- Hyosung Crystal Co., Ltd.
- crystal oscillators, quartz crystal units, oscillators, monolithic crystal filters.
- Address:688-3 Kochan-Dong Namdong-Gu Incheon 405-310 Korea
- Electronics Components Co., Ltd.
- Tuning fork crystal resonators, SMD type crystal resonators, Monolithic Crystal Filters, SAW Devices.
- Address:CEC Information Building, No1 Xinwen Road, Futian District, Shenzhen city Shenzhen Guangdong China
- Taizhou Abel Electron Co.,Ltd.
- quartz crystal resonator, crystal oscillator, monolithic crystal filters, SMD Tuning Fork.
- Address:655 Jingyi Rd Taizhou Economic Development Zone ZheJiang China Taizhou Zhejiang 318000 China
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