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Joo-Sung Lee
Chief Executive Officer at
SEAH STEEL HOLDINGS CORPORATION
Net worth: 118 M $ as of 30/06/2026
Profile
Joo-Sung Lee is currently President, Co-Chief Executive Officer & Director at SeAH Steel Holdings Corp.
Current roles also include Chief Executive Officer at Apac Investors Co., Ltd. and Sedae Asset Co., Ltd., Director at Seah Metals & Solution Corp., President & Director at SeAH Steel Corp., and Auditor at Jeenyang Industrial Co. Ltd. Former positions include Non-Executive Director at SEAH Resources & Investment Co., Ltd. and Executive Board Member & Head-Planning at SeAH Besteel Holdings Corp.
Education includes graduate studies at The Trustees of Columbia University in The City of New York and undergraduate studies at The University of Chicago.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 30/09/2025 | 895,729 ( 21.63% ) | 66 M $ | 30/06/2026 | |
SeAH Holdings Corp.
 SeAH Holdings Corp. SteelNon-Energy Minerals Engages in steel, energy and telecommunication industries 16.92% | 03/07/2026 | 717,953 ( 16.92% ) | 52 M $ | 30/06/2026 |
SEAH STEEL CORP. 0.35% | 30/09/2025 | 10,000 ( 0.35% ) | 806 171 $ | 30/06/2026 |
Joo-Sung Lee active positions
| Companies | Position | Start |
|---|---|---|
| SEAH STEEL HOLDINGS CORPORATION | Chief Executive Officer | - |
| SEAH STEEL CORPORATION | President | - |
Jeenyang Industrial Co. Ltd.
 Jeenyang Industrial Co. Ltd. SteelNon-Energy Minerals Manufactures rolled steel bars, peeled round bars and cold drawn bars | Comptroller/Controller/Auditor | - |
Seah Metals & Solution Corp.
 Seah Metals & Solution Corp. Other Metals/MineralsNon-Energy Minerals Manufactures alloys of non-ferrous metals | Director/Board Member | - |
Apac Investors Co., Ltd.
 Apac Investors Co., Ltd. Real Estate DevelopmentFinance Engages in the real estate business | Chief Executive Officer | - |
Sedae Asset Co., Ltd.
 Sedae Asset Co., Ltd. Investment Banks/BrokersFinance Provides commodity brokerage services | Chief Executive Officer | - |
Former positions of Joo-Sung Lee
| Companies | Position | End |
|---|---|---|
SEAH Resources & Investment Co., Ltd.
 SEAH Resources & Investment Co., Ltd. Real Estate DevelopmentFinance Provides real estate agents services | Director/Board Member | - |
| SEAH BESTEEL HOLDINGS CORPORATION | Corporate Officer/Principal | - |
Training of Joo-Sung Lee
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
8
1st degree connections
10
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 10 |
|---|---|
The Trustees of Columbia University in The City of New York
 The Trustees of Columbia University in The City of New York Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
SeAH Steel Holdings Corp.
 SeAH Steel Holdings Corp. SteelNon-Energy Minerals Manufactures and sells steel pipes | Non-Energy Minerals |
SeAH Besteel Holdings Corp.
 SeAH Besteel Holdings Corp. SteelNon-Energy Minerals Produces specialty steel, forged steel, aluminum parts & other steel products | Non-Energy Minerals |
The University of Chicago
 The University of Chicago Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Apac Investors Co., Ltd.
Apac Investors Co., Ltd. Real Estate DevelopmentFinance Engages in the real estate business | Finance |
Sedae Asset Co., Ltd.
Sedae Asset Co., Ltd. Investment Banks/BrokersFinance Provides commodity brokerage services | Finance |
Jeenyang Industrial Co. Ltd.
Jeenyang Industrial Co. Ltd. SteelNon-Energy Minerals Manufactures rolled steel bars, peeled round bars and cold drawn bars | Non-Energy Minerals |
Seah Metals & Solution Corp.
Seah Metals & Solution Corp. Other Metals/MineralsNon-Energy Minerals Manufactures alloys of non-ferrous metals | Non-Energy Minerals |
SEAH Resources & Investment Co., Ltd.
SEAH Resources & Investment Co., Ltd. Real Estate DevelopmentFinance Provides real estate agents services | Finance |
SeAH Steel Corp.
 SeAH Steel Corp. SteelNon-Energy Minerals Manufactures steel pipe and other steel products | Non-Energy Minerals |
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