Tokyo Radiator Manufacturing Co., Ltd.

Established in Shiba-ku, Tokyo. The original factory was in Shinagawa.

The Shinagawa plant at the time of the Establishment

Tokyo City, Shiba-ku, Tokyo Radiator Manufacturing Co., Ltd. established: Shinagawa factory at founding

Tokyo Radiator Mfg. Co., Ltd established in Shiba-ku, Tokyo. : The Shinagawa plant at the time of the Establishment

Oct 1938 : Tokyo Radiator Mfg. Co., Ltd established in Shiba-ku,Tokyo. : The Shinagawa plant at the time of the Establishment

The Kawasaki factory was completed in 1941.

The Kawasaki plant at the time of 1941

Kawasaki factory completed: Kawasaki factory at Showa 16

Kawasaki plant completed. : The Kawasaki plant at the time of 1941

Oct 1941 : Kawasaki plant completed. : The Kawasaki plant at the time of 1941

Fuel tank production started

Fuel tank production begins.

Jul 1957 : Fuel tank production begins.

Listed on the Second Section of the Tokyo Stock Exchange

Listed on Tokyo Stock Exchange, Second Section.

Oct 1961 : Listed on Tokyo Stock Exchange, Second Section.

Start production of Japan's first corrugated-type radiator for trucks

Production of Japan’s first corrugated-type radiator for trucks begins.

Jun 1963 : Production of Japan’s first corrugated-type radiator for trucks begins.

Released Tokyo Subtank (150L) and Tokyo Subtank (300L).

Tokyo subtank(150l) and Tokyo subtank(300l)

Release of "Tokyo Subtank": Tokyo Subtank (150l) and Tokyo Subtank (300l)

Tokyo subtank goes on sale. : Tokyo subtank(150l) : Tokyo subtank(300l)

May 1964 : Tokyo subtank goes on sale. : Tokyo subtank(150l) : Tokyo subtank(300l)

Capital increased to 540 million yen.

Capital increased to 540 million yen

Capital increased to 540 million yen.

Nov 1964 : Capital increased to 540 million yen.

Panorama of Fujisawa factory (1945).

Fujisawa plant panoramic view (1965)

Fujisawa Plant Completed: Panorama of Fujisawa Plant (Showa 40)

Fujisawa plant completed. : Fujisawa plant panoramic view (1965)

Jan 1965 : Fujisawa plant completed. : Fujisawa plant panoramic view (1965)

Contract for technical assistance to Thai Radiator Manufacturing Co., Ltd. (Thailand)

Contract signed to provide technical support to Thai Radiator Mfg. Co., Ltd (Thailand).

Nov 1969 : Contract signed to provide technical support to Thai Radiator Mfg. Co., Ltd (Thailand).

First phase construction completed at Kakamura factory.

Kanuma plant completed

Kakunuma Plant Completed: First phase construction of Kakunuma Plant

Kanuma plant completed. : Kanuma plant completed

Jan 1973 : Kanuma plant completed. : Kanuma plant completed

Contract for technical assistance to C.V. Autodiesel Radiator Co., Indonesia (now P.T. Slamat Sampurna Co.)

Contract signed to provide technical support to C.V.Auto Diesel Radiators of Indonesia. (now P.T.Selamat Sempurna tbk.)

Apr 1979 : Contract signed to provide technical support to C.V.Auto Diesel Radiators of Indonesia. (now P.T.Selamat Sempurna tbk.)

Started mass production of Shinfin radiators.

Thin-fin single-line radiators

World's first mass production of Symfin 1-row radiator: Symfin Radiator

Mass production of world’s first thin-fin single-line radiators begins. : Thin-fin single-line radiators

Aug 1980 : Mass production of world’s first thin-fin single-line radiators begins. : Thin-fin single-line radiators

Mass production of aluminum heat exchangers

Mass production of aluminum heat exchangers begins.

Nov 1980 : Mass production of aluminum heat exchangers begins.

Introduction of 600-ton tandem press line at Fujisawa Plant

Introduction of 600-ton tandem press line at Fujisawa plant.

Apr 1983 : Introduction of 600-ton tandem press line at Fujisawa plant.

Establishment of Higashi Shin Logistics Co., Ltd. (now TOSINTECH Co., Ltd.)

Toshin Distribution Co., Ltd. (now Toshin Tecno Co., Ltd.) established.

Jun 1986 : Toshin Distribution Co., Ltd. (now Toshin Tecno Co., Ltd.) established.

Ended production at Kawasaki factory and consolidated at Fujisawa factory.

Closure of Kawasaki Plant and consolidation at Fujisawa Plant: New office (2nd floor) and factory building: Large radiator equipment

Kawasaki plant production ended, merged with Fujisawa plant. : New office (second floor) : and a plant building : Large radiator equipment

May 1989 : Kawasaki plant production ended, merged with Fujisawa plant. : New office (second floor) : and a plant building : Large radiator equipment

Mass production of HL fin oil cooler

Mass production of NHF fin heater core

Mass production of HL fin oil coolers begins.

Mass production of NHF fin car heater cores begins.

Mar 1990 : Mass production of HL fin oil coolers begins.

Mar 1990 : Mass production of NHF fin car heater cores begins.

Contract for technical assistance to Master Radiator Co., Malaysia

Contract signed to provide technical support to Master Radiator sdn. bhd.(Malaysia)

Nov 1991 : Contract signed to provide technical support to Master Radiator sdn. bhd.(Malaysia)

Started real estate leasing business.

Real estate leasing business begins

Completion of business building "Talkpia Kawasaki" and start of real estate leasing business

Office building Talk pier Kawasaki completed, real estate leasing business begins.

Dec 1991 : Office building Talk pier Kawasaki completed, real estate leasing business begins.

Mass production of NHF fin radiator

Mass production of NHF fin radiators begins.

Apr 1993 : Mass production of NHF fin radiators begins.

Mass production of stacked type H/L fin

Mass production of stacked-type H/L fins begins.

Aug 1993 : Mass production of stacked-type H/L fins begins.

Mass production of aluminum radiator

Establishment of Talkpia Service Co., Ltd.

Mass production of aluminum radiators begins.

Talk Pia Service Co. Ltd. established.

Aug 1994 : Mass production of aluminum radiators begins.

Aug 1994 : Talk Pia Service Co. Ltd. established.

Contract for technical assistance to Acerocobre Co., Ltd. (Chile)

Contract signed to provide technical support to Acero Cobre Industrial Ltda.(Chile)

Nov 1994 : Contract signed to provide technical support to Acero Cobre Industrial Ltda.(Chile)

Contract for technical assistance from Carsonic Co., Ltd. (now Mareli Co., Ltd.)

Contract signed to receive technical support form Calsonic Corp.(now CalsonicKansei Corp.)

Dec 1994 : Contract signed to receive technical support form Calsonic Corp.(now CalsonicKansei Corp.)

Introduction of 2D random vibration test equipment

Two-dimensional random vibration test facilities introduced.

Nov 1996 : Two-dimensional random vibration test facilities introduced.

Contract for technical assistance to Ruili Enterprise Shareholding Co., Ltd. (Taiwan)

Contract signed to provide technical support to Lui Li Enterprise Co., Ltd.(Taiwan)

Dec 1996 : Contract signed to provide technical support to Lui Li Enterprise Co., Ltd.(Taiwan)

Major shareholder transferred from Isuzu Motors Ltd. to Carsonic Co., Ltd. (now Mareli Co., Ltd.)

Calsonic Corp. (now CalsonicKansei Corp.) replaces Isuzu Motors Ltd. as principal shareholder.

Mar 1997 : Calsonic Corp. (now CalsonicKansei Corp.) replaces Isuzu Motors Ltd. as principal shareholder.

ISO 9001 certification obtained

ISO9001:Certification acquired.

Jun 1997 : ISO9001:Certification acquired.

ISO 9001:1994 certification obtained

ISO9001:1994 Certification acquired.

Jul 1997 : ISO9001:1994 Certification acquired.

Mass production of aluminum fuel tanks started : enkaku_img_15

Mass production of aluminum fuel tanks begins. : enkaku_img_15

Dec 1997 : Mass production of aluminum fuel tanks begins. : enkaku_img_15

Chongqing Tokyo Radiator Co., Ltd. (China) Established

Chongqing Tokyo Radiator Co., LTD., established.

June 1999 : Chongqing Tokyo Radiator Co., LTD., established.

Mass production of tube-type EGR coolers started : enkaku9908

Mass production of EGR coolers for Tube types begins. : enkaku9908

Aug 1999 : Mass production of EGR coolers for Tube types begins. : enkaku9908

Shut down of Kawanishima plant and consolidation at Fujisawa plant

Kanuma plant closed, merged with Fujisawa plant.

Sep 1999 : Kanuma plant closed, merged with Fujisawa plant.

Engine bench introduced

Engine bench introduced.

Mar 2000 : Engine bench introduced.

Headquarters moved to Fujisawa City

Headquarters moved to Fujisawa.

Jul 2000 : Headquarters moved to Fujisawa.

ISO 14001:2004 certification obtained

ISO14001:2004 Certification acquired.

Mar 2003 : ISO14001:2004 Certification acquired.

QS 9000:1998 certification obtained

QS9000:1998 Certification acquired.

Dec 2003 : QS9000:1998 Certification acquired.

Wuxi Tarnia Heat Exchanger Technology Co., Ltd. (China) Established

Wuxi TRS Heat Exchanger Co., Ltd., established.

Mar 2004 : Wuxi TRS Heat Exchanger Co., Ltd., established.

Absorption merger of Talkpia Service Co., Ltd.

TRS merged Talk Pier Service Co., Ltd.

Apr 2004 : TRS merged Talk Pier Service Co., Ltd.

Capital increased to 1.3176 billion yen through new share issuance by third-party allotment.

By issuing new shares and making CalsonicKansei Corp. an undertaking place

Issued new shares through a third‑party allotment (underwriter Carsonic Kansei Co., Ltd. (now Mareli Co., Ltd.)) and increased capital to 1.3176 billion yen

By issue of new shares by the third-party allotment which makes CalsonicKansei Corp. an undertaking place, the capital was increased to 1,317.6 million yen.

May 2004 : By issue of new shares by the third-party allotment which makes CalsonicKansei Corp. an undertaking place, the capital was increased to 1,317.6 million yen.

Mass production of stainless steel SCR tanks started

Mass production of SCR tanks begins.

Oct 2004 : Mass production of SCR tanks begins.

Mass production of cooling modules for construction machinery started

Mass production of Cooling Module for Construction Machinery begins.

Sep 2005 : Mass production of Cooling Module for Construction Machinery begins.

Completion of headquarters and development building

Headquarters/Development building completed.

Jan 2006 : Headquarters/Development building completed.

Mass production of inner fin type EGR coolers started : enkaku0606

Mass production of EGR coolers for light duty diesel engines begins. : enkaku0606

June 2006 : Mass production of EGR coolers for light duty diesel engines begins. : enkaku0606

ISO9001:2000 Certification acquired

ISO9001:2000 certification obtained : ISO/TS16949:2002 certification obtained

ISO/TS16949:2002 Certification acquired. : ISO9001:2000 Certification acquired.

Aug 2006 : ISO/TS16949:2002 Certification acquired. : ISO9001:2000 Certification acquired.

Specialized in manufacturing operations

Sold the land and building of the business building "Talkpia Kawasaki" and specialized in manufacturing business

Sold the ”Talk pier Kawasaki” facilities and specialized in manufacturing operations.

Mar 2007 : Sold the ”Talk pier Kawasaki” facilities and specialized in manufacturing operations.

ISO9001:2008 Certification acquired

ISO/TS16949:2009 certification obtained : ISO9001:2008 certification obtained

ISO/TS16949:2009 Certification acquired. : ISO9001:2008 Certification acquired.

Aug 2009 : ISO/TS16949:2009 Certification acquired. : ISO9001:2008 Certification acquired.

Mass production of resin SCR tanks started

Mass production of resin SCR tanks begins.

Jan 2010 : Mass production of resin SCR tanks begins.

(Indonesia)

PT.TOKYO RADIATOR SELAMAT SEMPURUNA (Indonesia) established

PT. Tokyo Radiator SELAMAT SEMPURNA , established. (Indonesia)

Apr 2012 : PT. Tokyo Radiator SELAMAT SEMPURNA , established. (Indonesia)

Mass production started at Wuxi Taier Heat Exchanger Technology Co., Ltd.

Mass production of EGR coolers for gasoline engines started at China, Wuxi Taerji Heat Exchanger Technology Co., Ltd.

Mass production of EGR coolers for gasoline engines begins.

(Thailand)

TR Asia CO., LTD. (Thailand) established

TR Asia CO., LTD. established. (Thailand)

Mass production of EGR coolers for small diesel engines started

Mass production of EGR coolers for small diesel engine types begins.

Mass production of EGR coolers for gasoline engines started at Fujisawa plant : enkaku_img_0720_1

Mass production of EGR cooler for gasoline engine at Fujisawa plant.

ISO14001:2015 certification obtained

ISO14001:2015 Certification acquired.

ISO9001:2015 Certification acquired

IATF16949:2016 certification obtained : ISO9001:2015 certification obtained

IATF16949:2016 Certification acquired. : ISO9001:2015 Certification acquired.

80th anniversary of company establishment.

Copper radiator production ended : enkaku_img_0720_4

Production of copper radiator ended.

Mass production of PCS radiators for large construction machinery started

Mass production of PCS radiators for large construction machinery begins.

Mass production started at Chongqing Tokyo Radiator Co., Ltd.

Radiator for fuel cell truck [FCEV] : Mass production started at Jiangxi Tokyo Heat Exchanger Co., Ltd. ( : See details here : )

Mass production of radiator for Fuel Cell Trucks[FCEV] begins at Chongqing Tokyo Radiator Co., LTD.（ : more information : ）

Mass production of stainless steel water-cooled oil coolers for diesel engines started

Mass production of water cooled oil cooler made of stainless steel for diesel engine begins.

Mass production of new radiators for trucks started

New type radiator for commercial vehicle begins.

Mass production of new radiator for trucks begins ( : see details here : )

Mass production of radiators for electric trucks [BEV] started

Mass production of radiators for electric trucks[BEV] begins.（ : more information : ）

Mass production of radiator for electric trucks [BEV] begins ( : see details here : )

Summary: Consolidated Financial Results for the Fiscal Year Ended March 31, 2026 (Under Japanese GAAP)

Notice of Convocation Annual General Meeting 2026

Notice Concerning New Orders

Notice: Stock Information (Shareholder Benefits)

Financial Results for the First Quarter of the Fiscal Year Ending March 31, 2027 to Be Announced on August 7, 2026, at 4:00 p.m. (JST)