# EDGAR Filing Document

**Accession Number:** 0001033767
**File Stem:** 0001564590-23-000886
**Filing Date:** 2023-1
**Character Count:** 11226
**Document Hash:** e5babaa6f87609f088d9fd82bcf425ce
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001564590-23-000886.hdr.sgml**: 20230130

**ACCESSION NUMBER**: 0001564590-23-000886

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20230130

**FILED AS OF DATE**: 20230130

**DATE AS OF CHANGE**: 20230130

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** UNITED MICROELECTRONICS CORP
- **CENTRAL INDEX KEY:** 0001033767
- **STANDARD INDUSTRIAL CLASSIFICATION:** SEMICONDUCTORS & RELATED DEVICES [3674]
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** F5
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-15128
- **FILM NUMBER:** 23565088

**BUSINESS ADDRESS:**
- **STREET 1:** 8F, NO.68, SEC. 1, NEIHU RD.,
- **CITY:** TAIPEI
- **STATE:** F5
- **ZIP:** 11493
- **BUSINESS PHONE:** 886-2-2658-9168

**MAIL ADDRESS:**
- **STREET 1:** 8F, NO.68, SEC. 1, NEIHU RD.,
- **CITY:** TAIPEI
- **STATE:** F5
- **ZIP:** 11493

### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

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### FORM 6-K

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#### REPORT OF FOREIGN ISSUER

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

#### OF THE SECURITIES EXCHANGE ACT OF 1934

#### January 30, 2023

#### (Commission File Number: 001-15128)

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## United Microelectronics Corporation

#### (Translation of registrant's name into English)

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#### No.3 Li Hsin Road II

#### Science Park

#### Hsinchu, Taiwan, R.O.C.

#### (Address of principal executive office)

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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 ☒&nbsp;&nbsp;&nbsp;&nbsp; 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): ☐

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#### 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 | United Microelectronics Corporation |
| By: | Chitung Liu |
| Name: | Chitung Liu |
| Title: | CFO |

---

Date: January 30, 2023

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#### EXHIBIT INDEX

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| | |
|:---|:---|
| **Exhibit**  | **Description**  |
| <br> 99 | <br> [<u>6K on 01/30/2023</u>](umc-ex99_7.htm) |

---

## Ex-99

#### &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;www.umc.com
**Exhibit**

<u>Exhibit</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>Description</u>

99.1 Announcement on 2022/12/30: UMC will convene Q4 2022 Investor Conference

99.2 Announcement on 2023/01/04: To announce the repurchase and cancellation of Currency Linked Zero Coupon Exchangeable Bonds due 2026

99.3 Announcement on 2023/01/11: The change of Chief Information Security Officer

99.4 Announcement on 2023/01/06: December Revenue

99.5 Announcement on 2023/01/15: the trading and pledge of UMC common shares by directors, executive officers and 10% shareholders of UMC

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#### Exhibit 99.1

#### UMC will convene Q4 2022 Investor Conference
1. Date of institutional investor conference: 2023/01/16

2. Time of institutional investor conference: 17:00

3. Location of institutional investor conference: Online teleconference

4. Outline of institutional investor conference:

UMC Q4 2022 Financial and Operating Results

5. Any other matters that need to be specified: None

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#### Exhibit 99.2

#### To announce the repurchase and cancellation of Currency Linked Zero Coupon Exchangeable Bonds due 2026
1. Date of occurrence of the event: 2023/01/04

2. Company name: UNITED MICROELECTRONICS CORP.

3. Relationship to the Company (please enter "head office" or "subsidiaries"): head office

4. Reciprocal shareholding ratios: N/A

5. Cause of occurrence:

During the fourth quarter of 2022, the Company has repurchased US$20.6 million principal amount of Bonds and has cancelled such repurchased Bonds.

6. Countermeasures: None

7. Any other matters that need to be specified: None

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#### Exhibit 99.3

#### The change of Chief Information Security Officer
1. Type of personnel changed (please enter: spokesperson, acting spokesperson, important personnel (CEO, COO, CMO, CSO, etc.), financial officer, accounting officer, corporate governance officer, chief information security officer, research and development officer, chief internal auditor, or designated and non-designated representatives):

Chief Information Security Officer

2. Date of occurrence of the change: 2023/01/11

3. Name, title, and resume of the previous position holder: S S Hong, Vice President

4. Name, title, and resume of the new position holder: TS Wu, Vice President

5. Type of the change (please enter: "resignation", "position adjustment", "dismissal", "retirement", "death" or "new replacement"): position adjustment

6. Reason for the change: position adjustment

7. Effective date: 2023/01/11

8. Any other matters that need to be specified: None

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#### Exhibit 99.4

#### United Microelectronics Corporation
January 6, 2022

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 December 2022.

1) Sales volume (NT$ Thousand)

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| Period | Items | 2022 | 2021 | Changes | % |
| December | Net sales | 20946009 | 20279580 | 666429 | 3.29% |
| Year-to-Date | Net sales | 278705264 | 213011018 | 65694246 | 30.84% |

---

2) Funds lent to other parties (NT$ Thousand) 

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| | | | |
|:---|:---|:---|:---|
| Balance as of period end | This Month<br> (actual amount provided) | Last Month<br> (actual amount provided) | Limit of lending |
| *UMC (Note1)* | 0 | 0 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;31481040 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; *Note1: On April 28, 2021, the board of directors resolved to lend funds to Wavetek for the amount up to NT$500 million. The amount lent to Wavetek expired in July, 2022.* | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; *Note1: On April 28, 2021, the board of directors resolved to lend funds to Wavetek for the amount up to NT$500 million. The amount lent to Wavetek expired in July, 2022.* | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; *Note1: On April 28, 2021, the board of directors resolved to lend funds to Wavetek for the amount up to NT$500 million. The amount lent to Wavetek expired in July, 2022.* | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; *Note1: On April 28, 2021, the board of directors resolved to lend funds to Wavetek for the amount up to NT$500 million. The amount lent to Wavetek expired in July, 2022.* |

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3) Endorsements and guarantees (NT$ Thousand)

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| | | | |
|:---|:---|:---|:---|
| Balance as of period end | This Month<br> (actual amount provided) | Last Month<br> (actual amount provided) | Limit of lending |
| *UMC* | 10217964 | 13436500 | 141664679 |
|  *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 and December 16, 2022, the board of directors resolved to provide endorsement to USC(Xiamen)'s syndicated loan from banks for the amount up to US$30 million and CNY¥ 2,121 million.* | *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 and December 16, 2022, the board of directors resolved to provide endorsement to USC(Xiamen)'s syndicated loan from banks for the amount up to US$30 million and CNY¥ 2,121 million.* | *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 and December 16, 2022, the board of directors resolved to provide endorsement to USC(Xiamen)'s syndicated loan from banks for the amount up to US$30 million and CNY¥ 2,121 million.* | *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 and December 16, 2022, the board of directors resolved to provide endorsement to USC(Xiamen)'s syndicated loan from banks for the amount up to US$30 million and CNY¥ 2,121 million.* |

---

4) Financial derivatives transactions:

aNot under hedging accounting: NT$ thousand

#### UMC

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| | | | | |
|:---|:---|:---|:---|:---|
| *&nbsp;&nbsp;&nbsp;&nbsp;Financial instruments* | Option | Option | Forwards | IRS |
| *&nbsp;&nbsp;&nbsp;&nbsp;Financial instruments* | Put | Call | Forwards | IRS |
| *&nbsp;&nbsp;&nbsp;&nbsp;Deposit Paid* | 0 | 0 | 0 | 0 |
| *&nbsp;&nbsp;&nbsp;&nbsp;Royalty Income (Paid)* | 0 | 0 | 0 | 0 |
| *&nbsp;&nbsp;&nbsp;&nbsp;Unwritten-off Trading* |  |  |  |  |
| *&nbsp;&nbsp;&nbsp;&nbsp;Contracts* | 0 | 0 | 0 | 0 |
| *&nbsp;&nbsp;&nbsp;&nbsp;Fair Value* | 0 | 0 | 0 | 0 |
| *&nbsp;&nbsp;&nbsp;&nbsp;Net profit (loss) from Fair Value* | 0 | 0 | 0 | 0 |
| *&nbsp;&nbsp;&nbsp;&nbsp;Written-off Trading* |  |  |  |  |
| *&nbsp;&nbsp;&nbsp;&nbsp;Contracts* | 0 | 0 | 5384967 | 0 |
| *&nbsp;&nbsp;&nbsp;&nbsp;Realized profit (loss)* | 0 | 0 | (81301) | 0 |

---

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#### Exhibit 99.5

#### United Microelectronics Corporation
For the month of December, 2022

This is to report 1) the trading of directors, executive officers and 10% shareholders of United Microelectronics Corporation ("UMC") (NYSE: UMC); 2) the pledge and clear of pledge of UMC common shares by directors, executive officers and 10% shareholders of UMC;

1) The trading of directors, executive officers and 10% shareholders

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| | | | | |
|:---|:---|:---|:---|:---|
| *Title* | *Name* | *Number of shares as of November 30, 2022* | *Number of shares as of December 31, 2022* | *Changes* |
| Senior Vice President | Lucas S Chang | 1520000 | 1500000 | (20000) |

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2) The pledge and clear of pledge of UMC common shares by directors, executive officers and 10% shareholders: 

<u> *Title*</u> <u> *Name*</u> <u> *Number of shares as of November 30, 2022*</u> <u> *Number of shares as of December 31, 2022*</u> <u> *Changes*</u> <br> <u> --</u> <u> --</u> <u> --</u> <u> --</u> <u> --</u>