![Se-Joon Chang](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>)
Se-Joon Chang
Chief Executive Officer at
KOREA CIRCUIT CO., LTD.
Net worth: 196 M $ as of 2026-09-29
Profile
Mr. Se-Joon Chang is a Vice Chairman & Chief Executive Officer at KOREA CIRCUIT Co., Ltd. He is on the Board of Directors at KOREA CIRCUIT Co., Ltd. Mr. Chang was previously employed as a Chief Executive Officer & Vice President by Young Poong Electronics Co., Ltd. He received his undergraduate degree from the University of Southern California, a graduate degree from the University of Southern California and an MBA from Pepperdine University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
Young Poong Corp.
 Young Poong Corp. Electronic ComponentsElectronic Technology Manufactures printed circuit boards 18.11% | 2026-05-19 | 3,333,492 ( 18.11% ) | 102 M $ | 2026-09-29 |
| 2026-03-30 | 1,602,272 ( 6.68% ) | 88 M $ | 2026-09-29 | |
Young Poong Precision Corp.
 Young Poong Precision Corp. Industrial MachineryProducer Manufacturing Supplies process pumps, valves and other chemical-related products 4.67% | 2026-03-26 | 735,040 ( 4.67% ) | 6 M $ | 2026-09-29 |
Se-Joon Chang active positions
| Companies | Position | Start |
|---|---|---|
| KOREA CIRCUIT CO., LTD. | Chief Executive Officer | - |
Former positions of Se-Joon Chang
| Companies | Position | End |
|---|---|---|
Young Poong Electronics Co., Ltd.
 Young Poong Electronics Co., Ltd. Electrical ProductsProducer Manufacturing Manufactures printed circuit boards | Chief Executive Officer | - |
Education of Se-Joon Chang
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
6
1st degree connections
4
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 4 |
|---|---|
KOREA CIRCUIT Co., Ltd.
 KOREA CIRCUIT Co., Ltd. Electronic ComponentsElectronic Technology Engages in the manufacture of printed circuit boards | Electronic Technology |
University of Southern California
 University of Southern California Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Pepperdine University
 Pepperdine University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Young Poong Electronics Co., Ltd.
Young Poong Electronics Co., Ltd. Electrical ProductsProducer Manufacturing Manufactures printed circuit boards | Producer Manufacturing |
- Stock Market
- Insiders
- Se-Joon Chang
