Corporate Social Responsibility: Values Created by TANAKA

Businesses of TANAKA and Values Provided by It

TANAKA has delivered special values based on precious metals to the world for more than 130 years since the foundation. We will continue to try everything we can do with precious metals and develop new fields.

Values Created by TANAKA

Industrial products
We provide customers in a very wide variety of fields, ranging from semiconductors and electronic parts to medicine and food, with products that solve their problems.
We underpin the industry in general and the foundation of society through the supply of precious metal materials as an "unsung hero."

AuAg Company

Supply of gold, silver and alloy metal-based materials (electrical contacts, target materials, joining materials, etc.)

Chemical Recovery Company

Supply of paste, catalyst and compounds based on the world-class precious metal recovery and refining technology

PGM Company

Supply of platinum group materials (platinum devices for glass dissolution, targets for harddisks, ultrafine wires for sensors and medical uses)

Semiconductor Company

Supply of materials for semiconductor devices (bonding wires, plating solutions and devices)

New Business Company

Creation and commercialization of new precious metal products that contribute to society

*The organizations above are in-house companies set up by Tanaka Kikinzoku Kogyo K.K. for six business areas. They also work together with other Group companies.

We offer options to readily use platinum, gold and silver as valuable and reliable assets.

  • Bullion

  • Coin

  • Accumulation services

We deliver jewelry, which shines brightly in various scenes of life, with reliable quality that is worth treasuring for a long time.

  • Jewelry

  • Bridal jewelry

  • Artifacts

Domestic bases

TANAKA Holdings Co., Ltd. (THD)
  • Headquarters (Tokyo)
Tanaka Kikinzoku Kogyo K.K. (TKK)
  • Headquarters (Tokyo)
  • Iwate Plant
  • Tomioka Plant
  • Ichikawa Plant
  • Sodegaura Plant
  • Isehara Plant
  • Hiratsuka Plant
  • Shonan Plant
  • Hiratsuka Technical Center
  • Tsukuba Facility / Tsukuba Technical Center
  • Isehara Technical Center
  • FC Catalyst Development Center
  • Tanaka Distribution Center
  • Nagoya Branch
  • Osaka Branch
  • Fukuoka Branch
  • Kyoto Sales Office
Tanaka Denshi Kogyo K.K. (TD)
  • Saga Production Headquarters
  • Tokyo Office
  • Shonan Satellite Plant
Electroplating Engineers of Japan, Limited (EEJA)
  • Headquarters (Tokyo)
  • Hiratsuka Office
Tanaka Kikinzoku Jewelry K.K. (TKJ)


  • Main Store (Ginza)
  • Shinjuku Store
  • Store at Hotel Chinzanso Tokyo
  • Isetan Tachikawa
  • Yokohama-Motomachi Store
  • Sendai Store
  • Niigata Mitsukoshi
  • Nagoya Store
  • Nagoya Mitsukoshi Sakae
  • Shinsaibashi Store
  • Takamatsu Mitsukoshi
  • Fukuoka Nishitetsu Grand Hotel Store
Nippon PGM Co., Ltd. (PGM)
  • Headquarters (Tokyo)
  • Kosaka Plant

Overseas bases

Tanaka Kikinzoku Kogyo K.K. (TKK)
  • Taiwan Tanaka Kikinzoku Kogyo Co., Ltd
  • Tanaka Kikinzoku (Ningbo) Co., Ltd.
  • Tanaka Kikinzoku (Chengdu) Co., Ltd.
  • Seoul Branch
  • Hong Kong Branch
  • Taipei Branch • Kaohsiung Sales Office
  • Tanaka Kikinzoku International (Shanghai) Co., Ltd
  • Tanaka Kikinzoku International (Shanghai) Shenzhen Branch
  • Tanaka Kikinzoku International (Singapore) Pte., Ltd.
  • Tanaka Kikinzoku International (Singapore) Pte., Ltd. Manila Branch
  • Tanaka Kikinzoku International (Thailand) Co., Ltd.
  • Tanaka Kikinzoku International (America) Inc.
  • Tanaka Kikinzoku International (America) Inc. San Jose Branch
  • TANAKA America, Inc.
  • Tanaka Kikinzoku International (Europe) GmbH
Tanaka Denshi Kogyo K.K. (TD)
  • Tanaka Electronics Singapore Pte. Ltd. (TES)
  • Tanaka Electronics Malaysia Sdn. Bhd. (TEM)
  • Tanaka Electronics (Hangzhou) Co., Ltd. (TEC)
  • Tanaka Electronics Taiwan Co., Ltd. (TET)
  • Tanaka Electronics Taiwan Co., Ltd. Technical Center (TET/TC)
Electroplating Engineers of Japan, Limited (EEJA)
  • EEJA (Shanghai) Co., Ltd.
Heesung Metal Ltd. (HEESUNG)
Nippon PGM Co., Ltd. (PGM)
Chengdu Guangming Paite Precious Metal Co., Ltd. (GMPT)
Metalor Technologies International SA

(Data as of May 31, 2018)