UMC Reports Second Quarter 2013 Results

Communication accounted for 51% of revenue in 2Q13. The growth was driven by the increase in demand for wireless and handheld devices.

Blended ASP Trend for Foundry Segment

Blended average selling price (ASP) during 2Q13 remained relatively flat

(To view ASP trend, visit http://www.umc.com/english/investors/2Q13_ASP_trend.asp )

Shipment and Utilization Rate[4] for Foundry Segment

[4]	Utilization Rate = Quarterly Wafer Out / Quarterly Capacity


Wafer Shipments
	2Q13	1Q13	4Q12	3Q12	2Q12
Wafer Shipments (8" K equivalents)	1,307	1,125	1,069	1,133	1,142

2012 figures account for UMC parent company only.

Quarterly Capacity Utilization Rate
	2Q13	1Q13	4Q12	3Q12	2Q12
Utilization Rate	85%	78%	80%	84%	84%
Total Capacity (8" K equivalents)	1,537	1,461	1,401	1,376	1,372

2012 figures account for UMC parent company only.

1,307 thousand 8-inch equivalent wafers were shipped during 2Q13, a 16.2% increase sequentially, bringing overall utilization rate for the quarter was 85%.

Capacity[5] for Foundry Segment

[5]	Estimated capacity numbers are based on calculated maximum output rather than designed capacity. The actual capacity numbers may differ depending upon equipment delivery schedules, pace of migration to more advanced process technologies, and other factors affecting production ramp-up.

Foundry segment capacity grew from 1,461K 8-inch equivalent wafers in 1Q13 to 1,537K 8-inch equivalent wafers in 2Q13, which included the full quarter recognition of Fab8N capacity and Fab12A expansion. The estimated capacity for the third quarter will be 1,548K 8-inch equivalent wafers due to capacity expansion at Fab12i.

Annual Capacity in *thousands of wafers*							Quarterly Capacity in *thousands of wafers*
FAB		Geometry (um)	2012	2011	2010	2009	FAB	3Q13E	2Q13	1Q13	4Q12
Fab6A	6"	3.5 - 0.45	481	538	588	583	Fab6A	113	113	111	113
Fab8A	8"	0.5 - 0.25	815	813	816	816	Fab8A	204	204	201	204
Fab8C	8"	0.35 - 0.11	360	359	366	405	Fab8C	87	87	86	90
Fab8D	8"	0.13 - 0.09	371	364	314	267	Fab8D	96	96	94	93
Fab8E	8"	0.5 - 0.18	449	469	410	408	Fab8E	105	105	103	113
Fab8F	8"	0.18 - 0.11	389	388	388	381	Fab8F	98	98	96	98
Fab8S	8"	0.18 - 0.11	348	307	304	300	Fab8S	84	84	83	87
Fab12A	12"	0.18 - 0.028	579	501	374	385	Fab8N	128	128	83	-
Fab12i	12"	0.13 - 0.040	537	530	454	362	Fab12A	164	164	158	156
Total ⁽¹⁾			5,514	5,322	4,791	4,586	Fab12i	139	134	132	134
YoY Growth Rate			4%	11%	4%	2%	Total	1,548	1,537	1,461	1,401

2009~2012 figures account for UMC parent company only.							4Q12 figures account for UMC parent company only.

⁽¹⁾ One 6-inch wafer is converted into 0.5625(6 sq./8 sq.) 8-inch equivalent wafer; one 12-inch wafer is converted into 2.25(12 sq./8 sq.) 8-inch equivalent wafers. Capacity total figures are expressed in 8-inch equivalent wafers.

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