6-K

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON D.C. 20549

FORM 6-K

Report ofForeign Private Issuer

Pursuant to Rule 13a-16 or15d-16 of

the Securities Exchange Act of 1934

November 26, 2021

CHINASOUTHERN 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  ☐

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):  ☐

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes  ☐    No  ☒

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): _N/A_

China Southern Airlines Company Limited (the “Company”) published the following announcement on November 24, 2021 on the Hong Kong Stock Exchange’s website at:

https://www1.hkexnews.hk/listedco/listconews/sehk/2021/1124/2021112400333.pdf, in relation to the change of employees’ representative supervisor of the Company.

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

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.

EX-99.1

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 norepresentation 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

CHANGE OFEMPLOYEES’ REPRESENTATIVE SUPERVISOR

The supervisory committee (the “Supervisory Committee”) of China Southern Airlines Company Limited (the “Company”) is pleased to announce that, the 2nd joint meeting of the 5th session of employees’ representatives meeting of the Company has been recently held and Mr. Yang Bin was elected as an employees’ representative supervisor of the 9th session of the Supervisory Committee of the Company, effective from 23 November 2021. Ms. Mao Juan shall cease to be the employees’ representative supervisor of the Company after the appointment of Mr. Yang Bin. Ms. Mao Juan confirms that there is no disagreement between her and the Company and there is no matter that needs to be brought to the attention of the shareholders. The Company would like to thank Ms. Mao Juan for her contribution to the Company.

The biographical details of Mr. Yang Bin are set out below:

Mr. Yang Bin, male, born in September 1968 (aged 53), graduated from the Accountancy Department of Finance and Economics College in Shenyang University, majoring in Industrial Accounting. He obtained his MBA from College of Business Management, Liaoning University and an Executive Master of Business Administration (EMBA) degree from School of Economics and Management, Tsinghua University. He is a qualified senior accountant. He began his career in November 1991, and joined the Chinese Communist Party in July 1995. He served as the Deputy General Manager of the Finance Department of the Company from June 2005. He served as the Secretary of the General Party Branch and Deputy General Manager of the Finance Department of the Company from August 2010. He served as the General Manager of the Finance Department of the Company from May 2015. From April 2017, he served as the General Manager of the Finance Department in the China Southern Air Holding Company Limited and the Company. He served as the General Manager of Hunan Branch of the Company from May 2019. He served as the General Manager of Audit Department in the China Southern Air Holding Company Limited and the Company from August 2021.

Mr. Yang Bin will enter into a service contract with the Company and shall hold his office until the expiry of the term of the 9th session of the Supervisory Committee.

Mr. Yang Bin will not receive any supervisor’s fee but will receive salary based on his position in the Company, the exact amount of which is determined by the working salary system of the Company.

As at the date of this announcement, save as disclosed, Mr. Yang Bin (i) had not held any directorships in other publicly listed companies in the last three years; (ii) had not had any relationship with any directors, supervisors, senior management, substantial or controlling shareholders of the Company; and (iii) had not had any interests in shares of the Company within the meaning of Part XV of the Securities and Futures Ordinance (Chapter 571 of the Laws of Hong Kong).

There is no other matter relating to the appointment of Mr. Yang Bin that needs to be brought to the attention of the shareholders, nor is there any other information to be disclosed pursuant to Rule 13.51(2)(h) to (v) of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited.

Guangzhou, the People’s Republic of China

24 November 2021

As at the date of this announcement, thedirectors include Ma Xu Lun and Han Wen Sheng as executive directors; and Liu Chang Le, Gu Hui Zhong, Guo Wei and Yan Andrew Y as independent non-executive directors.