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SeAH

세아 · FTC designation May 2026

Controlling person
Lee Soon-hyung 이순형
Main company
(주)세아홀딩스
Member companies
24
Listed / Unlisted
4 / 20
Market value of listed members
₩2.4T

Daily −3.49%Weekly −10.96%Monthly −18.99%1Y +5.66%

Which SeAH companies are listed in Korea?

SeAH (세아) is one of Korea's business groups (chaebol); 4 of its companies are listed, worth ₩2.4T in total. On Oct 26, 2026 the group moved down 3.49% (weighted by market value); the largest members are SeAH Besteel Holdings, Seah Holdings, SeAH Steel Holdings.

Key facts

Stocks
4
Total market value
₩2.4T
Day's move
−3.49%
As of
Oct 26, 2026
Largest members
SeAH Besteel Holdings, Seah Holdings, SeAH Steel Holdings

Ownership map

50.1%SeAH Steel Holdings owns 50.1% SeAH Steel61.7%Seah Holdings owns 61.7% SeAH Besteel HoldingsSeah HoldingsSeah HoldingsSeAH Besteel HoldingsSeAH Besteel HoldingsSeAH Steel HoldingsSeAH Steel HoldingsSeAH SteelSeAH Steel

Bubbles are listed group companies (size = market cap). Arrows show who owns how much of whom, from stakes disclosed in annual reports; stakes under 1% are only in the list. Tap a bubble to open the stock.

Who owns whom (2)
CompanyPriceDailyMonthlyMarket cap
SeAH Besteel Holdings001430 · Steel & Materials
₩31,700−3.79%−27.63%₩1.1T
Seah Holdings058650 · Steel & Materials
₩120,000−2.12%−7.83%₩487B
SeAH Steel Holdings003030 · Holding companies
₩96,200−4.28%−10.01%₩398B
SeAH Steel306200 · Steel & Materials
₩121,100−3.51%−16.60%₩343B
Unlisted member companies (20)

Not traded on KOSPI or KOSDAQ (or not matched to a listed stock by registration number or exact name).

CompanyIndustryIn group since
동아스틸(주)철강관 제조업Aug 2018
탈리다쿰(주)의약품, 의료용 기구, 화장품 및 방향제 소매업Jun 2019
(주)씨티씨철강관 제조업Oct 2019
(주)세아씨엠기타 1차 철강 제조업Jul 2017
(주)피앤아이1차 플라스틱제품 제조업Jul 2012
(주)브이엔티지컴퓨터시스템 통합 자문, 구축 및 관리업Aug 2020
(주)세아베스틸제철, 제강 및 합금철 제조업May 2022
(주)세아특수강철강 압연, 압출 및 연신제품 제조업May 1988
(주)에이치피피그 외 기타 금융업Jun 2014
(주)세아기술투자그 외 기타 금융업Jan 2023
(주)세아네트웍스비주거용 건물 건설업Jun 1992
(주)세아엘앤에스도로 화물 운송업Feb 1985
(주)세아엠앤에스비철금속 제련, 정련 및 합금 제조업Jan 2011
(주)아이언그레이부동산 임대업Jan 2013
(주)세아창원특수강제철, 제강 및 합금철 제조업Jun 2015
(주)세아항공방산소재기타 1차 비철금속 제조업Apr 2020
(주)에스에스아이케이1차 금속제품 및 금속광물 도매업Jan 2018
(주)에이팩인베스터스그 외 기타 금융업Mar 1960
(주)세아스틸인터내셔날경영 컨설팅 및 공공 관계 서비스업Jun 2018
(주)에이앤에이인베스트경영 컨설팅 및 공공 관계 서비스업Aug 2020

Source: KRX statistical information