Website: http://www.gpmcorp.com.tw/

Address: 4 F., No. 5-1, Chuangxin 1st Rd., Baoshan Township, Hsinchu County 30076,

Website: https://www.contrel.com.tw/

Address: No. 9, Nanke 6th Rd., Xinshi Dist., Tainan City 74144,

Website: http://www.shuztung.com/

Address: No. 30, Houke S. Rd., Houli Dist., Taichung City 42152.

Website: http://www.fittech.com.tw/

Address: 1 F., No. 3, Gongyequ 35th Rd., Xiehe Vil., Xitun Dist., Taichung City 40768.