ZNH China Southern Airlines Co Ltd

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON D.C. 20549

FORM 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16

of the Securities Exchange Act of 1934

January 29, 2024

CHINA SOUTHERN AIRLINES COMPANY LIMITED

68 Qi Xin Road

Guangzhou, 510403

People’s Republic of China

(Address of principal executive offices)

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  ☐

China Southern Airlines Company Limited (the “Company”) published the following announcement on January 26, 2024 on the Hong Kong Stock Exchange’s website at:

https://www1.hkexnews.hk/listedco/listconews/sehk/2024/0126/2024012601153.pdf, in relation to the announcement on estimated loss in the annual results for the year of 2023.

The announcement in English is included as an exhibit to this Form 6-K.

Certain statements contained in this announcement may be viewed as “forward-looking statements” within the meaning of Section 27A of the U.S. Securities Act of 1933, as amended, and Section 21E of the U.S. Securities Exchange Act of 1934, as amended. Such forward-looking statements involve known and unknown risks, uncertainties and other factors, which may cause the actual performance, financial condition or results of operations of the Company to be materially different from any future performance, financial condition or results of operations implied by such forward-looking statements. Further information regarding these risks, uncertainties and other factors is included in the Company’s filings with the U.S. Securities and Exchange Commission. You should not place undue reliance on these forward-looking statements. All information provided in this announcement is as of the date of this announcement, unless otherwise stated, and we undertake no duty to update such information, except as required under applicable law.

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.

Exhibit 99.1

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.

(a joint stock limited company incorporated in the People’s Republic of China with limited liability)

(Stock Code: 1055)

ANNOUNCEMENT ON ESTIMATED LOSS IN THE ANNUAL

RESULTS FOR THE YEAR OF 2023

This announcement is made by China Southern Airlines Company Limited (the “Company”) pursuant to Rule 13.09 of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the “Listing Rules”) and the Inside Information Provisions (as defined in the Listing Rules) under Part XIVA of the Securities and Futures Ordinance (Chapter 571 of the Laws of Hong Kong).

1 January 2023 to 31 December 2023 (the “Reporting Period”)

In 2023, as the domestic economy continued to recover and multiple unfavourable impacts gradually receded, the Company grasped the market opportunities, proactively enhanced the level of capacity, seized the hot markets, strengthened lean management and control on costs, and accelerated and optimized the utilization of idle assets, resulting in a significant year-on-year reduction in loss of operating efficiency. However, due to a number of factors such as the relatively slow recovery of international passenger flights, the overall oversupply of domestic passenger transportation, the high level of oil prices, the impact of the strategic investment of Sichuan Airlines, the significant increase in the prices of aircraft and aviation materials due to the global supply chain disruptions as well as the depreciation of the Renminbi, the Company is still facing greater operating pressure and the Company expects to record a loss in the operating results for the year of 2023.

The finance department of the Company is making every effort to prepare the financial statements for the year of 2023. In respect of this estimated results, there is no substantial uncertainty which may affect its accuracy.

The data set out in this announcement is only preliminary accounting data. The specific and accurate financial data should be those to be disclosed in the audited 2023 annual report of the Company. Investors are advised to pay attention to such investment risks involved.

Guangzhou, the People’s Republic of China

26 January 2024

As at the date of this announcement, the Directors include Ma Xu Lun, Han Wen Sheng and Luo Lai Jun as executive Directors; and Pansy Catilina Chiu King Ho, Gu Hui Zhong, Guo Wei and Cai Hong Ping as independent non-executive Directors.