22/28nm business reaches record high, accounting for 40% of Q2 revenue

Second Quarter 2025 Overview¹:

Revenue: NT$58.76 billion (US$2.01 billion)
Gross margin: 28.7%; Operating margin: 18.4%
Revenue from 22/28nm: 40%
Capacity utilization rate: 76%
Net income attributable to shareholders of the parent: NT$8.90 billion (US$304 million)
Earnings per share: NT$0.71; earnings per ADS: US$0.121

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

Second quarter consolidated revenue was NT$58.76 billion, increasing 1.6% from NT$57.86 billion in 1Q25. Compared to a year ago, 2Q25 revenue increased 3.4%. Consolidated gross margin for 2Q25 was 28.7%. Net income attributable to the shareholders of the parent was NT$8.90 billion, with earnings per ordinary share of NT$0.71.

Jason Wang, co-president of UMC, said, "In the second quarter, the utilization rate increased to 76%, as wafer shipments grew 6.2% QoQ, primarily driven by communications in imaging signal processors, NAND controllers, WiFi and LCD controllers. While we experienced an increase in the overall utilization and a growth of our 22/28nm portfolio, the unfavorable foreign exchange movement of the NT dollar capped our gross margin to 28.7% by nearly 3 percentage points. Revenue from our 22/28nm portfolio continued to grow sequentially, now accounting for 40% of total sales, a record high in both percentage and absolute dollar terms. Our industry-leading 22/28nm solutions continue to win adoption by customers, and we expect to see further market share gains in wireless communications over the coming quarters. We have always believed that, with the right differentiation, 22/28nm is a strong and long-lasting node with a robust product pipeline. In addition, the new Phase 3 facility at our Singapore Fab 12i, set to start production in 2026, will enable UMC to better serve customers seeking diversified manufacturing for enhanced supply chain resilience."

Co-president Wang added, "Looking ahead to the third quarter, we expect a mild increase in wafer shipments. However, adverse foreign exchange movement will lead to a decline in NT dollar revenue. We are closely monitoring the near-term uncertainties and risks as the markets anticipate US tariff policies. To navigate macro and geopolitical headwinds, including foreign exchange risks, UMC will continue to actively manage our foreign exchange exposure and maintain financial flexibility to enhance our financial structure and business resilience."

Co-president Wang said, "UMC was the recipient of two prestigious accolades at the 2025 Asia Responsible Enterprise Awards (AREA), organized by Enterprise Asia. Among the honors, UMC Co-President and Chief Sustainability Officer SC Chien received an award in the Responsible Business Leadership category, recognizing his leadership in advancing both business operations and sustainable development at UMC. In addition, UMC received the Corporate Sustainability Reporting Award for the company's longstanding commitment to transparency and integrity in ESG disclosures."

Summary of Operating Results

Operating Results
(Amount: NT$ million)	2Q25		1Q25		QoQ % change		2Q24		YoY % change
Operating Revenues	58,758		57,859		1.6		56,799		3.4
Gross Profit	16,878		15,447		9.3		19,983		(15.5	)
Operating Expenses	(6,467	)	(6,123	)	5.6		(6,311	)	2.5
Net Other Operating Income and Expenses	409		462		(11.5	)	219		86.6
Operating Income	10,820		9,786		10.6		13,891		(22.1	)
Net Non-Operating Income and Expenses	(666	)	(439	)	51.5		2,529		-
Net Income Attributable to Shareholders of the Parent	8,903		7,777		14.5		13,786		(35.4	)
EPS (NT$ per share)	0.71		0.62				1.11
EPS (US$ per ADS)	0.121		0.093				0.171
Exchange rate (USD/NTD)	29.28		33.18				32.43
Note：Sums may not equal totals due to rounding.

Second quarter operating revenues grew 1.6% sequentially to NT$58.76 billion. Revenue contribution from 40nm and below technologies represented 55% of wafer revenue. Gross profit increased 9.3% QoQ to NT$16.88 billion, or 28.7% of revenue. Operating expenses increased 5.6% to NT$6.47 billion. Net other operating income decreased 11.5% to NT$0.41 billion. Net non-operating expenses totaled NT$0.67 billion. Net income attributable to shareholders of the parent amounted to NT$8.90 billion.

Earnings per ordinary share for the quarter was NT$0.71. Earnings per ADS was US$0.121. The basic weighted average number of shares outstanding in 2Q25 was 12,484,877,493, compared with 12,484,780,989 shares in 1Q25 and 12,414,189,313 shares in 2Q24. The diluted weighted average number of shares outstanding was 12,534,082,055 in 2Q25, compared with 12,579,207,466 shares in 1Q25 and 12,529,942,186 shares in 2Q24. The fully diluted shares counted on June 30, 2025 were approximately 12,534,367,000.

Detailed Financials Section

Operating revenues increased to NT$58.76 billion. COGS decreased 1.3% QoQ to NT$41.88 billion. Gross profit increased 9.3% to NT$16.88 billion. Operating expenses grew 5.6% QoQ to NT$6.47 billion, as G&A increased 9.1% to NT$1.68 billion, R&D increased 5.8% to NT$4.19 billion, while Sales & Marketing decreased 4.5% to NT$0.59 billion. Net other operating income was NT$0.41 billion. In 2Q25, operating income increased 10.6% QoQ to NT$10.82 billion.

COGS & Expenses
(Amount: NT$ million)	2Q25		1Q25		QoQ % change		2Q24		YoY % change
Operating Revenues	58,758		57,859		1.6		56,799		3.4
COGS	(41,880	)	(42,412	)	(1.3	)	(36,816	)	13.8
Depreciation	(12,317	)	(12,321	)	(0.0	)	(9,460	)	30.2
Other Mfg. Costs	(29,563	)	(30,091	)	(1.8	)	(27,356	)	8.1
Gross Profit	16,878		15,447		9.3		19,983		(15.5	)
Gross Margin (%)	28.7	%	26.7	%			35.2	%
Operating Expenses	(6,467	)	(6,123	)	5.6		(6,311	)	2.5
Sales & Marketing	(591	)	(619	)	(4.5	)	(678	)	(12.8	)
G&A	(1,682	)	(1,542	)	9.1		(1,804	)	(6.8	)
R&D	(4,194	)	(3,964	)	5.8		(3,853	)	8.9
Expected Credit Impairment Gain (Loss)	(0	)	2		-		24		-
Net Other Operating Income & Expenses	409		462		(11.5	)	219		86.6
Operating Income	10,820		9,786		10.6		13,891		(22.1	)
Note：Sums may not equal totals due to rounding.

Net non-operating expenses in 2Q25 was NT$0.67 billion, primarily reflecting the NT$1.28 billion in exchange loss, offset by the NT$0.33 billion in net investment gain, and the NT$0.31 billion in net interest income.

Non-Operating Income and Expenses
(Amount: NT$ million)	2Q25		1Q25		2Q24
Non-Operating Income and Expenses	(666	)	(439	)	2,529
Net Interest Income and Expenses	309		219		701
Net Investment Gain and Loss	326		(769	)	1,440
Exchange Gain and Loss	(1,280	)	115		407
Other Gain and Loss	(20	)	(5	)	(19	)
Note：Sums may not equal totals due to rounding.

In 2Q25, cash inflow from operating activities was NT$22.10 billion. Cash outflow from investing activities totaled NT$9.44 billion, which included NT$8.37 billion in capital expenditures, resulting in free cash flow of NT$13.73 billion. Cash inflow from financing activities was NT$1.15 billion, primarily from NT$5.20 billion in bonds issued, offset by a NT$3.77 billion decreased in bank loans. Net cash flow in 2Q25 amounted to NT$5.64 billion. Over the next 12 months, the company expects to repay NT$3.72 billion in bank loans.

Cash Flow Summary
(Amount: NT$ million)	For the 3-Month Period Ended Jun. 30, 2025		For the 3-Month Period Ended Mar. 31, 2025
Cash Flow from Operating Activities	22,098		23,826
Net income before tax	10,154		9,347
Depreciation & Amortization	14,506		14,128
Share of loss (profit) of associates and joint ventures	(446	)	208
Income tax paid	(2,135	)	(585	)
Changes in working capital & others	19		728
Cash Flow from Investing Activities	(9,438	)	(10,506	)
Decrease (increase) in financial assets measured at amortized cost	(1,397	)	252
Acquisition of PP&E	(7,543	)	(14,153	)
Acquisition of intangible assets	(1,045	)	(329	)
Others	547		3,724
Cash Flow from Financing Activities	1,149		(13,776	)
Bank loans	(3,767	)	(13,018	)
Bonds issued	5,200		-
Others	(284	)	(758	)
Effect of Exchange Rate	(8,169	)	1,810
Net Cash Flow	5,640		1,354
Beginning balance	106,354		105,000
Ending balance	111,994		106,354
Note：Sums may not equal totals due to rounding.

Cash and cash equivalents increased to NT$111.99 billion. Days of inventory decreased 1 day to 76 days.

Current Assets
(Amount: NT$ billion)	2Q25	1Q25	2Q24
Cash and Cash Equivalents	111.99	106.35	121.23
Accounts Receivable	32.38	34.80	32.53
Days Sales Outstanding	52	54	51
Inventories, net	34.02	35.43	36.33
Days of Inventory	76	77	88
Total Current Assets	195.18	192.32	207.22

Current liabilities increased to NT$110.39 billion due to dividends payable of NT$35.79 billion. Long-term credit/bonds decreased to NT$41.60 billion. Total liabilities increased to NT$211.10 billion, leading to a debt to equity ratio of 63%.

Liabilities
(Amount: NT$ billion)	2Q25		1Q25		2Q24
Total Current Liabilities	110.39		72.87		124.97
Accounts Payable	8.54		9.27		8.18
Short-Term Credit / Bonds	21.30		17.63		16.21
Payables on Equipment	8.35		8.46		22.36
Dividends Payable	35.79		-		37.59
Other	36.41		37.51		40.63
Long-Term Credit / Bonds	41.60		44.63		47.48
Total Liabilities	211.10		182.13		230.87
Debt to Equity	63	%	47	%	65	%

Analysis of Revenue²

Revenue from Asia Pacific increased to 67%, while business from North America was 20% of sales. Business from Europe increased to 8%, while contribution from Japan was 5%.

Revenue Breakdown by Region
Region	2Q25		1Q25		4Q24		3Q24		2Q24
North America	20	%	22	%	25	%	26	%	25	%
Asia Pacific	67	%	66	%	61	%	65	%	64	%
Europe	8	%	7	%	11	%	5	%	7	%
Japan	5	%	5	%	3	%	4	%	4	%

Revenue contribution from 22/28nm increased to 40% of wafer revenue, while 40nm contribution slightly decreased to 15% of sales.

Revenue Breakdown by Geometry
Geometry	2Q25		1Q25		4Q24		3Q24		2Q24
14nm and below	0	%	0	%	0	%	0	%	0	%
14nm<x<=28nm	40	%	37	%	34	%	35	%	33	%
28nm<x<=40nm	15	%	16	%	16	%	13	%	12	%
40nm<x<=65nm	17	%	16	%	16	%	15	%	15	%
65nm<x<=90nm	7	%	8	%	11	%	10	%	12	%
90nm<x<=0.13um	7	%	7	%	10	%	10	%	11	%
0.13um<x<=0.18um	9	%	10	%	9	%	11	%	10	%
0.18um<x<=0.35um	4	%	5	%	4	%	5	%	5	%
0.5um and above	1	%	1	%	0	%	1	%	2	%

Revenue from fabless customers accounted for 81% of revenue.

Revenue Breakdown by Customer Type
Customer Type	2Q25		1Q25		4Q24		3Q24		2Q24
Fabless	81	%	82	%	84	%	85	%	87	%
IDM	19	%	18	%	16	%	15	%	13	%

Revenue from the communication segment accounted for 41%, while business from computer applications was 11% of sales. Business from consumer applications accounted for 33%, while other segments was 15% of revenue.

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

Blended average selling price (ASP) remained firm in 2Q25.

(To view blended ASP trend, please click here for 2Q25 ASP)

Shipment and Utilization Rate³

Wafer shipments increased 6.2% QoQ to 967K during the second quarter, while quarterly capacity was 1,290K. Overall utilization rate in 2Q25 grew to 76%.

Wafer Shipments
	2Q25		1Q25		4Q24		3Q24		2Q24
Wafer Shipments (12" K equivalents)	967		910		909		896		831

Quarterly Capacity Utilization Rate
	2Q25		1Q25		4Q24		3Q24		2Q24
Utilization Rate	76	%	69	%	70	%	71	%	68	%
Total Capacity (12" K equivalents)	1,290		1,264		1,280		1,274		1,257

Capacity⁴

Total capacity in the second quarter increased to 1,290K 12-inch equivalent wafers. Capacity will grow in the third quarter of 2025 to 1,305K 12-inch equivalent wafers.

Annual Capacity in *thousands of wafers*											Quarterly Capacity in *thousands of wafers*
FAB		Geometry (um)	2024		2023		2022		2021		FAB		3Q25E	2Q25	1Q25	4Q24
WTK	6"	5 – 0.15	331		328		335		329		WTK	6"	80	80	78	83
8A	8"	3 – 0.11	829		811		765		755		8A	8"	215	215	212	207
8C	8"	0.35 – 0.11	477		473		459		459		8C	8"	125	125	123	119
8D	8"	0.18 – 0.09	473		440		410		380		8D	8"	118	118	116	118
8E	8"	0.6 – 0.14	524		490		469		457		8E	8"	131	131	129	131
8F	8"	0.18 – 0.11	578		570		550		514		8F	8"	146	146	144	145
8S	8"	0.18 – 0.11	455		447		443		408		8S	8"	117	117	115	114
8N	8"	0.5 – 0.11	1,013		996		952		917		8N	8"	250	250	246	254
12A	12"	0.13 – 0.014	1,556		1,305		1,170		1,070		12A	12"	409	409	402	409
12i	12"	0.13 – 0.040	678		655		655		641		12i	12"	172	172	169	172
12X	12"	0.080 – 0.022	318		317		314		284		12X	12"	95	80	78	80
12M	12"	0.13 – 0.040	455		438		436		395		12M	12"	119	119	113	115
Total⁽¹⁾			5,022		4,674		4,458		4,201		Total		1,305	1,290	1,264	1,280
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 2Q25 totaled US$273 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

Third Quarter 2025 Outlook & Guidance

Quarter-over-Quarter Guidance:

Wafer Shipments: Will increase by low-single digit %
ASP in USD: Will remain firm
Gross Profit Margin: Will be approximately Q2 gross margin subject to FX effect
Capacity Utilization: mid-70% range
2025 CAPEX: US$1.8 billion

Recent Developments / Announcements

Apr. 30, 2025		UMC Achieves Highest Corporate Governance Ranking among Taiwan Listed Companies for 11th Consecutive Year
May 28, 2025		UMC Shareholders Approve NT$2.85 Cash Dividend at Annual Shareholders' Meeting
Jun. 30, 2025		UMC Wins Two Honors at the 2025 Asia Responsible Enterprise Awards

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

Conference Call / Webcast Announcement

Wednesday, July 30, 2025

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:		3515530#

A live webcast and replay of the 2Q25 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 second 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 "Third 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 June 30, 2025
Figures in Millions of New Taiwan Dollars (NT$) and U.S. Dollars (US$)


	June 30, 2025
	US$	NT$	%
Assets
Current assets
Cash and cash equivalents	3,825	111,994	20.4	%
Accounts receivable, net	1,106	32,380	5.9	%
Inventories, net	1,162	34,018	6.2	%
Other current assets	573	16,783	3.1	%
Total current assets	6,666	195,175	35.6	%

Non-current assets
Funds and investments	2,356	68,972	12.6	%
Property, plant and equipment	8,833	258,627	47.2	%
Right-of-use assets	249	7,291	1.3	%
Other non-current assets	617	18,079	3.3	%
Total non-current assets	12,055	352,969	64.4	%
Total assets	18,721	548,144	100.0	%

Liabilities
Current liabilities
Short-term loans	223	6,524	1.2	%
Payables	1,470	43,035	7.9	%
Dividends payable	1,222	35,788	6.5	%
Current portion of long-term liabilities	505	14,778	2.7	%
Other current liabilities	351	10,268	1.9	%
Total current liabilities	3,770	110,393	20.1	%

Non-current liabilities
Bonds payable	829	24,283	4.4	%
Long-term loans	591	17,318	3.2	%
Lease liabilities, noncurrent	184	5,382	1.0	%
Other non-current liabilities	1,835	53,723	9.8	%
Total non-current liabilities	3,439	100,705	18.4	%
Total liabilities	7,210	211,098	38.5	%

Equity
Equity attributable to the parent company
Capital	4,288	125,565	22.9	%
Additional paid-in capital	513	15,023	2.7	%
Retained earnings and other components of equity	6,704	196,284	35.8	%
Total equity attributable to the parent company	11,505	336,871	61.5	%
Non-controlling interests	6	174	0.0	%
Total equity	11,511	337,046	61.5	%
Total liabilities and equity	18,721	548,144	100.0	%

Notes:
(1) New Taiwan Dollars have been translated into U.S. Dollars at the June 30, 2025 exchange rate of NT $29.28 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
	June 30, 2025				June 30, 2024		Chg.		June 30, 2025				March 31, 2025		Chg.
	US$		NT$		NT$		%		US$		NT$		NT$		%
Operating revenues	2,007		58,758		56,799		3.4	%	2,007		58,758		57,859		1.6	%
Operating costs	(1,430	)	(41,880	)	(36,816	)	13.8	%	(1,430	)	(41,880	)	(42,412	)	(1.3	%)
Gross profit	576		16,878		19,983		(15.5	%)	576		16,878		15,447		9.3	%
	28.7	%	28.7	%	35.2	%			28.7	%	28.7	%	26.7	%
Operating expenses
- Sales and marketing expenses	(20	)	(591	)	(678	)	(12.8	%)	(20	)	(591	)	(619	)	(4.5	%)
- General and administrative expenses	(57	)	(1,682	)	(1,804	)	(6.8	%)	(57	)	(1,682	)	(1,542	)	9.1	%
- Research and development expenses	(143	)	(4,194	)	(3,853	)	8.9	%	(143	)	(4,194	)	(3,964	)	5.8	%
- Expected credit impairment gain (loss)	(0	)	(0	)	24		-		(0	)	(0	)	2		-
Subtotal	(221	)	(6,467	)	(6,311	)	2.5	%	(221	)	(6,467	)	(6,123	)	5.6	%
Net other operating income and expenses	14		409		219		86.6	%	14		409		462		(11.5	%)
Operating income	370		10,820		13,891		(22.1	%)	370		10,820		9,786		10.6	%
	18.4	%	18.4	%	24.5	%			18.4	%	18.4	%	16.9	%

Net non-operating income and expenses	(23	)	(666	)	2,529		-		(23	)	(666	)	(439	)	51.5	%
Income from continuing operations before income tax	347		10,154		16,420		(38.2	%)	347		10,154		9,347		8.6	%
	17.3	%	17.3	%	28.9	%			17.3	%	17.3	%	16.2	%

Income tax expense	(45	)	(1,306	)	(2,645	)	(50.6	%)	(45	)	(1,306	)	(1,603	)	(18.5	%)
Net income	302		8,848		13,775		(35.8	%)	302		8,848		7,743		14.3	%
	15.1	%	15.1	%	24.3	%			15.1	%	15.1	%	13.4	%

Other comprehensive income (loss)	(925	)	(27,075	)	1,375		-		(925	)	(27,075	)	4,489		-

Total comprehensive income (loss)	(623	)	(18,227	)	15,150		-		(623	)	(18,227	)	12,232		-

Net income attributable to:
Shareholders of the parent	304		8,903		13,786		(35.4	%)	304		8,903		7,777		14.5	%
Non-controlling interests	(2	)	(55	)	(11	)	398.2	%	(2	)	(55	)	(34	)	62.8	%

Comprehensive income (loss) attributable to:
Shareholders of the parent	(621	)	(18,172	)	15,161		-		(621	)	(18,172	)	12,266		-
Non-controlling interests	(2	)	(55	)	(11	)	401.2	%	(2	)	(55	)	(33	)	63.7	%

Earnings per share-basic	0.024		0.71		1.11				0.024		0.71		0.62
Earnings per ADS ⁽²⁾	0.121		3.55		5.55				0.121		3.55		3.10
Weighted average number of shares
outstanding (in millions)			12,485		12,414						12,485		12,485

Notes:
(1) New Taiwan Dollars have been translated into U.S. Dollars at the June 30, 2025 exchange rate of NT $29.28 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 Six-Month Period Ended
	June 30, 2025						June 30, 2025
	US$		NT$		%		US$		NT$		%
Operating revenues	2,007		58,758		100.0	%	3,983		116,617		100.0	%
Operating costs	(1,430	)	(41,880	)	(71.3	%)	(2,879	)	(84,292	)	(72.3	%)
Gross profit	576		16,878		28.7	%	1,104		32,325		27.7	%


Operating expenses
- Sales and marketing expenses	(20	)	(591	)	(1.0	%)	(41	)	(1,210	)	(1.0	%)
- General and administrative expenses	(57	)	(1,682	)	(2.9	%)	(110	)	(3,225	)	(2.8	%)
- Research and development expenses	(143	)	(4,194	)	(7.1	%)	(279	)	(8,157	)	(7.0	%)
- Expected credit impairment gain (loss)	(0	)	(0	)	(0.0	%)	0		2		0.0	%
Subtotal	(221	)	(6,467	)	(11.0	%)	(430	)	(12,590	)	(10.8	%)
Net other operating income and expenses	14		409		0.7	%	30		871		0.8	%
Operating income	370		10,820		18.4	%	704		20,606		17.7	%

Net non-operating income and expenses	(23	)	(666	)	(1.1	%)	(38	)	(1,105	)	(1.0	%)
Income from continuing operations before income tax	347		10,154		17.3	%	666		19,501		16.7	%


Income tax expense	(45	)	(1,306	)	(2.2	%)	(99	)	(2,909	)	(2.5	%)
Net income	302		8,848		15.1	%	567		16,591		14.2	%

Other comprehensive income (loss)	(925	)	(27,075	)	(46.1	%)	(771	)	(22,586	)	(19.4	%)

Total comprehensive income (loss)	(623	)	(18,227	)	(31.0	%)	(205	)	(5,995	)	(5.1	%)

Net income attributable to:
Shareholders of the parent	304		8,903		15.2	%	570		16,679		14.3	%
Non-controlling interests	(2	)	(55	)	(0.1	%)	(3	)	(88	)	(0.1	%)

Comprehensive income (loss) attributable to:
Shareholders of the parent	(621	)	(18,172	)	(30.9	%)	(202	)	(5,906	)	(5.1	%)
Non-controlling interests	(2	)	(55	)	(0.1	%)	(3	)	(88	)	(0.1	%)

Earnings per share-basic	0.024		0.71				0.046		1.34
Earnings per ADS ⁽²⁾	0.121		3.55				0.229		6.70

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 June 30, 2025 exchange rate of NT $29.28 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 Six-Month Period Ended June 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	666		19,501
Depreciation & Amortization	978		28,634
Share of profit of associates and joint ventures	(8	)	(238	)
Income tax paid	(93	)	(2,719	)
Changes in working capital & others	26		747
Net cash provided by operating activities	1,568		45,924

Cash flows from investing activities :
Increase in financial assets measured at amortized cost	(39	)	(1,145	)
Acquisition of property, plant and equipment	(741	)	(21,696	)
Acquisition of intangible assets	(47	)	(1,374	)
Others	146		4,271
Net cash used in investing activities	(681	)	(19,943	)

Cash flows from financing activities :
Decrease in short-term loans	(68	)	(1,991	)
Proceeds from bonds issued	178		5,200
Proceeds from long-term loans	96		2,800
Repayments of long-term loans	(601	)	(17,594	)
Others	(36	)	(1,043	)
Net cash used in financing activities	(431	)	(12,627	)

Effect of exchange rate changes on cash and cash equivalents	(217	)	(6,359	)
Net increase in cash and cash equivalents	239		6,994

Cash and cash equivalents at beginning of period	3,586		105,000

Cash and cash equivalents at end of period	3,825		111,994

Notes:
(1) New Taiwan Dollars have been translated into U.S. Dollars at the June 30, 2025 exchange rate of NT $29.28 per U.S. Dollar.
(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 June 30, 2025, the three-month period ending March 31, 2025, and the equivalent three-month period that ended June 30, 2024. For all 2Q25 results, New Taiwan Dollar (NT$) amounts have been converted into U.S. Dollars at the June 30, 2025 exchange rate of NT$ 29.28 per U.S. Dollar.

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/20250730821163/en/

Michael Lin / David Wong

UMC, Investor Relations

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

jinhong_lin@umc.com

david_wong@umc.com

UMC Reports Second Quarter 2025 Results