Sign in

Private company

SeAH Aerospace & Defense

Logo: SeAH Aerospace & Defense, Public domain, via Wikimedia Commons3

South Korean aerospace manufacturer

SeAH Aerospace & Defense (Korean: 세아항공방산소재) is a South Korean manufacturer of aluminum alloy materials and products. The company produces aluminum extrusion and forging products used in aerospace, defense, and other industrial sectors.2 It is part of SeAH Besteel Holdings.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1945Founded1

See how the biggest companies compare on our leaderboards

SeAH Aerospace & Defense (Korean: 세아항공방산소재) is a South Korean manufacturer of aluminum alloy materials and products. The company produces aluminum extrusion and forging products used in aerospace, defense, and other industrial sectors.2

Corporate structure

SeAH Aerospace & Defense is part of a group headed by SeAH Besteel Holdings. 2 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

Subsidiaries and ownership

Parent company

From Wikidata.1

Former names

  • Siheung Industries1945 to 20201

Timeline

  1. 2020Renamed Name changed to 세아항공방산소재1
  2. 2020Renamed Name changed to SeAH Aerospace & Defense1
  3. 1945Founded Founded1

Sources

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

  1. 1
  2. 2
  3. 3