The Mabuno Elementary School Alumni Association (MESAA) is a non-profit organization created to foster relationships among students, parents, teachers, former students and graduates who are residents of Barangay Mabuno and nearby communities, and those who are living and working abroad united, willing and high-spirited to donate and share fruits of success and fortunes as a way of life gratefully giving back to God and for the existence of people in these far-flung areas of Gattaran.