Hangzhou Changchuan Technology Hangzhou Changchuan Technology (杭州长川科技股份有限公司) is a company engaged in research and development, production, and sales of integrated circuit test equipment. | ![]() DH Energy & Environment DH Energy & Environment (formerly known as Technew Precision) is a company that produces automatic machinery. | ![]() D3 Semiconductor D3 Semiconductor is a manufacturer of super junction power metal–oxide–semiconductor field-effect transistors (MOSFETs). | |
Founding Date | Founding Date 2008 | Founding Date 2004 | Founding Date 2011 |
Type | Type Public | Type Subsidiary | Type Private |
Tags | |||
Locations | Locations Hangzhou, CN HQ | Locations Cheonan, KR HQ | Locations Plano, US HQ Shanghai, CN |
Employees | Employees 3,800 | Employees 36 | Employees 3 |

DH Energy & Environment (formerly known as Technew Precision) is a company that produces automatic machinery.
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D3 Semiconductor is a manufacturer of super junction power metal–oxide–semiconductor field-effect transistors (MOSFETs).
View company