29. The industrial installations vary from a simple facility of 278 square meters (3,000 square feet) of floorspace with two or three large fabrication building to an elaborate complex of more than 741,450 square meters (8.0 million square feet) of floorspace with more than 100 fabrication, assembly, and shop-type buildings. The largest of these is Shih-yen-chen Unidentified Industrial Complex [redacted] which covers approximately 45 square nm and contains more than 140 large fabrication, assembly, and shop-type buildings (Figure 12).]