Sumitomo Metal Mining Co., Ltd. (SMMYY)
OTCMKTS · Delayed Price · Currency is USD
5.88
-0.20 (-3.29%)
Jul 25, 2025, 3:58 PM EDT

Sumitomo Metal Mining Company Description

Sumitomo Metal Mining Co., Ltd., together with its subsidiaries, engages in mining, smelting, and refining non-ferrous metals in Japan and internationally.

It operates through Mineral Resources, Smelting & Refining, and Materials segments. The company provides metal products, including copper, nickel/cobalt, gold/precious metal, and others; electrolytic copper; electrolytic and handy nickel; nickel chloride, nickel sulphate, electrolytic cobalt, ferronickel, and scandium oxide; gold and silver ingot, gold and silver shot, platinum, rhodium, ruthenium, and palladium; and other metals, such as slag sand, copper sulphate, selenium, solium hydrogensulfite, gypsum, sulphuric acid, green sand, rolled copper foil, tin, copper and brass strips, and iron pellet.

It also offers powder materials comprising thick film pastes, nickel and fine copper powders, nickel oxides, absorbing materials, sputtering targets, AuSn solder materials, rare earth magnetic materials, and lubricants; package materials consisting of copper-clad laminates and printed wiring boards; Silicon Carbide; automotive, hydro processing, rejuvenation and regeneration of HPC, and petrochemical catalysts products.

In addition, the company provides water and precious metals recycling; water treatment and environment-related engineering; sterilization and property modification by irradiation; and domestic marine transportation businesses.

The company was formerly known as Seika Kogyo (Mining) Co., Ltd. and changed its name to Sumitomo Metal Mining Co., Ltd. in June 1952.

Sumitomo Metal Mining Co., Ltd. was founded in 1590 and is headquartered in Tokyo, Japan.

Sumitomo Metal Mining Co., Ltd.
CountryJapan
Founded1590
IndustryOther Industrial Metals & Mining
SectorMaterials
Employees7,402
CEONobuhiro Matsumoto

Contact Details

Address:
Shimbashi Sumitomo Building
Tokyo, Tokyo 105-8716
Japan
Phone81 3 3436 7705
Websitesmm.co.jp

Stock Details

Ticker SymbolSMMYY
ExchangeOTCMKTS
Fiscal YearApril - March
Reporting CurrencyJPY
ISIN NumberUS86563T1043
SIC Code3330

Key Executives

NamePosition
Nobuhiro MatsumotoPresident, Chief Executive Officer and Director
Yasuhiro MiyakeExecutive Officer and GM of Finance and Accounting Dept.
Toru MotokiManaging Executive Officer and GM of Technology Div.
Mihoko YanoExecutive Officer and GM of Human Resources Department
Hiroshi YoshidaManaging Executive Officer, GM of Corporate Planning Dept. and Director
Masaru TakebayashiManaging Executive Officer, GM of Metals Division and Director
Shinichi SatoManaging Executive Officer and GM of Functional Materials Business Headquarters
Takahiro HagiwaraExecutive Officer, GM of Sustainability Division and Deputy Head of Resource Division
Ryoichi SatoHead of Functional Materials Division
Koji SakamotoHead of Engineering Division