Welcome to Centennial Old Students Association
The Centennial Old Students Association (CeOSA) is a global network of Centennial Secondary School - Mattru Jong - alumni. It was started in Sierra Leone and has members in the USA and the United Kingdom. It is a nonprofit organization in USA.
To build upon the past and transform Centennial Secondary School into a 21st-century academic institution with continued strong Christian foundation and academic excellence.
To provide an environment through projects and programs that would provide a strong Christian education for all children attending Centennial Secondary School.
To provide a reunion platform for alumni to work together to support this mission.