![Sam-Yeol Cho](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>)
Sam-Yeol Cho
Chairman at
RF MATERIALS CO., LTD.
Net worth: 120 M $ as of 2026-06-29
Profile
Sam-Yeol Cho was the founder of RFHIC Corp., founded in 1999, and held the title of Chief Technology Officer.
Current jobs included Chairman at RF Materials Co., Ltd. since 2017, Non-Executive Director at Philoptics Co., Ltd. since 2021, and Director & Chief Technology Officer at RFHIC Corp.
since 1999.
Former job includes Director at NH Special Purpose Acquisition 8 Co., Ltd. Education history includes graduate studies at Yonsei University and undergraduate studies at Kwangwoon University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
RFHIC CORP. 11.11% | 2026-02-10 | 2,950,300 ( 11.11% ) | 120 M $ | 2026-06-29 |
Sam-Yeol Cho active positions
| Companies | Position | Start |
|---|---|---|
| RFHIC CORPORATION | Chief Tech/Sci/R&D Officer | 1999-08-19 |
| PHILOPTICS CO., LTD. | Director/Board Member | 2021-03-28 |
| RF MATERIALS CO., LTD. | Chairman | 2017-10-19 |
Former positions of Sam-Yeol Cho
| Companies | Position | End |
|---|---|---|
NH Special Purpose Acquisition 8 Co., Ltd.
 NH Special Purpose Acquisition 8 Co., Ltd. Investment ManagersFinance Provides financial support services | Director/Board Member | - |
RFHIC Corp. /Old/
 RFHIC Corp. /Old/ Telecommunications EquipmentElectronic Technology Manufactures wireless communication infrastructure components | Founder | - |
Training of Sam-Yeol Cho
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
5
1st degree connections
7
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 7 |
|---|---|
Yonsei University
 Yonsei University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
RFHIC Corp. /Old/
RFHIC Corp. /Old/ Telecommunications EquipmentElectronic Technology Manufactures wireless communication infrastructure components | Electronic Technology |
Kwangwoon University
 Kwangwoon University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Philoptics Co., Ltd.
 Philoptics Co., Ltd. Industrial MachineryProducer Manufacturing Develops semiconductor machinery | Producer Manufacturing |
NH Special Purpose Acquisition 8 Co., Ltd.
NH Special Purpose Acquisition 8 Co., Ltd. Investment ManagersFinance Provides financial support services | Finance |
RF Materials Co., Ltd.
 RF Materials Co., Ltd. Industrial ConglomeratesProducer Manufacturing Manufactures RF communication parts | Producer Manufacturing |
RFHIC Corp.
 RFHIC Corp. SemiconductorsElectronic Technology Designs and manufactures RF & microwave components | Electronic Technology |
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