► GemTech Optoelectronics Corp. Address: No. 5-2, Jilin Rd., Chungli Dist, Taoyuan City 320, Taiwan (R.O.C.) Phone: 886-3-4342538 Fax: 886-3-4342539 ► GemTech Dayuan second plant Address: No.82, Aly. 29, Ln. 536, Sec. 3, Jhongjheng E. Rd., Dayuan Dist., Taoyuan City 337, Taiwan (R.O.C.)