U.S. SEC Filings

Latest UMC SEC filings are available through the

.

U.S. Annual Report (Form 20-F)

2007 Form 20-F

2002~2006 U.S. Annual Report (Form 20-F)

U.S. Annual Report (Form 20-F) 2006 Form 20-F 2005 Form 20-F 2004 Form 20-F 2003 Form 20-F 2002 Form 20-F

Shareholders may request a hard copy of the Form 20-F free of charge. Please contact UMC-IR at ir@umc.com.