Since it was established in 1946, Daido Kogyo, as a core trading company of the Daido Special Steel Group, has supported the development of various industrial fields and social lifestyles, including automobiles, industrial machinery, aircraft, ships, and IT-related industries, through the procurement of raw materials and materials that support the manufacturing of special steel, the introduction of machinery and equipment, and the sale of products.

Today, corporations are playing an increasingly important role in protecting the environment. At the same time, our market is undergoing structural change at a faster pace than ever before. Specialty steel materials and related products are indispensable for contributing to the realization of a sustainable society and for our daily life.

We handle a large number of other products, such as magnets, with special steels. We will respond to commoditization in a wide range of fields and to changes and demands in the market by enhancing expertise and mobility to differentiate ourselves and gain a competitive edge in niche fields.

We have been steadily expanding and enhancing our bases overseas, as well as domestically, which has been our business foundation so far. In addition to deepening and strengthening our functions as the frontline base for the Daido Steel Group, we will respond to different needs and business practices in each area and take advantage of the changing overseas environment and markets as opportunities to play a role in the supply chain.

From the standpoint of a trading company, we are involved in specialty steel, and we are committed to contributing to society by valuing the connection between people. At the same time, we are committed to being a company that is trusted by its customers and is placed first by its suppliers.

Thank you very much for your continued support.
Kazuto Tachibana
President & CEO


We value connections between people and will continue to be a company that contributes to a recycling-oriented society.

Action Guidelines

1. We continue to conduct sales activities that are trusted by our customers and are placed first by our suppliers.
2. We continue to conduct sales activities by understanding and striving to resolve issues (dissatisfaction, disadvantages, inconvenience, and discomfort, etc.)
3. We strive to enhance our abilities and humanity through work.
[As the core company in the Daido Steel Group, we will contribute our utmost to the growth of the Group through our own sustainable growth.]

Quality Policy

We will develop comprehensive sales activities for our customers by establishing the quality policy as follows.
1. Quality policy
We aim to constantly increase the value of intervention by providing information and services through people and competitive products between our customers and suppliers.
2. Quality objectives
(1) Continuous efforts to improve customer satisfaction
(2) Develop new business and products
(3) Challenge for growth and development of human resources
(4) Establishing a stable profit foundation


Company Name
Trade Name
Daido Kogyo Co., Ltd.
Head Office
1-1-10, Higashisakura, Higashi-ku, Nagoya, Aichi, 461-8583 Japan (Urbannet Nagoya Building 21st floor)
President & CEO
Kazuto Tachibana
January 1946
Paid-in Capital
JPY 1,511.5 million
Daido Steel Co., Ltd. (100%)
Main Business
Domestic sales and import/export of specialty steel, non-ferrous metals, raw materials, machinery, and magnetic materials
Company Profile
Annual Sales
JPY 239.8 billion (Year ended March 31, 2024)
Fiscal Year-End
Once a year (March)
Number of Employees
360 (April 2024)


Jan. 1946
Established in Sakuma-cho, Minato-ku, Tokyo (company name: Showa Timber Industry, capital 190,000 JPY)
Feb. 1949
Company name changed to Daido Kogyo Co., Ltd.
Sep. 1950
Head office moved to Nagoya City
Jan. 1972
Established a new corporate emblem (DKK)
Jun. 1981
Merged with Special Steel Markets Co., Ltd. (capital: 1,150,000,000JPY)
Oct. 1983
Established Daido Steel (America) Inc. as a joint venture with Daido Steel Co., Ltd.
Mar. 1997
Paid-in capital increased to 1,511,500,000JPY
Aug. 1998
Established a local subsidiary, Daido Kogyo (Thailand) Co., Ltd. in Thailand
Nov. 2000
Established a subsidiary Daido Kogyo (Shanghai) Co., Ltd. in Shanghai, China
Jul. 2001
ISO9001: Acquired 2000 (Quality Management) certification
Dec. 2003
Daido Shinagawa Building was completed. The company name was changed to DKK, and the new logo was established
Head office functions moved from Nagoya to Tokyo
ISO14001: Acquired 1996 (environmental management) certification
Apr. 2004
Established a subsidiary, Daido Kogyo Europe GmbH, in Frankfurt, Germany
Dec. 2005
Nagoya Branch moved from Fushimi Kogin Building to Hisaya Odori Urbannet Nagoya Building
Feb. 2008
Established a subsidiary, Daido Kogyo (Shenzhen) Co., Ltd., in Shenzhen, China
Jan. 2011
Dissolved Daido Kogyo (Shanghai) Co., Ltd. and established Daido Steel (Shanghai) Co., Ltd. through joint investment with Daido Steel Co., Ltd.
Mar. 2011
Established a subsidiary, Daido Kogyo India Pvt. Ltd., in Gurgaon, India
Oct. 2012
Established a local subsidiary, PT. Daido Kogyo Indonesia, in Jakarta, Indonesia
Apr. 2014
Established a local subsidiary Siam DKT Co, LTD. in Bangkok, Thailand
Oct. 2016
Became a wholly owned subsidiary through a share exchange with Daido Steel Co., Ltd.
Aug. 2019
Established Daido Shimomura Steel Manufacturing (Thailand) Co., Ltd. with Shimomura Tokushu Seiko Co., Ltd. in Thailand
Nov. 2019
Established Daido Kogyo India Pvt. Ltd., Bangalore Branch, in Bangalore, India
May 2022
Closed the Hong Kong Branch
Sep. 2023
Established a local subsidiary, Daido Kogyo Vietnam Co., Ltd. In Vietnam