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Exhibit

Exhibit Description

 

99.1 Announcement on 2025/08/06: July Revenue

 

 

 

 


 

Exhibit 99.1

United Microelectronics Corporation

August 6, 2025

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 2025.

 

1)
Sales volume (NT$ Thousand)

Period

Items

2025

2024

Changes

%

July

Net sales

20,040,049

20,896,877

(856,828)

(4.10)%

Year-to-Date

Net sales

136,656,663

132,328,266

4,328,397

3.27%

 

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

 

3)
Endorsements and guarantees (NT$ Thousand)

Balance as of period end

This Month

(actual amount provided)

Last Month

(actual amount provided)

Limit of lending

UMC

3,518,325

5,804,820

151,592,175

Note: On February 22, 2017, March 7, 2018, October 24, 2018, July 24,2019, December 18, 2019, July 29, 2020, October 29, 2020, December 16, 2020, July 28, 2021, October 27, 2021, December 15, 2021, April 27, 2022, October 26, 2022, December 14, 2022, April 26, 2023, July 26, 2023, December 13, 2023, February 27, 2024 ,July 31, 2024, December 18, 2024, February 26, 2025 and July 30, 2025, the board of directors resolved to provide endorsement to USC(Xiamen)’s syndicated loan from banks for the amount up to CNY¥ 855 million.

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

863,040

0

  Fair Value

0

0

(14,623)

0

  Net profit (loss) from Fair Value

0

0

(13,586)

0

  Written-off Trading

 

 

 

 

  Contracts

0

0

3,630,137

0

  Realized profit (loss)

0

0

23,059

0