![Yoo-In Oh](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>)
Yoo-In Oh
Chief Executive Officer at
CHEIL GRINDING WHEEL IND. CO., LTD.
Net worth: 28 M $ as of 2026-05-30
Profile
Yoo-In Oh currently works at CHEILGRINDING WHEEL INDUSTRIAL Co., Ltd., as Chairman & Co-Chief Executive Officer from 2016, Korea International Trade Association, as Vice Chairman, Korea Polishing Industry Cooperative Or.
Ltd., as Chairman, and Keumsung Grinding Wheel Co., Ltd., as Director.
Mr. Oh also formerly worked at Semyung Industrial Co., Ltd. (South Korea), as Chief Executive Officer from 2014 to 2021.
Mr. Oh received his undergraduate degree from Hanyang University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2025-09-29 | 3,856,744 ( 39.35% ) | 25 M $ | 2026-05-30 | |
DONGIL METAL Co., Ltd.
 DONGIL METAL Co., Ltd. SteelNon-Energy Minerals Manufactures steel castings for heavy equipment 5.36% | 2025-09-02 | 488,075 ( 5.36% ) | 2 M $ | 2026-05-30 |
DONGIL INDUSTRIES Co., Ltd.
 DONGIL INDUSTRIES Co., Ltd. SteelNon-Energy Minerals Manufactures and sells steel bars, alloy iron and casting products & automobile parts 1.89% | 2026-07-01 | 45,942 ( 1.89% ) | 1 M $ | 2026-05-30 |
Yoo-In Oh active positions
| Companies | Position | Start |
|---|---|---|
| CHEIL GRINDING WHEEL IND. CO., LTD. | Chief Executive Officer | 1972-02-27 |
Korea Polishing Industry Cooperative Or. Ltd. | Chairman | 2011-04-05 |
Korea International Trade Association
 Korea International Trade Association Miscellaneous Commercial ServicesCommercial Services Operates as a business organization for trades | Director/Board Member | 2011-04-06 |
Keumsung Grinding Wheel Co., Ltd.
 Keumsung Grinding Wheel Co., Ltd. Industrial SpecialtiesProcess Industries Supplies wheel, grinding, tool, stone, segment, diamond, abrasive | Director/Board Member | - |
Former positions of Yoo-In Oh
| Companies | Position | End |
|---|---|---|
Semyung Industrial Co., Ltd. (South Korea)
 Semyung Industrial Co., Ltd. (South Korea) Auto Parts: OEMProducer Manufacturing Manufacturers automobile parts | Chief Executive Officer | 2021-02-07 |
Training of Yoo-In Oh
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
16
1st degree connections
6
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 6 |
|---|---|
CHEILGRINDING WHEEL INDUSTRIAL Co., Ltd.
 CHEILGRINDING WHEEL INDUSTRIAL Co., Ltd. Industrial MachineryProducer Manufacturing Manufactures abrasive articles and grinding wheel products | Producer Manufacturing |
Hanyang University
 Hanyang University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Korea International Trade Association
Korea International Trade Association Miscellaneous Commercial ServicesCommercial Services Operates as a business organization for trades | Commercial Services |
Keumsung Grinding Wheel Co., Ltd.
Keumsung Grinding Wheel Co., Ltd. Industrial SpecialtiesProcess Industries Supplies wheel, grinding, tool, stone, segment, diamond, abrasive | Process Industries |
Semyung Industrial Co., Ltd. (South Korea)
Semyung Industrial Co., Ltd. (South Korea) Auto Parts: OEMProducer Manufacturing Manufacturers automobile parts | Producer Manufacturing |
Korea Polishing Industry Cooperative Or. Ltd. |
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