- Yeh Der Enterprise Co., Ltd
- Address:5F, No.12, Sec. 1, Zhongxing Rd., Wugu Dist New Taipei City Taiwan 24872 Taiwan
- Kojin Precision Industry Co. Ltd.
- Address:No.39, Taiping 23rd St., Taiping Dist., Taichung City , Taiwan Taichung City Taiwan 41144 Taiwan
- Hchardware Co,Ltd
- Address:40,Zhongzheng Road,Renwu Kaohsiung Tauwan Taiwan
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