Business traction on 22nm continues to gain momentum, accounting for 14% of Q1 revenue

Expect Q2 wafer shipments to grow by high single digit

First Quarter 2026 Overview¹:

Revenue: NT$61.04 billion (US$1.93 billion)
Gross margin: 29.2%; Operating margin: 18.5%
Revenue from 22/28nm: 34%
Capacity utilization rate: 79%
Net income attributable to shareholders of the parent: NT$16.17 billion (US$511 million)
Earnings per share: NT$1.29; earnings per ADS: US$0.204

United Microelectronics Corporation (NYSE:UMC, TWSE: 2303)) ("UMC" or "The Company"), a leading global semiconductor foundry, today announced its consolidated operating results for the first quarter of 2026.

First quarter consolidated revenue was NT$61.04 billion, decreasing 1.2% from NT$61.81 billion in 4Q25. Compared to a year ago, 1Q26 revenue increased 5.5%. Consolidated gross margin for 1Q26 was 29.2%. Net income attributable to the shareholders of the parent was NT$16.17 billion, with earnings per ordinary share of NT$1.29.

Jason Wang, CEO of UMC, said, "In the first quarter, our wafer shipments increased 2.7% quarter-on-quarter on strong growth in the consumer segment, lifting overall utilization rate to 79%. Despite a decline in blended average selling price during the quarter, which partly reflected higher 8-inch wafer shipments, gross margin held firm at 29.2%. Demand for our 22nm logic and specialty processes continues to gain momentum, with 22nm revenue reaching another record high and accounting for 14% of first-quarter revenue. By the end of this year, over 50 customers will have completed tape-outs on our 22nm platforms for a diverse range of applications, including display driver ICs, networking chips, and microcontrollers. We continue to invest in next-generation technologies – beyond 22nm, our 12nm collaboration with Intel will provide customers with technology continuity as well as a U.S.-based manufacturing option. UMC also recently announced important developments in emerging businesses, including a strategic partnership to deploy thin-film lithium niobate (TFLN) photonics for AI infrastructure."

CEO Wang added, "Going into the second quarter, we expect strong wafer shipment growth across both 8-inch and 12-inch portfolios, supported by a strong rebound in the communication segment as well as healthy demand across computer, consumer, and industrial markets. While the current memory supply shortage and the ongoing conflict in the Middle East are creating certain headwinds and market volatility, UMC continues to foresee resilient market demand. UMC will continue to monitor industry and macroeconomic developments closely while prudently managing our business to cope with market dynamics amid evolving semiconductor landscape changes."

CEO Wang said, "UMC's long-term commitment to corporate sustainability was once again recognized in S&P Global's annual Sustainability Yearbook. With only 848 out of 9,200 large corporations selected for the 2026 Yearbook, UMC was awarded the ‘Top 1%' highest ranking within the Semiconductor and Semiconductor Equipment sector. Last month, we also announced a MoU with Infineon to drive reduction of greenhouse gas emissions across our shared supply chain. With value chain (Scope 3) emissions the largest share of a company's total emissions, and also the most complex to address, collaboration with our partners is essential as we strive towards our goal of achieving net zero emissions by 2050. We are pleased to join forces with Infineon to accelerate decarbonization action among our common suppliers."

Summary of Operating Results

Operating Results
(Amount: NT$ million)	1Q26		4Q25		QoQ % change		1Q25		YoY % change
Operating Revenues	61,038		61,810		(1.2	)	57,859		5.5
Gross Profit	17,818		18,958		(6.0	)	15,447		15.4
Operating Expenses	(7,099	)	(7,384	)	(3.9	)	(6,123	)	15.9
Net Other Operating Income and Expenses	557		651		(14.5	)	462		20.4
Operating Income	11,276		12,225		(7.8	)	9,786		15.2
Net Non-Operating Income and Expenses	5,367		3,278		63.8		(439	)	-
Net Income Attributable to Shareholders of the Parent	16,171		10,055		60.8		7,777		107.9
EPS (NT$ per share)	1.29		0.81				0.62
(US$ per ADS)	0.204		0.129				0.093
Exchange rate (USD/NTD)	31.63		31.40				33.18
Note：Sums may not equal totals due to rounding.

First quarter operating revenues declined 1.2% sequentially to NT$61.04 billion. Revenue contribution from 40nm and below technologies represented 52% of wafer revenue. Gross profit declined 6.0% QoQ to NT$17.82 billion, or 29.2% of revenue. Operating expenses decreased 3.9% to NT$7.10 billion. Net other operating income decreased 14.5% to NT$0.56 billion. Net non-operating income totaled NT$5.37 billion. Net income attributable to shareholders of the parent amounted to NT$16.17 billion.

Earnings per ordinary share for the quarter was NT$1.29. Earnings per ADS was US$0.204. The basic weighted average number of shares outstanding in 1Q26 was 12,491,206,358, compared with 12,487,002,150 shares in 4Q25 and 12,484,780,989 shares in 1Q25. The diluted weighted average number of shares outstanding was 12,583,475,228 in 1Q26, compared with 12,594,788,681 shares in 4Q25 and 12,579,207,466 shares in 1Q25. The fully diluted shares counted on March 31, 2026 were approximately 12,583,475,000.

Detailed Financials Section

Operating revenues decreased to NT$61.04 billion. COGS increased 0.9% QoQ to NT$43.22 billion. Gross profit decreased 6.0% QoQ to NT$17.82 billion. Operating expenses decreased 3.9% QoQ to NT$7.10 billion, as R&D decreased 7.3% to NT$4.58 billion and G&A decreased 1.0% to NT$1.83 billion, while Sales & Marketing increased 15.8% to NT$0.69 billion. Net other operating income was NT$0.56 billion. In 1Q26, operating income decreased 7.8% QoQ to NT$11.28 billion.

COGS & Expenses
(Amount: NT$ million)	1Q26		4Q25		QoQ % change		1Q25		YoY % change
Operating Revenues	61,038		61,810		(1.2	)	57,859		5.5
COGS	(43,219	)	(42,851	)	0.9		(42,412	)	1.9
Depreciation	(13,719	)	(12,991	)	5.6		(12,321	)	11.3
Other Mfg. Costs	(29,500	)	(29,860	)	(1.2	)	(30,091	)	(2.0	)
Gross Profit	17,818		18,958		(6.0	)	15,447		15.4
Gross Margin (%)	29.2	%	30.7	%			26.7	%
Operating Expenses	(7,099	)	(7,384	)	(3.9	)	(6,123	)	15.9
Sales & Marketing	(689	)	(595	)	15.8		(619	)	11.3
G&A	(1,834	)	(1,853	)	(1.0	)	(1,542	)	18.9
R&D	(4,575	)	(4,937	)	(7.3	)	(3,964	)	15.4
Expected Credit Impairment Gain	0		0		2,150.0		2		(98.1	)
Net Other Operating Income & Expenses	557		651		(14.5	)	462		20.4
Operating Income	11,276		12,225		(7.8	)	9,786		15.2
Note：Sums may not equal totals due to rounding.

Net non-operating income in 1Q26 was NT$5.37 billion, primarily reflecting the NT$5.00 billion in net investment gain and the NT$0.30 billion in exchange gain.

Non-Operating Income and Expenses
(Amount: NT$ million)	1Q26		4Q25	1Q25
Non-Operating Income and Expenses	5,367		3,278	(439	)
Net Interest Income and Expenses	88		134	219
Net Investment Gain and Loss	4,997		2,812	(769	)
Exchange Gain and Loss	303		332	115
Other Gain and Loss	(20	)	0	(5	)
Note：Sums may not equal totals due to rounding.

In 1Q26, cash inflow from operating activities was NT$21.98 billion. Cash outflow from investing activities totaled NT$21.35 billion, including NT$13.16 billion in capital expenditures, resulting in free cash flow of NT$8.83 billion. Cash outflow from financing activities was NT$3.69 billion, primarily due to NT$3.04 billion in bank loans. Net cash outflow in 1Q26 amounted to NT$1.64 billion. Over the next 12 months, the company expects to repay NT$6.68 billion in bank loans.

Cash Flow Summary
(Amount: NT$ million)	For the 3-Month Period Ended Mar. 31, 2026		For the 3-Month Period Ended Dec. 31, 2025
Cash Flow from Operating Activities	21,981		33,003
Net income before tax	16,644		15,503
Depreciation & Amortization	15,987		15,630
Share of profit of associates and joint ventures	(2,815	)	(929	)
Income tax paid	(464	)	(301	)
Changes in working capital & others	(7,370	)	3,100
Cash Flow from Investing Activities	(21,348	)	(17,059	)
Increase in financial assets measured at amortized cost	(7,101	)	(3,074	)
Acquisition of PP&E	(12,526	)	(14,826	)
Acquisition of investments accounted for under the equity method	(643	)	-
Acquisition of intangible assets	(681	)	(667	)
Others	(397	)	1,508
Cash Flow from Financing Activities	(3,686	)	(11,416	)
Bank loans	(3,039	)	(20,885	)
Bonds issued	-		9,800
Others	(647	)	(331	)
Effect of Exchange Rate	1,411		1,915
Net Cash Flow	(1,641	)	6,443
Beginning balance	110,660		104,217
Ending balance	109,019		110,660
Note：Sums may not equal totals due to rounding.

Cash and cash equivalents decreased to NT$109.02 billion. Days sales outstanding increased 3 days to 50 days, while days of inventory increased 3 day to 80 days.

Current Assets
(Amount: NT$ billion)	1Q26	4Q25	1Q25
Cash and Cash Equivalents	109.02	110.66	106.35
Accounts Receivable	35.60	31.27	34.80
Days Sales Outstanding	50	47	54
Inventories, net	38.65	37.23	35.43
Days of Inventory	80	77	77
Total Current Assets	216.44	204.78	192.32

Current liabilities decreased to NT$79.61 billion. Long-term credit / bonds increased to NT$47.17 billion. Total liabilities decreased to NT$193.20 billion, while debt to equity ratio decreased to 47%.

Liabilities
(Amount: NT$ billion)	1Q26	4Q25	1Q25
Total Current Liabilities	79.61	87.60	72.87
Accounts Payable	9.07	9.17	9.27
Short-Term Credit / Bonds	22.89	27.60	17.63
Payables on Equipment	7.98	11.68	8.46
Other	39.67	39.15	37.51
Long-Term Credit / Bonds	47.17	45.37	44.63
Total Liabilities	193.20	199.14	182.13
Debt to Equity	47%	52%	47%

Analysis of Revenue²

Revenue from Asia Pacific increased to 65%, while business from North America remained at 21% of sales. Business from Europe decreased to 9%, while contribution from Japan increased to 5%.

Revenue Breakdown by Region
Region	1Q26	4Q25	3Q25	2Q25	1Q25
North America	21%	21%	25%	20%	22%
Asia Pacific	65%	64%	63%	67%	66%
Europe	9%	11%	8%	8%	7%
Japan	5%	4%	4%	5%	5%

Revenue contribution from 22/28nm decreased to 34% of wafer revenue, while 40nm contribution increased to 18% of sales.

Revenue Breakdown by Geometry
Geometry	1Q26	4Q25	3Q25	2Q25	1Q25
14nm and below	0%	0%	0%	0%	0%
14nm<x<=28nm	34%	36%	35%	40%	37%
28nm<x<=40nm	18%	17%	17%	15%	16%
40nm<x<=65nm	18%	17%	18%	17%	16%
65nm<x<=90nm	8%	8%	8%	7%	8%
90nm<x<=0.13um	7%	7%	8%	7%	7%
0.13um<x<=0.18um	10%	10%	9%	9%	10%
0.18um<x<=0.35um	4%	4%	4%	4%	5%
0.5um and above	1%	1%	1%	1%	1%

Revenue from fabless customers accounted for 86% of revenue.

Revenue Breakdown by Customer Type
Customer Type	1Q26	4Q25	3Q25	2Q25	1Q25
Fabless	86%	80%	81%	81%	82%
IDM	14%	20%	19%	19%	18%

Revenue from the communication segment accounted for 39%, while business from computer applications was 12% of sales. Business from consumer applications accounted for 32%, while other segments was 17% of revenue.

Revenue Breakdown by Application ⁽¹⁾
Application	1Q26	4Q25	3Q25	2Q25	1Q25
Computer	12%	12%	12%	11%	11%
Communication	39%	42%	42%	41%	40%
Consumer	32%	28%	29%	33%	34%
Others	17%	18%	17%	15%	15%

(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.

Blended ASP Trend

(To view blended ASP trend, please click here for 1Q26 ASP)

Shipment and Utilization Rate³

Wafer shipments increased 2.7% QoQ to 1,021K during the first quarter, while quarterly capacity was 1,283K. Overall utilization rate in 1Q26 was 79%.

Wafer Shipments
	1Q26	4Q25	3Q25	2Q25	1Q25
Wafer Shipments (12" K equivalents)	1,021	994	1,000	967	910

Quarterly Capacity Utilization Rate
	1Q26	4Q25	3Q25	2Q25	1Q25
Utilization Rate	79%	78%	78%	76%	69%
Total Capacity (12" K equivalents)	1,283	1,305	1,305	1,290	1,264

Capacity⁴

Total capacity in the first quarter was 1,283K 12-inch equivalent wafers. Capacity will increase to 1,305K 12-inch equivalent wafers in the second quarter of 2026.

Annual Capacity in *thousands of wafers*							Quarterly Capacity in *thousands of wafers*
FAB		Geometry (um)	2025	2024	2023	2022	FAB		2Q26E	1Q26	4Q25	3Q25
WTK	6"	5 – 0.15	317	331	328	335	WTK	6"	80	78	80	80
8A	8"	3 – 0.11	857	829	811	765	8A	8"	215	212	215	215
8C	8"	0.35 – 0.11	500	477	473	459	8C	8"	125	123	125	125
8D	8"	0.18 – 0.11	471	473	440	410	8D	8"	118	116	118	118
8E	8"	0.6 – 0.11	522	524	490	469	8E	8"	131	129	131	131
8F	8"	0.18 – 0.11	583	578	570	550	8F	8"	146	144	146	146
8S	8"	0.18 – 0.11	466	455	447	443	8S	8"	117	115	117	117
8N	8"	0.5 – 0.11	996	1,013	996	952	8N	8"	250	246	250	250
12A	12"	0.13 – 0.014	1,629	1,556	1,305	1,170	12A	12"	409	402	409	409
12i	12"	0.13 – 0.040	684	678	655	655	12i	12"	172	169	172	172
12X	12"	0.080 – 0.022	347	318	317	314	12X	12"	95	93	95	95
12M	12"	0.13 – 0.040	471	455	438	436	12M	12"	119	117	119	119
Total⁽¹⁾			5,163	5,022	4,674	4,458	Total		1,305	1,283	1,305	1,305
YoY Growth Rate			3%	7%	5%	6%

⁽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 1Q26 totaled US$416 million. 2026 cash-based CAPEX budget will be US$1.5 billion.

Capital Expenditure by Year - in US$ billion
Year	2025	2024	2023	2022	2021
CAPEX	$ 1.6	$ 2.9	$ 3.0	$ 2.7	$ 1.8

2026 CAPEX Plan
8"	12"	Total
10%	90%	US$1.5 billion

Second Quarter 2026 Outlook & Guidance

Quarter-over-Quarter Guidance:

Wafer Shipments: Will increase by high-single digit
ASP in USD: Will increase by low-single digit
Gross Profit Margin: Approximately 30%
Capacity Utilization: low-80% range
2026 CAPEX: US$1.5 billion

Recent Developments / Announcements

Feb. 23, 2026	UMC Again Ranks Top 1% in the Semiconductor Industry in S&P Global Sustainability Yearbook 2026
Feb. 25, 2026	UMC Announces Key Changes in Executive Leadership
Feb. 25, 2026	UMC Board of Directors Announces Proposals for its Annual Shareholders Meeting
Mar. 04, 2026	Infineon and UMC Partner in Driving Decarbonization Across the Supply Chain
Mar. 11, 2026	Adeia and UMC Expand Long-Term Collaboration in Hybrid Bonding Technologies
Mar. 12, 2026	HyperLight, UMC, and Wavetek Announce Strategic Partnership for High-Volume Foundry Production of TFLN Chiplet™ Platform
Mar. 13, 2026	HyperLight and UMC Collaborate with Jabil to Bring TFLN Photonics to Data-Center Scale Deployment
Mar. 20, 2026	UMC Earns Intel's 2026 EPIC Supplier Award
Apr. 21, 2026	UMC earns highest "AAA" rating in MSCI ESG Ratings

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

Conference Call / Webcast Announcement

Wednesday, April 29, 2026

Time: 5:00 PM (Taipei) / 5:00 AM (New York) / 10:00 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:	1243029#

A live webcast and replay of the 1Q26 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 first quarter of 2026; 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 "Second Quarter 2026 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 March 31, 2026
Figures in Millions of New Taiwan Dollars (NT$) and U.S. Dollars (US$)


	March 31, 2026
	US$	NT$	%
Assets
Current assets
Cash and cash equivalents	3,407	109,019	18.2%
Accounts receivable, net	1,113	35,603	5.9%
Inventories, net	1,208	38,645	6.4%
Other current assets	1,037	33,173	5.5%
Total current assets	6,764	216,440	36.1%

Non-current assets
Funds and investments	2,720	87,052	14.5%
Property, plant and equipment	8,372	267,898	44.7%
Right-of-use assets	234	7,500	1.3%
Other non-current assets	658	21,042	3.5%
Total non-current assets	11,984	383,492	63.9%
Total assets	18,748	599,932	100.0%

Liabilities
Current liabilities
Short-term loans	112	3,590	0.6%
Payables	1,408	45,061	7.5%
Current portion of long-term liabilities	603	19,299	3.2%
Other current liabilities	364	11,662	1.9%
Total current liabilities	2,488	79,611	13.3%

Non-current liabilities
Bonds payable	1,065	34,073	5.7%
Long-term loans	409	13,092	2.2%
Lease liabilities, noncurrent	167	5,354	0.9%
Other non-current liabilities	1,908	61,065	10.2%
Total non-current liabilities	3,550	113,584	18.9%
Total liabilities	6,037	193,196	32.2%

Equity
Equity attributable to the parent company
Capital	3,931	125,785	21.0%
Additional paid-in capital	494	15,812	2.6%
Retained earnings and other components of equity	8,284	265,103	44.2%
Total equity attributable to the parent company	12,709	406,701	67.8%
Non-controlling interests	1	36	0.0%
Total equity	12,711	406,736	67.8%
Total liabilities and equity	18,748	599,932	100.0%







Notes:
(1) The U.S. dollar amounts have been translated at an exchange rate of NT $32.00 per U.S. dollar as of March 31, 2026.
(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
	March 31, 2026				March 31, 2025		Chg.		March 31, 2026				December 31, 2025		Chg.
	US$		NT$		NT$		%		US$		NT$		NT$		%
Operating revenues	1,930		61,038		57,859		5.5	%	1,930		61,038		61,810		(1.2	%)
Operating costs	(1,367	)	(43,219	)	(42,412	)	1.9	%	(1,367	)	(43,219	)	(42,851	)	0.9	%
Gross profit	563		17,818		15,447		15.4	%	563		17,818		18,958		(6.0	%)
	29.2	%	29.2	%	26.7	%			29.2	%	29.2	%	30.7	%
Operating expenses
- Sales and marketing expenses	(22	)	(689	)	(619	)	11.3	%	(22	)	(689	)	(595	)	15.8	%
- General and administrative expenses	(58	)	(1,834	)	(1,542	)	18.9	%	(58	)	(1,834	)	(1,853	)	(1.0	%)
- Research and development expenses	(145	)	(4,575	)	(3,964	)	15.4	%	(145	)	(4,575	)	(4,937	)	(7.3	%)
- Expected credit impairment gain	0		0		2		(98.1	%)	0		0		0		2,150	%
Subtotal	(224	)	(7,099	)	(6,123	)	15.9	%	(224	)	(7,099	)	(7,384	)	(3.9	%)
Net other operating income and expenses	18		557		462		20.4	%	18		557		651		(14.5	%)
Operating income	357		11,276		9,786		15.2	%	357		11,276		12,225		(7.8	%)
	18.5	%	18.5	%	16.9	%			18.5	%	18.5	%	19.8	%

Net non-operating income and expenses	170		5,367		(439	)	-		170		5,367		3,278		63.8	%
Income from continuing operations before income tax	526		16,644		9,347		78.1	%	526		16,644		15,503		7.4	%
	27.3	%	27.3	%	16.2	%			27.3	%	27.3	%	25.1	%

Income tax expense	(17	)	(527	)	(1,603	)	(67.1	%)	(17	)	(527	)	(5,504	)	(90.4	%)
Net income	510		16,117		7,743		108.1	%	510		16,117		9,999		61.2	%
	26.4	%	26.4	%	13.4	%			26.4	%	26.4	%	16.2	%

Other comprehensive income (loss)	323		10,205		4,489		127.3	%	323		10,205		8,721		17.0	%

Total comprehensive income (loss)	832		26,322		12,232		115.2	%	832		26,322		18,720		40.6	%

Net income attributable to:
Shareholders of the parent	511		16,171		7,777		107.9	%	511		16,171		10,055		60.8	%
Non-controlling interests	(2	)	(54	)	(34	)	62.6	%	(2	)	(54	)	(56	)	(2.0	%)

Comprehensive income (loss) attributable to:
Shareholders of the parent	834		26,376		12,266		115.0	%	834		26,376		18,776		40.5	%
Non-controlling interests	(2	)	(54	)	(33	)	62.6	%	(2	)	(54	)	(56	)	(1.9	%)

Earnings per share-basic	0.041		1.29		0.62				0.041		1.29		0.81
Earnings per ADS ⁽²⁾	0.204		6.45		3.10				0.204		6.45		4.05
Weighted average number of shares
outstanding (in millions)			12,491		12,485						12,491		12,487


Notes:
(1) The U.S. dollar amounts have been translated at the weighted-average exchange rate of NT $31.63 per U.S. dollar for the three-month period ended March 31, 2026.
(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 Three-Month Period Ended
	March 31, 2026						March 31, 2026
	US$		NT$		%		US$		NT$		%
Operating revenues	1,930		61,038		100.0	%	1,930		61,038		100.0	%
Operating costs	(1,367	)	(43,219	)	(70.8	%)	(1,367	)	(43,219	)	(70.8	%)
Gross profit	563		17,818		29.2	%	563		17,818		29.2	%


Operating expenses
- Sales and marketing expenses	(22	)	(689	)	(1.1	%)	(22	)	(689	)	(1.1	%)
- General and administrative expenses	(58	)	(1,834	)	(3.0	%)	(58	)	(1,834	)	(3.0	%)
- Research and development expenses	(145	)	(4,575	)	(7.5	%)	(145	)	(4,575	)	(7.5	%)
- Expected credit impairment gain	0		0		0.0	%	0		0		0.0	%
Subtotal	(224	)	(7,099	)	(11.6	%)	(224	)	(7,099	)	(11.6	%)
Net other operating income and expenses	18		557		0.9	%	18		557		0.9	%
Operating income	357		11,276		18.5	%	357		11,276		18.5	%

Net non-operating income and expenses	170		5,367		8.8	%	170		5,367		8.8	%
Income from continuing operations before income tax	526		16,644		27.3	%	526		16,644		27.3	%


Income tax expense	(17	)	(527	)	(0.9	%)	(17	)	(527	)	(0.9	%)
Net income	510		16,117		26.4	%	510		16,117		26.4	%

Other comprehensive income (loss)	323		10,205		16.7	%	323		10,205		16.7	%

Total comprehensive income (loss)	832		26,322		43.1	%	832		26,322		43.1	%

Net income attributable to:
Shareholders of the parent	511		16,171		26.5	%	511		16,171		26.5	%
Non-controlling interests	(2	)	(54	)	(0.1	%)	(2	)	(54	)	(0.1	%)

Comprehensive income (loss) attributable to:
Shareholders of the parent	834		26,376		43.2	%	834		26,376		43.2	%
Non-controlling interests	(2	)	(54	)	(0.1	%)	(2	)	(54	)	(0.1	%)

Earnings per share-basic	0.041		1.29				0.041		1.29
Earnings per ADS ⁽²⁾	0.204		6.45				0.204		6.45

Weighted average number of shares outstanding (in millions)			12,491						12,491

Notes:
(1) The U.S. dollar amounts have been translated at the weighted-average exchange rate of NT $31.63 per U.S. dollar for the three-month period ended March 31, 2026.
(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 Three-Month Period Ended March 31, 2026
Figures in Millions of New Taiwan Dollars (NT$) and U.S. Dollars (US$)

	US$		NT$
Cash flows from operating activities :
Net income before tax	526		16,644
Depreciation & Amortization	506		15,987
Share of profit of associates and joint ventures	(89	)	(2,815	)
Income tax paid	(15	)	(464	)
Changes in working capital & others	(233	)	(7,370	)
Net cash provided by operating activities	695		21,981

Cash flows from investing activities :
Increase in financial assets measured at amortized cost	(225	)	(7,101	)
Acquisition of property, plant and equipment	(396	)	(12,526	)
Acquisition of intangible assets	(22	)	(681	)
Others	(33	)	(1,040	)
Net cash used in investing activities	(675	)	(21,348	)

Cash flows from financing activities :
Decrease in short-term loans	(152	)	(4,821	)
Proceeds from long-term loans	156		4,931
Repayments of long-term loans	(100	)	(3,149	)
Others	(20	)	(647	)
Net cash used in financing activities	(117	)	(3,686	)

Effect of exchange rate changes on cash and cash equivalents	45		1,411
Net decrease in cash and cash equivalents	(52	)	(1,641	)

Cash and cash equivalents at beginning of period	3,499		110,660

Cash and cash equivalents at end of period	3,447		109,019


Notes:
(1) The U.S. dollar amounts have been translated at the weighted-average exchange rate of NT $31.63 per U.S. dollar for the three-month period ended March 31, 2026.

(2) Sums may not equal totals due to rounding.

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 March 31, 2026, the three-month period ending December 31, 2025, and the equivalent three-month period that ended March 31, 2025. For all 1Q26 results, the U.S. dollar amounts have been translated at the weighted-average exchange rate of NT$31.63 per U.S. dollar for the three-month period ended March 31, 2026.

² Revenue in this section represents wafer sales.

³ Utilization Rate = Quarterly Wafer Out / Quarterly Capacity

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.

View source version on businesswire.com: https://www.businesswire.com/news/home/20260429074239/en/

Michael Lin / David Wong

UMC, Investor Relations

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

jinhong_lin@umc.com

david_wong@umc.com

UMC Reports First Quarter 2026 Results