Upcountry-Schools Development Project: Due to insufficient the toilet room for a large number of students, Sumitomo Corporation Thailand, Ltd. had supported the school's requirements by providing toilet room construction for Baan Bong Tii School. On 26 March 2009, staffs from Sumitomo Corporation Thailand, Ltd., presided over the presentation ceremony for Toilet Room and Educational Support Items to Ms.Sangrawee Sookprasert, Principle as the representatives of Baan Bong Tii School.