Revenue contribution from 28nm declined to 9% while 40nm business represented 25% of sales.

Revenue Breakdown by Customer Type
Customer Type	1Q20		4Q19		3Q19		2Q19		1Q19
Fabless	88	%	87	%	92	%	93	%	94	%
IDM	12	%	13	%	8	%	7	%	6	%

Revenue from fabless customers was 88% of revenue.

Revenue Breakdown by Application (1)
Application	1Q20	4Q19	3Q19	2Q19	1Q19
Computer	13%	13%	13%	14%	15%
Communication	54%	54%	54%	52%	48%
Consumer	24%	24%	26%	28%	29%
Others	9%	9%	7%	6%	8%

Revenue from communication remained flat at 54%, while business from consumer applications and computing peripherals remained unchanged at 24% and 13% respectively.

(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) in 1Q20 declined slightly.

(To view ASP trend, visit http://www.umc.com/english/investors/1Q20_ASP_trend.asp)

Shipment and Utilization Rate³ for Foundry Segment

Wafer Shipments
	1Q20		4Q19		3Q19		2Q19		1Q19
Wafer Shipments (8” K equivalents)	2,148		2,042		1,806		1,730		1,611
Quarterly Capacity Utilization Rate
	1Q20		4Q19		3Q19		2Q19		1Q19
Utilization Rate	93	%	92	%	91	%	88	%	83	%
Total Capacity (8” K equivalents)	2,278		2,237		2,004		1,970		1,937

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