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4004 on Tokyo Stock Exchange

Shōwa Denkō

Logo: レゾナック, Public domain, via Wikimedia Commons3

Shōwa Denkō is a Japanese company replaced by Resonac Holdings Corporation based in Minato, founded in 1939.1 It employed about 10,900 people in 2017.1 Its revenue was ¥1.1 Its shares trade on Tokyo Stock Exchange under the symbol 4004.1

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Last updated Oct 21, 2026.

Overview

Jun 1, 1939Founded1

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  • Ticker4004 on Tokyo Stock Exchange1
  • Industrychemical industry1
  • HeadquartersMinato1
  • Websitewww.resonac.com
  • Legal formkabushiki gaisha1
  • LEI5493006AIPA1V92YPP182
  • StatusActive2
  • LEI statusIssued and current2
  • Registered address東新橋一丁目９番１号, 105-7325 東京都 港区, Japan2
  • Registered withLegal Affairs Bureau, 0104-01-0145482

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Corporate structure

Shōwa Denkō sits at the top of its group. 9 entities, 5 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Shōwa Denkō 東京都 港区, Japan
    • GMM Nonstick Coatings Subsidiary
    • RESONAC AMERICA, INC. Subsidiary · San Jose, California, United States
    • Resonac Europe GmbH Subsidiary · Wiesbaden, Germany
    • Resonac Graphite Germany GmbH Subsidiary · Gersthofen, Germany
    • RESONAC GRAPHITE SPAIN, S.A. Subsidiary · A Coruna, Spain
    • SHOWA DENKO CARBON Products Germany GmbH & Co. KG Subsidiary · Gersthofen, Germany
    • 株式会社レゾナック Subsidiary · 東京都 港区, Japan
      • RESONAC MATERIALS JOHOR SDN. BHD. Subsidiary · Pasir Gudang, Malaysia

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

Subsidiaries and ownership

Subsidiaries

From Wikidata.1

Acquisitions

  1. Succeeded Showa Fertilizer Manufacturing Company1
  2. Succeeded by Resonac Holdings Corporation1

Employees over time

  • 201710,8641

Revenue over time

As stated on Wikidata, in the currency reported.

Net income

  • 201733.5B JPY1

Timeline

  1. May 1949Went public Listed on Tokyo Stock Exchange1
  2. Jun 1, 1939Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
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  3. 3