Hsinchu, Taiwan,

AUO Corporation ("AUO" or the "Company") (TAIEX: 2409; NYSE: AUO) today announced preliminary consolidated December 2006 monthly revenues of NT$28,182 million and unconsolidated revenues totaled NT$28,150 million, decreasing 15.1% and 15.2% respectively from last month. On a year-over-year comparison, December 2006 consolidated and unconsolidated revenues increased by 14.6% and 14.5% correspondingly.

Due to an early sign of controlling year-end inventory from some of customers and the seasonality, shipments of large-sized panels used in desktop monitor, notebook PC, LCD TV and other applications, reached 5.04 million units, a 12.8% decrease from November 2006. Shipments of small- and medium-sized panels totaled 7.20 million, a 12.4 % sequential decrease due to seasonal demand.

Preliminary shipments of large-sized panels for the fourth quarter reached 16.62 million, a 31.7% sequential increase, while shipments for small- and medium-sized panels also increased to total 24.48 million, a 17.7 % sequential growth.

For the year ended December 31, 2006, unaudited consolidated and unconsolidated revenue totaled NT$293,098 million and NT$293,028 million respectively, representing 34.8% and 34.9% Y-o-Y growth. Unit shipments increased by 59.1% for large-sized panels and 46.6% for small- and medium-sized panels.

(a) Large-size refers to panels that are 10 inches and above in diagonal measurement while small- and medium-size refers to those below 10 inches.

Sales Report：

(Unit：NT$ million)