Since its founding in 1944 (Showa 19), the company has supported stable power supply in China and responded to diverse social needs accompanying Japan's economic development, growing as a comprehensive equipment engineering company.
In response to a request from the Ministry of War Supplies, 12 electrical contracting companies primarily from five Chinese prefectures merged to form China Electric Works Co., Ltd., a company with a capital of 1.5 million yen, established at 33 Komachi, Hiroshima City.
Moved headquarters to 53 Rittō-cho, Hiroshima City.
Listed on the Hiroshima Stock Exchange (capital 10 million yen).
Opened a Tokyo office (now Tokyo headquarters).
Established the Construction Division (now Power Construction Office) and strengthened the transmission line and power substation construction division.
Successfully developed the vinyl exterior cable construction method.
Established China Electrical Materials Co., Ltd. (later renamed Kōden Co., Ltd.) as a material supply agency.
Established China Electric Materials Co., Ltd. (renamed Kōden Co., Ltd. in 1967) as a material delivery agency
Opened a skilled worker training center (now training center).
Established a skills training center (now a training institute)
Acquired 50.03% of the shares of Sanshin Electrical Materials Co., Ltd. as a material supply agency.
Listed on the Osaka Stock Exchange Second Section (capital 660 million yen).
Listed on the Second Section of the Osaka Stock Exchange (capital 660 million yen)
Listed on the Tokyo Stock Exchange Second Section (capital 780 million yen).
Listed on the Second Section of the Tokyo Stock Exchange (capital 780 million yen)
Moved main office to 1-15 Kamitsumamachi, Hiroshima City.
Listed on the First Section of the Tokyo Stock Exchange and Osaka Stock Exchange (capital 1.2 billion yen)
Company motto "Shinshin" established
Established Nakagaku Development Co., Ltd.
Founded the Marathon Club (now the Athletics Club)
Changed the company name to Nakadengo Co., Ltd.
50th anniversary of founding
Moved headquarters to 6-12 Koamachi, Naka-ku, Hiroshima City (current location)
ISO 9001 certification obtained
Established the corporate philosophy
Established Nakadengo Tech Hiroshima, Nakadengo Service Hiroshima, and IPEK Hiroshima Co., Ltd.
Established Nakadengo Tech Hiroshima Co., Ltd. (renamed Nakadengo Tech Co., Ltd. in 2014), Nakadengo Service Hiroshima Co., Ltd. (dissolved by absorption in 2011), and Ipeck Hiroshima Co., Ltd.
ISO 14001 certification obtained
Established Okayama EleTech Co., Ltd. and Yamaguchi EleTech Co., Ltd.
Established Okayama Eletech Co., Ltd. and Yamaguchi Eletech Co., Ltd. (dissolved by absorption in 2011)
Delisted from Osaka Stock Exchange
Changed the corporate emblem and flag
Established Shimane EleTech Co., Ltd.
Established Tottori Eletech Co., Ltd.
Established CHUDENKO (Malaysia) Sdn. Bhd. in Malaysia
Nakadengo Service Hiroshima Co., Ltd. was absorbed and merged into Nakagaku Equipment Co., Ltd., and the surviving company changed its name to Hiroshima EleTech Co., Ltd.; Yamaguchi EleTech Co., Ltd. was absorbed and merged into Shunan EleTech Co., Ltd., and the surviving company changed its name to Yamaguchi EleTech Co., Ltd.
Sanjin Electric Materials Co., Ltd. absorbed and merged with Koken Co., Ltd.
Created a commemorative logo for the 70th anniversary
Created a commemorative logo on the 70th anniversary of founding
Completed the Safety Training Building
Established Nakadengo World Farm Co., Ltd.
Grouped Sugiyama Pipe Equipment Co., Ltd.
Grouped Sugiyama Pipe & Equipment
Grouped Hayasumi Electric Machinery
Grouped RYB Engineering Pte. Ltd.
Grouped Showa Corporation Co., Ltd.
Okayama EleTech Co., Ltd. absorbed and merged with Tottori EleTech Co., Ltd., and the surviving company changed its name to Nakadengo EleTech Okayama & Tottori Co., Ltd.
Yamaguchi Eletech Co., Ltd. changed its name to Nakadengo Eletech Yamaguchi Co., Ltd.
Hiroshima Eletech Co., Ltd. absorbed Shimane Eletech Co., Ltd. and changed its name to Nakadengo Eletech Hiroshima & Shimane Co., Ltd.
Listed on the Prime Market of the Tokyo Stock Exchange
Minister of Land, Infrastructure, Transport and Tourism approval (Special-4) No. 2097, November 10, 2022
Minister of Land, Infrastructure, Transport and Tourism approval (General-4) No. 2097, November 10, 2022
Minister of Land, Infrastructure, Transport and Tourism approval (Special-4) No. 2097, November 10, 2022
Minister of Land, Infrastructure, Transport and Tourism approval (General-4) No. 2097, November 10, 2022
Revised corporate philosophy on the 80th anniversary of founding
The company resolved to acquire its own shares and conduct a public tender offer at a board meeting held on October 30, 2026. The shares to be acquired are common shares, with a maximum of 6,930,100 shares and a total purchase price of 319,754,814,000 yen. The announcement date for the tender offer is November 2, 2026.
Chudenko decided an interim dividend of 70 yen per share, based on the record date of September 30, 2026. The year‑end dividend forecast was raised from 70 yen to 80 yen, and the annual dividend forecast was revised from 140 yen to 150 yen.
The consolidated performance for the Q3 2027 interim period was: revenue of 106,376 million yen, operating profit of 13,197 million yen, ordinary profit of 13,846 million yen, and net income attributable to shareholders of the parent company of 8,771 million yen. All figures exceeded the same period of the previous year.
Kudamatsu Battery Energy LLC, funded by Chugoku Electric Power and Chudenko, among others, has been established to install approximately 32,000 kW of lithium-ion batteries on the former Kudamatsu Power Station site in Kudamatsu, Yamaguchi Prefecture. Construction is set to begin in August 2026, with operations scheduled to start during fiscal 2029.
Chudenko Corporation announced that it has completed the disposal of its treasury shares as part of its restricted stock compensation plan, and the payment has been finalized. The disposed shares are 17,700 common shares, with a disposal price of 5,460 yen per share, totaling 96.64 million yen. The recipients of the shares are directors and executive officers, and the transaction was carried out on July 23, 2026.
Zhongdeng Co., Ltd. reports that on July 23, 2026, it disposed of 17,700 shares of its common stock at ¥5,460 per share, receiving a total of ¥96,642,000. The shares were allocated to 3 directors (4,100 shares) and 25 executive officers (13,600 shares).
Nippon Denso Corporation announced in a press release on June 24, 2026, that personnel changes have been made across multiple departments. The new and old positions and names are shown in a table, with changes including the Director of the Planning Headquarters Information Systems Department and the Deputy General Manager of the General Affairs Department of the Operations Headquarters.
Chudenko Corporation announced personnel changes for executive officers, appointing new positions including the Power Division, Planning Division, and branch managers.
Akira Sakotani appointed as Chairman of the Board, Takafumi Shigetou as President and CEO, and Jitsuo Taniguchi as Vice President and Executive Officer. The personnel structure including external directors was also announced.
Chugoku Electric Power Company, Inc. is the controlling shareholder and holds 41.41% of voting rights. Mr. Hiroyuki Yoshinaga has been appointed as a part-time director (audit and supervisory committee member).