Aichi Steel Corporation

Company Profile

■URL

https://www.aichi-steel.co.jp/ENGLISH/

■Address

1 Wanowari, Arao-machi, Tokai-shi, Aichi-ken, 476-8666, Japan

Business Overview

-Materials manufacturer under the Toyota Group. In addition to manufacturing stainless steel and specialty steel, the Company manufactures forged parts, as well as electromagnetic products such as magnetic sensors.

-The Company operates in the following business segments: steel, stainless steel, forging, smart, and other.

-The main products and services of each of the companies are listed below.

Steel: Manufacture of steel: Manufacture of steel; development of production technology
Stainless steel: Manufacture and sale of stainless steel, titanium, and stainless structures, engineering.
Forging: Manufacture and sale of closed die products, processed dies for forging.
Smart: Manufacture and sales of electronic functional materials and parts, products for magnetic use, plant activating agent, and metal fiber.
Other business: Developing computer software

Shareholders

‐Listed on the Prime Market of the Tokyo Stock Exchange and the Premium Market of the Nagoya Stock Exchange.

(As of Mar. 31, 2026)

Name or Company Name	Investment Ratio (%)
Toyota Motor Corp.	24.69
The Master Trust Bank of Japan, Ltd. (Trust account)	9.31
Toyota Industries Corp.	8.47
Nippon Steel Corporation	6.19
MUFG Bank, Ltd.	2.95
Toyota Fudosan Co., Ltd.	2.87
Aichi Steel Employee Stock Ownership Plan	2.25
Hokokai Stock Ownership Plan	2.07
Custody Bank of Japan (Trust Account)	1.85
Nippon Life Insurance Company	1.69
Total	62.36

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Products

Specialty Steel

Tool Steel

Stainless Steel
-Stainless steel for use in devices for fuel cell vehicles and hydrogen stations

Titanium Products

Forged Products
-e-Axle Unit Products

Output Shaft
Counter Driven Gear
Differential Ring Gear

-Engine Products

Crankshafts
Crankshaft for Small Serial 3-Cylinder Internal Combustion Engine
Connecting Rod and Cap

-Transmission Products

CVT Primary Shaft Parts
CVT Secondary Shaft Parts
Drive pinions
Counter Driven and Drive Gear Parts
Differential Ring Gear Parts
Planetary Ring Gear and Other Ring-Shaped Parts
Output Shaft Parts

-Driveline Products

Differential Ring Gear
Drive Pinion
Axle Shaft Parts
Sleeve Yoke Parts
Flange Yoke Parts

-Chassis Products

Steering Knuckles
Leading Arm

Electronic Functional Materials and Components / Magnetic Application Products
-MI Sensor
-Anisotropic Nd-Fe-B Resin-Bonded Magnet “MAGFINE”
-Bonding pads
-Lead frames
-Heat spreaders for bare chips

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History

1934	Established a steel manufacturing division with the goal of carrying out R&D on "specialized steel," which was key to localizing production of everything from engines to auto bodies, etc.
Mar. 1940	Separated the steel manufacturing division from Toyota Industries and established it as Toyota Steel Works, as independent company.
May. 1949	Listed on the Nagoya Stock Exchange.
Nov. 1945	Changed the Company name to Aichi Steel Corporation.
Sep. 1959	Listed on the Osaka Stock Exchange.
Sep. 1961	Listed on the Tokyo Stock Exchange.
Jan. 1995	Acquired Philippine Forge, Inc. (Philippines) and changed the name of the company to Aichi Forging Company of Asia.
Mar. 1995	Changed the fiscal year closing date to March 31st.
Jun. 1995	Made Aichi Forging Company of Asia into a subsidiary through a share purchase.
Aug. 1997	Established Aichi USA in the United States. Aichi USA then established a joint venture company, Louisville Forge and Gear Works, LLC, with LFG. Inc. Aichi USA has 20% ownership of the joint venture company.
Jan. 1998	Aichi Steel Works, Ltd. opens a representative office in Seoul, Korea.
Apr. 1999	Aichi Steel Corporation has opened a representative office at Dusseldorf in Germany.
Dec. 1999	Aichi USA acquired total ownership of Louisville Forge and Gear Works, LLC, thereby making it into a subsidiary.
Jun. 2000	Established the Dusseldorf Representative as Aichi Europe, making it into a local subsidiary. Capital for the transaction was about 10 million yen. In the processing of registering the establishment, the office will open on August 1, 2000.
Nov. 2000	Tie-up with Nippon Steel Corporation to produce and develop technology for specialized steel products for automotive use. The companies are investigating mutual OEM and division of production to prevent duplication in the areas of bar steel, a specialized steel and line materials which are used in automobiles.
Dec. 2000	Established Aichi Micro Intelligent Co., Ltd. in Tokai City, Aichi Pref.
Jan. 2001	Shrunk the development time required for specialized steel, a new type of steel, from the conventional three years to two years. In a business tie-up with Nippon Steel Corporation, Nippon Steel Corporation is responsible for basic materials research and the Company is responsible for applied research for automotive components.
Mar. 2001	Aichi U.S.A. established a joint venture, Kentucky Advanced Forge, LLC with Koyo Corporation of U.S.A and acquired 51% of its stake.
Feb. 2002	Established Aichi International Thailand Co., Ltd.
Apr. 2002	Established Asdex Corporation.
May 2002	Established Shanghai Aichi Forging Co., Ltd. in China.
Nov. 2003	Established P.T. Aichi Forging Indonesia.
Apr. 2006	The Company acquired Fukaumi Metal Co., Ltd. in Tsubame City, Nigata Prefecture, making it its subsidiary. The name of the Nigata-based company was changed to Aichi Techno Metal Fukaumi Co., Ltd.
Sep. 2007	Established Aichi Magfine Czech s.r.o. in Czech Republic.
Mar. 2008	Established AMIT Inc. in Taiwan.
Mar. 2008	Aichi U.S.A. sold its stake in Kentucky Advanced Forge, LLC, which then became a non-consolidated company of Aichi Steel.
Apr. 2009	The Company's consolidated subsidiary, Aichi USA Inc., absorbed another consolidated company, Louisville Forge and Gear Works LLC. As a result, Aichi USA Inc was then renamed Aichi Forge USA, Inc.
Dec. 2010	Established Aichi Korea Corporation in Korea.
Jun. 2011	Completed the No. 3 bloom continuous casting (BL/CC) facilities, launching operations.
Nov. 2012	Established Aichi Magnet Technology (Pinghu) Co., Ltd. in China.
Apr. 2017	Revised the corporate organization, which now consists of three companies, i.e., steel (strength), forging (endurance), and smart; corporate offices; and direct functions.
Apr. 2020	Formed four business segments out of the previous three, after spinning off the stainless-steel operations from the Steel Business.
Jul. 2020	Invested further in Zhejiang Aichi Mechanical & Electrical Co., Ltd. in China, turning the company into a subsidiary.
Jul. 2025	Purchased additional stock shares in Vardhman Special Steels Limited based in India and turned it into an affiliate accounted for under the equity-method of accounting.