The enclosed announcement (the SSE Announcement ) was published by Air China Limited ( Air China ) on the Shanghai Stock Exchange on 15 April 2021, which contains combined operating data for March 2021 for Air China and its subsidiaries (collectively, the Group ). This announcement enclosing the SSE Announcement is made by Air China pursuant to Rules 13.09 and 13.10B 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). The data in the enclosed SSE Announcement was calculated based on the internal statistics of the Group, which may differ from the data disclosed in the relative periodic reports. Investors are hereby reminded of the risks which may result from inappropriate reliance upon or utilization of the