![Seong-Il Hwang](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-Il Hwang
Chief Executive Officer at
GIS CO., LTD.
Net worth: 29 M $ as of 2026-09-29
Profile
Seong-Il Hwang is currently Chief Executive Officer & Director at GIS Co., Ltd. since 2000 and Director at GOOIL SOLUTION Co., Ltd. Formerly, Mr. Hwang was Chief Executive Officer at NEONTECH Co., Ltd. Education includes an undergraduate degree from Wonkwang University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
GIS CO., LTD. 40.49% | 2025-09-29 | 19,412,156 ( 40.49% ) | 29 M $ | 2026-09-29 |
Seong-Il Hwang active positions
| Companies | Position | Start |
|---|---|---|
| GIS CO., LTD. | Chief Executive Officer | 2000-10-19 |
Gooil Engineering Co., Ltd.
 Gooil Engineering Co., Ltd. Industrial MachineryProducer Manufacturing Manufactures display inspection equipment | Director/Board Member | - |
Former positions of Seong-Il Hwang
| Companies | Position | End |
|---|---|---|
NEONTECH Co., Ltd. /Old/
 NEONTECH Co., Ltd. /Old/ SemiconductorsElectronic Technology Develops semiconductor dicing equipment | Chief Executive Officer | - |
Education of Seong-Il Hwang
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
5
1st degree connections
4
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 4 |
|---|---|
Wonkwang University
 Wonkwang University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Gooil Engineering Co., Ltd.
Gooil Engineering Co., Ltd. Industrial MachineryProducer Manufacturing Manufactures display inspection equipment | Producer Manufacturing |
NEONTECH Co., Ltd. /Old/
NEONTECH Co., Ltd. /Old/ SemiconductorsElectronic Technology Develops semiconductor dicing equipment | Electronic Technology |
Neontech Co., Ltd.
 Neontech Co., Ltd. SemiconductorsElectronic Technology Develops and manufactures semiconductor dicing equipment | Electronic Technology |
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