Company: SHG
Filing Date: 2025-08-20
Form Type: 6-K
Source: 0001263043-25-000005
Chunk: 0

Company: SHINHAN FINANCIAL GROUP CO LTD
Filing Date: 2025-08-20
Form: 6-K
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

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FORM 6-K

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REPORT OF FOREIGN PRIVATE ISSUER

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

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the Month of August 2025

Commission File Number: 001-31798

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SHINHAN FINANCIAL GROUP CO., LTD.

(Translation of registrant's name into English)

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20, Sejong-daero 9-gil, Jung-gu, Seoul 04513, Korea
(Address of principal executive offices)

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

Form 20-FForm 40-F</div>

Shinhan Bank’s Board made a resolution to issue a Write-down Contingent Capital Securities On August 20, 2025, the board of directors of Shinhan Bank, our wholly-owned bank subsidiary, made a resolution to issue Write-down Contingent Capital Securities. 1. Purpose of issuance: To maintain capital requirements under the Basel III 2. Details of issuance:

| Type of Securities             | Write-down Contingent Capital Securities(Basel 3 Compliant Tier2 Subordinated Debt)                                                                                                                                                                                                                                                     |
| Total Amount of Issuance Limit | KRW 300 billion                                                                                                                                                                                                                                                                                                                         |
| Maturity of Securities         | -                                                                                                                                                                                                                                                                                                                                       |
| Point of Non-Viability         
 Trigger Event                  | Under Article 2 of the Act on the Structural Improvement of the Financial Industry, the total amount of the contingent capital securities (including interests or dividends) will be written off without any prior consent or approval from related parties if the issuing company is designated as an insolvent financial institution. |

* The details of issuance and interest rate, maturity will be delegated to the CEO of Shinhan Bank.

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, thereunto duly authorized.

| Date: August 20, 2025 |     | Shinhan Financial Group Co., Ltd. 
 (Registrant)                      
 By:                               |     | /s/ CHUN Sang Yung |
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