Ying Tang Tseng
Founder at SIWARD CRYSTAL TECHNOLOGY CO., LTD
Ying Tang Tseng active positions
| Companies | Position | Start | End |
|---|---|---|---|
| SIWARD CRYSTAL TECHNOLOGY CO., LTD | Chairman | 1988-01-25 | - |
| Founder | 1988-01-25 | - | |
| LITON TECHNOLOGY CORP. | Director/Board Member | 2015-06-14 | - |
| Independent Dir/Board Member | 2015-06-14 | - | |
| SECURITAG ASSEMBLY GROUP CO., LTD. | Chairman | 2005-02-24 | - |
| Siward Technology Co. Ltd. | Director/Board Member | - | - |
| Siward Crystal Technology (Wuxi) Co. Ltd. | Director/Board Member | - | - |
Apex Optech Corp.
 Apex Optech Corp. Electronics DistributorsDistribution Services Apex Optech Corp. distributes semiconductors. The private company is based in Chu Pei, Taiwan. and has subsidiaries in China. | Director/Board Member | - | - |
Apex Optech (Wuxi) Co. Ltd.
 Apex Optech (Wuxi) Co. Ltd. SemiconductorsElectronic Technology Part of Apex Optech Corp., Apex Optech (Wuxi) Co. Ltd. is a Chinese company that manufactures quartz wafers. The private company is based in Wuxi, China. | Director/Board Member | - | - |
| Siward Enterprise, Inc. | Chairman | - | - |
| Siward Crystal Technology(s) Pte Ltd. | Chairman | - | - |
Career history of Ying Tang Tseng
Former positions of Ying Tang Tseng
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|---|---|---|---|
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Statistics
International
| Taiwan | 6 |
| China | 3 |
| New Zealand | 2 |
Operational
| Director/Board Member | 6 |
| Chairman | 4 |
| Founder | 1 |
Sectoral
| Electronic Technology | 6 |
| Distribution Services | 2 |
Positions held
Active
Inactive
Listed companies
Private companies
Linked companies
| Listed companies | 4 |
|---|---|
| SIWARD CRYSTAL TECHNOLOGY CO., LTD | Electronic Technology |
| RAKON LIMITED | Electronic Technology |
| LITON TECHNOLOGY CORP. | Electronic Technology |
| SECURITAG ASSEMBLY GROUP CO., LTD. | Electronic Technology |
| Private companies | 6 |
|---|---|
| Siward Technology Co. Ltd. | |
Apex Optech Corp.
Apex Optech Corp. Electronics DistributorsDistribution Services Apex Optech Corp. distributes semiconductors. The private company is based in Chu Pei, Taiwan. and has subsidiaries in China. | Distribution Services |
| Siward Crystal Technology (Wuxi) Co. Ltd. | |
Apex Optech (Wuxi) Co. Ltd.
Apex Optech (Wuxi) Co. Ltd. SemiconductorsElectronic Technology Part of Apex Optech Corp., Apex Optech (Wuxi) Co. Ltd. is a Chinese company that manufactures quartz wafers. The private company is based in Wuxi, China. | Electronic Technology |
| Siward Enterprise, Inc. | |
| Siward Crystal Technology(s) Pte Ltd. |
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