![Seong-Deok An](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Seong-Deok An
Chief Executive Officer at
Cosmo & Co., Inc.
Net worth: 22 327 $ as of 2026-05-30
Profile
Seong-Deok An currently works at Cosmo & Co., Inc., as Co-Chief Executive Officer and Landmark Asia, Inc., as Chief Executive Officer.
Mr. An also formerly worked at COSMO CHEMICAL Co., Ltd., as Chief Executive Officer & Vice Chairman, Cosmo AM&T Co., Ltd., as Vice Chairman from 2020 to 2025, Cosmo Industrial Co., Ltd., as Director, and Majesty Golf Korea Co., Ltd., as Director.
Mr. An received his undergraduate degree from Ajou University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
Mirae Asset Securities Co., Ltd.
 Mirae Asset Securities Co., Ltd. Investment Banks/BrokersFinance Provides bond dealing, wealth management, investment banking and financial consulting services 0% | 2026-03-23 | 548 ( 0% ) | 22 327 $ | 2026-05-30 |
Seong-Deok An active positions
| Companies | Position | Start |
|---|---|---|
Cosmo & Co., Inc.
 Cosmo & Co., Inc. Wholesale DistributorsDistribution Services Operates as product wholesaler for construction material, chemicals and home appliances | Chief Executive Officer | - |
Landmark Asia, Inc.
 Landmark Asia, Inc. HomebuildingConsumer Durables Engages in new multifamily housing construction | Chief Executive Officer | - |
Former positions of Seong-Deok An
| Companies | Position | End |
|---|---|---|
| COSMO CHEMICAL CO., LTD. | Chief Executive Officer | 2025-03-25 |
| COSMO ADVANCED MATERIALS & TECHNOLOGY CO., LTD. | Director/Board Member | 2025-03-23 |
Majesty Golf Korea Co., Ltd.
 Majesty Golf Korea Co., Ltd. Wholesale DistributorsDistribution Services Wholesales sporting and recreational goods & supplies | Director/Board Member | - |
Cosmo Industrial Co. Ltd.
 Cosmo Industrial Co. Ltd. Miscellaneous ManufacturingProducer Manufacturing Manufactures plastic wire and hoses | Director/Board Member | - |
Training of Seong-Deok An
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
11
1st degree connections
7
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 7 |
|---|---|
Cosmo AM&T Co., Ltd.
 Cosmo AM&T Co., Ltd. Electronic Equipment/InstrumentsElectronic Technology Manufactures and supplies magnetic tapes | Electronic Technology |
COSMO CHEMICAL Co., Ltd.
 COSMO CHEMICAL Co., Ltd. Chemicals: SpecialtyProcess Industries Produces oxide titanium chemicals | Process Industries |
Cosmo & Co., Inc.
Cosmo & Co., Inc. Wholesale DistributorsDistribution Services Operates as product wholesaler for construction material, chemicals and home appliances | Distribution Services |
Majesty Golf Korea Co., Ltd.
Majesty Golf Korea Co., Ltd. Wholesale DistributorsDistribution Services Wholesales sporting and recreational goods & supplies | Distribution Services |
Cosmo Industrial Co. Ltd.
Cosmo Industrial Co. Ltd. Miscellaneous ManufacturingProducer Manufacturing Manufactures plastic wire and hoses | Producer Manufacturing |
Ajou University
 Ajou University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Landmark Asia, Inc.
Landmark Asia, Inc. HomebuildingConsumer Durables Engages in new multifamily housing construction | Consumer Durables |
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- Seong-Deok An
