shishaku Refinery and held its launching ceremony on September 29. After trial runs, it is scheduled to commence operations in December. With two commuter ships, the travel time to Shishaku Refinery is expected to be shortened to about two-thirds of the current ship's time.
Sumitomo Metal Mining has disclosed the group's nature-related information, referencing the TNFD disclosure framework and the LEAP approach. It aims to contribute to sustainable development of society by avoiding and minimizing negative impacts on nature from business activities, and through nature restoration and conservation.
Sumitomo Metal Mining's subsidiary, Taganito HPAL Nickel Co., donated the Clover Community Hospital to the city of Clover and held a handover ceremony. The hospital was built to provide high-quality medical care to local residents, with the company contributing the majority of the funding. Sumitomo Metal Mining considers coexistence and mutual prosperity with the local community a key issue and is promoting sustainable regional development.
Sumitomo Metal Mining Co., Ltd. will participate in CEATEC 2026, held at Makuhari Messe from October 13 to October 16, and will join as a BASC member company exhibiting at the booth (booth number: 6H141) of the Battery Supply Chain Council (BASC). The company will disseminate information about the overall picture of the battery storage supply chain and provide information related to battery materials and battery recycling.
Sumiko Resources Development Co., Ltd. has begun research and development on the generation and recovery of natural hydrogen, specifically on the three-dimensional visualization of serpentinization states related to the enhancement of hydrogen potential. This research has been adopted as part of NEDO's Frontier Development Program.
Sumitomo Metal Mining Co., Ltd. has updated related pages focusing on the performance and initiatives of each KPI for key sustainability issues. The updated page can be viewed at https://www.smm.co.jp/sustainability/.
Sumitomo Metal Mining Co., Ltd. announced a notice regarding the receipt of dividends from its consolidated subsidiaries on September 30, 2026. Please refer to the attached PDF for details.
Sumitomo Metal Mining Co., Ltd. announced that it received dividends from consolidated subsidiaries on September 30, 2026. Please refer to the PDF for details.