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United Microelectronics (NYSE: UMC) July 2026 sales rise 18.98% year over year

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
6-K

Rhea-AI Filing Summary

United Microelectronics Corporation reported July 2026 net sales of 23,844,045 NT$ thousand, an 18.98% increase from July 2025. Year-to-date 2026 net sales were 153,614,609 NT$ thousand, up 12.41% from the same period in 2025.

The company reported no funds lent to other parties and no endorsements or guarantees in July 2026. Financial derivative transactions not designated as hedges consisted of interest rate swaps with 903,000 NT$ thousand in unwritten-off trading contracts, a fair value of (3,179) NT$ thousand, and realized losses of (35,898) NT$ thousand on written-off contracts.

Positive

  • July 2026 net sales increased 18.98% year over year to 23,844,045 NT$ thousand, with year-to-date 2026 sales up 12.41% to 153,614,609 NT$ thousand compared with the same period in 2025.

Negative

  • None.
July 2026 net sales 23,844,045 NT$ thousand Net sales for July 2026
July 2025 net sales 20,040,049 NT$ thousand Net sales for July 2025
July year-over-year change 18.98% Percentage increase in net sales, July 2026 vs July 2025
Year-to-date 2026 net sales 153,614,609 NT$ thousand Cumulative net sales for 2026 year-to-date
Year-to-date 2025 net sales 136,656,663 NT$ thousand Cumulative net sales for 2025 comparable period
Year-to-date net sales change 12.41% Increase in year-to-date 2026 net sales vs 2025
IRS unwritten-off trading contracts 903,000 NT$ thousand Notional of interest rate swap contracts outstanding
Realized loss on IRS written-off contracts (35,898) NT$ thousand Realized profit (loss) on written-off trading contracts
Funds lent to other parties financial
"This is to report the changes or status of 2) Funds lent to other parties"
Endorsements and guarantees financial
"This is to report the changes or status of 3) Endorsements and guarantees"
Financial derivative transactions financial
"This is to report the changes or status of 4) Financial derivative transactions"
Unwritten-off Trading Contracts financial
"Unwritten-off Trading Contracts | 0 | 0 | 903,000 | 0"
Fair Value financial
"Fair Value | 0 | 0 | (3,179) | 0"
Fair value is an estimate of what an asset or company is really worth today, derived from expected future earnings, comparable market prices and other relevant facts—like agreeing a price for a used car after checking mileage, condition and similar listings. Investors use fair value to decide whether a stock looks overpriced or undervalued, which helps guide buy, hold or sell decisions and sets expectations for potential returns and risk.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

How much were UMC (UMC) net sales in July 2026?
UMC reported July 2026 net sales of 23,844,045 NT$ thousand. This compares with 20,040,049 NT$ thousand in July 2025, representing an 18.98% year-over-year increase in monthly net sales volume.

What are the year-to-date 2026 net sales for UMC (UMC)?
Year-to-date 2026 net sales for UMC were 153,614,609 NT$ thousand. This is up from 136,656,663 NT$ thousand for the same period in 2025, an increase of 12.41% in cumulative net sales.

Did UMC (UMC) lend funds to other parties in July 2026?
No, UMC reported no funds lent to other parties in July 2026. The disclosure explicitly states that funds lent to other parties for the period, measured in NT$ thousand, were "None."

Did UMC (UMC) provide endorsements or guarantees in July 2026?
UMC reported no endorsements and guarantees outstanding in July 2026. The company stated that endorsements and guarantees for the period, in NT$ thousand, were "None," indicating no such off-balance-sheet commitments.

What financial derivative transactions did UMC (UMC) report for July 2026?
UMC reported interest rate swap contracts not under hedge accounting with unwritten-off trading contracts of 903,000 NT$ thousand, a fair value of (3,179) NT$ thousand, net fair value loss of (2,525) NT$ thousand, and realized losses of (35,898) NT$ thousand on written-off contracts.

How did UMC (UMC) July 2026 sales compare with July 2025?
July 2026 net sales of 23,844,045 NT$ thousand exceeded July 2025 net sales of 20,040,049 NT$ thousand. The difference of 3,803,996 NT$ thousand represents an 18.98% year-over-year increase in monthly net sales.

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

OF THE SECURITIES EXCHANGE ACT OF 1934

August 6, 2026

(Commission File Number: 001-15128)

United Microelectronics Corporation

(Translation of registrant’s name into English)

No. 3 Li-Hsin 2nd Road,

Hsinchu Science Park,

Hsinchu, Taiwan, R.O.C.

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F Form 40-F

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101 (b) (1):

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101 (b) (7):

 

 

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereto duly authorized.

 

United Microelectronics Corporation

 

 

 

By:

Chitung Liu

Name:

Chitung Liu

Title:

CFO

Date: August 6, 2026

 

 

2

 

 

EXHIBIT INDEX

Exhibit

 

Description

 

99.1

 

 

6K on 08/06/2026

 

3

 

img208044986_0.jpg www.umc.com

Exhibit

Exhibit Description

 

99.1 Announcement on 2026/08/06: July Revenue

 

 

 

 

 

Exhibit 99.1

United Microelectronics Corporation

August 6, 2026

This is to report the changes or status of 1) Sales volume, 2) Funds lent to other parties, 3) Endorsements and guarantees, and 4) Financial derivative transactions for the period of July 2026.

 

1)
Sales volume (NT$ Thousand)

Period

Items

2026

2025

Changes

%

July

Net sales

23,844,045

20,040,049

3,803,996

18.98%

Year-to-Date

Net sales

153,614,609

136,656,663

16,957,946

12.41%

 

2)
Funds lent to other parties (NT$ Thousand): None

 

3)
Endorsements and guarantees (NT$ Thousand): None

 

4)
Financial derivatives transactions:

a Not under hedging accounting: NT$ thousand

UMC

  Financial instruments

Option

Forwards

IRS

Put

Call

  Deposit Paid

0

0

0

0

  Royalty Income (Paid)

0

0

0

0

  Unwritten-off Trading

 

 

 

 

  Contracts

0

0

903,000

0

  Fair Value

0

0

(3,179)

0

  Net profit (loss) from Fair Value

0

0

(2,525)

0

  Written-off Trading

 

 

 

 

  Contracts

0

0

8,514,570

0

  Realized profit (loss)

0

0

(35,898)

0

 

 

Source: View Original Filing on SEC EDGAR

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