ENVALITH
東京ラヂエーター製造株式会社 logo

TOKYO RADIATOR MFG. CO., LTD.

7235Standard MarketTransportation Equipment

東京ラヂエーター製造株式会社 logo
TOKYO RADIATOR MFG. CO., LTD.7235

Japan

Core segment accounting for approximately 80% of group sales. Heat Exchangers for trucks and industrial machinery are the mainstay.

PeriodCurrentPreviousChange
Segment sales (including internal sales)¥29,634 million¥27,073 million
Segment profit¥1,680 million¥1,059 million
Segment assets¥23,014 million¥22,191 million
Depreciation and amortization¥745 million¥846 million
Capital expenditures (increase in tangible and intangible fixed assets)¥847 million¥667 million

Business Details

The Japan segment is the primary base of the Tokyo Radiator Mfg. group, manufacturing and selling Heat Exchangers (radiators, EGR coolers, etc.) and Body Parts (Fuel Tanks, Press & Sheet Metal Products) domestically. The main customer is Isuzu Motors, with a focus on the truck market, and it also handles industrial and construction machinery applications. Sales, including inter-segment internal sales, were ¥29,634 million, accounting for approximately 77% of the group total. The segment achieved a substantial increase in revenue, up 9.5% year on year, and segment profit also improved significantly, up 58.7% year on year, reflecting a major improvement in profitability.

Recent Overview

Sales rose 9.5% on strong domestic demand, while segment profit improved substantially, up 58.7%.

In the Japan segment for FY2026 (ending March 2026), sales increased by ¥2,561 million year on year to ¥29,634 million, supported by solid demand in the domestic truck market. On the profit side, segment profit improved substantially, up ¥621 million year on year to ¥1,680 million (up 58.7% year on year), driven by improvements in product mix and cost reduction activities such as production efficiency gains. Capital expenditures also increased to ¥847 million from ¥667 million in the prior period, reflecting expanded investment aimed at maintaining and strengthening production capacity.

Key Products

product
Heat Exchangers

A product group comprising radiators, EGR coolers, and other Heat Exchanger products supplied for trucks and industrial/construction machinery. With Isuzu Motors as the main customer, sales are expanding against a backdrop of solid demand in the domestic truck market.

product
Body Parts (Fuel Tanks, Press & Sheet Metal Products)

Fuel tanks and press & sheet metal products for commercial vehicles (trucks). Alongside Heat Exchangers, this is a mainstay product category of the Japan segment, produced and supplied from domestic manufacturing sites.

Growth Drivers

  • Sales expansion supported by solid demand trends in the domestic Japanese truck market
  • Profit margin improvement through ongoing product mix improvement and continued promotion of production efficiency and cost reduction activities
  • Maintenance and strengthening of production capacity through expanded capital expenditures (from ¥667 million in the prior period to ¥847 million in the current period)
  • A profit growth plan centered on the Japan segment under the new medium-term management plan "TRS Vision-2030"
  • Plans for increased revenue and profit in the Japan segment in the next fiscal year (FY2027, ending March 2027), assuming continued solid trends in the commercial vehicle market

Risks

  • The industrial and construction machinery market is expected to remain at a level similar to the current fiscal year, limiting room for growth
  • Structural change risk in the truck and construction machinery markets due to accelerating carbon neutrality initiatives (shift to EVs/NEVs)
  • Risk of sales concentration on the main customer, Isuzu Motors
  • Continuation of a challenging cost environment, including fluctuations in raw material prices and rising labor costs due to wage increases
  • Indirect impacts from geopolitical risks, monetary policy trends, and foreign exchange rate fluctuations

Last updated: June 23, 2026