Corporate Profile

SEC CARBON was founded as a dedicated manufacturer of graphite electrodes for steel making. Since then, we have been a leader in the evolving of carbon technology and manufactured products such as SK-B graphitized cathode blocks for aluminium smelting, Carbon & Graphite specialties and fine powder by utilizing our solid technological strengths. In particular, our SK-B for aluminium smelting sit at the top in global market share. Despite this fact, we are never satisfied. We will continue to proactively improve product quality, strengthen research and development activities, further train personnel and establish internal controls.

Corporate name SEC CARBON, LIMITED
Location of
head office
6th Floor, JRE Amagasaki Front Bldg., 1-2-6 Shioe, Amagasaki, Hyogo, Japan 661-0976
TEL +81-6-6491-8600
(As of June 29, 2022)
Chairman Tamiaki Otani
President Koh Nakajima
Director Kazushige Hasegawa
Director Hiroshi Tabata
Outside Director Hisakazu Otani
Full-Time Corporate Auditor Masafumi Inoue
Full-Time Corporate Auditor Hiroya Morishita
Outside Corporate Auditor Kazuhiko Oka
Outside Corporate Auditor Hiroshi Hayasaki
Offices Head Office Hyogo
Plants Kyoto, Okayama
Office Tokyo
Sales Office Nagoya
Establishment October 23, 1934
Business SK-B, Graphitized Cathode Block for Aluminium Smelting
Graphite Electrodes
Carbon & Graphite Specialties
Fine Powder
Capital 5.9 billion yen (As of March 31, 2022)
Number of employees 254 (As of March 31, 2022)
Sales (Consolidated) 22.919 billion yen (fiscal year ended March 2022)
Breakdown of sales
(fiscal year ended March 2022)
Breakdown of sales(Consolidated)
  • *Sales do not include consumption tax.

Organizational Chart

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Consultations and inquiries


  • 6th Floor, JRE Amagasaki Front Bldg.,1-2-6 Shioe, Amagasaki, Hyogo, Japan MAP
  • +81-6-6491-8600
  • FAX:+81-6-6491-8614
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