T.RAD Co., Ltd.

Company Profile




3-25-3, Yoyogi, Shibuya-ku, Tokyo, 151-0053 Japan

Business Overview

-The Company is a heat-exchange supplier, delivering products for automobiles, construction and industrial equipment, and for climate-control systems. Its major products are radiators, oil-coolers, and EGR coolers.

-Sales breakdown by business sector: Automotive (76.5%) and Construction/Industrial Equipment (20.3%).

-Toyota group at 8.2% of product deliveries as of the fiscal year that ended in March 2023.


-From April 2022, Moved to the Prime Market of the Tokyo Stock Exchange (As of Mar. 31, 2023)
Name or Company Name Investment ratio (%)
Jinyaconnect Co., Ltd. 20.84
The Master Trust Bank of Japan, Ltd. (Trust Account) 9.18
Customer shareholding commission 6.10
Mizuho Bank, Ltd. 4.96
Yamakin Japan Co., Ltd.  2.75
Individual shareholder 2.39
Custody Bank of Japan, Ltd. (Trust Account) 1.96
Okasan Securities Co., Ltd. 1.72
T. Rad Stock Investment Association 1.65
Nippon Life Insurance Company 1.60
Total 53.19


Heat exchangers for automobiles
-Water-cooled charge air coolers
-Engine oil coolers
-Heater cores
LLC chillers
-ATF/CVTF warmers & coolers
-EGR coolers
-Heat exchangers with waste heat recovery device
-Fuel coolers
-Radiators for auxiliary system
-Heat exchangers for motors
-Heat exchangers for inverters
-Heat exchangers for lithium ion batteries


Nov. 1936 Toyo Radiator Manufacturing Co., Ltd. was established with capital of 500 thousand yen to manufacture and sell radiators for automobiles and other internal combustion engines, oil coolers, etc.
Jan. 1937 Started operations at the Kawasaki Plant.
Aug. 1940 Started operations at the Nagoya Plant.
May 1944 Company name was changed to Toyo Reikyakuki Co., Ltd.
Aug. 1951 Company name was changed to Toyo Radiator Co., Ltd.
Nov. 1959 Changed the names of the Kawasaki Plant and Nagoya Plant to Kawasaki Works and Nagoya Works, respectively.
Apr. 1960 Started operations at the Hatano Plant. Opened an R&D facility.
Oct. 1961 Listed on the second section of the Tokyo Stock Exchange.
Jun. 1962 Changed the name of the Hatano Plant to Hatano Works.
Jun. 1965 Headquarters was moved from Chuo-ku, Tokyo to Shinjuku-ku, Tokyo.
Apr. 1969 Started operations at the Yokaichi plant.
Aug. 1969 Listed on the first section of the Tokyo Stock Exchange.
Jul. 1987 Headquarters was moved from Shinjuku-ku, Tokyo to Shibuya-ku, Tokyo.
Jan. 1988 Established Toyo USA Inc.
Jan. 1990 Took a stake in CoPAR Inc. (currently T.RAD North America. Inc.)
Jun. 1990 Established Torc Co., Ltd.
Feb. 1994 Headquarters was moved to its current location.
Dec. 1995 Established Qingdao Toyo Radiator inc.
Mar. 1996 Toyo USA Inc. merged with CoPAR Inc.
Aug. 1997 Tata Toyo Radiator Ltd. was established.
Jul. 1999 Rising Sun Heat Exchanger Industry Co., Ltd. was established.
Sep. 1999 Toyo Radiator (Thailand) Co., Ltd. was established as a consolidated subsidiary. (Currently called T.RAD (Thailand) Co., Ltd.)
Oct. 2000 Established Behr Toyo Engine Cooling Systems Co., Ltd.
Nov. 2001 Established Tesio Radiatori S.p.a. (Currently called T.RAD Italia S.p.A)
Apr. 2002 Established a subsidiary, Toyo Radiator (Zhongshang) Co., Ltd.
Jul. 2004 Established Toyo Radiator Czech s.r.o. (Currently called T.RAD Czech s.r.o.)
Apr. 2005 Adopted a new corporate name, T.RAD Co., Ltd.
Apr. 2005 Established Qingdao Toyo Radiator Co., Ltd.
May 2008 Established PT. T.RAD Indonesia.
Jun. 2008 Established TRM Corporation B.V.
Jan. 2009 Took a stake in TRM LLC.
Aug. 2010 Established T.RAD (Jining) Co., Ltd.
Mar. 2012 Established T.RAD (Changshu) Co., Ltd.
Oct. 2012 Established T.RAD (Vietnam) Co., Ltd.
Sep. 2013 Sold T.RAD Italia S.p.A.
Apr. 2016 T.RAD North America, Inc. acquired stock in Tripac International Inc.
Mar. 2017 Established T.RAD (Changshu) R&D Center Co., Ltd.
Jun. 2017 Established T.Rad Sales Europe GmbH.
Oct. 2017 Turned Qingdao Toyo Heat Exchanger Co., Ltd. into a consolidated subsidiary.
Apr. 2018 Established T-Rad Connect Co., Ltd., a joint-venture company.
Apr. 2020 Merged Asnny Inc. and Towa Kosan into T-Rad Co., Ltd.
Jun. 2020 Liquidated T.RAD(Changshu) Co., Ltd.
Oct. 2020 Turned T-Rad Connect Co., Ltd. into a subsidiary.
Apr. 2022 Moved from the First Section of the Tokyo Stock Exchange to the Prime Market.
Nov. 2022 TRM Corporation B.V. and its subsidiary TRM LLC were removed from the consolidated group due to the Company's ownership interest becoming non-voting.

Supplemental Information 1