UMC Reports Fourth Quarter 2015 Results

28nm revenue represented 11% of 4Q15 sales, while 40nm revenue accounted for 24%. 65nm contribution increased to 23%, up from 21% in 3Q15.

Revenue Breakdown by Customer Type
Customer Type	4Q15	3Q15	2Q15	1Q15	4Q14
Fabless	85%	88%	89%	90%	90%
IDM	15%	12%	11%	10%	10%

4Q15 revenue from IDM customers increased to 15% of sales.

Revenue Breakdown by Application ⁽¹⁾
Application	4Q15	3Q15	2Q15	1Q15	4Q14
Computer	11%	11%	12%	13%	14%
Communication	52%	55%	55%	56%	54%
Consumer	29%	27%	28%	26%	28%
Others	8%	7%	5%	5%	4%

Revenue from communication segment declined to 52% of 4Q15 sales, partly due to a softer demand in the handset supply chain.

(1) Computer consists of ICs such as CPU, GPU, HDD controllers, DVD/CD-RW control ICs, PC chipset, audio codec, keyboard controller, monitor scaler, USB, I/O chipset. Communication consists of handset components, broadband, WLAN, bluetooth, Ethernet, LAN, DSP, etc. Consumer consists of ICs used for DVD players, DTV, STB, MP3/MP4, flash controller, game consoles, DSC, smart cards, toys, etc.

Blended ASP Trend for Foundry Segment

Blended average selling price (ASP) slightly decreased in 4Q15.

(To view ASP trend, visit http://www.umc.com/english/investors/4Q15_ASP_trend.asp)

Shipment and Utilization Rate[3] for Foundry Segment

Wafer Shipments
	4Q15	3Q15	2Q15	1Q15	4Q14
Wafer Shipments (8" K equivalents)	1,384	1,467	1,536	1,481	1,431

Quarterly Capacity Utilization Rate
	4Q15	3Q15	2Q15	1Q15	4Q14
Utilization Rate	83%	89%	94%	93%	93%
Total Capacity (8" K equivalents)	1,690	1,685	1,659	1,583	1,577

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