Group Network

TANAKA Kikinzoku Kogyo K.K.

The TANAKA Kikinzoku Kogyo K.K. has contributed to the advancement and progress of society through the continuous pursuit of the inherent possibilities which lie within precious metals.
The precious metals products of the TANAKA Precious Metals can be found in many products such as automobiles, electrical appliances, network equipment which surround us and enrich our lives.
The infinite potential hidden in precious metals is being utilized in such applications as clean energy, recycling, nanotechnology, biotechnology and other clean environment technologies spotlighted in recent years.
Realizing the full potential in fundamental areas, such as precious metals recycling, refining and assaying technologies is key in maintaining a world class top level.
Contributing to the realization of a leisurely and prosperous society, through the refinement of certain traditional technologies.

Company Outline

Trade name
TANAKA Kikinzoku Kogyo K.K.
2-6-6 Nihonbashi Kayabacho, Chuo-ku,
Tokyo (103-0025) Japan
The capital
500 million yen
217.2 billion yen (FY2023)
Number of employees
2,498 employees (as of December 31, 2023)
Board of Directors
Koichiro Tanaka
Sales of precious metals (platinum, gold, silver, and others). Manufacture, sales, import and export of various types of industrial precious metals products.
Refining and recycling of precious metals.
Industrial Products

Access Map

By Tokyo Metro (subway)
Kayabacho station (H13 Hibiya Line, T11 Tozai line): Exit 6, 2minute walk

By Car
We have no parking lot, please use the public parking lot nearby.


  • Iwate Plant

    Product line
    Clad materials
  • Tomioka Plant

    Product line
    Wire rod, rolled material, precious metals pipe, silver brazing alloys, electrical rivet contacte and gold and silver targets.
  • Ichikawa Plant

    Product line
    Platinum group metals compounds, catalysts and recovery and refining services
  • Sodegaura Plant

    Product line
    Recovery and refining of platinum group metals
  • Isehara Plant

    Product line
    Platinum and platinum alloy equipment used in glass melting, material for various sensor and platinum targets
  • Hiratsuka Plant

    Product line
    ・Contact Tapes
    ・Electrical components materials
    ・Fusion products
    ・Diagnostic test kits
  • Shonan Plant

    Product line
    Gold and silver compounds, refining services, recovery equipment, insoluble electrodes and thick Film pastes
  • Hiratsuka Technical Center

    Product line
    Development of high-performance materials that uses precious metals (medical, automotive and energy field)
  • Tsukuba Facility/Tsukuba Technical Center

    Product line
    Platinum group metals target fabrication, chemical products, catalyst research and development
  • Isehara Technical Center

    Product line
    Development of high-performance materials
  • FC Catalyst Development Center

    Product line
    Development and manufacturing of fuel cell electrode catalyst

Domestic Sales Office
  • Tokyo Head Office
  • Nagoya Branch
  • Osaka Branch
  • Fukuoka Branch
  • Kyoto Sales Office
Overseas Sales Office

  • Hong Kong Branch

  • TANAKA Kikinzoku International (Shanghai) Co., Ltd.

    Head Office (Shanghai)

    Shenzhen Branch

  • TANAKA Kikinzoku Korea Co., Ltd.

  • TANAKA Kikinzoku (Singapore) Private Limited

    Manila Branch

  • TANAKA Kikinzoku International (Thailand) Co., Ltd.

  • TANAKA Kikinzoku International (America), Inc.

    Head Office (Chicago)

    San Jose Branch

  • TANAKA Kikinzoku International (Europe) GmbH

  • TANAKA Kikinzoku (India) Private Limited