✈ The plane has touched down in Ulan Bator, Mongolia, and the tantalizing scent of cheese cakes wafts through the air. Now, let the staff from the #AirChina Ulan Bator Office guide you through customs, where the airport duty-free shops have prepared special perks just for #AirChina passengers. A friendly reminder from the #AirChina Ulan Bator Office: Once you step off the plane, hold on tight to your boarding pass! #AirChinaMoments | Air China