On 14 March 2017, Ms.Saranya Boonyawattana, Vice President of Foreign Cooperation and Protocol Department of AOT welcomed representatives from Narita International Airport Promotion Foundation (NPF) lead by Mr.Ryosuke Nozawa, Cheif Environmental Division, Environmental Section II.  The delegates attended a briefing on Technology for Passenger Services and Customer Satisfaction Programme as well as an airport tour at the passenger terminal of Suvarnnabhumi Airport.  NPF is an affiliate company of Narita International Airport Corporation (NAA) which supervise Narita International Airport, Japan and is one of AOT Sister Airport.