Press Release

UMC Reports Fourth Quarter 2025 Results

Full-year 22nm revenue increases 93% YoY, reaching record high in Q4 2025

2025 earnings per share of NT$3.34

Fourth Quarter 2025 Overview1:


  • Revenue: NT$61.81 billion (US$1.97 billion)
  • Gross margin: 30.7%; Operating margin: 19.8%
  • Revenue from 22/28nm: 36%
  • Capacity utilization rate: 78%
  • Net income attributable to shareholders of the parent: NT$10.06 billion (US$320 million)
  • Earnings per share: NT$0.81; earnings per ADS: US$0.129

TAIPEI, Taiwan–(BUSINESS WIRE)–United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (โ€œUMCโ€ or โ€œThe Companyโ€), a leading global semiconductor foundry, today announced its consolidated operating results for the fourth quarter of 2025.

Fourth quarter consolidated revenue was NT$61.81 billion, increasing 4.5% from NT$59.13 billion in 3Q25. Compared to a year ago, 4Q25 revenue increased 2.4%. Consolidated gross margin for 4Q25 was 30.7%. Net income attributable to the shareholders of the parent was NT$10.06 billion, with earnings per ordinary share of NT$0.81.

Jason Wang, co-president of UMC, said, โ€œIn the fourth quarter, our results were in line with guidance, with flattish wafer shipments amid mild demand across most markets. The 4.5% revenue increase during the quarter was supported by favorable foreign exchange movement as well as sequential growth in our 22/28nm business, which continues to improve our product mix. Within the 22/28nm segment, 22nm revenue increased 31% quarter-on-quarter to a record high, accounting for more than 13% of total fourth-quarter revenue. Looking at the full year, UMC delivered solid performance in 2025, with shipments increasing 12.3% and revenue in US dollars up 5.3% year-on-year.โ€

โ€œGoing into the first quarter of 2026, we expect wafer demand to remain firm. UMC is confident that 2026 will be another growth year as tape-outs on our 22nm platforms accelerate and other new solutions continue to gain business traction.โ€

Co-president Wang added, โ€œWe have been working hard to lay the foundation for our next phase of growth, investing for the future in both capacity and technology. In 2025, we completed the new Phase 3 facility at our Singapore Fab 12i, which is already playing a central role in supporting customers to diversify supply chains. At the same time, we are striving to expand our footprint in the U.S. through innovative yet cost-effective modes of partnerships, such as our 12nm collaboration with Intel and the recently announced MOU with Polar Semiconductor. The leadership UMC has built over the past few years across specialty technologies – including embedded High Voltage, Non-Volatile Memory, and BCD – has and will continue to sustain stable business growth. Looking ahead to 2026 and beyond, we expect advanced packaging and silicon photonics to serve as new growth catalysts, positioning UMC to address the evolving needs of high-performance applications across AI, networking, consumer, automotive and more.โ€

Co-president Wang said, โ€œDuring 2025, UMC also reached important milestones in our sustainability journey. Just last month, we officially inaugurated our Circular Economy and Recycling Innovation Center, an on-site waste recycling facility expected to reduce UMCโ€™s total waste generated by Taiwan fabs by up to one-third. This is an important initiative in our goal to enhance resource recovery and develop circular economy solutions in our industry. In addition, UMC continues to be recognized as a leader in international corporate sustainability benchmarks, including the CDP and MSCI ESG Ratings.โ€

Summary of Operating Results

Operating Results

(Amount: NT$ million)

4Q25

ย 

3Q25

ย 

QoQ %

change

4Q24

ย 

YoY %

change

Operating Revenues

61,810

ย 

59,127

ย 

4.5

ย 

60,386

ย 

2.4

Gross Profit

18,958

ย 

17,623

ย 

7.6

ย 

18,343

ย 

3.4

Operating Expenses

(7,384

)

(6,973

)

5.9

ย 

(6,748

)

9.4

Net Other Operating Income and Expenses

651

ย 

467

ย 

39.3

ย 

362

ย 

79.8

Operating Income

12,225

ย 

11,118

ย 

10.0

ย 

11,957

ย 

2.2

Net Non-Operating Income and Expenses

3,278

ย 

3,526

ย 

(7.0

)

(1,443

)

Net Income Attributable to Shareholders of the Parent

10,055

ย 

14,982

ย 

(32.9

)

8,497

ย 

18.3

EPS (NT$ per share)

0.81

ย 

1.20

ย 

ใ€€

0.68

ย 

ย 

EPS (US$ per ADS)

0.129

ย 

0.197

ย 

ใ€€

0.104

ย 

ย 

Exchange rate (USD/NTD)

31.40

ย 

30.47

ย 

ย 

32.78

ย 

ย 

Note: Sums may not equal totals due to rounding.

Fourth quarter operating revenues grew 4.5% sequentially to NT$61.81 billion. Revenue contribution from 40nm and below technologies represented 53% of wafer revenue. Gross profit increased 7.6% QoQ to NT$18.96 billion, or 30.7% of revenue. Operating expenses increased 5.9% to NT$7.38 billion. Net other operating income increased 39.3% to NT$0.65 billion. Net non-operating income totaled NT$3.28 billion. Net income attributable to shareholders of the parent amounted to NT$10.06 billion.

Earnings per ordinary share for the quarter was NT$0.81. Earnings per ADS was US$0.129. The basic weighted average number of shares outstanding in 4Q25 was 12,487,002,150, compared with 12,485,162,809 shares in 3Q25 and 12,481,192,676 shares in 4Q24. The diluted weighted average number of shares outstanding was 12,594,788,681 in 4Q25, compared with 12,556,345,829 shares in 3Q25 and 12,610,756,874 shares in 4Q24. The fully diluted shares counted on December 31, 2025 were approximately 12,598,993,000.

Detailed Financials Section

Operating revenues increased to NT$61.81 billion. COGS increased 3.2% QoQ to NT$42.85 billion. Gross profit increased 7.6% to NT$18.96 billion. Operating expenses grew 5.9% QoQ to NT$7.38 billion, as G&A increased 8.1% to NT$1.85 billion and R&D increased 6.6% to NT$4.94 billion, while Sales & Marketing decreased 5.3% to NT$0.60 billion. Net other operating income was NT$0.65 billion. In 4Q25, operating income increased 10.0% QoQ to NT$12.23 billion.

COGS & Expenses

(Amount: NT$ million)

4Q25

ย 

3Q25

ย 

QoQ %

change

4Q24

ย 

YoY %

change

Operating Revenues

61,810

ย 

59,127

ย 

4.5

ย 

60,386

ย 

2.4

ย 

COGS

(42,851

)

(41,504

)

3.2

ย 

(42,043

)

1.9

ย 

Depreciation

(12,991

)

(12,635

)

2.8

ย 

(11,841

)

9.7

ย 

Other Mfg. Costs

(29,860

)

(28,869

)

3.4

ย 

(30,202

)

(1.1

)

Gross Profit

18,958

ย 

17,623

ย 

7.6

ย 

18,343

ย 

3.4

ย 

Gross Margin (%)

30.7

%

29.8

%

ใ€€

30.4

%

ใ€€

Operating Expenses

(7,384

)

(6,973

)

5.9

ย 

(6,748

)

9.4

ย 

Sales & Marketing

(595

)

(628

)

(5.3

)

(623

)

(4.6

)

G&A

(1,853

)

(1,715

)

8.1

ย 

(1,791

)

3.5

ย 

R&D

(4,937

)

(4,631

)

6.6

ย 

(4,334

)

13.9

ย 

Expected Credit Impairment Gain

0

ย 

0

ย 

0.0

ย 

0

ย 

(99.5

)

Net Other Operating Income & Expenses

651

ย 

467

ย 

39.3

ย 

362

ย 

79.8

ย 

Operating Income

12,225

ย 

11,118

ย 

10.0

ย 

11,957

ย 

2.2

ย 

Note: Sums may not equal totals due to rounding.

Net non-operating income in 4Q25 was NT$3.28 billion, primarily reflecting the NT$2.81 billion in net investment gain and the NT$0.33 billion in exchange gain.

Non-Operating Income and Expenses

(Amount: NT$ million)

4Q25

3Q25

ย 

4Q24

ย 

Non-Operating Income and Expenses

3,278

3,526

ย 

(1,443

)

Net Interest Income and Expenses

134

88

ย 

290

ย 

Net Investment Gain and Loss

2,812

3,192

ย 

(2,614

)

Exchange Gain and Loss

332

250

ย 

877

ย 

Other Gain and Loss

0

(3

)

4

ย 

Note: Sums may not equal totals due to rounding.

In 4Q25, cash inflow from operating activities was NT$33.00 billion. Cash outflow from investing activities totaled NT$17.06 billion, including NT$15.62 billion in capital expenditures, resulting in free cash flow of NT$17.38 billion. Cash outflow from financing activities was NT$11.42 billion, primarily due to NT$20.89 billion in bank loans, partially offset by NT$9.80 billion in bonds issued. Net cash inflow in 4Q25 amounted to NT$6.44 billion. Over the next 12 months, the company expects to repay NT$12.48 billion in bank loans.

Cash Flow Summary

(Amount: NT$ million)

For the 3-Month Period Ended

Dec. 31, 2025

For the 3-Month Period Ended

Sep. 30, 2025

Cash Flow from Operating Activities

33,003

ย 

20,938

ย 

Net income before tax

15,503

ย 

14,644

ย 

Depreciation & Amortization

15,630

ย 

14,995

ย 

Share of profit of associates and joint ventures

(929

)

(1,250

)

Income tax paid

(301

)

(3,341

)

Changes in working capital & others

3,100

ย 

(4,110

)

Cash Flow from Investing Activities

(17,059

)

(16,152

)

Increase in financial assets measured at amortized cost

(3,074

)

(4,043

)

Acquisition of PP&E

(14,826

)

(11,223

)

Acquisition of intangible assets

(667

)

(948

)

Others

1,508

ย 

62

ย 

Cash Flow from Financing Activities

(11,416

)

(15,160

)

Bank loans

(20,885

)

15,874

ย 

Bonds issued

9,800

ย 

5,000

ย 

Cash dividends

ย 

(35,788

)

Others

(331

)

(246

)

Effect of Exchange Rate

1,915

ย 

2,597

ย 

Net Cash Flow

6,443

ย 

(7,777

)

Beginning balance

104,217

ย 

111,994

ย 

Ending balance

110,660

ย 

104,217

ย 

Note: Sums may not equal totals due to rounding.

Cash and cash equivalents increased to NT$110.66 billion. Days sales outstanding decreased 3 days to 47 days, while days of inventory increased 1 day to 77 days.

Current Assets

(Amount: NT$ billion)

4Q25

3Q25

4Q24

Cash and Cash Equivalents

110.66

104.22

105.00

Accounts Receivable

31.27

32.25

33.34

Days Sales Outstanding

47

50

51

Inventories, net

37.23

35.18

35.78

Days of Inventory

77

76

80

Total Current Assets

204.78

192.85

189.68

Current liabilities increased to NT$88.90 billion. Long-term credit / bonds decreased to NT$45.37 billion. Total liabilities increased to NT$199.14 billion, while debt to equity ratio decreased to 52%.

Liabilities

(Amount: NT$ billion)

4Q25

ย 

3Q25

ย 

4Q24

ย 

Total Current Liabilities

88.90

ย 

82.28

ย 

75.26

ย 

Accounts Payable

9.17

ย 

8.04

ย 

7.63

ย 

Short-Term Credit / Bonds

27.60

ย 

30.15

ย 

19.51

ย 

Payables on Equipment

11.68

ย 

11.57

ย 

10.52

ย 

Other

40.45

ย 

32.52

ย 

37.60

ย 

Long-Term Credit / Bonds

45.37

ย 

53.76

ย 

55.53

ย 

Total Liabilities

199.14

ย 

194.20

ย 

192.02

ย 

Debt to Equity

52

%

54

%

51

%

Analysis of Revenue2

Revenue from Asia Pacific increased to 64%, while business from North America decreased to 21% of sales. Business from Europe increased to 11%, while contribution from Japan was 4%.

Revenue Breakdown by Region

Region

4Q25

ย 

3Q25

ย 

2Q25

ย 

1Q25

ย 

4Q24

ย 

North America

21

%

25

%

20

%

22

%

25

%

Asia Pacific

64

%

63

%

67

%

66

%

61

%

Europe

11

%

8

%

8

%

7

%

11

%

Japan

4

%

4

%

5

%

5

%

3

%

Revenue contribution from 22/28nm was increased to 36% of wafer revenue, while 40nm contribution remained at 17% of sales.

Revenue Breakdown by Geometry

Geometry

4Q25

ย 

3Q25

ย 

2Q25

ย 

1Q25

ย 

4Q24

ย 

14nm and below

0

%

0

%

0

%

0

%

0

%

14nm<x<=28nm

36

%

35

%

40

%

37

%

34

%

28nm<x<=40nm

17

%

17

%

15

%

16

%

16

%

40nm<x<=65nm

17

%

18

%

17

%

16

%

16

%

65nm<x<=90nm

8

%

8

%

7

%

8

%

11

%

90nm<x<=0.13um

7

%

8

%

7

%

7

%

10

%

0.13um<x<=0.18um

10

%

9

%

9

%

10

%

9

%

0.18um<x<=0.35um

4

%

4

%

4

%

5

%

4

%

0.5um and above

1

%

1

%

1

%

1

%

0

%

Revenue from fabless customers accounted for 80% of revenue.

Revenue Breakdown by Customer Type

Customer Type

4Q25

ย 

3Q25

ย 

2Q25

ย 

1Q25

ย 

4Q24

ย 

Fabless

80

%

81

%

81

%

82

%

84

%

IDM

20

%

19

%

19

%

18

%

16

%

Revenue from the communication segment accounted for 42%, while business from computer applications was 12% of sales. Business from consumer applications accounted for 28%, while other segments was 18% of revenue.

Revenue Breakdown by Application (1)

Application

4Q25

ย 

3Q25

ย 

2Q25

ย 

1Q25

ย 

4Q24

ย 

Computer

12

%

12

%

11

%

11

%

13

%

Communication

42

%

42

%

41

%

40

%

39

%

Consumer

28

%

29

%

33

%

34

%

29

%

Others

18

%

17

%

15

%

15

%

19

%

(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 4Q25 ASP)

Shipment and Utilization Rate3

Wafer shipments decreased 0.6% QoQ to 994K during the fourth quarter, while quarterly capacity was 1,305K. Overall utilization rate in 4Q25 was 78%.

Wafer Shipments

ย 

ย 

4Q25

ย 

3Q25

ย 

2Q25

ย 

1Q25

ย 

4Q24

Wafer Shipments

(12โ€ K equivalents)

ย 

994

ย 

1,000

ย 

967

ย 

910

ย 

909

Quarterly Capacity Utilization Rate

ย 

ย 

4Q25

ย 

3Q25

ย 

2Q25

ย 

1Q25

ย 

4Q24

Utilization Rate

ย 

78%

ย 

78%

ย 

76%

ย 

69%

ย 

70%

Total Capacity

(12โ€ K equivalents)

ย 

1,305

ย 

1,305

ย 

1,290

ย 

1,264

ย 

1,280

Capacity4

Total capacity in the fourth quarter was 1,305K 12-inch equivalent wafers. Capacity will decrease to 1,283K 12-inch equivalent wafers in the first quarter of 2026, reflecting the annual production maintenance across 8-inch and 12-inch facilities.

Annual Capacity in

thousands of wafers

ย 

Quarterly Capacity in

thousands of wafers

FAB

Geometry

(um)

2025

ย 

2024

ย 

2023

ย 

2022

ย 

ย 

FAB

1Q26E

4Q25

3Q25

2Q25

WTK

6″

5 โ€“ 0.15

317

ย 

331

ย 

328

ย 

335

ย 

ย 

WTK

6″

78

80

80

80

8A

8″

3 โ€“ 0.11

857

ย 

829

ย 

811

ย 

765

ย 

ย 

8A

8″

212

215

215

215

8C

8″

0.35 โ€“ 0.11

500

ย 

477

ย 

473

ย 

459

ย 

ย 

8C

8″

123

125

125

125

8D

8″

0.18 โ€“ 0.11

471

ย 

473

ย 

440

ย 

410

ย 

ย 

8D

8″

116

118

118

118

8E

8″

0.6 โ€“ 0.11

522

ย 

524

ย 

490

ย 

469

ย 

ย 

8E

8″

129

131

131

131

8F

8″

0.18 โ€“ 0.11

583

ย 

578

ย 

570

ย 

550

ย 

ย 

8F

8″

144

146

146

146

8S

8″

0.18 โ€“ 0.11

466

ย 

455

ย 

447

ย 

443

ย 

ย 

8S

8″

115

117

117

117

8N

8″

0.5 โ€“ 0.11

996

ย 

1,013

ย 

996

ย 

952

ย 

ย 

8N

8″

246

250

250

250

12A

12″

0.13 โ€“ 0.014

1,629

ย 

1,556

ย 

1,305

ย 

1,170

ย 

ย 

12A

12″

402

409

409

409

12i

12″

0.13 โ€“ 0.040

684

ย 

678

ย 

655

ย 

655

ย 

ย 

12i

12″

169

172

172

172

12X

12″

0.080 โ€“ 0.022

347

ย 

318

ย 

317

ย 

314

ย 

ย 

12X

12″

93

95

95

80

12M

12″

0.13 โ€“ 0.040

471

ย 

455

ย 

438

ย 

436

ย 

ย 

12M

12″

117

119

119

119

Total(1)

5,163

ย 

5,022

ย 

4,674

ย 

4,458

ย 

ย 

Total

1,283

1,305

1,305

1,290

YoY Growth Rate

3

%

7

%

5

%

6

%

ย 

ย 

ย 

ย 

ย 

ย 

(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 4Q25 totaled US$501 million as 2025 CAPEX amounted to US$1.6 billion. 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

Brief Summary of Full Year 2025 Consolidated Results

  • Consolidated revenue in NTD increased 2.3% YoY to NT$237.55 billion, from NT$232.30 billion in 2024.
  • Gross profit decreased 8.9%, compared to a year ago, representing 29.0% of 2025 revenue.
  • Operating income decreased 14.8% year-on-year, accounting for 18.5% of 2025 revenue.
  • Net income attributable to shareholders of the parent decreased 11.6% to NT$41.72 billion in 2025.
  • EPS was NT$3.34, or EPADS of US$0.532 for 2025.
  • 22/28nm revenue contribution accounted for 37% in 2025.

Operating Results

(Amount: NT$ million)

2025

ย 

2024

ย 

YoY %

change

Operating Revenues

237,553

ย 

232,303

ย 

2.3

ย 

Gross Profit

68,906

ย 

75,654

ย 

(8.9

)

Operating Expenses

(26,948

)

(25,365

)

6.2

ย 

Net Other Operating Income and Expenses

1,990

ย 

1,324

ย 

50.3

ย 

Operating Income

43,949

ย 

51,613

ย 

(14.8

)

Net Non-Operating Income and Expenses

5,699

ย 

4,607

ย 

23.7

ย 

Income Tax Expense

(8,113

)

(9,114

)

(11.0

)

Net Income Attributable to Shareholders of the Parent

41,716

ย 

47,211

ย 

(11.6

)

EPS (NT$ per share)

3.34

ย 

3.80

ย 

ย 

EPS (US$ per ADS)

0.532

ย 

0.580

ย 

ย 

Exchange rate (USD/NTD)

31.40

ย 

32.78

ย 

ย 

Annual Sales Breakdown in Revenue for Foundry Segment

Region

2025

ย 

2024

ย 

North America

22

%

25

%

Asia Pacific

65

%

63

%

Europe

9

%

8

%

Japan

4

%

4

%

ย 

ย 

ย 

Technology

2025

ย 

2024

ย 

14nm and below

0

%

0

%

14nm<x<=28nm

37

%

34

%

28nm<x<=40nm

16

%

14

%

40nm<x<=65nm

17

%

16

%

65nm<x<=90nm

8

%

11

%

90nm<x<=0.13um

7

%

10

%

0.13um<x<=0.18um

10

%

10

%

0.18um<x<=0.35um

4

%

4

%

0.5um and above

1

%

1

%

ย 

ย 

ย 

Customer Type

2025

ย 

2024

ย 

Fabless

81

%

84

%

IDM

19

%

16

%

ย 

ย 

ย 

Application

2025

ย 

2024

ย 

Computer

12

%

14

%

Communication

41

%

42

%

Consumer

31

%

28

%

Others

16

%

16

%

First Quarter 2026 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
  • 2026 CAPEX: US$1.5 billion

Recent Developments / Announcements

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Dec. 03, 2025

UMC Honors 16 Suppliers for Outstanding Carbon Reduction Achievements

Dec. 04, 2025

UMC and Polar Collaborate to Meet Growing Demand for U.S. Onshore Semiconductor Manufacturing

Dec. 08, 2025

UMC Licenses imecโ€™s iSiPP300 Technology to Extend Silicon Photonics Capabilities for Next-Generation Connectivity

Dec. 10, 2025

UMC Inaugurates the Circular Economy & Recycling Innovation Center

Dec. 15, 2025

UMC Awarded Top Climate and Water Ratings by CDP for 4th Consecutive Year

Jan. 14, 2026

UMC Awarded AA Score in MSCI ESG Ratings for the Third Consecutive Year

Jan. 16, 2026

SST and UMC Announce Immediate Availability of 28nm SuperFlashยฎ Gen 4 Automotive Grade 1 Platform

Please visit UMCโ€™s website for further details regarding the above announcements

Conference Call / Webcast Announcement

Wednesday, January 28, 2026

Time: 5:00 PM (Taipei) / 4:00 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

ย 

Access Code:

1513528#

A live webcast and replay of the 4Q25 results announcement will be available at www.umc.com under the โ€œInvestors / Eventsโ€ 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. UMCโ€™s comprehensive IC processing technologies and manufacturing solutions include Logic/Mixed-Signal, embedded High-Voltage, embedded Non-Volatile-Memory, RFSOI, BCD etc. Most of UMCโ€™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 fourth 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 โ€œFirst Quarter 2026 Outlook and Guidance.โ€

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 UMCโ€™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 December 31, 2025
Figures in Millions of New Taiwan Dollars (NT$) and U.S. Dollars (US$)
ย  ย  ย 
ย  ย  ย 
ย  December 31, 2025
ย  US$ ย  NT$ ย  %
Assets ย  ย  ย 
Current assets ย  ย  ย 
Cash and cash equivalents ย 

3,524

ย 

110,660

ย 

19.1%

Accounts receivable, net ย 

996

ย 

31,274

ย 

5.4%

Inventories, net ย 

1,186

ย 

37,228

ย 

6.4%

Other current assets ย 

816

ย 

25,621

ย 

4.4%

Total current assets ย 

6,522

ย 

204,783

ย 

35.4%

ย  ย  ย 
Non-current assets ย  ย  ย 
Funds and investments ย 

2,400

ย 

75,373

ย 

13.0%

Property, plant and equipment ย 

8,643

ย 

271,395

ย 

46.9%

Right-of-use assets ย 

238

ย 

7,476

ย 

1.3%

Other non-current assets ย 

636

ย 

19,969

ย 

3.5%

Total non-current assets ย 

11,918

ย 

374,213

ย 

64.6%

Total assets ย 

18,439

ย 

578,996

ย 

100.0%

ย  ย  ย 
Liabilities ย  ย  ย 
Current liabilities ย  ย  ย 
Short-term loans ย 

268

ย 

8,409

ย 

1.5%

Payables ย 

1,557

ย 

48,880

ย 

8.4%

Current portion of long-term liabilities ย 

611

ย 

19,188

ย 

3.3%

Other current liabilities ย 

396

ย 

12,420

ย 

2.2%

Total current liabilities ย 

2,831

ย 

88,896

ย 

15.4%

ย  ย  ย 
Non-current liabilities ย  ย  ย 
Bonds payable ย 

1,085

ย 

34,071

ย 

5.9%

Long-term loans ย 

360

ย 

11,301

ย 

2.0%

Lease liabilities, noncurrent ย 

171

ย 

5,376

ย 

0.9%

Other non-current liabilities ย 

1,895

ย 

59,496

ย 

10.3%

Total non-current liabilities ย 

3,511

ย 

110,244

ย 

19.0%

Total liabilities ย 

6,342

ย 

199,141

ย 

34.4%

ย  ย  ย 
Equity ย  ย  ย 
Equity attributable to the parent company ย  ย  ย 
Capital ย 

4,009

ย 

125,882

ย 

21.7%

Additional paid-in capital ย 

491

ย 

15,410

ย 

2.7%

Retained earnings and other components of equity ย 

7,595

ย 

238,477

ย 

41.2%

Total equity attributable to the parent company ย 

12,095

ย 

379,768

ย 

65.6%

Non-controlling interests ย 

3

ย 

87

ย 

0.0%

Total equity ย 

12,097

ย 

379,855

ย 

65.6%

Total liabilities and equity ย 

18,439

ย 

578,996

ย 

100.0%

ย ย  ย  ย  ย 
ย ย  ย  ย  ย 
Notes: ย  ย  ย 
(1) New Taiwan Dollars have been translated into U.S. Dollars at the December 31, 2025 exchange rate of NT $31.40 per U.S. Dollar.
(2) Sums may not equal totals due to rounding.
UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES
Consolidated Condensed Statements of Comprehensive Income
Figures in Millions of New Taiwan Dollars (NT$) and U.S. Dollars (US$)
Except Per Share and Per ADS Data
ย  ย 
ย  ย 
ย  Year over Year Comparison Quarter over Quarter Comparison
ย  Three-Month Period Ended Three-Month Period Ended
ย  December 31, 2025 December 31, 2024 Chg. December 31, 2025 September 30, 2025 Chg.
ย  US$ NT$ NT$ % US$ NT$ NT$ %
Operating revenues ย 

1,968

ย 

61,810

ย 

60,386

ย 

2.4

%

1,968

ย 

61,810

ย 

59,127

ย 

4.5

%

Operating costs ย 

(1,365

)

(42,851

)

(42,043

)

1.9

%

(1,365

)

(42,851

)

(41,504

)

3.2

%

Gross profit ย 

604

ย 

18,958

ย 

18,343

ย 

3.4

%

604

ย 

18,958

ย 

17,623

ย 

7.6

%

ย 

30.7

%

30.7

%

30.4

%

30.7

%

30.7

%

29.8

%

Operating expenses ย 
– Sales and marketing expenses ย 

(19

)

(595

)

(623

)

(4.6

%)

(19

)

(595

)

(628

)

(5.3

%)

– General and administrative expenses ย 

(59

)

(1,853

)

(1,791

)

3.5

%

(59

)

(1,853

)

(1,715

)

8.1

%

– Research and development expenses ย 

(157

)

(4,937

)

(4,334

)

13.9

%

(157

)

(4,937

)

(4,631

)

6.6

%

– Expected credit impairment gain ย 

0

ย 

0

ย 

0

ย 

(99.5

%)

0

ย 

0

ย 

0

ย 

0.0

%

Subtotal ย 

(235

)

(7,384

)

(6,748

)

9.4

%

(235

)

(7,384

)

(6,973

)

5.9

%

Net other operating income and expenses ย 

21

ย 

651

ย 

362

ย 

79.8

%

21

ย 

651

ย 

467

ย 

39.3

%

Operating income ย 

389

ย 

12,225

ย 

11,957

ย 

2.2

%

389

ย 

12,225

ย 

11,118

ย 

10.0

%

ย 

19.8

%

19.8

%

19.8

%

19.8

%

19.8

%

18.8

%

ย  ย 
Net non-operating income and expenses ย 

104

ย 

3,278

ย 

(1,443

)

ย 

104

ย 

3,278

ย 

3,526

ย 

(7.0

%)

Income from continuing operations
before income tax
ย 

494

ย 

15,503

ย 

10,514

ย 

47.4

%

494

ย 

15,503

ย 

14,644

ย 

5.9

%

ย 

25.1

%

25.1

%

17.4

%

25.1

%

25.1

%

24.8

%

ย  ย 
Income tax benefit (expense) ย 

(175

)

(5,504

)

(2,054

)

167.9

%

(175

)

(5,504

)

300

ย 

ย 

Net income ย 

318

ย 

9,999

ย 

8,460

ย 

18.2

%

318

ย 

9,999

ย 

14,944

ย 

(33.1

%)

ย 

16.2

%

16.2

%

14.0

%

16.2

%

16.2

%

25.3

%

ย  ย 
Other comprehensive income (loss) ย 

278

ย 

8,721

ย 

1,270

ย 

586.4

%

278

ย 

8,721

ย 

9,005

ย 

(3.2

%)

ย  ย 
Total comprehensive income (loss) ย 

596

ย 

18,720

ย 

9,730

ย 

92.4

%

596

ย 

18,720

ย 

23,949

ย 

(21.8

%)

ย  ย 
Net income attributable to: ย 
ใ€€ใ€€Shareholders of the parent ย 

320

ย 

10,055

ย 

8,497

ย 

18.3

%

320

ย 

10,055

ย 

14,982

ย 

(32.9

%)

ใ€€ใ€€Non-controlling interests ย 

(2

)

(56

)

(37

)

50.7

%

(2

)

(56

)

(38

)

46.9

%

ย  ย 
Comprehensive income (loss) attributable to: ย 
ใ€€ใ€€Shareholders of the parent ย 

598

ย 

18,776

ย 

9,767

ย 

92.2

%

598

ย 

18,776

ย 

23,987

ย 

(21.7

%)

ใ€€ใ€€Non-controlling interests ย 

(2

)

(56

)

(37

)

50.5

%

(2

)

(56

)

(38

)

47.0

%

ย  ย 
Earnings per share-basic ย 

0.026

ย 

0.81

ย 

0.68

ย 

0.026

ย 

0.81

ย 

1.20

ย 

Earnings per ADS (2) ย 

0.129

ย 

4.05

ย 

3.40

ย 

0.129

ย 

4.05

ย 

6.00

ย 

Weighted average number of shares ย 
outstanding (in millions) ย 

12,487

ย 

12,481

ย 

12,487

ย 

12,485

ย 

ย  ย 
ย  ย  ย 
Notes: ย 
(1) New Taiwan Dollars have been translated into U.S. Dollars at the December 31, 2025 exchange rate of NT $31.40 per U.S. Dollar.
(2) 1 ADS equals 5 common shares.
(3) Sums may not equal totals due to rounding.

Contacts

Michael Lin / David Wong

UMC, Investor Relations
+ 886-2-2658-9168, ext. 16900

[email protected]
[email protected]

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