Hsinchu, Taiwan

AUO Corporation ("AUO" or the "Company") (TAIEX: 2409; NYSE: AUO) today announced preliminary consolidated net sales of NT$14,618 million and unconsolidated net sales of NT$14,596 million for the month of March 2005.

Preliminary shipments of large-sized panels^(a) for applications such as desktop monitor, notebook PC, LCD TV, and other applications, broke the two-million mark in March 2005 to set a new record of 2.33 million, up 29.1% from the previous month. Shipments of small- and medium-sized panels increased by 23.4% M-o-M to reach 3.39 million.

Unaudited consolidated revenues for the month of March 2005 increased by 26.9%, while unconsolidated net sales rose 26.8%, sequentially. On a year-over-year basis, March 2005 consolidated revenues decreased by 3.2%, while unconsolidated net sales increased 4.8%. For the first three months ended March 31, 2005, preliminary consolidated and unconsolidated revenues amounted to NT$38,837 million and NT$38,796 million, while preliminary shipments of large-sized panels and small- and medium-sized panels totaled 6.04 million and 8.64 million, respectively.

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

Sales Report：

(Unit：NT$ million)