Showa Denko

Showa Denko

Showa Denko K. K. (昭和電工株式会社, Shōwa Denkō Kabushiki-gaisha?) is a leading Japanese chemical engineering firm.

Formed in 1939 by the merger of Nihon Electrical Industries and Showa Fertilizers, Showa Denko K.K. (SDK) manufactures chemical products and industrial materials. SDK's products serve a wide array of fields ranging from heavy industry to the electronic and computer industries. The company is divided in five business sectors: petrochemicals (olefins, organic chemicals, plastic products), aluminum (aluminum cans, sheets, ingots, foils), electronics (semiconductors, ceramic materials, hard disks), chemicals (industrial gases, ammonia, agrochemicals), and inorganic materials (ceramics, graphite electrodes). Showa Denko has more than 180 subsidiaries and affiliates. The company has overseas operations and a joint venture with Netherlands-based Montell and Nippon Petrochemicals to make and market polypropylenes. In March 2001, SDK merged with Showa Denko Aluminum Corporation to strengthen the high-value-added fabricated aluminum products operations, and is today developing next-generation optical communications-use wafers.

Read more about Showa DenkoHistory, Group Companies, Petrochemicals Sector, Chemicals Sector, Electronics Sector, Inorganics Sector, Aluminium Sector

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1959-69 - Outbreak of Niigata Minamata Disease
... The polluting factory (owned by Showa Denko) employed a chemical process using a mercury catalyst very similar to that used by Chisso in Minamata. 1966 a report was issued proving Showa Denko's pollution to be the cause of this second Minamata disease ... Unlike the patients in Minamata, the victims of Showa Denko's pollution lived a considerable distance from the factory and had no particular link to the company ...
Showa Denko - Controversy - Tryptophan Contamination
... In the late 1980s Showa Denko decided to change the method it used to produce tryptophan, from fermentation to the genetic engineering of bacteria ... Some epidemiological studies traced the outbreak to L-tryptophan supplied by Showa Denko ... The fact that the Showa Denko facility used genetically engineered bacteria to produce L-tryptophan gave rise to speculation that genetic engineering was ...