Private company
同友
同友 is a Japanese company based in Ōdate, founded in 1969, dissolved in 2002.1 It is part of Dowa Holdings.1
同友株式会社（どうゆう）は、官営時代からの小坂鉱山従業員向け販売施設を源流とし、同和鉱業の子会社としてかつてはスーパーマーケット事業を展開していた企業である。2 From the Japanese Wikipedia, CC BY-SA 4.0
Last updated Oct 20, 2026.
Overview
Sep 16, 1969Founded1
- HeadquartersŌdate, Japan1
Corporate structure
同友 is part of a group headed by Dowa Holdings. 12 entities, 2 countries on record. Switch between the flow chart and the network, and select any entity to see its details.
- Dowa Holdings 東京都 千代田区, Japan
- 同友 Ōdate, Japan
- Akita Zinc Subsidiary · Akita Prefecture, Japan
- Dowa Hightech Subsidiary
- Dowa IP Creation Subsidiary
- DOWA Metals & Mining Co., Ltd. Subsidiary · Tokyo, Japan
- DOWA Metals and Mining America Subsidiary · Burlington City, United States
- ECO-SYSTEM RECYCLING CO.,LTD. Subsidiary · Saitama Prefecture, Japan
- Kowa Seiko Subsidiary · Fukuoka Prefecture, Japan
- DOWAサーモテック株式会社 Subsidiary · 東京都 千代田区, Japan
- DOWAメタルマイン株式会社 Subsidiary · 東京都 千代田区, Japan
- Kosaka Smelting & Refining Kosaka Line Subsidiary · Akita Prefecture, Japan
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
Parent company
From Wikidata.1
Timeline
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1Wikidata同友 on Wikidata
- 2Wikipedia同友 on the Japanese Wikipedia