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United Microelectronics (NYSE: UMC) readies 0% overseas convertible bond for factory equipment spend

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

Rhea-AI Filing Summary

UNITED MICROELECTRONICS CORP (UMC) reports that its board has approved the issuance of the 7th Unsecured Overseas Convertible Bonds, with a total issue size of up to US$1.8 billion. The bonds are tentatively planned to be issued at 100% of face value, carry a 0% coupon, and have a maturity of up to five years. Each bond will have a denomination of US$200,000 or integral multiples of US$100,000 above that amount. The offering will be conducted outside the Republic of China and is subject to approval by the Securities and Futures Bureau of the Financial Supervisory Commission. Proceeds are planned for purchasing machinery, equipment and facilities. Conversion, sell-back, buyback and related pricing and structural terms, including the split between tranche A and tranche B within the US$1.8 billion cap, will be set later by the chairman or a designee based on market conditions, with further announcements to follow.

Positive

  • None.

Negative

  • None.
Total amount issued Up to US$1.8 billion Maximum aggregate principal amount of 7th Unsecured Overseas Convertible Bonds
Denomination per bond US$200,000 Each bond has a denomination of US$200,000 or an integral multiple of US$100,000 above that
Integral multiple US$100,000 Increment above US$200,000 denomination for each bond
Issue price 100% of face value Tentative issue price of the convertible bonds
Issuance period No more than five years Tentative maturity period of the bonds
Coupon rate 0% Tentative interest rate on the 7th Unsecured Overseas Convertible Bonds
Issue number 7th Unsecured Overseas Convertible Bonds Designation of this overseas convertible bond series by UMC
Regulatory approval Securities and Futures Bureau, Financial Supervisory Commission Issuance is subject to approval by this authority
Unsecured Overseas Convertible Bonds financial
"United Microelectronics Corporation 7th Unsecured Overseas Convertible Bonds"
shelf registration regulatory
"Whether to adopt shelf registration (Yes/No): No"
Shelf registration is when a company gets permission ahead of time to sell new stocks or bonds over a period of time instead of all at once. It matters to investors because it lets a company raise money quickly when needed, but it can also change the value of existing shares if many new ones are sold.
coupon rate financial
"Coupon rate: Tentatively 0%"
The coupon rate is the annual interest percentage a bond or similar debt security promises to pay, calculated on its face value and usually delivered in regular payments like a steady paycheck. For investors it shows the expected income from holding the bond and helps compare returns across investments; it also affects a bond’s market price because higher or lower prevailing interest rates make that fixed payment more or less attractive.
tranche financial
"The issuance of the Bonds includes tranche A and tranche B"
A tranche is one slice of a larger financing or investment that is released, sold, or paid out in separate parts rather than all at once. Investors care because each slice can carry different risk, return and timing—like buying pieces of a cake where some slices are richer or come later—so the specific tranche you hold affects when you get paid and how much you might gain or lose.
over subscription financial
"up to US$ 1.8 billion (including over subscription numbers)"
Financial Supervisory Commission regulatory
"subjected to the approval of Securities and Futures Bureau, Financial Supervisory Commission"
An independent government agency that oversees banks, brokers, insurance companies and securities markets to make sure they follow rules, stay stable and treat customers fairly. Think of it as a referee or traffic controller for the financial system: its decisions on licensing, investigations, fines and rule changes can affect company costs, investor protections and market confidence, so investors watch it closely for risks and policy shifts that can move prices.
Offering Type secondary
Use of Proceeds Purchasing machinery, equipment and facility

FAQ

What did UMC (UMC) announce regarding new financing on August 26, 2026?
UMC’s board approved issuing its 7th Unsecured Overseas Convertible Bonds with a total size of up to US$1.8 billion. The bonds will be offered outside the Republic of China and remain subject to approval by the Securities and Futures Bureau of the Financial Supervisory Commission.

What are the key terms of UMC’s new 7th Unsecured Overseas Convertible Bonds?
The bonds have a total size of up to US$1.8 billion, tentative 0% coupon, maturity of up to five years, and are expected to be issued at 100% of face value. Each bond has a denomination of US$200,000 or integral multiples of US$100,000 above that.

How will UMC (UMC) use the proceeds from the planned convertible bond issuance?
UMC states that funds raised from the 7th Unsecured Overseas Convertible Bonds will be used for purchasing machinery, equipment and facility, indicating a focus on capital expenditure for production and infrastructure.

Are the terms of UMC’s new convertible bonds, including conversion rules, finalized?
No. UMC’s chairman or a designee is authorized to set key terms, including conversion rules, sell-back and buyback conditions, pricing, and tranche allocations, based on market conditions, with additional announcements to be made when these terms are finalized.

What tranches are included in UMC’s 7th Unsecured Overseas Convertible Bonds offering?
The issuance may include tranche A and tranche B, together totaling up to US$1.8 billion (including over-subscriptions). UMC may issue either tranche A, tranche B, or a combination of both within the overall cap.

Is UMC’s new bond issuance using a shelf registration?
No. UMC specifies that the 7th Unsecured Overseas Convertible Bonds will not use a shelf registration. The bonds will be publicly offered outside the Republic of China in line with regulations in the jurisdictions where they are sold.

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

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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 26, 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 26, 2026

 

 

2

 

 

EXHIBIT INDEX

Exhibit

 

Description

 

99.1

 

 

6K on 08/26/2026

 

3

 

img208044986_0.jpg www.umc.com

Exhibit

Exhibit Description

 

99.1 Announcement on 2026/08/26: The Board of Directors resolved to issue the 7th Unsecured Overseas Convertible Bonds

 

 

 

 

Exhibit 99.1

The Board of Directors resolved to issue the 7th Unsecured Overseas Convertible Bonds

1. Date of the board of directors’ resolution: 2026/08/26

2. Name [issue no.__ of (secured, unsecured) corporate bonds of ___________ (company)]:

United Microelectronics Corporation 7th Unsecured Overseas Convertible Bonds

3. Whether to adopt shelf registration (Yes/No): No

4. Total amount issued: Up to US$1.8 billion

5. Face value per bond: Each Bond has a denomination of US$200,000 or an integral multiple of US$100,000 in excess of US$200,000

6. Issue price: Tentatively set at 100% of face value

7. Issuance period: Tentatively no more than five years

8. Coupon rate: Tentatively 0%

9. Types, names, monetary values and stipulations of collaterals: N/A

10. Use of the funds raised by the offering and utilization plan: purchasing machinery, equipment and facility.

11. Underwriting method: The Bonds will be publicly offered outside the Republic of China (the “ROC”) in accordance with the relevant regulations of the jurisdictions where the Bonds are to be sold and international market practice.

12. Trustees of the corporate bonds: To be determined

13. Underwriter or agent: To be determined

14. Guarantor(s) for the issuance: N/A

15. Agent for payment of the principal and interest: To be determined

16. Certifying institution: N/A

17. Where convertible into shares, the rules for conversion:

the UMC Chairman or his designee is authorized to determine according to the market situation

18. Sell-back conditions: the UMC Chairman or his designee is authorized to determine according to the market situation

19. Buyback conditions: the UMC Chairman or his designee is authorized to determine according to the market situation

20. Reference date for any additional share exchange, stock swap, or subscription:

the UMC Chairman or his designee is authorized to determine according to the market situation

21. Possible dilution of equity in case of any additional share exchange, stock swap, or subscription: Dilution depending on the pricing conversion premium

22.Reasonableness and necessity of capital raising following a cash capital reduction (applicable to companies that have conducted a cash capital reduction in the current year or the preceding year): N/A

23. Any other matters that need to be specified:

(1) The Unsecured Overseas Convertible Bonds issuance will be subjected to the approval of Securities and Futures Bureau, Financial Supervisory Commission. Additional announcement will be made thereafter when terms and conditions are materialized.

(2) The issuance of the Bonds includes tranche A and tranche B. Tranche A and tranche B together shall be up to US$ 1.8 billion (including over subscription numbers). The Company will elect to issue either tranche A or tranche B, or a combination of both, within the total issue amount.

(3) The Chairman or his designee is authorized by the board to determine, based on actual market conditions, the material terms of the 7th issuance of unsecured overseas convertible bonds, including the actual total issue amount (including the actual issue amount of tranche A and tranche B), the issue amount, issue price, the issue date, terms and conditions for the issuance, project items, redemption conditions, put conditions, conversion price adjustments, actual issue and raised amount, coupon rate, the plan for utilization of proceeds, expected schedule and expected benefits, and all other related matters; and may make necessary amendments or

 

 

adjustments in accordance with instructions from the competent authorities or based on operational assessment or objective circumstances.

(4) To facilitate the offering and issuance of the Bonds, The Chairman or his designee is authorized to negotiate, sign, and deliver all contracts and documents required for the issuance of the Bonds on behalf of the Company, and to have full authority to handle all related matters for the Company.

 

Source: View Original Filing on SEC EDGAR

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