![Gyung-Ho Ryoo](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>)
Gyung-Ho Ryoo
Director/Board Member at
SAMBO CORRUGATED BOARD CO., LTD.
Net worth: 12 M $ as of 2026-06-29
Profile
Mr. Gyung-Ho Ryoo is a Chief Executive Officer at Sambo Development Co., Ltd. He is on the Board of Directors at New Uni Packing Co., Ltd., SAMBO CORRUGATED BOARD Co., Ltd. and SAMHWA CORRUGATED Co., Ltd. Mr. Ryoo was previously employed as a Co-Chief Executive Officer by KOREA PAPER Mfg.
Co., Ltd. He received his graduate degree from Yonsei University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2025-09-29 | 2,213,581 ( 13.83% ) | 12 M $ | 2026-06-29 |
Gyung-Ho Ryoo active positions
| Companies | Position | Start |
|---|---|---|
| SAMBO CORRUGATED BOARD CO., LTD. | Director/Board Member | - |
SAMHWA CORRUGATED Co., Ltd.
 SAMHWA CORRUGATED Co., Ltd. Pulp & PaperProcess Industries Manufactures corrugated cardboards | Director/Board Member | - |
New Uni Packing Co., Ltd. | Director/Board Member | - |
Sambo Development Co., Ltd.
 Sambo Development Co., Ltd. Movies/EntertainmentConsumer Services Operates as public golf courses | Chief Executive Officer | - |
Former positions of Gyung-Ho Ryoo
| Companies | Position | End |
|---|---|---|
KOREA PAPER Mfg. Co., Ltd.
 KOREA PAPER Mfg. Co., Ltd. Pulp & PaperProcess Industries Manufactures kraft paper for corrugated cardboard | Chief Executive Officer | - |
Training of Gyung-Ho Ryoo
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
7
1st degree connections
6
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 6 |
|---|---|
SAMBO CORRUGATED BOARD Co., Ltd.
 SAMBO CORRUGATED BOARD Co., Ltd. Containers/PackagingProcess Industries Manufactures corrugated cardboards and boxes | Process Industries |
Yonsei University
 Yonsei University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Sambo Development Co., Ltd.
Sambo Development Co., Ltd. Movies/EntertainmentConsumer Services Operates as public golf courses | Consumer Services |
KOREA PAPER Mfg. Co., Ltd.
KOREA PAPER Mfg. Co., Ltd. Pulp & PaperProcess Industries Manufactures kraft paper for corrugated cardboard | Process Industries |
SAMHWA CORRUGATED Co., Ltd.
SAMHWA CORRUGATED Co., Ltd. Pulp & PaperProcess Industries Manufactures corrugated cardboards | Process Industries |
New Uni Packing Co., Ltd. |
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