联电8月营收同比增长30.71%，但基本落在三季度复苏路径内

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6-K
1
6k_on_09042026.htm
6-K
6-K
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
September 4, 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: September 4, 2026
2
EXHIBIT INDEX
Exhibit
Description
99
6K on 09/04/2026
3

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EX-99
2
umc-ex99.htm
EX-99
EX-99
www.umc.com
Exhibit
Exhibit
Description
99.1 Announcement on 2026/09/03: UMC will attend investor conferences on 2026/09/10
99.2 Announcement on 2026/09/03: UMC will attend investor conferences on 2026/09/14~2026/09/15
99.3 Announcement on 2026/09/04: August Revenue
Exhibit 99.1
UMC will attend investor conferences on 2026/09/10
1. Date of institutional investor conference: 2026/09/10
2. Time of institutional investor conference: 09:30 PM
3. Location of institutional investor conference: New York Hilton Midtown
4. Outline of institutional investor conference:
The Company will attend the “2026 GEMs Conference”, held by Citi.
5. Any other matters that need to be specified: None
Exhibit 99.2
UMC will attend investor conferences on 2026/09/14~2026/09/15
1. Date of institutional investor conference: 2026/09/14~2026/09/15
2. Time of institutional investor conference: 09:00 AM
3. Location of institutional investor conference: W Hotel Taipei
4. Outline of institutional investor conference:
The Company will attend the “Taiwan Summit 2026”, held by UBS.
5. Any other matters that need to be specified: None
Exhibit 99.3
United Microelectronics Corporation
September 4, 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 August 2026.
1)
Sales volume (NT$ Thousand)
Period
Items
2026
2025
Changes
%
August
Net sales
25,044,641
19,159,816
5,884,825
30.71%
Year-to-Date
Net sales
178,659,250
155,816,479
22,842,771
14.66%
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
1,138,320
0
Fair Value
0
0
9,719
0
Net profit (loss) from Fair Value
0
0
10,372
0
Written-off Trading
Contracts
0
0
9,159,030
0
Realized profit (loss)
0
0
(33,746)
0