Fab 1 is located at Taichung City with a footprint area of 2,129 square meters. It commenced its pilot-run operation in 2000 with main products in LED chips and wafers.
Address of fab 1: No. 40 Industrial 34th Road, Taichung Industrial Park, Taichung 407, Taiwan.

Fab 2 is located at Taichung City with a footprint area of 2,159 square meters.
Address of fab 2: No. 40-1 Industrial 34th Road, Taichung Industrial Park, Taichung 407, Taiwan.

Fab 3 is located in CTSP with a footprint area of 16,700 square meters. Fab 3 is slated for green field construction in the third quarter of 2007. Its pilot run is scheduled for the third quarter of 2008.
Address of fab 3: No.22 Keya Rd. Central Taiwan Science Park,Taichung,Taiwan