Nippon Electrode Co., Ltd.
Japanese manufacturer of carbon blocks and specialty carbon products for blast furnaces, electric furnaces, and aluminum electrolysis cells, holding a world-leading share in carbon products for ironmaking furnaces.
Last updated September 27, 2026
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Overview
Nippon Electrode Co., Ltd. (日本電極株式会社) is a Japanese manufacturer of carbon and graphite products headquartered in Kambara, Shimizu-ku, Shizuoka City, Shizuoka Prefecture. The company was established on May 1, 1945, as a joint venture between Nippon Light Metal Company, Ltd. and Showa Electrode Co., Ltd., with the purpose of supplying cathode carbon blocks for Nippon Light Metal's aluminum electrolysis furnaces. It is a core operating company within the Nippon Light Metal Group (Nikkei Kinzoku Group). The company's principal business is the manufacture and sale of large carbon blocks used in the ironmaking and aluminum smelting industries. Its product lines include carbon blocks for blast furnaces and electric furnaces, carbon blocks for aluminum electrolysis furnaces, side carbon, carbon paste, carbon cement, and specialty carbon products such as carbon troughs, carbon for tapping holes, carbon bricks, recarburizing materials, and Söderberg electrode paste. In recent years, the company has also expanded into contract heat treatment services, including graphitization of carbon materials used as anode material feedstock for lithium-ion batteries, using its own proprietary vertical continuous graphitization equipment. Nippon Electrode is particularly known for its blast furnace carbon products. Since first delivering carbon blocks to the Yawata Steel Works in 1952, its blast furnace carbon products have been used in more than 500 blast furnaces worldwide. The company developed micro-pore carbon BC-7S in 1981 and super micro-pore carbon BC-8SR in 1985 in collaboration with users, and received the Science and Technology Agency Director-General's Invention Award — reportedly the first such award for a refractory material in Japan. Its blast furnace and electric furnace carbon blocks are manufactured using new technologies jointly developed with Nippon Steel. The company is owned by Nippon Light Metal Company, Ltd. (51%), Mitsubishi Corporation (29%), and SEC Carbon, Ltd. (20%). It has approximately 250 employees and stated capital of 1.2 billion yen. Its products are exported widely, with an export ratio of 60–70%, reaching markets across Asia, Oceania, Europe, North America, South America, and Africa. The company operates under the management philosophy of contributing to improved living standards and environmental protection through businesses centered on carbon, and it pursues carbon neutrality and a sustainable society.
History
Nippon Electrode Co., Ltd. was established on May 1, 1945, as a 50/50 joint venture between Nippon Light Metal Company, Ltd. and Showa Electrode Co., Ltd. Its founding purpose was to produce cathode carbon blocks for use in Nippon Light Metal's aluminum electrolysis furnaces. The company began operations in Kambara, Shizuoka Prefecture. Following the end of World War II, production of cathode carbon blocks for aluminum electrolysis furnaces, which had been suspended, resumed in 1948. In 1953, Nippon Light Metal became the 100% shareholder of the company. In the same year, the company launched blast furnace carbon block BC-5 and made its first delivery to the Yawata Steel Works. This marked the beginning of its long-standing presence in the ironmaking carbon products market. In 1961, the company moved its head office from Kambara-cho, Shizuoka Prefecture, to Chuo-ku, Tokyo, and started operation of its No. 1 lead hammer furnace for baking. In 1967, the No. 1 vertical continuous shaft kiln for calcination began operation. In 1970, an extrusion press for carbon blocks was commissioned. In 1986, a mold press for high-grade carbon blocks began operation, and the company launched the standard grade of super micro-pore carbon block for blast furnaces, BC-8SR. In 1987, the company received the Science and Technology Agency Director-General's Invention Award for the super micro-pore carbon block BC-8SR. In 1991, an automated processing line for cathode carbon blocks started operation. In 1992, the No. 1 Acheson furnace for graphitization was completed. In 1994, the company launched the super micro-pore carbon block for blast furnaces (BC-8SR). Over the decades, the company developed micro-pore carbon BC-7S in 1981 and super micro-pore carbon BC-8SR in 1985, working with users to elucidate the wear mechanisms of blast furnace hearths through dismantling surveys of idled blast furnaces. These products were highly evaluated, and the company received the Science and Technology Agency Director-General's Invention Award — reportedly the first such award for a refractory material in Japan. Its blast furnace carbon products have been used in more than 500 blast furnaces worldwide since the first delivery in 1952. In recent years, the company has expanded into heat treatment services, leveraging its carbon manufacturing facilities. It has focused on graphitization heat treatment of carbon used as anode material feedstock for lithium-ion batteries, using its own proprietary vertical continuous graphitization equipment. The company continues to operate as a core company of the Nippon Light Metal Group, with shareholders Nippon Light Metal (51%), Mitsubishi Corporation (29%), and SEC Carbon (20%). It has approximately 250 employees and stated capital of 1.2 billion yen. Its products are exported globally, with an export ratio of 60–70%.
- 1999
Registered ISO 9001 (registration number JQA-QM3719, September 1999).
- 1994
Launched super micro-pore carbon block for blast furnaces (BC-8SR).
- 1992
Completed No. 1 Acheson furnace for graphitization.
- 1991
Started operation of automated processing line for cathode carbon blocks.
- 1987
Received Science and Technology Agency Director-General's Invention Award for super micro-pore carbon block BC-8SR.
- 1986
Started operation of mold press for high-grade carbon blocks; launched standard grade of super micro-pore carbon block BC-8SR for blast furnaces.
- 1985
Developed super micro-pore carbon BC-8SR.
- 1981
Developed micro-pore carbon BC-7S.
- 1970
Started operation of extrusion press for carbon blocks.
- 1967
Started operation of No. 1 vertical continuous shaft kiln for calcination.
Products and positioning
World-leading share in carbon products for blast furnaces and electric furnaces; a specialist carbon products manufacturer within the Nippon Light Metal Group, supplying high-quality carbon blocks to the global steel and aluminum industries.
Blast furnace carbon blocks
Carbon blocks for blast furnaces, including the BC series (BC-5, BC-7S, BC-8SR). Used in more than 500 blast furnaces worldwide.
Electric furnace carbon blocks
Carbon blocks for electric furnaces, manufactured with technologies jointly developed with Nippon Steel.
Aluminum electrolysis furnace carbon blocks
Cathode carbon blocks, side carbon, and carbon paste for aluminum electrolysis furnaces.
Specialty carbon products
Carbon troughs, carbon for tapping holes, carbon bricks, recarburizing materials, and Söderberg electrode paste.
Heat treatment services
Contract heat treatment using carbon manufacturing facilities, including graphitization of carbon for lithium-ion battery anode material feedstock using proprietary vertical continuous graphitization equipment.
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