Showa Denko - graphite electrodes.

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Company name: Showa Denko


Company name: Showa Denko
Category: Steelmaking electrode supplier.
Business location: Tokyo and Osaka, Japan

Expertise: Graphite electrodes.
Keywords: Artificial graphite powder, graphite electrodes.
Website: http://www.sdk.co.jp/english/work/carbons.html
Telephone: 81-3-5470-3676 [Tokyo]
Telephone: 81-6-6578-5207 [Osaka]

Other information: Showa Denko K.K. was set up in 1939 with the merger of Showa Fertilizers K.K. (which was the first ammonia maker introducing domestically-developed technology) and Nihon Iodine K.K. (which pioneered commercial production of aluminum in Japan).

Today, the Showa Denko Carbon Products Division supplies graphite electrodes for electric steelmaking furnaces. These electrodes are indispensable for the recycling of iron and steel - key characteristics are good electrical conductivity, high resistance to thermal shock and low oxidation at elevated temperatures.

The division also supplies high-quality recarburizer for iron casting.

Recent news
  • 2020: Announces merger of subsidiaries - merger of Showa Denko Carbon Holding (SDCH) with Showa Denko Europe (SDE). Purpose of this merger was the further expansion of business operations in Europe.
  • 2020: Announces closure of graphite electrodes production site in Meitingen Germany. Meitingen output [connecting pins] to be transferred to the Omachi Plant in Japan.
  • 2017: Showa Denko (SDK) completes acquisition of SGL GE Holding GmbH, a graphite electrode production company, making it a wholly owned subsidiary of SDK. The acquired company's name was changed to 'SHOWA DENKO CARBON Holding GmbH' at the point of business purchase. This acquisition involved acquisition of six plants (two in the USA and one each in Germany, Spain, Austria and Malaysia) and brought the company'’s total electrode capacity up to 250ktpy.
  • 2015: Completes expansion of high-purity aluminum foil plant in China.
  • 2014: Launches new aluminum casting plant in Malaysia.



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