[THIS CIRCULAR IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION If you are in any doubt If you have sold or transferred (a joint stock limited company incorporated in the People’s Republic of China with limited liability) (Stock Code: 1055) (1) PROPOSED AUTHORIZATION TO XIAMEN AIRLINES ON THE PROVISION OF GUARANTEES TO HEBEI AIRLINES (2) PROPOSED APPOINTMENT OF THE NON-EXECUTIVE DIRECTOR] [(a joint stock limited company incorporated in the People’s Republic of China with limited liability) (Stock Code: 1055) SUPPLEMENTAL NOTICE OF ANNUAL GENERAL MEETING Company ) AGM ) Reference is made to the Notice of Annual General Meeting dated 12 April 2016 of China Southern Airlines Company Limited (the “ Additional proposals have been proposed by the Board to be] [(a joint stock limited company incorporated in the People’s Republic of China with limited liability) (Stock Code: 1055) Attachment B The number of H Shares to which 1 this proxy form relates Second Form of Proxy for Annual General Meeting 2 3 4 5 I/We Ordinary Resolutions 5 For 5 Against 5 Abstain 1. 2. 3. To consider and approve] [(a joint stock limited company incorporated in the People’s Republic of China with limited liability) （在中華人民共和國註冊成立的股份有限公司 ) (Stock Code 股份代號：1055) NOTIFICATION LETTER 通知信函 12 May 2016 (1) Dear Non-registered holder China Southern Airlines Company Limited (the ‘‘Company’’) — Notice of Publication of Supplemental Circular and Supplemental Notice of Annual General Meeting (‘‘Current Corporate Communications’’) www.csair.com www.hkexnews.hk ® ® The English] []

[Hong Kong Exchanges and Clearing Limited and ANNOUNCEMENT PROPOSED APPOINTMENT OF THE NON-EXECUTIVE DIRECTOR Board Directors Company CSAHC AGM On 11 May 2016, the board (the “ Articles of Association Proposed Appointment According to the recommendation of CSAHC, the Board proposed to nominate Mr. Wang Chang Shun as the non-executive Director of the seventh session of the Board (the “] []