Gia Tzoong Enterprise Co. Ltd. is engaged in the manufacture of single-sided, double-sided, and multilayer printed circuit boards. It operates through the Circuit Board and Property Investment segments. It offers invisible LED troffer luminaries, PCBA service, MCPCB, FR4, ridgid-flex board, direct bond copper, heavy copper board, micro-wave telecommunication and related products. The company was founded on September 19, 1988 and is headquartered in Taoyuan, Taiwan.