22nm business traction remains robust and well positioned for future growth

Third Quarter 2025 Overview¹:

Revenue: NT$59.13 billion (US$1.94 billion)
Gross margin: 29.8%; Operating margin: 18.8%
Revenue from 22/28nm: 35%
Capacity utilization rate: 78%
Net income attributable to shareholders of the parent: NT$14.98 billion (US$492 million)
Earnings per share: NT$1.20; earnings per ADS: US$0.197

United Microelectronics Corporation (NYSE:UMC, TWSE: 2303)) ("UMC" or "The Company"), a leading global semiconductor foundry, today announced its consolidated operating results for the third quarter of 2025.

Third quarter consolidated revenue was NT$59.13 billion, increasing 0.6% from NT$58.76 billion in 2Q25. Compared to a year ago, 3Q25 revenue decreased 2.2%. Consolidated gross margin for 3Q25 was 29.8%. Net income attributable to the shareholders of the parent was NT$14.98 billion, with earnings per ordinary share of NT$1.20.

Jason Wang, co-president of UMC, said, "In the third quarter, we observed demand growth across most market segments, which drove a 3.4% increase in wafer shipments and improved utilization rate to 78%. In particular, we benefited from a pick-up in sales of smartphones and notebooks, driving replenishment orders from customers. Our 22nm technology platforms continue to provide us with differentiation in the market, with 22nm revenue now accounting for more than 10% of total sales. In 2025 alone, we are projecting over 50 product tape-outs and we expect 22nm contribution to continue increasing in 2026. Aligned with our strategy of providing customers with highly differentiated specialty technologies, we recently announced the readiness of our 55nm BCD platform. In addition to mobile and consumer applications, the new platform is also compliant with the most rigorous automotive standards for automotive and industrial uses."

Co-president Wang added, "Looking ahead to the fourth quarter, we are anticipating wafer shipments to be comparable with third quarter's volume, wrapping up 2025 with shipment growth in the low teens. UMC continues to deliver competitive process technologies that enable diverse applications, which positions the company to benefit from a broad-based market recovery, with 22nm logic and specialty platforms in particular expected to drive growth."

Co-president Wang said, "UMC has been a pioneer in the industry for climate action as the first semiconductor foundry worldwide to pledge net zero greenhouse gas emissions. Demonstrating our commitment, UMC once again led the industry in receiving Science Based Targets initiative (SBTi) validation of our emissions reduction targets under the most stringent climate standard. In addition to executing on reduction programs within our own operations, we are also working closely with partners to address the carbon footprint of our upstream and downstream value chain as we progress towards net zero by 2050."

¹ Unless otherwise stated, all financial figures discussed in this announcement are prepared in accordance with TIFRSs recognized by Financial Supervisory Commission in the ROC, which is different from IFRSs issued by the International Accounting Standards Board. They represent comparisons among the three-month period ending September 30, 2025, the three-month period ending June 30, 2025, and the equivalent three-month period that ended September 30, 2024. For all 3Q25 results, New Taiwan Dollar (NT$) amounts have been converted into U.S. Dollars at the September 30, 2025 exchange rate of NT$ 30.47 per U.S. Dollar.

Summary of Operating Results

Operating Results
(Amount: NT$ million)	3Q25		2Q25		QoQ % change	3Q24		YoY % change
Operating Revenues	59,127		58,758		0.6	60,485		(2.2	)
Gross Profit	17,623		16,878		4.4	20,429		(13.7	)
Operating Expenses	(6,973	)	(6,467	)	7.8	(6,559	)	6.3
Net Other Operating Income and Expenses	467		409		14.3	230		103.6
Operating Income	11,118		10,820		2.8	14,100		(21.1	)
Net Non-Operating Income and Expenses	3,526		(666	)	-	2,464		43.1
Net Income Attributable to Shareholders of the Parent	14,982		8,903		68.3	14,472		3.5
EPS (NT$ per share)	1.20		0.71			1.16
EPS (US$ per ADS)	0.197		0.121			0.183
Exchange rate (USD/NTD)	30.47		29.28			31.65
Note: Sums may not equal totals due to rounding.

Third quarter operating revenues grew 0.6% sequentially to NT$59.13 billion. Revenue contribution from 40nm and below technologies represented 52% of wafer revenue. Gross profit increased 4.4% QoQ to NT$17.62 billion, or 29.8% of revenue. Operating expenses increased 7.8% to NT$6.97 billion. Net other operating income increased 14.3% to NT$0.47 billion. Net non-operating income totaled NT$3.53 billion. Net income attributable to shareholders of the parent amounted to NT$14.98 billion.

Earnings per ordinary share for the quarter was NT$1.20. Earnings per ADS was US$0.197. The basic weighted average number of shares outstanding in 3Q25 was 12,485,162,809, compared with 12,484,877,493 shares in 2Q25 and 12,436,436,695 shares in 3Q24. The diluted weighted average number of shares outstanding was 12,556,345,829 in 3Q25, compared with 12,534,082,055 shares in 2Q25 and 12,559,358,115 shares in 3Q24. The fully diluted shares counted on September 30, 2025 were approximately 12,556,346,000.

Detailed Financials Section

Operating revenues increased to NT$59.13 billion. COGS decreased 0.9% QoQ to NT$41.50 billion. Gross profit increased 4.4% to NT$17.62 billion. Operating expenses grew 7.8% QoQ to NT$6.97 billion, as R&D increased 10.4% to NT$4.63 billion, Sales & Marketing increased 6.2% to NT$0.63 billion, and G&A also increased 1.9% to NT$1.72 billion. Net other operating income was NT$0.47 billion. In 3Q25, operating income increased 2.8% QoQ to NT$11.12 billion.

COGS & Expenses
(Amount: NT$ million)	3Q25		2Q25		QoQ % change		3Q24		YoY % change
Operating Revenues	59,127		58,758		0.6		60,485		(2.2	)
COGS	(41,504	)	(41,880	)	(0.9	)	(40,056	)	3.6
Depreciation	(12,635	)	(12,317	)	2.6		(10,449	)	20.9
Other Mfg. Costs	(28,869	)	(29,563	)	(2.3	)	(29,607	)	(2.5	)
Gross Profit	17,623		16,878		4.4		20,429		(13.7	)
Gross Margin (%)	29.8%		28.7%				33.8%
Operating Expenses	(6,973	)	(6,467	)	7.8		(6,559	)	6.3
Sales & Marketing	(628	)	(591	)	6.2		(717	)	(12.3	)
G&A	(1,715	)	(1,682	)	1.9		(1,820	)	(5.8	)
R&D	(4,631	)	(4,194	)	10.4		(4,022	)	15.1
Expected Credit Impairment Gain (Loss)	0		(0	)	-		(0	)	-
Net Other Operating Income & Expenses	467		409		14.3		230		103.6
Operating Income	11,118		10,820		2.8		14,100		(21.1	)
Note: Sums may not equal totals due to rounding.

Net non-operating income in 3Q25 was NT$3.53 billion, primarily reflecting the NT$3.19 billion in net investment gain and the NT$0.25 billion in exchange gain.

Non-Operating Income and Expenses
(Amount: NT$ million)	3Q25		2Q25		3Q24
Non-Operating Income and Expenses	3,526		(666	)	2,464
Net Interest Income and Expenses	88		309		324
Net Investment Gain and Loss	3,192		326		2,791
Exchange Gain and Loss	250		(1,280	)	(652	)
Other Gain and Loss	(3	)	(20	)	1
Note: Sums may not equal totals due to rounding.

In 3Q25, cash inflow from operating activities was NT$20.94 billion. Cash outflow from investing activities totaled NT$16.15 billion, including NT$12.01 billion in capital expenditures, resulting in free cash flow of NT$8.93 billion. Cash outflow from financing activities was NT$15.16 billion, primarily due to the NT$35.79 billion in dividend distribution, offset by the NT$15.87 billion increase in bank loans and NT$5.00 billion in bonds issued. Net cash outflow in 3Q25 amounted to NT$7.78 billion. Over the next 12 months, the company expects to repay NT$24.05 billion in bank loans.

Cash Flow Summary
(Amount: NT$ million)	For the 3-Month Period Ended Sep. 30, 2025		For the 3-Month Period Ended Jun. 30, 2025
Cash Flow from Operating Activities	20,938		22,098
Net income before tax	14,644		10,154
Depreciation & Amortization	14,995		14,506
Share of profit of associates and joint ventures	(1,250	)	(446	)
Income tax paid	(3,341	)	(2,135	)
Changes in working capital & others	(4,110	)	19
Cash Flow from Investing Activities	(16,152	)	(9,438	)
Increase in financial assets measured at amortized cost	(4,043	)	(1,397	)
Acquisition of PP&E	(11,223	)	(7,543	)
Acquisition of intangible assets	(948	)	(1,045	)
Others	62		547
Cash Flow from Financing Activities	(15,160	)	1,149
Bank loans	15,874		(3,767	)
Bonds issued	5,000		5,200
Cash dividends	(35,788	)	-
Others	(246	)	(284	)
Effect of Exchange Rate	2,597		(8,169	)
Net Cash Flow	(7,777	)	5,640
Beginning balance	111,994		106,354
Ending balance	104,217		111,994
Note: Sums may not equal totals due to rounding.

Cash and cash equivalents decreased to NT$104.22 billion. Days of inventory was 76 days.

Current Assets
(Amount: NT$ billion)	3Q25	2Q25	3Q24
Cash and Cash Equivalents	104.22	111.99	103.41
Accounts Receivable	32.25	32.38	33.74
Days Sales Outstanding	50	52	50
Inventories, net	35.18	34.02	38.09
Days of Inventory	76	76	85
Total Current Assets	192.85	195.18	193.61

Current liabilities decreased to NT$82.28 billion. Long-term credit / bonds increased to NT$53.76 billion. Total liabilities decreased to NT$194.20 billion, leading to a debt to equity ratio of 54%.

Liabilities
(Amount: NT$ billion)	3Q25	2Q25	3Q24
Total Current Liabilities	82.28	110.39	88.27
Accounts Payable	8.04	8.54	9.01
Short-Term Credit / Bonds	30.15	21.30	30.86
Payables on Equipment	11.57	8.35	14.89
Dividends Payable	-	35.79	-
Other	32.52	36.41	33.51
Long-Term Credit / Bonds	53.76	41.60	58.13
Total Liabilities	194.20	211.10	205.80
Debt to Equity	54%	63%	56%

Analysis of Revenue²

Revenue from Asia Pacific decreased to 63%, while business from North America increased to 25% of sales. Business from Europe remained unchanged at 8%, while contribution from Japan was 4%.

Revenue Breakdown by Region
Region	3Q25	2Q25	1Q25	4Q24	3Q24
North America	25%	20%	22%	25%	26%
Asia Pacific	63%	67%	66%	61%	65%
Europe	8%	8%	7%	11%	5%
Japan	4%	5%	5%	3%	4%

Revenue contribution from 22/28nm was 35% of wafer revenue, while 40nm contribution increased to 17% of sales.

Revenue Breakdown by Geometry
Geometry	3Q25	2Q25	1Q25	4Q24	3Q24
14nm and below	0%	0%	0%	0%	0%
14nm<x<=28nm	35%	40%	37%	34%	35%
28nm<x<=40nm	17%	15%	16%	16%	13%
40nm<x<=65nm	18%	17%	16%	16%	15%
65nm<x<=90nm	8%	7%	8%	11%	10%
90nm<x<=0.13um	8%	7%	7%	10%	10%
0.13um<x<=0.18um	9%	9%	10%	9%	11%
0.18um<x<=0.35um	4%	4%	5%	4%	5%
0.5um and above	1%	1%	1%	0%	1%

Revenue from fabless customers accounted for 81% of revenue.

Revenue Breakdown by Customer Type
Customer Type	3Q25	2Q25	1Q25	4Q24	3Q24
Fabless	81%	81%	82%	84%	85%
IDM	19%	19%	18%	16%	15%

Revenue from the communication segment accounted for 42%, while business from computer applications was 12% of sales. Business from consumer applications accounted for 29%, while other segments was 17% of revenue.

Revenue Breakdown by Application ⁽¹⁾
Application	3Q25	2Q25	1Q25	4Q24	3Q24
Computer	12%	11%	11%	13%	13%
Communication	42%	41%	40%	39%	42%
Consumer	29%	33%	34%	29%	31%
Others	17%	15%	15%	19%	14%

⁽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, WLAN. Communication consists of handset components, broadband, 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.

² Revenue in this section represents wafer sales.

Blended ASP Trend

(To view blended ASP trend, please click here for 3Q25 ASP)

Shipment and Utilization Rate³

Wafer shipments increased 3.4% QoQ to 1,000K during the third quarter, while quarterly capacity was 1,305K. Overall utilization rate in 3Q25 grew to 78%.

Wafer Shipments
	3Q25	2Q25	1Q25	4Q24	3Q24
Wafer Shipments (12" K equivalents)	1,000	967	910	909	896

Quarterly Capacity Utilization Rate
	3Q25	2Q25	1Q25	4Q24	3Q24
Utilization Rate	78%	76%	69%	70%	71%
Total Capacity (12" K equivalents)	1,305	1,290	1,264	1,280	1,274

³ Utilization Rate = Quarterly Wafer Out / Quarterly Capacity

Capacity⁴

Total capacity in the third quarter increased to 1,305K 12-inch equivalent wafers. Capacity will remain unchanged at 1,305K 12-inch equivalent wafers in the fourth quarter of 2025.

Annual Capacity in *thousands of wafers*							Quarterly Capacity in *thousands of wafers*
FAB		Geometry (um)	2024	2023	2022	2021	FAB		4Q25E	3Q25	2Q25	1Q25
WTK	6"	5 – 0.15	331	328	335	329	WTK	6"	80	80	80	78
8A	8"	3 – 0.11	829	811	765	755	8A	8"	215	215	215	212
8C	8"	0.35 – 0.11	477	473	459	459	8C	8"	125	125	125	123
8D	8"	0.18 – 0.09	473	440	410	380	8D	8"	118	118	118	116
8E	8"	0.6 – 0.14	524	490	469	457	8E	8"	131	131	131	129
8F	8"	0.18 – 0.11	578	570	550	514	8F	8"	146	146	146	144
8S	8"	0.18 – 0.11	455	447	443	408	8S	8"	117	117	117	115
8N	8"	0.5 – 0.11	1,013	996	952	917	8N	8"	250	250	250	246
12A	12"	0.13 – 0.014	1,556	1,305	1,170	1,070	12A	12"	409	409	409	402
12i	12"	0.13 – 0.040	678	655	655	641	12i	12"	172	172	172	169
12X	12"	0.080 – 0.022	318	317	314	284	12X	12"	95	95	80	78
12M	12"	0.13 – 0.040	455	438	436	395	12M	12"	119	119	119	113
Total⁽¹⁾			5,022	4,674	4,458	4,201	Total		1,305	1,305	1,290	1,264
YoY Growth Rate			7%	5%	6%	3%
⁽¹⁾One 6-inch wafer is converted into 0.25 (6²/12²) 12-inch equivalent wafer; one 8-inch wafer is converted into 0.44 (8²/12²) 12-inch equivalent wafers. Total capacity figures are expressed in 12-inch equivalent wafers.

CAPEX

CAPEX spending in 3Q25 totaled US$399 million. 2025 cash-based CAPEX budget will be US$1.8 billion.

Capital Expenditure by Year - in US$ billion
Year	2024	2023	2022	2021	2020
CAPEX	$ 2.9	$ 3.0	$ 2.7	$ 1.8	$ 1.0

2025 CAPEX Plan
8"	12"	Total
10%	90%	US$1.8 billion

⁴ 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.

Fourth Quarter 2025 Outlook & Guidance

Quarter-over-Quarter Guidance:

Wafer Shipments: Will remain flat
ASP in USD: Will remain firm
Gross Profit Margin: Will be approximately in the high-20% range
Capacity Utilization: mid-70% range
2025 CAPEX: US$1.8 billion

Recent Developments / Announcements

Aug. 8, 2025		UMC's 1.5°C Net-Zero targets validated by Science Based Targets initiative (SBTi)
Aug. 11, 2025		UMC Wins HR Asia 2025 Best Companies to Work for in Asia Award
Oct. 22, 2025		UMC Introduces 55nm BCD Platform to Elevate Power Efficiency for Smartphones, Consumer Electronics, and Automotive Applications

	Please visit UMC's website for further details regarding the above announcements

Conference Call / Webcast Announcement

Wednesday, October 29, 2025

Time: 5:00 PM (Taipei) / 5:00 AM (New York) / 09:00 AM (London)

Dial-in numbers and Access Codes:
Taiwan Number:				02 3396 1191
Taiwan Toll Free:				0080 119 6666
US Toll Free:				+1 866 212 5567
Other Areas:				+886 2 3396 1191

Access Code:				3308029#

A live webcast and replay of the 3Q25 results announcement will be available at

www.umc.com under the "Investors / Events" section.

About UMC

UMC (NYSE:UMC, TWSE: 2303)) is a leading global semiconductor foundry company. The company provides high-quality IC fabrication services, focusing on logic and various specialty technologies to serve all major sectors of the electronics industry. UMC's comprehensive IC processing technologies and manufacturing solutions include Logic/Mixed-Signal, embedded High-Voltage, embedded Non-Volatile-Memory, RFSOI, BCD etc. Most of UMC's 12-in and 8-in fabs with its core R&D are in Taiwan, with additional ones throughout Asia. UMC has a total of 12 fabs in production with a combined capacity of more than 400,000 wafers per month (12-in equivalent), and all of them are certified with IATF 16949 automotive quality standards. UMC is headquartered in Hsinchu, Taiwan, plus local offices in the United States, Europe, China, Japan, Korea, and Singapore, with a worldwide total of 20,000 employees. For more information, please visit: http://www.umc.com.

Safe Harbor Statements

This press release contains forward-looking statements within the meaning of Section 27A of the United States Securities Act of 1933, as amended, and Section 21E of the United States Securities Exchange Act of 1934, as amended, and as defined in the United States Private Securities Litigation Reform Act of 1995. These forward-looking statements include, but are not limited to, statements regarding anticipated financial results for the third quarter of 2025; the expected wafer shipment and ASP; the anticipated annual budget; capex strategies; environmental protection goals and water management strategies; impact of foreign currency exchange rates; expected foundry capacities; the ability to obtain new business opportunities; and information under the heading "Fourth Quarter 2025 Outlook and Guidance."

These forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause the actual performance, financial condition or results of operations of UMC to be materially different from what is stated or may be implied in such forward-looking statements. Investors are cautioned that actual events and results could differ materially from those statements as a result of a number of factors including, but not limited to: (i) dependence upon the frequent introduction of new services and technologies based on the latest developments in the industry in which UMC operates; (ii) the intensely competitive semiconductor, communications, consumer electronics and computer industries and markets; (iii) the risks associated with international business activities; (iv) dependence upon key personnel; (v) general economic and political conditions; (vi) possible disruptions in commercial activities caused by natural and human-induced events and disasters, including natural disasters, terrorist activity, armed conflict and highly contagious diseases; (vii) reduced end-user purchases relative to expectations and orders; and (viii) fluctuations in foreign currency exchange rates. Further information regarding these and other risk factors is included in UMC's filings with the United States Securities and Exchange Commission, including its Annual Report on Form 20-F. All information provided in this release is as of the date of this release and are based on assumptions that UMC believes to be reasonable as of this date, and UMC does not undertake any obligation to update any forward-looking statement as a result of new information, future events or otherwise, except as required under applicable law.

The financial statements included in this release are prepared and published in accordance with Taiwan International Financial Reporting Standards, or TIFRSs, recognized by the Financial Supervisory Commission in the ROC, which is different from International Financial Reporting Standards, or IFRSs, issued by the International Accounting Standards Board. Investors are cautioned that there may be significant differences between TIFRSs and IFRSs. In addition, TIFRSs and IFRSs differ in certain significant respects from generally accepted accounting principles in the ROC and generally accepted accounting principles in the United States.

- FINANCIAL TABLES TO FOLLOW -

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES
Consolidated Condensed Balance Sheet
As of September 30, 2025
Figures in Millions of New Taiwan Dollars (NT$) and U.S. Dollars (US$)


		September 30, 2025
		US$	NT$	%
	Assets
	Current assets
	Cash and cash equivalents	3,420	104,217	18.8%
	Accounts receivable, net	1,058	32,245	5.8%
	Inventories, net	1,155	35,181	6.3%
	Other current assets	696	21,211	3.8%
	Total current assets	6,329	192,854	34.7%

	Non-current assets
	Funds and investments	2,372	72,264	13.0%
	Property, plant and equipment	8,707	265,291	47.8%
	Right-of-use assets	246	7,494	1.4%
	Other non-current assets	574	17,493	3.2%
	Total non-current assets	11,898	362,542	65.3%
	Total assets	18,228	555,395	100.0%

	Liabilities
	Current liabilities
	Short-term loans	527	16,060	2.9%
	Payables	1,352	41,205	7.4%
	Current portion of long-term liabilities	462	14,086	2.5%
	Other current liabilities	359	10,925	2.0%
	Total current liabilities	2,700	82,276	14.8%

	Non-current liabilities
	Bonds payable	961	29,278	5.3%
	Long-term loans	803	24,479	4.4%
	Lease liabilities, noncurrent	179	5,449	1.0%
	Other non-current liabilities	1,730	52,712	9.5%
	Total non-current liabilities	3,673	111,919	20.2%
	Total liabilities	6,373	194,195	35.0%

	Equity
	Equity attributable to the parent company
	Capital	4,121	125,563	22.6%
	Additional paid-in capital	492	14,992	2.7%
	Retained earnings and other components of equity	7,237	220,505	39.7%
	Total equity attributable to the parent company	11,850	361,060	65.0%
	Non-controlling interests	5	140	0.0%
	Total equity	11,854	361,200	65.0%
	Total liabilities and equity	18,228	555,395	100.0%

	Notes:
	(1) New Taiwan Dollars have been translated into U.S. Dollars at the September 30, 2025 exchange rate of NT $30.47 per U.S. Dollar.
	(2) Sums may not equal totals due to rounding.

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES
Consolidated Condensed Statements of Comprehensive Income
Figures in Millions of New Taiwan Dollars (NT$) and U.S. Dollars (US$)
Except Per Share and Per ADS Data


	Year over Year Comparison								Quarter over Quarter Comparison
	Three-Month Period Ended								Three-Month Period Ended
	September 30, 2025				September 30, 2024		Chg.		September 30, 2025				June 30, 2025		Chg.
	US$		NT$		NT$		%		US$		NT$		NT$		%
Operating revenues	1,940		59,127		60,485		(2.2	%)	1,940		59,127		58,758		0.6	%
Operating costs	(1,362	)	(41,504	)	(40,056	)	3.6	%	(1,362	)	(41,504	)	(41,880	)	(0.9	%)
Gross profit	578		17,623		20,429		(13.7	%)	578		17,623		16,878		4.4	%
	29.8	%	29.8	%	33.8	%			29.8	%	29.8	%	28.7	%
Operating expenses
- Sales and marketing expenses	(21	)	(628	)	(717	)	(12.3	%)	(21	)	(628	)	(591	)	6.2	%
- General and administrative expenses	(56	)	(1,715	)	(1,820	)	(5.8	%)	(56	)	(1,715	)	(1,682	)	1.9	%
- Research and development expenses	(152	)	(4,631	)	(4,022	)	15.1	%	(152	)	(4,631	)	(4,194	)	10.4	%
- Expected credit impairment gain (loss)	0		0		(0	)	-		0		0		(0	)	-
Subtotal	(229	)	(6,973	)	(6,559	)	6.3	%	(229	)	(6,973	)	(6,467	)	7.8	%
Net other operating income and expenses	15		467		230		103.6	%	15		467		409		14.3	%
Operating income	365		11,118		14,100		(21.1	%)	365		11,118		10,820		2.8	%
	18.8	%	18.8	%	23.3	%			18.8	%	18.8	%	18.4	%

Net non-operating income and expenses	116		3,526		2,464		43.1	%	116		3,526		(666	)	-
Income from continuing operations before income tax	481		14,644		16,564		(11.6	%)	481		14,644		10,154		44.2	%
	24.8	%	24.8	%	27.4	%			24.8	%	24.8	%	17.3	%

Income tax benefit (expense)	10		300		(2,122	)	-		10		300		(1,306	)	-
Net income	490		14,944		14,442		3.5	%	490		14,944		8,848		68.9	%
	25.3	%	25.3	%	23.9	%			25.3	%	25.3	%	15.1	%

Other comprehensive income (loss)	296		9,005		(2,299	)	-		296		9,005		(27,075	)	-

Total comprehensive income (loss)	786		23,949		12,143		97.2	%	786		23,949		(18,227	)	-

Net income attributable to:
Shareholders of the parent	492		14,982		14,472		3.5	%	492		14,982		8,903		68.3	%
Non-controlling interests	(1	)	(38	)	(30	)	25.0	%	(1	)	(38	)	(55	)	(30.6	%)

Comprehensive income (loss) attributable to:
Shareholders of the parent	787		23,987		12,173		97.0	%	787		23,987		(18,172	)	-
Non-controlling interests	(1	)	(38	)	(30	)	24.7	%	(1	)	(38	)	(55	)	(31.1	%)

Earnings per share-basic	0.039		1.20		1.16				0.039		1.20		0.71
Earnings per ADS ⁽²⁾	0.197		6.00		5.80				0.197		6.00		3.55
Weighted average number of shares outstanding (in millions)			12,485		12,436						12,485		12,485

Notes:
(1) New Taiwan Dollars have been translated into U.S. Dollars at the September 30, 2025 exchange rate of NT $30.47 per U.S. Dollar.
(2) 1 ADS equals 5 common shares.
(3) Sums may not equal totals due to rounding.

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES
Consolidated Condensed Statements of Comprehensive Income
Figures in Millions of New Taiwan Dollars (NT$) and U.S. Dollars (US$)
Except Per Share and Per ADS Data

	For the Three-Month Period Ended						For the Nine-Month Period Ended
	September 30, 2025						September 30, 2025
	US$		NT$		%		US$		NT$		%
Operating revenues	1,940		59,127		100.0	%	5,768		175,744		100.0	%
Operating costs	(1,362	)	(41,504	)	(70.2	%)	(4,129	)	(125,796	)	(71.6	%)
Gross profit	578		17,623		29.8	%	1,639		49,948		28.4	%


Operating expenses
- Sales and marketing expenses	(21	)	(628	)	(1.1	%)	(60	)	(1,838	)	(1.1	%)
- General and administrative expenses	(56	)	(1,715	)	(2.9	%)	(162	)	(4,939	)	(2.8	%)
- Research and development expenses	(152	)	(4,631	)	(7.8	%)	(420	)	(12,788	)	(7.3	%)
- Expected credit impairment gain	0		0		0.0	%	0		2		0.0	%
Subtotal	(229	)	(6,973	)	(11.8	%)	(642	)	(19,563	)	(11.1	%)
Net other operating income and expenses	15		467		0.8	%	44		1,339		0.8	%
Operating income	365		11,118		18.8	%	1,041		31,723		18.0	%

Net non-operating income and expenses	116		3,526		6.0	%	79		2,421		1.4	%
Income from continuing operations before income tax	481		14,644		24.8	%	1,121		34,144		19.4	%


Income tax benefit (expense)	10		300		0.5	%	(86	)	(2,609	)	(1.5	%)
Net income	490		14,944		25.3	%	1,035		31,535		17.9	%

Other comprehensive income (loss)	296		9,005		15.2	%	(446	)	(13,581	)	(7.7	%)

Total comprehensive income (loss)	786		23,949		40.5	%	589		17,955		10.2	%

Net income attributable to:
Shareholders of the parent	492		14,982		25.3	%	1,039		31,661		18.0	%
Non-controlling interests	(1	)	(38	)	(0.1	%)	(4	)	(126	)	(0.1	%)

Comprehensive income (loss) attributable to:
Shareholders of the parent	787		23,987		40.6	%	593		18,081		10.3	%
Non-controlling interests	(1	)	(38	)	(0.1	%)	(4	)	(126	)	(0.1	%)

Earnings per share-basic	0.039		1.20				0.083		2.54
Earnings per ADS ⁽²⁾	0.197		6.00				0.417		12.70

Weighted average number of shares outstanding (in millions)			12,485						12,485

Notes:
(1) New Taiwan Dollars have been translated into U.S. Dollars at the September 30, 2025 exchange rate of NT $30.47 per U.S. Dollar.
(2) 1 ADS equals 5 common shares.
(3) Sums may not equal totals due to rounding.

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES
Consolidated Condensed Statement of Cash Flows
For The Nine-Month Period Ended September 30, 2025
Figures in Millions of New Taiwan Dollars (NT$) and U.S. Dollars (US$)

	US$		NT$
Cash flows from operating activities :
Net income before tax	1,121		34,144
Depreciation & Amortization	1,432		43,629
Share of profit of associates and joint ventures	(49	)	(1,489	)
Income tax paid	(199	)	(6,060	)
Changes in working capital & others	(110	)	(3,364	)
Net cash provided by operating activities	2,194		66,861

Cash flows from investing activities :
Increase in financial assets measured at amortized cost	(170	)	(5,189	)
Acquisition of property, plant and equipment	(1,080	)	(32,919	)
Acquisition of intangible assets	(76	)	(2,321	)
Others	142		4,333
Net cash used in investing activities	(1,185	)	(36,095	)

Cash flows from financing activities :
Increase in short-term loans	246		7,507
Proceeds from bonds issued	335		10,200
Proceeds from long-term loans	701		21,359
Repayments of long-term loans	(977	)	(29,777	)
Cash dividends	(1,175	)	(35,788	)
Others	(42	)	(1,289	)
Net cash used in financing activities	(912	)	(27,788	)

Effect of exchange rate changes on cash and cash equivalents	(123	)	(3,761	)
Net decrease in cash and cash equivalents	(26	)	(783	)

Cash and cash equivalents at beginning of period	3,446		105,000

Cash and cash equivalents at end of period	3,420		104,217


Notes:
(1) New Taiwan Dollars have been translated into U.S. Dollars at the September 30, 2025 exchange rate of NT $30.47 per U.S. Dollar.
(2) Sums may not equal totals due to rounding.

View source version on businesswire.com: https://www.businesswire.com/news/home/20251029076646/en/

Michael Lin / David Wong

UMC, Investor Relations

+ 886-2-2658-9168, ext. 16900

jinhong_lin@umc.com

david_wong@umc.com

UMC Reports Third Quarter 2025 Results